BTS 737 S3 Infineon Technologies, BTS 737 S3 Datasheet
BTS 737 S3
Specifications of BTS 737 S3
Related parts for BTS 737 S3
BTS 737 S3 Summary of contents
Page 1
... Reverse battery protection with external resistor Overvoltage protection with external resistor (incl. load dump) Loss of ground protection Electrostatic discharge protection (ESD) Diagnostic Function 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 ...
Page 2
... Functional diagram overvoltage protection internal voltage IN1 ESD IS1 . IN2 IS2 GND1/2 IN3 IS3 IN4 IS4 GND3/4 Infineon technologies current limit gate control + charge clamp for logic pump inductive load temperature sensor Proportional sense current channel 1 control and protection circuit of channel 2 ...
Page 3
... 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 ...
Page 4
... setup without the DUT connected to the generator per ISO 7637-1 and DIN 40839 Load dump 6) Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6cm connection. PCB is vertical without blown air. See page 15 Infineon technologies = 25°C unless otherwise specified 13.5 V ...
Page 5
... Soldering point: upper side of solder edge of device pin 7,8. See page 16. 8) Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6cm connection. PCB is vertical without blown air. See page 15 9) See timing diagram on page 12. Infineon technologies Symbol each channel: R thjs R thja one channel active: ...
Page 6
... Status currents have to be limited (see max. ratings page 4 and circuit page 9 The reverse load current through the intrinsic drain-source diode has to be limited by the connected load. Note that the power dissipation is higher compared to normal operating conditions due to the voltage drop across the intrinsic drain-source diode. Infineon technologies =-40...25°C ...
Page 7
... GND 17) In the case of current limitation or thermal shutdown the sense signal is no longer a current proportional to the load current, but a fixed voltage of typ 18) In the case of thermal shutdown the V diagram on page 14). Infineon technologies 0 IN(off) ...
Page 8
... IS2 GND1 IS1 IS2 4 Leadframe ( connected to pin 14, 15, 28. bb 19) Current limitation is only possible while the device is switched on. 20) V Low ohmic short to may reduce the output current bb Infineon technologies Input Output level level ...
Page 9
... Sense output logic V fault V f ESD-ZD GND typ fault V < V fault ESD under all conditions Infineon technologies Overvoltage output clamp, IN1 to IN4 clamped Overvoltage protection of logic part GND1/2 or GND3 6.1 V typ., V ...
Page 10
... Consider at your PCB layout that in the case of Vbb dis- connection with energized inductive load all the load current flows through the GND connection. Infineon technologies Inductive load switch-off energy dissipation OUT = ...
Page 11
... L R [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
... proper turn on under all conditions Infineon technologies Figure 1c: Behaviour of sense output: Sense current (I function of load current dependent on the sense resistor Shown is V resistors. Curve 1 refers to a low resistor, curve medium-sized resistor and curve big resistor. t ...
Page 13
... The behaviour of IS and VS is shown for a resistor, which refers to curve 1 in figure OUT fault Infineon technologies Figure 3a: Short circuit: shut down by overtempertature, reset by cooling L(lim Heating up may require several milliseconds, depending on external conditions typ. increases with decreasing temperature. L(lim’ ...
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 ...
Page 15
... P , nominal load current tot I and thermal resistance R L(NOM) Infineon technologies Published by Infineon Technologies AG, BTS 737 S3 St.-Martin-Strasse 53, D-81669 München Q67060-S6133 © Infineon Technologies AG 2001 All Rights Reserved. 0.35 x 45˚ 1) 7.6 -0.2 Attention please! ...