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march 1998 edition 1.0 da t a sheet copyright ? 1998 by fujitsu limited 1 description this power supply ic incorporates a 4 - channel series regulator and a battery backup function. it is a multi - function power supply ic with an output control function and momentary power - loss detection circuit, which are both required for mobile telephones. it also incorporates a speaker amplifier and a buzzer driver . since it has a built - in power system suitable for mobile telephones, it promises equipment downsizing. fea tures power consumption during standby : 0.22 mw (typ.) 4 - channel low - saturation voltage type : 6 w typ. for channels 1 - 3 series regulator 20 w typ. for channel 4 battery backup function momentary power - loss and power - restoration functions on/off switch circuit with an operating error prevention function btl amplifier for driving the speaker : output power= 90 mw typ. buzzer driver to permit changing the sound volume : 200 ma max. power supply voltage drops are accurately detected. hysteresis is provided for detection voltage. w atchdog timer stop function is provided (inhibit pin). w atchdog monitoring time and reset time are set independently . mb3829 system power supply ic for mobile t elephone 48-pin plastic lqfp (fpt -48p-m05) this device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. however , it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit.
mb3829 2 pin assignment (t op view) (fpt - 48p - m05) out1 : 1 nc : 2 out4 : 3 ss : 4 vcc1 : 5 out2 : 6 ctl2 : 7 out3 : 8 ctl3 : 9 ba tt1 : 10 gnd2 :1 1 gnd1 :12 36 : in 35 : bp 34 : fb 33 : gnd4 32 : gnd3 31 : outb 30 : out a 29 : vcc4 28 : clk 27 : in1 26 : in2 25 : in3 clr : 13 ct2 : 14 ct3 :15 t out : 16 vref : 17 vcc3 : 18 vcc5 : 19 vo3 : 20 vo2 : 21 vo1 : 22 gnd5 : 23 gnd6 : 24 48 : vcc2 47 : off 46 : on2 45: on1 44: ct1 43: ctp 42: ctw 41: reset 40: ck 39: inh 38: choice 37: sb v oltage monitoring section power controller section speaker amp section sunder section
mb3829 3 pin description description pin no. pin symbol power supply control section sounder section out1 nc out4 ss vcc1 out2 ctl2 out3 ctl3 ba tt1 gnd2 gnd1 clr ct2 ct3 t out vref vcc3 vcc5 vo3 vo2 vo1 gnd5 gnd6 in3 reg1 output pin (3.0 v) unconnected pin (open) reg4 output pin (3.0 v) vref slow - start capacitance connection pin power supply pin for power supply control section reg2 output pin (3.0 v) reg2 control pin in reg1 operating h level: reg2 operation; l level: reg2 off reg3 output pin (3.0 v) reg3 control pin in reg1 operating h level: reg3 operation; l level: reg3 off 1 2 3 4 5 6 7 8 9 10 1 1 12 13 14 15 16 17 18 19 20 21 22 23 24 25 i/o o - o - - o i o i - - - i - - o o - - o o o - - i backup battery connection pin ground pin ground pin power supply pin for sounder section output 3 pin (open collector) output 2 pin (open collector) output 1 pin (open collector) ground pin ground pin reset pin for momentary power - loss detection and power - restoration section pin for connecting momentary power - loss evaluation time setup capacitor pin for connecting momentary power - loss evaluation time setup capacitor and resistor pin for momentary power - loss detection and output (open drain) pin for reference voltage output power supply pin for momentary power - loss detection and power - restoration section control input 3 pin (h level: v o 3 operation) (continue)
mb3829 4 (continued) description pin no. pin symbol sounder section speaker amplifier section v oltage monitoring section power supply control section in2 in1 clk vcc4 out a outb gnd3 gnd4 fb bp in sb choice inh ck reset ctw ctp ct1 on1 on2 off vcc2 control input 2 pin (h level: v o2 operation) control input 1 pin (h level: v o1 operation) clock input pin power supply pin for speaker amplifier section output a pin output b pin ground pin ground pin inverted input pin bypass pin non - inverted input pin control input pin (h level: speaker amplifier operation) earphone selection control pin inhibit pin clock input pin reset output pin pin for watchdog timer monitoring time setup pin for power - on reset hold time setup pin for connecting on time setup capacitor on1 pin on2 pin off pin power supply pin for on/off switch section 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 i/o i i i - o o - - i - i i - i i o - - - i i i -
mb3829 5 block diagram + - refernce v oltage bias generator control - + on/off switch reg1 reg2 reg3 reg4 backup section momentary power - loss detection and power - restoration section sound driv- er w atchdog timer 48 44 45 46 47 4 17 37 35 36 34 30 32 33 38 43 41 39 42 40 27 26 25 28 19 23 24 5 3 10 18 16 13 15 14 22 21 20 12 1 1 1 7 6 9 8 29 31 vcc2 ct1 on1 on2 off ss vref (1.26v) sb bp in vcc4 fb gnd3 gnd4 out a outb choice ctp reset inh ctw ck in1 in2 in3 clk vcc5 gnd5 gnd6 vcc1 out4 (3.0v) ba tti (3.18v) vcc3 t out clr ct3 ct2 vo1 vo2 vo3 gnd1 gnd2 out1 (3.0v) ctl2 out2 (3.0v) ctl3 out3 (3.0v) 1k speaker amp. - + - + - + - + - + mb3793 - 27a q s r + - - +
mb3829 6 function descriptions 1. power supply control section (1) reference voltage circuit the reference voltage circuit generates a temperature - compensated, stable voltage ( ? 1.26 v). the generated reference voltage is used as the power supply control section reference voltage or bias. (2) series regulator section a 4 - channel series regulator incorporating a low - saturation output transistor is used. all four channels provide an output voltage of 3.0 v . their characteristics are described below . reg1 is suitable for a microcontroller power supply because it is connected to a power - on reset circuit. it is controlled by the on/off switch section. on/off control of reg2 and reg3 is exercised independently by the ctl2 and ctl3 pins while reg1 is on. reg4 operates at all times and is therefore suitable for data backup. regs 1 through 4 incorporate an overcurrent - protection circuit (reg1 to reg3 ? - 100 ma, reg4 ? - 25 ma). (3) battery backup section when the main battery is installed, the series regulator recharges a button - type lithium secondary battery , which is often used to provide backup for clocks and memory . when the main battery is not installed, the backup battery supplies power to clocks and the battery via a built - in diode. since the recharging series regulator is set at 3.18 v , this battery backup section is suitable for manganese and lithium batteries. (4) on/off switch section when a time - setup capacitance and resistance are connected to the ct1 pin, the on1 pin makes it possible to set the power supply button activation time. this feature prevents turning on a mobile telephone accidentally . the on2 and off pins provide a method of exercising direct on/off control of the regulator . on time setting calculation formula: t o n ? - c t 1 x r t 1 x ln (1 - 1.26v/v c c 2 ) (5) momentary power - loss function and power - restoration section when a time - setup capacitance and resistance are connected to the ct3 pin, a momentary vcc loss, which may be caused by battery replacement, etc., will be detected so as to deliver output to the t out pin. at power restoration, the operating state before the momentary power loss is recovered. after a momentary power loss, the clr pin resets the prevailing state so that the momentary power - loss detection circuit retains the latch circuit state. momentary power - loss detection time calculation formula: t o f f ? - c t 3 x r t 3 x ln (1 - (2.3v - 0.27v)/2.3v)
mb3829 7 (6) on/off setup conditions for individual channels on/off switching section l h on2 off off (standby mode) off on off on on l h l h ctl2 h l l l h h ctl3 reg1 reg2 off off on on reg3 on reg4 on battery backup 2. speaker amplifier section a btl - output type amplifier is used to drive the speaker directly . the typical output power is as high as 90 mw (at 32 w ), and the sb pin provides on/off control. the choice pin controls earphone selection. 3. sounder section this section incorporates three low - saturation output transistors for driving the buzzer . in1, in2, and in3 are used to select the output transistor . 4. v oltage monitoring section this section incorporates the reg1 output voltage detection function and watchdog timer function. it outputs a reset signal to the reset pin. further , the detection time varies with the capacitance connected to the ctp and ctw pins.
mb3829 8 absolute maximum ra tings parameter symbol condition 10 860* - 50 to +125 - 60 - 12 150 240 120 60 - 10 to 10 power-supply voltage power dissipation storage temperature output current output current output current reset output current v c c p d t stg i o 1 to i o 3 i o 4 i o i o 1 i o 2 i o 3 i o l , i o h ? t a +25 c ? ? duty = 50% duty = 50% duty = 50% dc v mw c ma ma ma ma ma ma ma v alue unit common to all sections power supply control section speaker amplifier section sounder section v oltage monitoring section *: v alue as mounted on double-sided epoxy board 10 10 cm note: permanent device damage may occur if the above absolute maximum ratings are exceeded. functional operation should be restricted to the conditions as detailed in the operational sections of this data sheet. exposure to absolute maximum rating conditions for extended periods may af fect device reliability . recommended opera ting conditions(1) parameter symbol condition power supply voltage power supply voltage buildup time operation temperrature v c c tv c c t a ? ? ? v m s/v c unit 3.49 50 - 30 8.0 ? 85 ? ? 25 v alue min. max. t yp. common to all sec- tions
mb3829 9 recommended opera ting conditions(2) parameter symbol condition control input voltage output current backup current clr input pulse width off input pulse width on2 input pulse width on setting time setup v i i o 1 to i o 3 i o 4 i b a t t 1 t c l r t o f f t o n 2 c t 1 r t 1 c t 3 r t 3 v i v i n r l a v v i i o 1 i o 2 i o 3 i o l , i o h c t p c t w t w d ? ? ? ? ? ct3 = 2.2 m f , r t3 = 1m w ? ? ? ? ? ? ? ? when non - inv input when inv input ? duty = 50% duty = 50% duty = 50% ? ? ? ? v ma ma m a ns ms m s m f m w m f m w v v w db db v ma ma ma ma m f m f ms unit 0 - 50 - 10 ? 200 10 10 ? ? ? ? 0 0.3 8 6 - 26 0 ? ? ? - 3 0.001 0.001 0.1 v c c ? ? 200 ? ? ? ? ? ? ? v c c v c c - 0.8 200 36 36 v c c 200 100 50 3 10 1 1500 ? ? ? ? ? ? ? 1.5 1 2.2 1 ? ? 32 24 - 20 ? ? ? ? ? ? ? ? v alue min. max. t yp. power supply control section momentary power - loss time setup capacitance resistance capacitance resistance speaker amplifier section control input voltage amplifier input voltage load resistance gain setting range sounder section control input voltage output current v oltage monitoring section reset output current reset/hold time setup capacitance clock monitoring time setup capacitance clock monitoring time setting note: the recommended operating conditions are the recommended values guaranteeing normal lsi operations. the specified values for electrical characteristics are guaranteed when the conditions in the ?condition? column, as well as the recommended operating conditions, are met.
mb3829 10 electrical characteristics 1. power supply control section (v c c 1 , 2 , 3 = +3.6v , t a = +25 c) v i n =0.2v rms, i o = - 10ma v i n =0.2v rms, i o = - 10ma parameter symbol condition reference voltage output voltage output saturation voltage v r e f v o v o v s a t d v o /v o line load r.r t r i o =0ma i o =0ma i o = - 50ma i o = - 22ma, v c c =3v t a = - 30 to +85 c v c c =3.49v to 8v ,i o = - 10ma i o =0ma to - 50ma v v v v % mv mv db db m s unit 1.23 2.90 2.90 ? ? ? ? 38 23 ? 1.29 3.13 3.13 0.27 2 50 50 ? ? 410 1.26 3.00 3.00 0.15 1 10 10 50 35 250 v alue min. max. t yp. reference voltage section constant v oltage controller (reg1) t emperature regulation of output voltage input stability load stability ripple removal ratio rise time c=10 m f , r=60 w * f=25hz f=1khz * * * output voltage output saturation voltage v o v o v s a t d v o /v o line load r.r v o n v o f f i i h i i l t r i o =0ma i o = - 50ma i o = - 40ma, v c c =3v t a = - 30 to +85 c v c c =3.49v to 8v ,i o = - 10ma i o =0ma to - 50ma v v v % mv mv db db v v m a m a m s 2.90 2.90 ? ? ? ? 38 23 2.0 0 ? 1 ? 3.13 3.13 0.45 2 50 50 ? ? v c c 0.8 30 3 410 3.00 3.00 0.25 1 10 10 50 35 ? ? 17 2 250 constant v oltage controller (reg2,3) t emperature regulation of output voltage input stability load stability ripple removal ratio rise time c=10 m f , r=60 w * f=25hz f=1khz * * * - - input - on condition input - of f condition input current v i =3.0v v i =0.4v *: guaranteed by design
mb3829 1 1 (v c c 1 , 2 , 3 = +3.6v , t a = +25 c) v c c 1 =0 to 2.97v , v b a t t 1 =3v , v o 4 : short - circuited to v b a t t 1 v i n =0.2v rms, i o = - 2ma parameter symbol condition unit v alue min. max. t yp. output voltage output saturation voltage v o v o v s a t d v o /v o line load r.r i l e a k t r i o =0ma i o = - 10ma i o = - 2ma, v c c =3v t a = - 30 to +85 c v c c =3.49v to 8v i o =0ma to - 10ma v v % mv mv db db v m a m s 2.90 2.90 ? ? ? ? 38 4 ? ? 3.13 3.13 0.1 2 50 50 ? ? 10 1450 3.00 3.00 0.05 1 10 10 50 16 1.2 900 constant v oltage controller (reg4) t emperature regulation of output voltage input stability load stability ripple removal ratio rise time c=10 m f , r=300 w , ss=1nf * f=25hz f=1khz * * * output leakage current v c c 1 =0 to 2.97v , v b a t t 1 =0v , v o 4 =3v output voltage charging current output saturation voltage v b a t t 1 i b a t t 1 d v o i l e a k i b a t t 1 =0 m a v b a t t 1 =2.0v v c c 1 =0v , i o 4 = - 20 m a v ma v m a 3.10 ? 0.52 ? 3.25 - 0.59 0.62 10 3.18 - 1.18 0.57 2.1 output leakage current backup section v o n v o f f i i h i i l v t h r o n t o n v v m a m a v k w ms 2.0 0 ? 1 1.21 0.5 550 v c c 0.8 30 3 1.31 1.5 750 ? ? 17 2 1.26 1 650 on setup time ct1=1.5 m f , r t1=1m w * - - input - on condition input - of f condition input current v i =3.0v v i =0.4v threshold voltage ct3 output resistance ct1 pin off=h on/off switch section *: guaranteed by design
mb3829 12 (v c c 1 , 2 , 3 = +3.6v , t a = +25 c) instantaneous detection/ power restoration section reg1 to reg3 : off i o 4 = - 100 m a i b a t t 1 = - 200 m a parameter symbol condition unit v alue min. max. t yp. detection voltage instantaneous detection time input - on condition input - of f condition input current v t h l t o f f v o n v o f f i i h i i l i l e a k v s a t v c c pin ct3=2.2 m f , r t3=1m w clr pin clr pin v i =3.0v v i =0.4v v c c 1 , 2 , 3 = v o =8v i o =100 m a v s v v m a m a m a v 1.90 4.0 2.0 0 ? 1 ? ? 2.5 5.5 v c c 0.8 30 3 10 0.3 2.2 4.7 ? ? 17 2 ? 0.1 i c c 1 m a ? 90 60 stand - bycurrent output leakage current output saturation voltage power supply control section reg2,3 : off i o 1 = - 1 1ma, i o 4 = - 100 m a i b a t t 1 = - 200 m a i c c 2 m a ? 240 160 power - of f current reg3 : off i o 1 = - 1 1ma, i o 2 = - 30 m a i o 4 = - 100 m a i b a t t 1 = - 200 m a i c c 3 m a ? 280 190 power - oncurrent i o 1 = - 1 1ma, i o 2 = - 40ma i o 3 = - 12ma, i o 4 = - 100 m a i b a t t 1 = - 200 m a i c c 4 m a ? 530 360 i o 1 to i o 4 , i b a t t 1 : no load i c c 5 m a ? 240 160 power - oncurrent power - oncurrent note: the icc1 to icc5 values for the whole power supply control section represent the sum of vcc1 to vcc3 pin current values except the load current.
mb3829 13 2. speaker amplifier section (v c c 1 , 2 , 3 = +3.6v , t a = +25 c) power - supply current at no load (earphone mode) parameter symbol condition unit v alue min. max. t yp. a v a v o p d v o v o o thd psrr t r a v i v o i t r r i n v o n v o f f i i h i i l i c c 1 i c c 2 i c c 3 vson veon db db mw v mv % db s db v s k w v v m a m a m a ma ma v v 22 ? 60 3.8 - 50 ? 33 ? 16 1.4 ? 20 2.0 0 ? ? ? ? ? 0 2.0 26 ? ? ? 50 1.0 ? 0.25 20 ? 0.25 50 v c c 0.8 30 1 10 5 2.5 0.8 v c c 24 80 90 5.5 ? 0.5 45 ? 18 2.75 ? 30 ? ? 17 0 0 3 1.5 ? ? speaker amplifier section v oltage gain release voltage gain output power output voltage of fset voltage between output distortion rate of all high frequencies ripple extraction ratio rise time non - inv input f 100 hz r l = 32 w , thd = 10 % no load - p o 3 25 mw - p o 3 25 mw , bp=4.7 m f * * * earphone v oltage gain output voltage rise time - no load p o 3 6 mw , bp=4.7 m f * input impedance input - on condition input - off condition input current power - supply current at standby power - supply current at no load (speaker mode) speaker on condition earphone on condition * - - - v s b =3.0v v s b =0.4v - when no signal when no signal - - *: guaranteed by design
mb3829 14 3. sounder (v c c 5 = +3.6v , t a = +25 c) parameter symbol condition v v v m a v v m a m a m a ma ma ma unit 0.5 0.5 0.5 10 v c c 0.8 60 6 10 4.5 2.3 1.2 0.3 0.3 0.3 ? ? ? 34 4 2 3.0 1.5 0.8 v alue min. max. t yp. output voltage output leakage current input - on condition input - off condition input current v o 1 v o 2 v o 3 i l e a k v o n v o f f i i h i i l i c c 1 i c c 2 i c c 3 i c c 4 i o 1 = 200 ma i o 2 = 100 ma i o 3 = 50 ma v c c 1 , 2 , 3 =v o = 8 v - - v i = 3.3 v v i = 0.4 v - power - supply current at standby power - supply current at no load v i n 1 = 3.0 v , clk duty = 50% v i n 2 = 3.0 v , clk duty = 50% v i n 3 = 3.0 v , clk duty = 50% ? ? ? ? 2.0 0 ? 2 ? ? ? ?
mb3829 15 4. v oltage monitoring section (out1 = +3.0v , t a = +25 c) parameter symbol condition v v mv v v v v v m a m a v v v ms ms ms ns m s ns ns m s m s unit 2.81 2.87 95 1.8 1.4 0.6 ? 0.8 1.0 ? ? 0.4 1.2 1 15 24 8.5 ? ? 500 500 20 ? 2.75 2.81 65 1.2 0.9 0.3 ? ? 0 0 2.8 0.12 0.8 70 16 5 ? ? ? ? 2 ? v alue min. max. t yp. v s l v s h v s h y s v c i h v c i l v c h y s v i i h v i i l i i n h i i n l v o h v o l v c c l t p r t w d t w r t c k w t c k t t r *1 t r *1 t p d t p i - - 2.70 2.76 35 0.6 0.4 0.1 1.8 ? ? - 1.0 2.5 ? ? 25 8 1.5 500 20 2.0 ? ? 16 detection voltage out1 fall out1 rise v s h - v s l - - - v i n = out1 v i n = gnd i r e s e t = - 3ma i r e s e t = +3ma i r e s e t = +50 m a c t p = 0.1 m f c t w =0.01 m f , c t p =0.1 m f c t p = 0.1 m f - - c l = 50pf c l = 50pf - 1.2v to 2.5v * * * * * * detection voltage hysteresis width ck input threshold voltage ck input hysteresis width inhibit input voltage input current ck ihb reset output voltage reset output minimum voltage power - on reset hold time w atchdog timer monitoring time w atchdog timer reset time clock input pulse width clock input pulse cycle reset rise time reset fall time delay time from out1 out1 input pulse width *1: the voltage range prevailing during reset output rise/fall time measurement is from 10% to 90% *: guaranteed by design
mb3829 16 typical characteristics cur ve 1000 800 600 400 200 0 - 40 - 20 0 20 40 60 80 100 lqfp allowable dissipation vs. ambient temperature curve allowable dissipation p d [mw] ambient temperature t a [ c]
mb3829 17 vol t age monit oring section timing chart out1 v s h v s l ck inh ctp ctw reset v h v l t c k w (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (1 1) (12) (13) (14) v c c l t p r t p r t w d t w r
mb3829 18 description of opera tion (the numbers in the timing diagram correlate to the numbers (1) to (13) below .) (1) when the reg1 output voltage (out1) is about 0.8 v (v c c l ), the reset signal is output. (2) when out1 reaches a level higher than the detection voltage (v s h ), the power - on reset/hold time setup ca- pacitor (c t p ) begins to charge. the v s h value is 2.81 v . (3) when the power - on reset/hold time setup pin (c t p ) voltage rises above the threshold level (vth), the reset clears (reset pin voltage changes from l level to h level). the vth value is about 1.9 v . the power - on reset/hold time (t p r ) is expressed by the following equation. also, the watchdog timer monitoring time setup capacitor (c t w ) begins to charge. t p r [ms] ? a x c t p [ m f] a ? 700 (4) when the watchdog timer monitoring time setup pin (c t w ) voltage reaches the hi level (v h ), the c t w changes from the charged state to the discharged state. the v h value is about the reference voltage of 1.24 v . (5) when a clock pulse input is applied to the clock pin (ck) and then the next clock pulse input is applied (positive edge trigger) to the ck pin during a c t w discharge, switching from the discharged state to the charged state occurs. (6) if a clock pulse input is not delivered to the clock pin (ck) within the watchdog timer monitoring time (twd), the ctw pin voltage falls below the lo level (v l ) so the reset signal is output ( reset pin voltage changes from h level to the l level). the v l value is about 0.24 v . the watchdog timer monitoring time (t w d ) is expressed by the following equation. t w d [ms] ? b x c t w [ m f] b ? 1600 (7) when the c t p is recharged to raise the c t p pin voltage above vth, the reset clears, allowing the watchdog timer to start running. the watchdog timer monitoring reset time (t w r ) is expressed by the following equation. t w r [ms] ? d x c t p [ m f] b ? 50 (8) when the out1 drops below the fall period detection voltage (v s l ), the c t p pin voltage falls so that the reset signal is output ( reset pin voltage changes from h level to the l level). the v s l value is about 2.75 v . (9) when the out1 rises above v s h , c t p charging starts. (10) when the c t p pin voltage rises above vth, the reset clears, causing the watchdog timer to start running. (1 1) when the inhibit signal is input (hi level), the watchdog timer operation is forcibly stopped. in this case, only the watchdog timer stops and the out1 monitoring operations ((8) to (10)) are performed. if the inhibit input does not clear , the watchdog timer does not operate. (12) when the inhibit input clears (becomes lo level), the watchdog timer begins to operate. (13) when the reg1 output turns off and out1 falls below v s l , the reset signal is output.
mb3829 19 reg section rise timing requirements vcc on2 ctl2 ctl3 reg1 reg2 reg3 reg4 t r 90% t r 90% t r 90% t r 90% speaker amplifier section rise timing requirements t r speaker output = 25mw vcc4=vsb choice=?l? (bp=4.7 m f) speaker output vcc4=vsb =choice (bp=4.7 m f) t r earphone output = 6mw earphone output 0v
mb3829 20 applica tion circuit control signal 48 44 45 46 47 4 17 37 35 36 34 30 32 33 38 43 41 39 42 40 27 26 25 28 19 23 24 5 3 10 18 16 13 15 14 22 21 20 12 1 1 1 7 6 9 8 29 31 vcc2 ct1 on1 on2 off ss vref (1.26v) sb bp in vcc4 fb gnd3 gnd4 out a outb choice ctp reset inh ctw ck in1 in2 in3 clk vcc5 gnd5 gnd6 vcc1 out4 ba tti (3.18v) vcc3 t out clr ct3 ct2 vo1 vo2 vo3 gnd1 gnd2 out1 ctl2 out2 ctl3 out3 vcc2 (3.6v) 3.6v 1m w 1.5 m f 10 m f 0.1m f 3.6v 1 m f 2.2k w 15k w control signal power - on reset signal (to microcontroller) control signal from microcontroller 3.6v vcc5 10 w 50 w 150 w 15 m f 1kw buzzer 20pf 3.6v 1m w 2.2m f 100k w momentary power - loss detection signal (to microcontroller) backup battery 3.6v microcontroller t ransmitter receiver memory v oltage control section speaker amplifier section v oltage monitoring section sounder section mb3829 out1 (3.0v) from microcontroller control signal control signal control signal control signal
mb3829 21 usage precautions 1. device settings must not exceed the maximum ratings. usage under conditions exceeding absolute maximum ratings may permanently damage lsi devices. note also that in normal operation usage within recommended operating conditions is preferred, and that the reliability of lsi devices may be adversely af fected when used outside these conditions. 2. devices should be used within recommended operating conditions. recommended operating conditions are recommended values within which the lsi device is warranted to operate normally . rated values of electrical characteristics are warranted within the range of recommended operating conditions and within the conditions listed in the condition column for each parameter . 3. the pc board ground line must be designed by taking the common impedance. 4. guard against static electricity . the semiconductor containers must be protected against static electricity or made of conductive materials. when storing or transporting a component - mounted pc board, place it in a conductive bag or container . ensure that the workbenches, tools, and measuring instruments are grounded. w orkers must be grounded via a series resistance of 250 k w to 1 m w . ordering informa tion part number package remarks mb3829pfv - g - bnd plastic, lqfp , 48 - pin (fpt - 48p - m05)
mb3829 22 p ackage dimensions .020 .008 (0.50 0.20) .004 .004 (0.10 0.10) .004(0.10) .0197 .0031 (0.50 0.08) lead no. dimensions in inches (millimeters) 25 24 13 12 1 48 37 36 48-lead plastic fla t p ackage (case no.: fpt -48p-m05) ? 1991 fujitsu limited f48013s-2c .217(5.50) ref details of ?a? part .276 .004 (7.00 0.10) sq index .354 .008 (9.00 0.20) sq .007 +.003 - .001 (0.18 ) +0.08 - 0.03 .059 +.008 - .004 (1.50 ) +0.20 - 0.10 .005 +.002 - .001 (0.127 ) +0.05 - 0.02 .315(8.00) nom ?a? (mounting height) 0 to10 (st and off height)
mb3829 23 memo all rights reserved. circuit diagrams utilizing fujitsu products are included as a means of illustrating typical semiconductor applications. complete information suf ficient for construc- tion purposes is not necessarily given. the information contained in this document has been carefully checked and is believed to be reliable. however , fujitsu assumes no responsibility for inaccura- cies. the information contained in this document does not convey any license under the copyrights, patent rights or trademarks claimed and owned by fujitsu. fujitsu reserves the right to change products or specifications without notice. no part of this publication may be copied or reproduced in any form or by any means, or transferred to any third party without prior written consent of fujitsu.
mb3829 24 for further information please contact: japan fujitsu limited corparate grobal business support div ., electronic devices 4 - 1 - 1 kamikodanaka, nakahara - ku, kawasaki - shi, kanagawa - ken 21 1 - 8588, japan t el: (044) 754 - 3763 f ax: (044) 754 - 3329 north and south america fujitsu microelectronics, inc. integrated circuits division 3545 north first street san jose, ca 95134-1804, usa t el: (408) 922 - 9000 f ax:(408) 922 - 9179 europe fujitsu mikroelektronik gmbh am siebenstein 6-10, 63303 dreieich-buchschlag, germany t el: (06103) 690-0 f ax: (06103) 690-122 asia fujitsu microelectronics asia pte limited #05 - 08, 151 lorong chuan new t ech park singapore 556741 t el: (65) 281 - 0770 f ax: (65) 281 - 0220 ? fujitsu limited 1998

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