When Thermal Shutdown Circuit Operates
IN (Input)
OUT
(Output)
FLG
(Output)
5V
GND
5V
GND
5V
GND
CTL
(Input)
5V
GND
Tch
Thermal shutdown circuit
operating temperature (rising)
µPD16875
Standby status
Non-standby
status
Thermal shutdown circuit
operating temperature (falling)
While the thermal shutdown circuit is activated, the output pins are in the OFF status. However, the IC does not
enter the standby status even if all the CLT pins are deasserted inactive at the same time.
The thermal shutdown circuit is not activated even if the junction temperature exceeds 150°C TYP. while the IC is
in the standby mode (when CTL1 and CTL2 pins are inactive).
TEST CIRCUIT
10 kΩ
10 kΩ
CTL A OUT A
5V
10 Ω
FLG A
IN
FLG B
GND
CTL B OUT B
1 µF
10 Ω
µ PD16875
Data Sheet S13895EJ1V0DS
11