MM1538 Overview
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.
Key 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
