TPS2660: Output Reverse Polarity Protection (ORPP) Circuit

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Presentation transcript:

TPS2660: Output Reverse Polarity Protection (ORPP) Circuit

Schematic Additional components for ORPP D1, D2 - SBR0560S1-7 D3 - BZT52C12S-7-F Q1 - 2N7002-7-F

Test Results When device powered from a 5V supply VIN=5V; VOUT connected to +48V source VIN=5V; VOUT connected to -48V source

Test Results When device is unpowered; Assuming 10k resistance on input side VOUT connected to -48V source VOUT connected to +48V source

Conclusion Device performance is evaluated on EVM with the recommend additional circuit components With the additional circuit, the device is able to block ±48V external supply on output and protects the input side 5V source

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