11/21

BM63374S-VA

BM63374S-VC

TSQ50501-BM63374S-2

© 2020 ROHM Co., Ltd. All rights reserved.

30.Jul.2020 Rev.001

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TSZ22111・15・001

4) Thermal Shutdown (TSD), monitoring LVIC temperature

d3. All low side IGBTs turn off in spite of control input condition.

s don’t turn on until inputting the next ON signal (LIN=L→H).

IGBT of each phase can return to normal state by inputting ON signal to each phase.

Notice

1) In case of TSD trip and FO output, please stop controlling IPM quickly to avoid the abnormal state.

2) If the cooling system is in abnormal state (e.g. heat sink comes off, fixed loosely, or cooling fan stops) when TSD trips,

don

(150°C).

3) TSD function detects LVIC temperature, so it cannot respond to rapid temperature rise of power chip. Therefore, TSD

will not work properly in the case of rapid temperature rise like motor lock or over current.

LIN

RESET

d1

TSD

Ic

FO

SET

d2

d5

d3

d4

d6

d7

Figure 14. TSD Timing Chart