Outline
This driver IC contains a 4ch H bridge driver and DC-DC converter control circuit on one chip, and was developed for use in portable CD players. QFP-44 is used for the package, making it ideal for smaller sets.

Features
(1) Built-in 4ch H bridge driver, and PWM control of load drive voltage is made possible by external components.
(2) DC-DC converter control circuit on chip.
(3) With reset output inversion output pin.
(4) Empty detection level can be switched between rechargeable battery and dry battery.
(5) Constant current charging; current value can be varied using external resistor.
(6) Built-in power transistor for charging.
(7) Built-in independent thermal shutdown circuit.

Applications
    Portable CD radio cassette recorders