MM1538 データシートの表示（PDF） - Mitsumi

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MM1538

4-ch Motor Driver for Portable CD Players

Mitsumi 

MITSUMI

4ch Moter driver IC for Portable CD Player

4-ch Motor Driver for Portable CD Players

Monolithic IC MM1538

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.

Package

QFP-44

Applications

Portable CD radio cassette recorders

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