View MAX9929F_4631142.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

general description the max9928/max9929 low-cost, uni-/bidirectional, high-side, current-sense amplifiers are ideal for moni- toring battery charge and discharge currents in note- books, cell phones, and other portable equipment. these devices feature a wide -0.1v to +28v input com- mon-mode voltage range, low 20? supply current with v os less than 0.4mv, and a gain accuracy better than 1.0%. the input common-mode range is independent of the supply voltage, ensuring that the current-sense information remains accurate even when the measure- ment rail is shorted to ground. the max9928f features a current output with a transcon- ductance ratio of 5?/mv. an external resistor converts the output current to a voltage, allowing adjustable gain so that the input sense voltage can be matched to the maximum adc input swing. the MAX9929F has a voltage output and integrates a 10k ? output resistor for a fixed voltage gain of 50v/v. a digital sign output indicates direction of current flow, so the user can utilize the full adc input range for mea- suring both charging and discharging currents. the max9928/max9929 are fully specified over the -40? to +125? automotive temperature range, and available in 6-bump ucsp (1mm x 1.5mm) and 8-pin ?ax packages. the ucsp package is bump-to-bump com- patible with the max4372_ebt. features wide -0.1v to +28v common-mode range, independent of supply voltage 2.5v to 5.5v operating supply voltage 20? quiescent supply current 0.4mv (max) input offset voltage gain accuracy better than 1% (max) sign output indicates current polarity transconductance and gain versions available 5?/mv (max9928f) 50v/v (MAX9929F) pin compatible with the max4372 in ucsp available in ultra-small, 3x2 ucsp (1mm x 1.5mm) and 8-pin max packages applications monitoring charge/discharge currents in portable/battery-powered systems notebook computers general-system/board-level current monitoring smart-battery packs/chargers precision current sources smart cell phones super capacitor charge/discharge max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers ________________________________________________________________ maxim integrated products 1 ordering information 19-4251; rev 3; 4/12 for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. evaluation kit available note: all devices are specified over the -40? to +125? operating temperature range. + denotes a lead-free/rohs-compliant package. t = tape and reel. part output type gain pin-package top mark max9928 faua+ current g m = 5?/mv 8 ?ax max9928fabt+t current g m = 5?/mv 3x2 ucsp +aaf max9929 faua+ voltage a v = 50v/v 8 ?ax MAX9929Fabt+t voltage a v = 50v/v 3x2 ucsp +adi pin configurations and typical operating circuit appear at end of data sheet. ucsp is a trademark and ?ax is a registered trademark of maxim integrated products, inc.
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers 2 _______________________________________________________________________________________ absolute maximum ratings electrical characteristics (v rs+ = -0.1v to +28v, v cc = 3.3v, v sense = (v rs+ - v rs- ) = 0v, r out = 10k for max9928f, t a = -40? to +125?, unless other- wise noted. typical values are at t a = +25?.) (note 1) stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. v cc , sign to gnd ...................................................-0.3v to +6v rs+, rs- to gnd....................................................-0.3v to +30v out to gnd ...............................................-0.3v to (v cc + 0.3v) differential input voltage (v rs+ - v rs- ) .............................. ?0v out, sign short circuit to v cc or gnd ...................continuous current into any pin..........................................................?0ma continuous power dissipation (t a = +70?) 6-bump 1mm x 1.5mm ucsp (derate 3.9mw/? above +70?) ............................308.3mw 8-pin ?ax (derate 4.8mw/? above +70?) .............388mw operating temperature range ........................-40? to +125? storage temperature range ............................-65? to +150? junction temperature .....................................................+150? lead temperature (soldering, 10s) .................................+300? soldering temperature (reflow) .......................................+260? parameter symbol conditions min typ max units amplifier dc electrical characteristics t a = +25 c ?.1 ?.4 v rs+ = 3.6v t a = -40 c to +125 c ?.8 t a = +25 c ?.6 ?.0 input offset voltage (note 2) v os v rs+ = -0.1v t a = -40 c to +125 c ?.0 mv common-mode input range v cmr (note 3) -0.1 +28 v t a = +25 c 93 104 2v v rs+ 28v t a = -40 c to +125 c87 t a = +25 c6072 common-mode rejection ratio cmrr -0.1v v rs+ +2v t a = -40 c to +125 c54 db full-scale sense voltage (note 2) v sense max992_f ?0 mv gain (note 2) a v MAX9929F 50 v/v t a = +25 c ?.3 ?.0 MAX9929F, v rs+ = 3.6v t a = -40 c to +125 c ?.5 t a = +25 c ?.3 ?.0 gain accuracy (notes 2, 6) MAX9929F, v rs+ = -0.1v t a = -40 c to +125 c ?.8 % transconductance (note 2) g m max9928f 5 a/mv t a = +25 c ?.3 ?.0 max9928f, v rs+ = 3.6v t a = -40 c to +125 c ?.5 t a = +25 c ?.3 ?.0 transconductance accuracy (note 2) max9928f, v rs+ = -0.1v t a = -40 c to +125 c ?.8 % 2v v rs+ 28v 0 1.6 6 input bias current (note 4) i rs+ , i rs- -0.1v v rs+ +2v -80 +6 ? 2v v rs+ 28v ?.05 ? input offset bias current (note 4) i os -0.1v v rs+ +2v ?.2 2 ? input leakage current i rs+ , i rs- v cc = 0v, v rs+ = v rs- = 28v (note 5) 0.05 1.0 ?
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers _______________________________________________________________________________________ 3 electrical characteristics (continued) (v rs+ = -0.1v to +28v, v cc = 3.3v, v sense = (v rs+ - v rs- ) = 0v, r out = 10k for max9928f, t a = -40? to +125?, unless other- wise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units max9928f 5 m output resistance r out MAX9929F 6.4 10 13.6 k max9928f, r out = 10k (v cc - 0.1) (v cc - 0.45) output high voltage (note 6) v oh MAX9929F (v cc - 0.1) (v cc - 0.45) v t a = +25 c 0.25 2.0 minimum output voltage (note 7) v ol MAX9929F t a = -40 c to +125 c15 mv t a = +25 c 0.025 0.2 minimum output current (note 7) i ol max9928f t a = -40 c to +125 c 1.5 ? sign comparator dc electrical characteristics t a = +25? -1.6 -1.2 -0.5 v rs+ = 3.6v t a = -40? to +125? -2.15 -0.15 t a = +25? -2.5 -1.2 +0.25 discharge to charge trip point (note 8) v tdc v rs+ = -0.1v t a = -40 c to +125 c -4.6 +2.3 mv v rs+ = 3.6v t a = +25 c-1.8 charge to discharge trip point (note 8) v tcd v rs+ = -0.1v t a = +25 c-1.8 mv hysteresis width v hys v rs+ = 3.6v, -0.1v t a = +25 c0.6mv common-mode input range (note 9) v cmr -0.1 +28 v 2v v rs+ 28v 102 common-mode rejection ratio (note 9) cmrr -0.1v v rs+ +2v 74 db output low voltage v ol i sink = 100? 0.03 0.1 v output high voltage v oh (v cc - 0.01) (v cc - 0.04) v internal pullup resistor r pull-up 1m power supply t a = +25 c 2.5 5.5 supply voltage range (note 10) v cc t a = -40 c to +125 c 2.8 5.5 v v rs+ = 3.6v 72 90 amplifier power-supply rejection ratio (note 10) psrr a v rs+ = -0.1v 66 86 db v rs+ = 3.6v 90 comparator power-supply rejection ratio psrr c v rs+ = -0.1v 86 db 2v v rs+ 28v 20 30 quiescent supply current i cc -0.1v v rs+ < +2v 115 200 ?
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers 4 _______________________________________________________________________________________ electrical characteristics (continued) (v rs+ = -0.1v to +28v, v cc = 3.3v, v sense = (v rs+ - v rs- ) = 0v, r out = 10k for max9928f, t a = -40? to +125?, unless other- wise noted. typical values are at t a = +25?.) (note 1) parameter symbol conditions min typ max units ac electrical characteristics -3db bandwidth bw max992_f, v sense = 50mv 150 khz max992_f, v sense = 5mv to 50mv step 6 out settling to 1% of final value t set v rs+ = 3.6v, c load = 10pf, r out = 10k for max9928f max992_f, v sense = 50mv to 5mv step 15 ? overdrive = 1mv 80 sign comparator propagation delay (low to high) t prop_lh overdrive = 5mv 30 ? overdrive = 1mv 50 sign comparator propagation delay (high to low) t prop_hl overdrive = 5mv 13 ? power-up time to 1% of final value v sense = 50mv for max992_f, v rs+ = 3.6v, c load = 10pf 50 ? saturation recovery time 100mv v sense 50mv for max992_f, v rs+ = 3.6v, c load = 10pf 4ms note 1: all devices are 100% production tested at t a = +25?. all temperature limits are guaranteed by design. note 2: v os is extrapolated from two point transconductance and gain accuracy tests. measurements are made at v sense = +5mv and v sense = +50mv for max992_f. these measurements are also used to test the full-scale sense voltage, transconductance, and gain. these v os specifications are for the trimmed direction only (v rs+ > v rs- ). for current flowing in the opposite direction (v rs- > v rs+ ), v os is ?mv (max) at +25? and ?.8mv (max) over temperature, when v rs+ is at 3.6v. see the detailed description for more information. note 3: guaranteed by common-mode rejection ratio. extrapolated v os as described in note 2 is used to calculate common-mode rejection ratio. note 4: includes input bias current of sign comparator. note 5: leakage in to rs+ or rs- when v cc = 0v. includes input leakage current of sign comparator. this specification does not add to the bias current. note 6: output voltage should be 650mv below v cc to achieve full accuracy. note 7: i ol is the minimum output current in the v sense - i out transfer characteristics. v ol is the minimum output voltage in the v sense - v out transfer characteristic. note 8: v sense voltage required to switch comparator. note 9: discharge to charge trip point is functionally tested at v cm = -0.1v, +3.6v, and +28v. note 10: guaranteed by psrr test. extrapolated v os as described in note 2 is used to calculate the power-supply rejection ratio. v sense has to be such that the output voltage is 650mv below v cc to achieve full accuracy.
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers _______________________________________________________________________________________ 5 v os histogram max9928 toc01 v os (mv) frequency (%) 0.30 0.20 0.10 -0.20 -0.10 0 -0.30 5 10 15 20 25 30 35 40 45 0 -0.40 0.40 a v = 50v/v gain accuracy histogram max9928 toc02 gain accuracy (%) frequency (%) 0.8 0.6 0.4 -0.6 -0.4 0.2 -0.2 0 -0.8 5 10 15 20 25 30 0 -1.0 1.0 a v = 50v/v offset voltage vs. common-mode voltage max9928 toc03 common-mode voltage (v) offset voltage (mv) 3 2 0 1 -1.5 -1.0 -0.5 0 1.0 0.5 1.5 2.0 -2.0 -1 28 offset voltage vs. temperature max9928 toc04 temperature ( c) offset voltage (mv) 110 95 65 80 -10 5 20 35 50 -25 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 -1.0 -40 125 v cm = 3.6v supply current vs. supply voltage max9928 toc05 supply voltage (v) supply current ( a) 5.0 4.5 4.0 3.5 3.0 25 50 75 100 125 150 0 2.5 5.5 v rs+ = 0v v sense = 0v v rs+ = 3.6v supply current vs. common-mode voltage max9928 toc06 common-mode voltage (v) supply current ( a) 2.0 1.5 1.0 0.5 0 30 60 90 150 120 0 -0.5 28 v cc = 5.5v v cc = 2.5v supply current vs. temperature max9928 toc07 temperature ( c) supply current ( a) 75 50 25 0 -25 25 50 75 100 125 150 0 -50 125 100 v rs+ = 0v v sense = 0v v rs+ = 3.6v -80 -60 -70 -30 -40 -50 0 -10 -20 10 -2 2 4 06810 28 input bias current vs. common-mode voltage max9928 toc08 common-mode voltage (v) input bias current ( a) -0.1 typical operating characteristics (v cc = 3.3v, v rs+ = 12v, t a = +25?, unless otherwise noted.)
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers 6 _______________________________________________________________________________________ max9928f i out vs. v sense max9928 toc09 v sense (v) i out ( a) 0.4 0.3 0.2 0.1 500 1000 1500 2000 2500 0 00.5 t a = -40 c t a = +125 c v out = 0v t a = +25 c MAX9929F v out vs. v sense max9928 toc10 v sense (mv) v out (v) 120 100 80 60 40 20 1 2 3 4 5 6 0 0 140 v cc = 5.5v v cc = 3.3v v cc = 2.7v v cc = 2.5v MAX9929F v out vs. v sense max9928 toc11 v sense (mv) v out (v) 80 70 60 50 40 2.2 2.4 2.6 2.8 3.0 3.2 3.4 2.0 30 90 t a = -40 c t a = +125 c t a = +25 c gain accuracy vs. supply voltage max9928 toc12 supply voltage (v) gain accurancy (%) 5.0 4.5 4.0 3.5 3.0 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 -1.0 2.5 5.5 minimum output voltage vs. temperature max9928 toc13 temperature ( c) minimum output voltage (mv) 110 95 65 80 -10 5 20 35 50 -25 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 -40 125 gain accuracy vs. temperature max9928 toc14 temperature ( c) gain accuracy (%) 110 95 65 80 -10 5 20 35 50 -25 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 -1.0 -40 125 small-signal gain vs. frequency max9928 toc15 frequency (khz) gain (db) 100 10 1 0.1 23 26 29 32 35 20 0.01 1000 v cm = 3.6v max992_f cmrr vs. frequency max9928 toc16 frequency (hz) cmrr (db) 100k 10k 1k 100 30 60 90 120 0 10 1m typical operating characteristics (continued) (v cc = 3.3v, v rs+ = 12v, t a = +25?, unless otherwise noted.)
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers _______________________________________________________________________________________ 7 typical operating characteristics (continued) (v cc = 3.3v, v rs+ = 12v, t a = +25?, unless otherwise noted.) psrr vs. frequency max9928 toc17 frequency (hz) psrr (db) 10k 1k 100 10 1 -100 -80 -60 -40 -20 0 20 -120 0.1 100k MAX9929F large-signal transient response max9928 toc18 100 s/div v out v sense 1v/div 50mv/div v sign and v out vs. v sense max9928 toc19 v sense (mv) v out (mv) v sign (v) 2 1 -2 -1 0 50 100 150 0 1 2 3 4 0 -3 3 overdrive recovery max9928 toc20 400 s/div v sense 100mv/div v out 500mv/div comparator propagation delay (rs+ = 3.6v, 5mv overdrive) max9928 toc21 40 s/div v sense 2mv/div v out 1v/div power-up delay max9928 toc22 40 s/div v cc 1v/div v out 1v/div
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers 8 _______________________________________________________________________________________ detailed description the max9928f/MAX9929F micropower uni-/bidirectional, current-sense amplifiers feature -0.1v to +28v input common-mode range that is independent of the supply voltage. this wide input voltage range feature allows the monitoring of the current flow out of a power supply dur- ing short-circuit/fault conditions, and also enables high- side current sensing at voltages far in excess of the supply voltage (v cc ). the max9928f/MAX9929F oper- ate from a 2.5v to 5.5v single supply and draw a low 20? quiescent supply current. current flows through the sense resistor, generating a sense voltage v sense (figure 1). the comparator sens- es the direction of the sense voltage and configures the amplifier for either positive or negative sense voltages by controlling the s1 and s2 switches. for positive v sense voltage, the amplifier? inverting input is high impedance and equals v in - v sense. the amplifier? output drives the base of q1, forcing its non- inverting input terminal to (v in - v sense ); this causes a current to flow through r g1 equal to |v sense |/r g1 . transistor q2 and the current mirror amplify the current by a factor of m. for negative v sense voltage, the amplifier? noninvert- ing input is high impedance and the voltage on rs- ter- minal equals v in + v sense. the amplifier? output drives the base of q1 forcing its inverting input terminal to match the voltage at the noninverting input terminal; this causes a current to flow through r g2 equal to |v sense |/r g2 . again, transistor q2 and the current mir- ror amplify the current by a factor of m. +v sense vs. -v sense the amplifier is configured for either positive v sense or negative v sense by the sign comparator. the com- parator has a built-in offset skew of -1.2mv so that ran- dom offsets in the comparator do not affect the precision of i out (v out ) with positive v sense . the comparator has a small amount of hysteresis (typically 0.6mv) to prevent its output from oscillating at the crossover sense voltage. the ideal transfer characteris- tic of i out (v out ) and the output of the comparator (sign) is shown in figure 2. the amplifier v os is only trimmed for the positive v sense voltages (v rs+ > v rs- ). the sign comparator reconfig- ures the internal structure of the amplifier to work with negative v sense voltages (v rs- > v rs+ ) and the preci- sion v os trim is no longer effective and the resulting v os is slightly impacted. see details in the electrical characteristics note 2. the user can choose the direc- tion that needs the best precision to be the direction where v rs+ > v rs- . for example, when monitoring li+ battery currents, the discharge current should be v rs+ > v rs- to give the best accuracy over the largest dynamic range. when the battery charger is plugged in, the charge current flows in the opposite direction and is usually much larger, and a higher v os error can be tolerated. see the typical operating circuit . for applications with unidirectional currents (e.g., bat- tery discharge only), the sign output can be ignored. note that as v sense increases, the output current (i out for the max9928 or v out /10k for the max9929) also increases. this additional current is supplied from v cc . pin/bump description pin bump ?ax ucsp name function 1 b3 rs- negative current-sense input. load-side connection for the external sense resistor. 2 b2 sign sign output. indicates polarity of v sense . sign = h indicates v rs+ > v rs- sign = l indicates v rs+ < v rs- 3 b1 rs+ positive current-sense input. power-side connection to the external sense resistor. 4, 5 n.c. no connection. not internally connected. 6a1v cc supply voltage input. bypass to gnd with a 0.1? capacitor. 7 a2 gnd circuit ground 8 a3 out current-sense output. max9928: current output (i out is proportional to |v sense |). max9929: voltage output (v out is proportional to |v sense |).
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers _______________________________________________________________________________________ 9 for both positive and negative v sense voltages, the current flowing out of the current mirror is equal to: i out = m x |v sense |/r g1 for the max9928f, the transconductance of the device is trimmed so that i out /|v sense | = 5?/mv. for the MAX9929F, the voltage gain of the device is trimmed so that v out /|v sense | = 50v/v. the sign output from the comparator indicates the polarity of v sense . current output (max9928f) the output voltage equation for the max9928_ is given below: v out = (r sense x i load ) x (g m x r out ) where v out = the desired full-scale output voltage, i load = the full-scale current being sensed, r sense = the current-sense resistor, r out = the voltage-setting resistor, and g m = max9928f transconductance (5?/mv). the full-scale output voltage range can be set by changing the r out resistor value. the above equation can be modified to determine the r out required for a particular full-scale range: r out = (v out )/(i load x r sense x g m ) out is a high-impedance current source and can drive an unlimited amount of capacitance. current mirror max9928f MAX9929F c s2 s1 q1 q2 10k * sign out v cc v in -0.1v to +28v (v batt ) r sense v sense + - 2.5v to 5.5v r g1 80k r g2 80k r c2 80k r c1 80k rs- rs+ to load/charger to adc to c *internal 10k resistor for max9929_ only. gnd a v cc 1m figure 1. functional diagram 0 -1.2 -1.8 -3.0 3.0 2.0 1.0 0 -1.2 -1.8 -3.0 3.0 2.0 1.0 v sense (mv) v sense (mv) sign i out (v out ) ( ) for the MAX9929F. figure 2. ideal transfer characteristics with 0mv amplifier input offset voltage and -1mv comparator input offset voltage
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers 10 ______________________________________________________________________________________ voltage output (MAX9929F) the output voltage equation for the max9929_ is given below: v out = (r sense x i load ) x (a v ) where v out = the desired full-scale output voltage, i load = the full-scale current being sensed, r sense = the current-sense resistor, a v = MAX9929F voltage gain (50v/v). sign output the current/voltage at out indicates magnitude. the sign output indicates the current? direction. the sign comparator compares rs+ to rs-. the sign output is high when rs+ is greater than rs- indicating positive current flow. the sign output is low when rs- is greater than rs+ indicating negative current flow. in battery- operated systems, this is useful for determining whether the battery is charging or discharging. the sign output might not correctly indicate the direction of load current when v sense is between -1.8mv to -1.2mv (see figure 2). comparator hysteresis of 0.6mv pre- vents oscillation of sign output. if current direction is not needed, leave sign unconnected. applications information choosing r sense the max9928f/MAX9929F operate over a wide variety of current ranges with different sense resistors. adjust the r sense value to monitor higher or lower current lev- els. select r sense using these guidelines: ? voltage loss: a high r sense value causes the power-source voltage to drop due to ir loss. for least voltage loss, use the lowest r sense value. ? accuracy: a high r sense value allows lower cur- rents to be measured more accurately. this is because offsets become less significant when the sense voltage is larger. ? efficiency and power dissipation: at high current levels, the i 2 r losses in r sense might be significant. take this into consideration when choosing the resis- tor value and power dissipation (wattage) rating. also, if the sense resistor is allowed to heat up exces- sively, its value could drift. ? inductance: if there is a large high-frequency com- ponent to i sense , keep inductance low. wire-wound resistors have the highest inductance, while metal film is somewhat better. low-inductance metal-film resistors are available. instead of being spiral wrapped around a core, as in metal film or wire- wound resistors, these are a straight band of metal. they are made in values under 1 . use in systems with super capacitors since the input common-mode voltage range of the max9928/max9929 extends all the way from -0.1v to 28v, they are ideal to use in applications that require use of super capacitors for temporary or emergency energy storage systems. some modern industrial and automotive systems use multifarad (1f?0f) capacitor banks to supply enough energy to keep critical sys- tems alive even if the primary power source is removed or temporarily disabled. unlike batteries, these capaci- tors can discharge all the way down to 0v. the max9928/max9929 can continuously help monitor their health and state of charge/discharge. ucsp applications information for the latest application details on ucsp construction, dimensions, tape carrier information, pcb techniques, bump-pad layout, and recommended reflow tempera- ture profile, as well as the latest information on reliability testing results, go to maxim? website at www.maxim- ic.com/ucsp to find application note 1891: understanding the basics of the wafer-level chip- scale package (wl-csp). chip information process: bicmos
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers ______________________________________________________________________________________ 11 1 2 3 4 8 7 6 5 out gnd v cc n.c. n.c. rs+ sign rs- max9928f MAX9929F max top view ucsp (1mm x 1.5mm) top view (bumps on the bottom) v cc gnd out 1 a b 23 rs+ sign rs- max9928f MAX9929F + pin configurations c digital input adc gnd gnd r sense 2.5v to 5.5v 0.1 f v in -0.1v to +28v out sign v cc rs+ rs- r out * *for the max9928f only max9928f MAX9929F load wall-cube charger typical operating circuit
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers 12 ______________________________________________________________________________________ package information for the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages . note that a "+", "#", or "-" in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing per - tains to the package regardless of rohs status. package type package code outline no. land pattern no. 8 ?ax u8+1 21-0036 90-0092 6 ucsp b6+1 21-0097
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers ______________________________________________________________________________________ 13 package information (continued) for the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages . note that a "+", "#", or "-" in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing per - tains to the package regardless of rohs status.
max9928/max9929 -0.1v to +28v input range, micropower, uni-/bidirectional, current-sense amplifiers maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidanc e. 14 ____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 2012 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. revision history revision number revision date description pages changed 0 12/08 initial release 1 8/09 removed max9928t and max9929t from data sheet 1?, 7?2 2 4/11 updated top marks 1 3 4/12 removed the r61a1+1 package code note and references 1

▲Up To Search▲

Price & Availability of MAX9929F

	To Download MAX9929F Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .