Description
The UTC MM1538 contains a 4ch H bridge driver and DC-DC converter control circuit on one chip, and was developed for use in portable CD players.
Features
- Built-in 4ch H bridge driver, and PWM control of load drive voltage is made possible by external components.
- DC-DC converter control circuit on chip.
- With reset output inversion output pin.
- Empty detection level can be switched between rechargeable battery and dry battery.
- Constant current charging; current value can be varied using external resistor.
- Built-in power transistor for charging.
- Built-in independent thermal shutdown circuit. QFP-44-0.8.
MM1538_UTC.pdf
