UPD168113 datasheet(8/50 Pages) NEC

8 / 50 page

Data Sheet S16423EJ2V0DS

µ PD168113

5.4 Undervoltage Lockout (UVLO) Circuit

This function is to forcibly stop the operation of the IC to prevent malfunctioning if VDD drops.

If VDD drops abruptly in the order of several

µs, this function may not operate.

5.5 Overheat Protection (TSD) Circuit

This function is to forcibly stop the operation of the IC to protect it from destruction due to overheating if the chip

temperature of the IC rises.

The overheat protection circuit operates when the chip temperature rises to 150

°C or more. When overheat is

detected, all the circuits are stopped. When reset is performed or when UVLO is detected, the overheat protection

circuit does not operate.

5.6 Power Up Sequence

This IC has a circuit that prevents current from flowing into the VM pin when VDD = 0 V. Therefore, the current that

flows into the VM pin is cut off when VDD = 0 V.

Because the VDD pin voltage and VM pin voltage are monitored, a current of 3

µA MAX. flows into the VM pin when

VDD is applied.

UPD168113 Datasheet(PDF) 8 Page - NEC