BA6191 Datasheet, PDF (4/6 Pages) Rohm – 2-channel reversible-motor driver

Optical disc ICs
FElectrical characteristics (unless otherwise noted, Ta=25_C, VCC=10V, Vref=2.5V)
BA6191
FCircuit operation
(1) Forward / reverse control block
The IC outputs the forward, reverse, stop (free rotation)
or brake mode in accordance with the two control logic
inputs.
〈Forward and reverse modes〉
An output voltage twice that of the reference voltage is
generated.
〈Stop mode〉
Each pin changes to the high impedance state.
〈Brake mode〉
Each pin outputs 0V.
Logic input and output truth table
1) Normal voltage is not output when the reference volt-
age is below 1.0V or about VCC / 2–1.0V.
2) VCC is the reference voltage for the input voltage of
logic input pins. In terms of potential relative to VEE,
the HIGH level are (VCC+5.0)V and LOW level are
(VCC.)V.
3) Fig. 2 shows each pin’s potential level.
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