View IC-JJMQFP44_3723518.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ic-jj power management ic rev a1, page 1/17 mfq44 features applications supply voltage range of vbat= 6 to 16.5v autarky function to maintain temporarily output voltages with breakdown of supply voltage adjustable 200ma boost converter (va1= vbat+2v to 48v) 6v step-down regulator with integrated 125khz oscillator two downstream 5v linear regulators with 200ma/60ma output current 12v/30ma tri-state output low standby current of typ. 30a integrated high/low-side drivers e.g. to attach indicator lamps overtemperature shutdown of high- and low-side drivers undervoltage detection serial single-wire communication interface watchdog for monitoring of the external -controller cmos-compatible inputs ttl-/cmos-compatible outputs esd protection universal voltage supply ic with monitoring and autarky function for the voltage supply of auto- motive and industrial applica- tions package block diagram ? 2000 ic-haus gmbh tel. +49-6135-9292-0 integrated circuits fax +49-6135-9292-192 am kuemmerling 18, d-55294 bodenheim http://www.ichaus.com vcc +5v/200ma +5v/60ma vbat+2v...48v +12v/30ma enable standby reg vfp ic-jj lvb driver driver autarky autarky control converter vva vhl vh vh-switching vcc reg vref vref oscillator driver nrhd cos reference bias paks pfl pcra tcrd tcra tfl taks ncrd naks nfl cra +vbat pgnd gnd detection k-interface 50ma driver regulator temperatur esd vb vcc + + vcc hd va1x vbl va1 vb va boost twd vbg rset agnd vmr vm autarky test aid vtu nvta rxd txd kvfp tfp ena nres logic + in-/output reg vcc pcrd 100f cva1 150h cva 2200f d2 33nf lvh 270h cvh 33f cvcc 4.7f 1f cvref cvfp 10nf rkl rklr 511 : 511 : rset 10k : cvbg 100nf cos reset + watchdog & & 200ma 30ma 30ma stages d1 d3 la1 r1 r2 cvb 100f ckl
ic-jj power management ic rev a1, page 2/17 general description monolithic device ic-jj supplies electronic systems from a single input voltage vbat (6v to 16.5v) with voltages which range from 5v to 48v. the autarky function guarantees that the output voltages are maintained for up to several hundred milliseconds, even after the input voltage has been aborted. a step-up converter produces a voltage of vbat+2v to 48v, whose setpoint is adjusted via two external resistors at va1x. two 5v linear regulators provide 200ma (vcc) and 60ma (vref). alternatively, 260ma are available from the 6v step-down converter (vh) whose switching frequency is generated by an integrated 120khz oscillator. an additional tristate-competent output provides 12v to 30ma and can be activated via a control input for writing data to eeproms, for example. the integrated low voltage and autarky detection function indicates at the error message outputs vtu and nvta when the relevant low voltage thresholds are reached; there are two different error message outputs for this purpose. the error message is deleted by an external low signal and not when the supply voltage rises again. information on temporary voltage drops is retained. if the autarky voltage threshold is undershot, the ic automatically switches into autarky mode. this mode can also be simulated in order to test the autarky capacitor cva. integrated high- and low-side drivers permit various loads to be connected, such as panel indicators (visual monitors), for example. the drivers are switched via control inputs and status outputs are signaling the current switching state back to the controller. ic-jj monitors the chip temperature; with excessive temperature the high- and low-side drivers are switched off to reduce the power dissipation. the integrated watchdog can monitor the correct operation of an external processor. if used, the bi-directional serial communication interface connects the chip with external diagnosis components. the ic can be switched to standby via the input ena and then draws a low standby current of typically 30 a. the device is protected against destruction due to esd.
ic-jj power management ic rev a1, page 3/17 1 pcrd 2 3 tcrd 4 tcra 5 nres 6 vva 7 gnd 8 vbg 9 rset 10 agnd va1 33 vhl 32 vfp 31 jj code... yyww ... 11 ena takse va 30 n.c. 29 n.c. 28 vb 27 va1x 26 vmr 25 vm 24 k 23 package mqfp44 according to the jedec standard pin configuration mqfp44 (top view) pin functions no. name function no. name function 1 pcrd message output for pin ncrd 25 vmr measurement input undervoltage- and 2 taks trigger input for output naks autarky detection 3 tcrd trigger input for output ncrd 26 va1x setpoint assignment va1 4 tcra trigger input for output cra 27 vb supply during autarky mode 5 nres reset, low active 28 n.c. 6 vva capacitor test output 29 n.c. 7 gnd ground 30 va voltage va 8 vbg bandgap reference voltage 31 vfp +12v tri-state output (30ma) 9 rset attachment rset 32 vhl attachment inductance for 10 agnd analog ground step-down regulator 11 ena enable 33 va1 vbat+2v...+48v output 12 cos capacitor for oscillator adjustment 34 vbl attachment inductance for 13 tfp trigger input for output vfp boost converter 14 twd trigger input for watchdog 35 pgnd ground 15 nrhd trigger input for pin hd 36 nfl 200ma low-side driver output 16 txd trigger input k-interface 37 naks 30ma low-side driver output 17 rxd digital output k-interface 38 ncrd 30ma low-side driver output 18 vtu message output undervoltage detection 39 cra 50ma high-side driver output 19 nvta message output autarky detection 40 hd tri-state output, low-side driver 20 vref +5v output (60ma) 41 tfl trigger input for output nfl 21 vh +6v output 42 pfl message output for pin nfl 22 vcc +5v output (200ma) 43 paks message output for pin naks 23 k bidirectional k-interface 44 pcra message output for pin cra 24 vm measurement input undervoltage- and autarky detection
ic-jj power management ic rev a1, page 4/17 all voltages are referenced to ground unless otherwise noted. all currents into the device pins are positive; all currents out of the device pins are negative. absolute maximum ratings values beyond which damage may occur; device operation is not guaranteed. item symbol parameter conditions fig. unit min. max. g001 v() voltage at cos, twd, vbg, rset, rxd, txd, tfp, taks, tfl, tcrd, tcra, pfl, paks, pcrd, pcra, nres, nvta, vtu, nrhd, vva v() # vcc+ 0.3v -0.3 5.5 v g002 i() current in pins cos, twd, vbg, rset, rxd, txd, tfp, taks, tfl, tcrd, tcra, pfl, paks, pcrd, pcra, nres, nvta, vtu, nrhd, vva -10 10 ma g003 esd esd susceptibility at vm, vmr, vhl mil-std-883, method 3015.7 hbm 100pf discharged through 1.5k s 0.8 kv g004 esd esd susceptibility at all other pins mil-std-883, method 3015.7 hbm 100pf discharged through 1.5k s 1.4 kv g201 v(naks) voltage at naks -1.2 48 v g202 i(aks) current in naks -30 30 ma g401 v(ena) voltage at ena -0.3 48 v g402 i(ena) current in ena -4 4 ma g501 v(vhl) voltage at vhl v(vhl) # v(va1) -1.4 48 v g502 i(vhl) current in vhl -600 10 ma g503 v(vh) voltage at vh v(vh) $ v(vcc) v(vh) $ v(vref) -0.3 7 v g504 i(vh) current in vh -6 600 ma g505 v(vh) voltage at vh v(vh) $ v(vcc) v(vh) $ v(vref), i < 50ma -0.3 10 v g601 v(vcc) voltage at vcc v(vcc) # v(vh) -0.3 5.5 v g602 i(vcc) current in vcc -300 10 ma g701 v(vref) voltage at vref v(vref) # v(vh) -0.3 5.5 v g702 i(vref) current in vref -100 10 ma g901 v(vfp) voltage at vfp -0.3 12.5 v g902 i(vfp) current in vfp -40 6 ma ga01 v(va1) voltage at va1 -0.3 48 v ga02 i(va1) current in va1 -1600 10 ma ga03 v(va1x) voltage at va1x -0.3 7 v ga04 i(va1x) current in va1x -4 4 ma ga05 v(vbl) voltage at vbl -0.3 48 v ga06 i(vbl) current in vbl -10 1600 ma gb01 v(k) voltage at k -8.8 48 v gb02 i(k) current in k -6 200 ma gc01 v(hd) voltage at hd -0.3 48 v gc02 i(hd) current in hd -4 4 ma gd01 v(nfl) voltage at nfl applied via lamp of 2w -1.2 48 v gd02 i(nfl) current in nfl -200 200 ma gg01 v(va) voltage at va -0.3 48 v gg02 i(va) current in va v(va, vb)< 3v, t< 2s -20 500 ma
ic-jj power management ic rev a1, page 5/17 absolute maximum ratings values beyond which damage may occur; device operation is not guaranteed. item symbol parameter conditions fig. unit min. max. gg03 v(vb) voltage at vb -0.3 48 v gg04 i(vb) current in vb v(va, vb)< 3v, t< 2s -500 50 ma gg05 imax(vb) max. current load at vb during autarky case va1< 30.6v, cvb< 120f, rvb> 9.5 s -200 0 ma gh01 v(ncrd) voltage at ncrd -1.2 48 v gh02 i(ncrd) current in ncrd -30 30 ma gi01 v(cra) voltage at cra -8.8 48 v gi02 i(cra) current in cra -50 50 ma gp01 v(vm) voltage at vm via 511 s -1.5 48 v gp02 i(vm) current in vm -55 20 ma gp03 v(vmr) voltage at vmr via 511 s -1.5 48 v gp04 i(vmr) current in vmr -55 20 ma gp05 i(vm) current in vm t < 100ms -160 20 ma gp06 i(vmr) current in vmr t < 100ms -160 20 ma tg1 tj junction temperature -40 125 e c tg2 ts storage temperature range -40 125 e c tg3 tl lead temperature soldering, 10sec 260 e c thermal data operating conditions: +vbat= 6..16.5v, pgnd= gnd, cos= 680pf, rset= 10k s , rkl= 511 s , rklr= 511 s , tj= -40..125 e c, unless otherwise noted item symbol parameter conditions fig. unit min. typ. max. t001 ta operating ambient temperature range -40 95 e c t002 rthja thermal resistance chip / ambient 40 k/w
ic-jj power management ic rev a1, page 6/17 electrical characteristics operating conditions: +vbat= 6..16.5v, pgnd= gnd, cos= 680pf, rset= 10k s , rkl= 511 s , rklr= 511 s , tj= -40..125 e c, unless otherwise noted item symbol parameter conditions tj fig. unit e c min. typ. max. total device 1 i(va1) supply current in va1 outputs passive, va1= 30v, vh= 6v 8 3 52 ma 002 i(vh) supply current in vh in-/outputs passive, va1= 30v, vh= 6v 25 5 75 ma 003 i(kl, klr) supply current in kl, klr in-/outputs passive, switching regulator active, v(kl, klr)= 12v 81216ma 004 i(kl, klr) supply current in kl, klr in-/outputs passive, switching regulator active, v(kl, klr)= 6.5v 20 25 32 ma 5 i(kl, klr) supply current in kl, klr no external capacitance at va1, va, vb; ena= lo, v(kl, klr) < 18v 100 a 006 rpu() pull-up resistor to vcc at inputs twd, txd, nrhd, nres, nvta, vtu 27 5.4 9.1 15.4 k s k s 7 rpd() pull-down resistor to gnd at inputs tfp, taks, tfl, tcrd, tcra for tfp test mode= lo 27 8.8 14.7 24.6 k s k s 8 vpu() pull-up voltage to vcc at inputs twd, txd, nrhd, nres, nvta, vtu vpu()= v()- vcc; i()= -10..10a -0.3 v 9 vpd() pull-down voltage to gnd at inputs tfp, taks, tfl, tcrd, tcra i()= -10..10a, for tfp test mode= lo 0.3 v 10 vt()hi threshold voltage hi at inputs twd, txd, tfp, taks, tfl, tcrd, tcra, nrhd, nres, nvta, vtu 67 %vcc 11 vt()lo threshold voltage lo at inputs twd, txd, tfp, taks, tfl, tcrd, tcra, nrhd, nres, nvta, vtu 33 %vcc 12 vt()hys hysteresis at inputs twd, txd, tfp, taks, tfl, tcrd, tcra, nrhd, nres, nvta, vtu vt()hys= vt()hi- vt()lo 500 mv 13 vs()lo saturation voltage lo at outputs nres, nvta, vtu, rxd, pfl, paks, pcrd, pcra i()= 1.6ma, outputs lo 0.4 v 14 vs()hi saturation voltage hi vs. vcc at outputs rxd, pfl, paks, pcrd, pcra vs()= v()- vcc; i()= -1ma, outputs hi -0.8 v 15 isc() short-circuit current in outputs nres, nvta, vtu, hd v()= vcc, pins= lo, v(hd)= va1 27 10 30 ma ma 16 tsup() permissible spurious pulse width at inputs twd, txd, tfp, taks, tfl, tcrd, tcra, nrhd, nres, nvta, vtu no switching triggered 40 ns
ic-jj power management ic rev a1, page 7/17 electrical characteristics operating conditions: +vbat= 6..16.5v, pgnd= gnd, cos= 680pf, rset= 10k s , rkl= 511 s , rklr= 511 s , tj= -40..125 e c, unless otherwise noted item symbol parameter conditions tj fig. unit e c min. typ. max. total device (continued) 17 vc()lo esd clamp voltage lo at cos, twd, vbg, rset, agnd, rxd, txd, nres, nvta, vtu, vm, vmr, tfp, tfl, pfl, vh, vref, vcc, ena, taks, paks, tcrd, tcra, pcrd, pcra, nrhd, vva, hd, va1x, va, vb against gnd, i()= -10ma -1.4 -0.3 v 18 vc()lo esd clamp voltage lo at nfl, vhl, vfp, va1, vbl, ncrd, naks against pgnd, i()= -10ma -1.4 -0.3 v 19 vc()lo esd clamp voltage lo at k against gnd, i()= -10ma -15 -5.5 v 20 vc()lo esd clamp voltage lo against pgnd at cra against pgnd, i()= -10ma -15 -5.5 v 21 vc()hi esd clamp voltage hi at cos, twd, vbg, rset, agnd, rxd, txd, nres, nvta, vtu, vref, vcc, vh, va1x, vva, taks, paks, tfl, pfl, tcrd, tcra, pcrd, pcra, nrhd against gnd, i()= 10ma 5.5 14 v 22 vc()hi esd clamp voltage hi at tfp against gnd, i()= 10ma 5.5 16 v 023 vc()hi esd clamp voltage hi at vfp against pgnd, i()= 10ma 12.5 28 v 24 vc()hi esd clamp voltage hi at cra, ncrd, k, vm, vmr, nfl, naks, vhl, va1, vbl, va, vb, ena, hd against pgnd, i()= 10ma 27 48 52 60 v 25 tthl fall time at rxd, pfl, paks, pcrd, pcra, nres, nvta, vtu cl= 75pf v(): hi= 80% 6 lo= 20% vcc 60 ns 026 tthl rise time at rxd, pfl, paks, pcrd, pcra cl= 75pf v(): lo= 20% 6 hi= 80% vcc 80 ns 27 v() permissible voltage at va1, va, vb, vbl 48 v reference and bias 101 v(vbg) voltage at vbg cvbg= 10..200nf 27 2.36 2.44 2.52 v v 102 v(rset) voltage at rset r(rset/agnd)= 10k s 1% 27 2.36 2.44 2.52 v v 30ma low-side driver 201 vsnaks saturation voltage at naks i(naks)= 30ma, t < tab, taks= hi, naks= lo 1v 202 iscnaks short-circuit current in naks v(naks) < 18v, t < tab, taks= hi, naks= lo 27 65 200 ma ma 203 ipdnaks pull-down current in naks v(naks)= 2..16.5v, taks= lo 25 100 a 204 vtnaks switching threshold at naks for paks 2.25 2.75 v 205 vfnaks free-wheeling voltage at naks i(naks)= 10ma, taks= lo, naks= hi 48 v
ic-jj power management ic rev a1, page 8/17 electrical characteristics operating conditions: +vbat= 6..16.5v, pgnd= gnd, cos= 680pf, rset= 10k s , rkl= 511 s , rklr= 511 s , tj= -40..125 e c, unless otherwise noted item symbol parameter conditions tj fig. unit e c min. typ. max. thermal shutdown 301 toff thermal shutdown threshold for nfl, naks, cra, ncrd, k 135 160 e c 302 ton thermal lock-on threshold for nfl, naks, cra, ncrd, k 110 145 e c 303 thys temperature hysteresis thys= toff- ton 12 e c standby 401 v(ena)lo lower enable threshold 2 v 402 v(ena)hi upper enable threshold 4v 403 venahys hysteresis enable input 80 800 mv 404 v(ena) permissible voltage at ena 48 v 405 ipd(ena) pull-down current in ena v(ena)= 2..48v 5 50 a vh-switching regulator 501 vhn voltage at vh lvh= 150h20%..470h20%, cvh= 33f 20%, ri(lvh) < 1.1 s , i(vh)= -200..0ma 27 5.6 6 6.3 v v 502 ia(vhl) max. dc cutoff current in vhl vh < vhn -800 -500 ma 503 vs(vhl) saturation voltage at vhl vs()= v(va1)- v(vhl); i(vhl)= -300ma 1.3 v 504 vf(vhl) free-wheeling diode forward voltage vf()= v(gnd)- v(vhl); i(vhl)= -300ma 1.4 v 505 ilk(vhl) leakage current in vhl vhl= lo, v(vhl)= 0v..va1 -100 100 a 506 0 vh vh-switching regulator efficiency i(vh)= -200..-20ma 70 % regulator vcc 601 vccn voltage at vcc i(vcc)= -200..0ma, vh= 5.6..6.3v, cvcc $ 4.7 f f 30% 4.85 5.15 v 602 cvcc permissible capacitance at vcc to agnd tolerance 30% 3.3 f 603 ricvcc permissible internal resistance of capacitor at vcc 10 s 604 dvccoff turn-off threshold over- and undervoltage |vccoff - vccn| for nres= lo 200 mv 605 dvccon turn-on threshold over- and - undervoltage dvccon= |vccon - vccn|, nres= hi 40 mv 606 dvccres hysteresis of turn-un and turn- off threshold at vcc dvccres= |vccon - vccoff| 40 mv 607 tl(nres) reset pulse width lo at nres triggered by vcc 6.8 s 608 vr(vcc) voltage ratio vcc / vref i(vcc)= 0..200ma 0.99 101
ic-jj power management ic rev a1, page 9/17 electrical characteristics operating conditions: +vbat= 6..16.5v, pgnd= gnd, cos= 680pf, rset= 10k s , rkl= 511 s , rklr= 511 s , tj= -40..125 e c, unless otherwise noted item symbol parameter conditions tj fig. unit e c min. typ. max. regulator vref 701 vrefn voltage at vref i(vref)= -60..0ma, vh= 5.6..6.3v, cvref $ 1 f f 30% 4.9 5.1 v 702 cvref permissible capacitor at vref to agnd tolerance 30% 1 f 703 ricvref permissible internal resistance of capacitor at vref 10 s 704 dvrefoff turn-off threshold over- and undervoltage dvrefoff= |vrefoff - vrefn|, nres= lo 200 mv 705 dvrefon turn-on threshold over- and undervoltage dvrefon= |vrefon - vrefn|, nres= hi 40 mv 706 dvrefres hysteresis of turn-on and turn- off threshold at vref dvrefres= |vrefon-vrefoff| 20 mv 707 tl(nres) reset pulse width lo at nres triggered by vref 6.8 s 708 vf forward voltage discharging diode between vref and vcc i()= 20ma 1.2 v vfp-regulator 901 v(vfp) voltage at vfp i(vfp) # -30ma, va1 > 15v, tfp= hi 27 11.5 12 12.5 v v 902 isc(vfp) short-circuit current in vfp v(vfp) < 11.5v, tfp= hi 27 -200 -90 ma ma 903 ilk(vfp) leakage current in vfp v(vfp)= 0..10v, tfp= lo -10 10 a 904 ilk(vfp) leakage current in vfp v(vfp)= 10..12.5v, tfp= lo -10 250 a 905 tsu(vfp) settle time at vfp v(vfp)= 12v 0.5v 10 s boost converter a01 va1n voltage at va1 vb= 14v, lvb= 150h 20%, ri(lvb) < 1 s , i(va1)= -200..0ma 28.4 30.6 v a02 va1n voltage at va1 vb= 5v, i(va1)= -25..0ma 28.4 30.6 v a03 va1n voltage at va1 vb= 6.5v, i(va1)= -60ma 284 306 v a04 va1 voltage at va1 vb= 6.5v, i(va1)= -120ma 190 306 v a05 va1 voltage at va1 vb= 6.5v, i(va1)= -200ma 14.0 30.6 v a06 ico(vbl) dc cutoff current in vbl v(va1) < 28.5v 1 a a07 vs(vbl) saturation voltage at vbl vbl= lo, i(vbl)= 600ma 1 v a08 vf(vbl) forward voltage free-wheeling diode vf()= v(vbl) - v(va1); vbl= hi, i(vbl)= 20ma 1.1 v a09 vf(vbl) forward voltage free-wheeling diode vf()= v(vbl) - v(va1); vbl= hi, i(vbl)= 600ma 1.4 v a10 0 va1 efficiency of va1-regulator vb= 5v, v(va1) > 28.5v 50 % a11 0 va1 efficiency of va1-regulator vb= 6.5v, v(va1) > 28.5v 65 % a12 0 va1 efficiency of va1-regulator vb= 18v, v(va1) > 28.5v 80 % a13 ilk(vbl) leakage current in vbl v(vbl)= 0v..va1, vbl= hi -100 100 a a14 vr(va1) voltage ratio v(va1) / v(vref) internal va1-voltage divider 27 5.7 5.9 6.1
ic-jj power management ic rev a1, page 10/17 electrical characteristics operating conditions: +vbat= 6..16.5v, pgnd= gnd, cos= 680pf, rset= 10k s , rkl= 511 s , rklr= 511 s , tj= -40..125 e c, unless otherwise noted item symbol parameter conditions tj fig. unit e c min. typ. max. boost converter (continued) a15 ipu(va1x) pull-up current in va1x v(va1x) < 1v 27 -25 -5 -1 a a a16 vr(va1x) transformation ratio with external voltage divider r(va1/va1x) / r(va1x/agnd) v(va1)= (1+r(va1/va1x) / r(va1x/agnd)) v(vbg), r(va1x/agnd)= 1..5k, v(va1)= v(vb)..48v 218 k-interface b01 vs(k) saturation voltage at k i(k)= 15.7ma, txd= lo, t < tab 1.4 v b02 vs(k) saturation voltage at k i(k)= 32.4ma, txd= lo, t < tab 1.7 v b03 isc(k) short-circuit current in k v(k)= 2..27v, txd= lo, t < 100ms 27 60 150 ma ma b04 c(k) permissible input capacitance k 25 pf b05 ipu(k) pull-up current in k v(kl, klr)= 8..16.5v, v(k)= 0.2v..v(kl, klr)-1v v(va1) > v(vm) + 2v, txd= hi -80 -20 a b06 vt(k) switching threshold at k related to maximum v(kl, klr) v(kl, klr)= 6..16.5v, txd= hi 45 55 % b07 vt(k) switching threshold at k during autarky v(kl, klr) < 5.5v 27 54 60 66 %vcc %vcc b08 vhys(k) hysteresis at k v(kl, klr)= 6..16.5v or autarky 50 300 mv b09 tf(k) fall time at k r(klr/k)= 511 s , ck < 5nf, v(k) from hi= 80% 6 lo= 20% v(klr), txd from hi to lo 2s b10 in(k) current in k v(k)= -3v, txd= hi -8 ma b11 ilk(k) leakage current in k v(k) > kl, klr, txd = hi, v(k) < 27v, vm, vmr > 0v -20 20 a b12 vf(k) free-wheeling voltage at k i(k)= 10ma, txd= hi 48 v b13 vpu(k) pull-up current at k against v(vm, vmr) i(k)= -20a, txd= hi, v(vm), v(vmr)= 8..16.5v v(va1) > v(vm) + 2v -0.3 0.3 v b14 tp(k) transmission delay k 6 rxd f # 200khz, v(k) from 25% 6 75% v(vm, vmr) 62s b15 tp(k) transmission delay txd 6 kf # 200khz, v(k) from 75% 6 25% v(vm, vmr) 42s b16 dtp(k) transmission delay difference k 6 rxd, k lo 6 hi to k hi 6 lo f # 200khz, v(k) from 25% 6 75% v(vm, vmr) 1s b17 tf(k) fall time at k r(klr/k)= 511 s ,, ck< 10nf, v(k) from hi= 80% 6 lo= 20% v(klr), txd from hi to lo 1s watchdog c01 tl(nres) reset pulse width lo at nres triggered by watchdog 6.5 8.9 s c02 tu(twd) lower twd period for reset 27 404 480 558 s s c03 to(twd) upper twd period for reset 27 652 770 885 ms ms c04 tp(twd) permissible pulse width at twd twd detection at lo pulse 18 649.9 ms
ic-jj power management ic rev a1, page 11/17 electrical characteristics operating conditions: +vbat= 6..16.5v, pgnd= gnd, cos= 680pf, rset= 10k s , rkl= 511 s , rklr= 511 s , tj= -40..125 e c, unless otherwise noted item symbol parameter conditions tj fig. unit e c min. typ. max. watchdog (continued) c05 tt(twd) permissible spurious pulse width at twd no twd detection at lo pulse 6.5 s c06 ilk(hd) leakage current in hd v(hd)= 0v..va1, nrhd= lo -10 10 a c07 vs(hd)lo saturation voltage lo at output hd i()= 1.6ma, output lo 0.5 v 200ma low-side driver d01 vs(nfl) saturation voltage at nfl i(nfl)= 100ma, tfl= hi, nfl= lo, t < tab 1v d02 vs(nfl) saturation voltage at nfl i(nfl)= 200ma, tfl= hi, nfl= lo, t < tab 2v d03 isc(nfl) short-circuit current in nfl v(nfl) < 18v, tfl= hi, nfl= lo, t < tab 27 300 500 ma ma d04 isc(nfl) short-circuit current in nfl v(nfl) < 18v, t < tab, no supply voltage 27 300 500 ma ma d05 vt(nfl) threshold voltage at nfl 2.25 2.75 v d06 ipd(nfl) pull-down current in nfl v(nfl)= 2..16.5v,tfl= lo, nfl= hi 0.25 1 ma d07 vs(nfl) saturation voltage at nfl i(nfl)= 100ma, t < tab, without supply voltage 3.5 v d08 vs(nfl) saturation voltage at nfl i(nfl)= 200ma, t < tab, without supply voltage 4v d09 vf(nfl) free-wheeling voltage at nfl i(nfl)= 10ma, tfl= lo, nfl= hi 48 v d10 vf(nfl) free-wheeling voltage at nfl i(nfl)= 200ma, tfl= lo, nfl= hi 48 v autarky g01 il(va) charging current from va1 to va v(va)= 0..v(va1)- 2v 27 -33 -30 -27 ma ma g02 vs(va) saturation voltage at va i(va)= -2ma, v(va1) - v(va) 0.2 v g03 vs(vb) saturation voltage vb referred to va vs()= v(va)- v(vb); i(vb)= -500..0ma, lsa= on 3v g04 ilk(vb) leakage current in vb v(va) > v(vb), lsa= off -100 a g05 iilk(vb) inverse leakage current in vb v(vb)- v(va)= 0..5v, lsa= off 40 ma g06 v(vva) output voltage at vva related to v(va) i(vva)= -10..10a, v(vva)= 0.6v..vref- 0.1v 27 12 12.5 13 % % g07 isc(vva) short-circuit current in vva v(vva)= 0v..vref -1 10 ma g08 vamini minimal discharge voltage at va at test-discharging by nvta internal va1-voltage divider, va1x against gnd 27 20 21 22 v g09 vvalo lower turn-off threshold of converter 5.5 v g10 vvahi upper turn-off threshold of converter 7v g11 vhys hysteresis turn-off threshold vhys= vvahi- vvalo 0.2 1 v g12 vaminx minimal discharge voltage at va at test-discharging by nvta external va1-voltage divider 27 66 71 76 %va1 %va1 g13 imax (va,vb) maximal current load at va during autarky va1 < 30.6v, cvb < 120f, rvb > 9.5 200 ma
ic-jj power management ic rev a1, page 12/17 electrical characteristics operating conditions: +vbat= 6..16.5v, pgnd= gnd, cos= 680pf, rset= 10k s , rkl= 511 s , rklr= 511 s , tj= -40..125 e c, unless otherwise noted item symbol parameter conditions tj fig. unit e c min. typ. max. 30ma low-side driver h01 vs(ncrd) saturation voltage at ncrd i(ncrd)= 10ma, tcrd= hi, t < tab 0.5 v h02 vs(ncrd) saturation voltage at ncrd i(ncrd)= 30ma, tcrd= hi, t < tab 1.5 v h03 iscncrd short-circuit current in ncrd v(ncrd) < 18v, tcrd= hi, t < tab 27 65 200 ma ma h04 ipdncrd pull-down current in ncrd v(ncrd)= 2..16.5v, tcrd= lo 25 100 a h05 vt(ncrd) switching threshold at ncrd 2.25 2.75 v h06 vf(ncrd) free-wheeling voltage at ncrd i(ncrd)= 10ma, tcrd= lo, ncrd= hi 48 v h07 tlh(ncrd) rise time at ncrd r(klr/ncrd)= 1k, v(ncrd) from lo= 10% 6 hi= 90% v(kl, klr) 10 s h08 thl(ncrd) fall time at ncrd r(klr/ncrd)= 1k, cncrd < 50nf, v(ncrd) from lo= 90% 6 hi= 10%, v(kl, klr) 20 s h09 tf(ncrd) requested turn-on duration at ncrd tcrd= hi, t > tab, vs(ncrd) > 2.75v 16.2 31.2 s 50ma high-side driver i01 vs(cra) saturation voltage hi at cra against vb vs()= v(vb)- v(cra), i(cra)= -50ma, v(kl, klr)= 6..16.5v, tcra= hi, t < tab 2v i02 vt(cra) switching threshold at cra related to maximum v(kl, klr) v(kl, klr)= 6..16.5v, tcra= lo 45 55 % i03 vt(cra) switching threshold at cra during autarky v(kl, klr) < 5.5v 27 54 60 66 %vcc %vcc i04 vhyscra hysteresis at cra v(kl, klr)= 6..16.5v or autarky 50 300 mv i05 vf(cra) free-wheeling voltage at cra i(cra)= 10ma, tcra= lo, vb open 48 v i06 ipu(cra) pull-up current in cra v(cra) < vb- 2v, tcra= lo -100 -25 a i07 isc(cra) short-circuit current in cra v(cra) < 18v, tcra= hi, t < tab 27 -200 -100 ma ma i08 ir(cra) inverse current in cra v(cra) > v(b), tcra= lo 50 ma i09 tf(cra) requested turn-on duration at cra tcra= hi, vs(cra) > 2v, t > tab 16.2 31.2 s oscillator j01 fos oscillator frequency cos= 680pf 5%, va1 > 4.2v 27 110.5 130 149.5 khz khz
ic-jj power management ic rev a1, page 13/17 electrical characteristics operating conditions: +vbat= 6..16.5v, pgnd= gnd, cos= 680pf, rset= 10k s , rkl= 511 s , rklr= 511 s , tj= -40..125 e c, unless otherwise noted item symbol parameter conditions tj fig. unit e c min. typ. max. autarky detection p01 ri() input resistance at vm, vmr 27 50 100 220 k s k s p02 vvtulo lower undervoltage threshold at kl, klr rkl= rklr= 511 s 1% 27 8.75 9 v v p03 vvtuhi upper undervoltage threshold at kl, klr rkl= rklr= 511 s 1% 27 10 10.3 v v p04 vhys hysteresis undervoltage detection vhys= vvtuhi- vvtulo 27 0.8 1 1.2 v v p05 vautlo lower autarky threshold at kl, klr rkl= rklr= 511 s 1% 5.5 v p06 vauthi upper autarky threshold at kl, klr rkl= rklr= 511 s 1% 6 v p07 vhys hysteresis autarky detection vhys= vauthi- vautlo 80 300 mv p08 v(vm, vmr) permissible voltage at kl, klr 48 v p09 tt(vm, vmr) permissible spurious pulse width at vm, vmr no undervoltage detection, no autarky detection 6.5 s
ic-jj power management ic rev a1, page 14/17 va1 va1 x r1 r2 figure 1: adjustment v(va1) description of functions boost converter if va1x is connected to ground, a voltage of 30v becomes available at va1. an external voltage divider can be used to adjust voltages at va1 from vbat+2v to +48v. in this case the band gap voltage of 2.44v is present at va1x. the voltage at va1 can be calculated via va1= 2.44v ( (r1+r2)/r2). autarky / low voltage detection to create a system with a redundant voltage supply, measurement inputs vm and vmr are connected to kl15 and kl15r respectively via a 511 s resistor. if both supply inputs are used they need to be connected with 511 s to vbat. if only one of the two inputs (vm or vmr) is used the unused inputs must be connected to gnd. the system is checked for low voltage and autarky via the internal voltage dividers (at 100k s each). the voltage dividers are shut off in standby mode. the outputs of the two comparators for low voltage and autarky are and- gated, meaning that a message at vtu or nvta delayed by one clock pulse (8us) is only generated when the relevant voltage thresholds are undershot at both measurement inputs. a reset of the outputs vtu and/or nvta via the microcontroller with a rising edge at vtu is only possible if low voltage or autarky is no longer detected. autarky circuit / measurement of autarky capacitance the switch between va and vb is closed for at least 5 clock cycles after autarky has been detected. with this, the voltage of the autarky capacitor is connected to the input of the va1 up converter; a stable va1 voltage can thus be maintained during autarky. at the same time the 30ma current source, which supplies current for charging the autarky capacitor, is switched off. the voltage of the autarky capacitor can be measured at output vva (v(vva)= 1/8 v(va). this serves to check whether the capacitor is charged to a suitably high voltage to sustain the system during autarky. the capacitance of the capacitor can be determined while the capacitor is being charged. the system's energy consumption can be determined during autarky. autarky can be simulated using nvta as an input. if v(va) > 21v, then the switch between va and vb can be closed via a rising edge at nvta. the 30ma current source is then shut down and the autarky c apacitor is discharged to the level of the threshold voltage (v(va)= 21v). this is automatically followed by the switch being opened and the current source switched on again. a second falling edge at nvta will stop discharging the capacitor if v (va) >21v.
ic-jj power management ic rev a1, page 15/17 watchdog if the watchdog is not activated within the stipulated period (500s..800ms), a reset is triggered via nres. the watchdog c ounter restarts with each falling edge at twd. reset pulses from the microcontroller or v(vcc) or v(vref) not included in the specifications also reset the watchdog counter. nrhd and hd activate external hardware in conjunction with the watchdog. nrdh: cmos input with a pull-up resistor to activate output hd . hd: after 128 correct watchdog cycles and when pin nrhd = high, the open-drain transistor is activated (hd = low). via nrhd = low, a reset (nres) or false operation of the watchdog, the output is switched to tristate and can only become low again when 128 correct watchdog cycles have again occurred. reset if v(vcc) or v(vref) are not within specifications range or if the watchdog is operated incorrectly a reset is triggered via the open-drain output nres. the microcontroller can also trigger a reset externally, thus resetting the watchdog and switching the indicator lamp on via nfl. vfp regulator the vfp regulator provides the microcontroller with 12v programming supply voltage. when tfp= high, output vfp is activated; otherwise this output is switched to tristate. standby via input ena a sleep mode can be set; current consumption is reduced to a minimum of 30a approximately. k-interface the k-interface uses two pins that can be connected with the serial interface of the microcontroller. txd is used to send data via the interface. if txd is switched from high to low then k switches from v (vm) to low. rxd switches to low if v(rxd) < v (vm)/2 (in autarky mode rxd < 3v). if txd is open then rxd will reflect the external voltage at k. temperature monitoring the k interface, indicator lamp output and naks output are shut off in the event of excessive temperature. the two driver outputs can be forcibly switched on with excessive temperature for a short period if they are the cause of this excessive temperature. if the level falls below that of the shutdown temperature (hysteresis) the drivers can be switched on again. oscillator the oscillator provides an internal frequency of ca. 125khz for the switching converters, watchdog counter and autarky control.
ic-jj power management ic rev a1, page 16/17 30ma low-side driver (ncrd) the low-side driver is switched on by the microcontroller via tcrd = high. a comparator at output pcrd signals the state of the digital crash output to the microcontroller. tcrd pcrd state of the driver output ncrd low low output off low high short circuit to ground or broken wire high low short circuit to kl15, kl15r high high output on 50ma high-side driver (cra) the high-side driver is switched on by the microcontroller via tcra = high. a comparator at output pcra signals the state of the analog crash output to the microcontroller. tcra pcra state of the driver output cra low low output off low high short circuit vs. vbat or broken wire high low short circuit to ground high high output on 200ma low-side driver (nfl) the low-side driver which is switched on by the microcontroller via tfl = high. it is also switched on by a flip-flop which mirrors the reset state. this flip-flop can be reset via a falling edge at tfl after the reset has ended. a comparator at output pfl signals the state of the indicator lamp output to the microcontroller. the driver is normally on when no supply voltage is available at the ic. tfl pfl state of the driver output low low output off, lamp off low high short circuit to ground or broken wire high low short circuit to kl15, kl15r high high output on, lamp on
ic-jj power management ic rev a1, page 17/17 this specification is for a newly developed product. ic-haus therefore reserves the right to modify data without further notice . please contact us to ascertain the current data. the data specified is intended solely for the purpose of product description and is not to be deemed guaranteed in a legal sense. any claims for damage against us - regardless of the legal basis - are excluded unless we are guil ty of premeditation or gross negligence. we do not assume any guarantee that the specified circuits or procedures are free of copyrights of third parties. copying - even as an excerpt - is only permitted with the approval of the publisher and precise reference to source. 30ma low-side driver (naks) the naks output is a low-side driver which is switched on by the microcontroller via taks= high. a comparator at output paks signals the state of the naks output to the microcontroller. taks paks state of naks output low low output off, lamp off low high short circuit to ground or broken wire high low short circuit vs. vbat high high output on ordering information type package order designation ic-jj mqfp44 ic-jj mqfp44 for information about prices, terms of delivery, options for other case types ec., please contact: ic-haus gmbh tel. +49-6135-9292-0 am kuemmerling 18 fax +49-6135-9292-192 d-55294 bodenheim http://www.ichaus.com germany

▲Up To Search▲

Price & Availability of IC-JJMQFP44

	To Download IC-JJMQFP44 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .