ROHM BA6819AF, BA6809F Datasheet

Motor driver ICs

2-phase half-wave motor driver

BA6809F / BA6819AF

The BA6809F and BA6819AF are motor drivers designed for 3V and 5V fan motors. Built-in output transistors reduce
the number of external components required. The ICs have an alarm output pin (BA6809F) and Hall output pin
(BA6819AF).

Applications
Fan motors

Features

1) Lock detection and rotational speed sensing mecha­nisms are built in.

2) Alarm output pin (BA6809F) and Hall output pin
(BA6819AF).

Absolute maximum ratings (Ta = 25C)

3) Built-in thermal shutdown circuit.

4) Operation assured with a supply voltage as low as

2.7V.

5) Compact 8-pin SOP package.

Recommended operating conditions (Ta = 25C)

706

Motor driver ICs BA6809F / BA6819AF

Block diagram

Pin descriptions

Hall input / output truth table

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