BTS737S3 Infineon Technologies, BTS737S3 Datasheet
BTS737S3
Specifications of BTS737S3
BTS737S3T
SP000014328
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BTS737S3 Summary of contents
Page 1
... Proportional load current sense (with defined fault signal during thermal shutdown and current limit) Infineon technologies 5.0 ...40V bb(on) four parallel 35m 9m ON 5.4A 11.1A 40A 40A Datasheet BTS737S3 Package P-DSO-28 Block Diagram Vbb IN1 Logic IS1 Channel 1 IS2 Channel 2 IN2 IN3 Logic ...
Page 2
... Proportional sense current channel 1 control and protection circuit of channel 2 control and protection circuit of channel 3 control and protection circuit of channel 4 2 Datasheet BTS737S3 VBB OUT1 LOAD OUT2 OUT3 OUT4 2004-Feb-19 ...
Page 3
... OUT4 5 IS1 Diagnostic feedback channel IS2 Providing a sense current, proportional to the load current 12 IS3 13 IS4 2 GND1/2 Ground of chip 1 (channel 1,2) 9 GND3/4 Ground of chip 2 (channel 3,4) Infineon technologies Datasheet BTS737S3 Pin configuration (top view GND1/2 2 IN2 3 IN1 4 IS1 5 IS2 GND3/4 9 IN4 10 IN3 11 ...
Page 4
... 25° 85° one channel: two parallel channels: four parallel channels: IN: IS: require an external current limit for the GND and status pins (a 75 bb(AZ) 2 (one layer thick) copper area for Datasheet BTS737S3 Symbol Values L(lim Load dump T -40 ...+150 j -55 ...+150 ...
Page 5
... 25° 150°C: j one channel active: I L(NOM) 150° L(GNDhigh 90 OUT 10 OUT off dV/ -dV/ (one layer thick) copper area for Datasheet BTS737S3 Values min typ Max -- -- Values min typ Max -- 5.0 5.4 -- 6.7 7.4 -- 10.5 11 150 -- 120 250 0 ...
Page 6
... T =-40...25° L(off) =150° one channel on: GND four channels on: I L(lim) each channel I L(SCr) T =25°C: t j,start off(SC) 13 out > require an external current limit for the GND and status pins (a 75 bb(AZ) 6 Datasheet BTS737S3 5.0 -- bb(on bb(AZ 1 ON(CL) 150 -- ...
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... 0 17) V 18) t delay(fault) I IS,lim = IS(LL IS(LH) 10% after IS static son(IS) signal remains for t fault delay(fault) 7 Datasheet BTS737S3 2.5 3.5 I 1.7 -- IN(T+) 1.5 -- IN(T 0.3 IN( 300 ILIS 4575 5300 4100 5300 4200 5300 3580 5800 5.4 6.3 fault -- -- 4 -- 5.4 6.3 IS(lim 2 longer than the restart of the switch (see 2004-Feb-19 6 ...
Page 8
... high impedance, potential depends on external circuit Leadfram IN3 OUT1 IN4 OUT2 ND1 UT2 O UT1 I and therefore also the sense current L 8 Datasheet BTS737S3 Current Sense nominal V fault 0 V fault 0 V fault 0 20) <nominal Leadfram IN3 IN4 12 OUT3 PROFE T IS3 Chip 2 16 ...
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... GND1/2 or GND3 6.1 V typ GND fault Reverse battery protection GND Temperature protection and sense functionality is not active during inverse current operation. 9 Datasheet BTS737S3 OUT1 or OUT2 + Power GND = 47 V typ. ON(CL Logic IS V Integrated Z1 GND resistor R R GND IS GND Signal GND = 47 V typ ...
Page 10
... Energy stored in load inductance: While demagnetizing load inductance, the energy dissipated in PROFET is with an approximate solution for R L OUT E AS Maximum allowable load inductance for a single switch off j,start = 150° [mH] L 1000 100 10 1 0.1 10 Datasheet BTS737S3 OUT PROFET IS GND 2 · · ...
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... Typ. on-state resistance high [mOhm 180 Typ. standby current 9...34 V, IN1,2,3,4 = low bb(off bb(off - Infineon technologies Tj = 150°C 25°C -40° [V] bb 100 150 200 T [° Datasheet BTS737S3 2004-Feb-19 ...
Page 12
... Note, that the sense resistor may not fall short of a off minimum value of 500 . t slc(IS ESD V fault t t soff(IS Datasheet BTS737S3 ) and sense voltage (V S and I for three different sense L(lim ILIS nominal > 500 IS 2004-Feb-19 ...
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... S t Heating up may require several milliseconds, depending on external conditions typ. increases with decreasing temperature. L(lim’) Figure 3b: Turn on into short circuit: shut down by overtemperature, restart by cooling (two parallel switched channels 1 and 2) IN1 L(SCp) t off(SC Datasheet BTS737S3 I L(SCr) V fault I L(SCr) V fault 2004-Feb-19 ...
Page 14
... Infineon technologies Figure 6b: Current sense ratio 10000 5000 [ 21) This range for the current sense ratio refers to all devices. The accuracy of the k least by a factor of two by calibrating the value of k for every single device. ILIS 14 Datasheet BTS737S3 21 ILIS [A] can be raised at ILIS 2004-Feb- ...
Page 15
... Life support devices or systems are intended to be implanted in the human body support and/or maintain and sustain and/or protect thja human life. If they fail reasonable to assume that the health of the user or other persons may be endangered. 15 Datasheet BTS737S3 2004-Feb-19 ...