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BTS3035EJ Folha de dados(PDF) 17 Page - Infineon Technologies AG |
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BTS3035EJ Folha de dados(HTML) 17 Page - Infineon Technologies AG |
17 / 45 page Datasheet 17 Rev. 1.0 2016-09-12 HITFET - BTS3035EJ Smart Low-Side Power Switch Power Stage In this situation the load is driven by a current through the intrinsic body diode of the BTS3035EJ. During Reverse Battery all protection functions like current limitation, over temperature shut down and over voltage clamping are not available. The device is dissipating a power loss which is defined by the driven current and the voltage drop on the DMOS reverse body diode “-VOUT”. 5.5 Inverse Current capability An inverse current situation means the OUT pin is pulled below GND potential by a current flowing from GND to OUT (for example in half-bridge configuration and inductive load using freewheeling via the low side path). In this situation the load is driven by a current through the intrinsic body diode (device off) of the BTS3035EJ. During Inverse operation all protection functions like current limitation, over temperature shut down and over voltage clamping are not available. The device is dissipating a power loss which is defined by the driven current and the voltage drop on the DMOS reverse body diode “-VOUT”. Input current behavior during inverse condition on Output Please note that during inverse current on drain an increased input current can flow ( IIN(-VOUT)). To limit this current it is needed to place a resistor (RIN) in line with the input, also to prevent the microcontroller I/O pins from latching up in this case. The value of this resistor is a compromise of input voltage level in normal operation and maximum allowed device input current IIN or I/O current (for example of microcontroller). (5.3) with IIN(max) = 2 mA (see also “Absolute Maximum Ratings” on Page 8) allow for the device; VOHµC(max) maximum high level voltage of the control signal (microcontroller I/O) and assuming -VOUT = 1.1 V (worst case) in inverse condition on the output If inverse current occurs while the STATUS is active (LOW), the STATUS will be reset (HIGH) after the inverse current disappears. 5.6 Characteristics Please see “Power Stage” on Page 14 for electrical characteristic table. (max) (max) (min) IN OHuC IN I V R = |
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