Rainbow-electronics BA6950FS Instrukcja Użytkownika Strona 1

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484
Motor driver ICs
Reversible motor driver
BA6950FS
The BA6950FS is a reversible-motor driver suited for brush motors. Two logic inputs allow four output modes: forward,
reverse, stop (standby), and brake. The rotational speed of motor can be set arbitrarily by changing the voltage applied
to the motor with control pins. The IC can also drive a motor at a constant speed by using a built-in current feedback
amplifier.
Applications
VCRs, audio equipment
Features
1) Two logic inputs allow four output modes: forward, re-
verse, stop (standby), and brake.
2) Motor speed variable with voltage control signals.
3) Built-in current feedback amplifier allows constant
motor speed.
4) Control gain can be set arbitrarily by using external
resistors.
5) Built-in thermal shutdown circuit.
Absolute maximum ratings (Ta = 25C)
Recommended operating conditions (Ta = 25C)
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Podsumowanie treści

Strona 1 - Reversible motor driver

484Motor driver ICsReversible motor driverBA6950FSThe BA6950FS is a reversible-motor driver suited for brush motors. Two logic inputs allow four outpu

Strona 2 - Motor driver ICs BA6950FS

485Motor driver ICs BA6950FSBlock diagramPin descriptions

Strona 3

486Motor driver ICs BA6950FSInput/output circuit (resistances, in Ω, are typical values)(1) R and F inputs (pins 5 and 10)(2) CTL amplifier (pins 2 a

Strona 4

487Motor driver ICs BA6950FSFElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 4.8V, VB = 4.8V)FCircuit operation(1) Input section

Strona 5

488Motor driver ICs BA6950FSFApplication exampleFOperation notes(1) Thermal shutdown circuitThe thermal shutdown (TSD) circuit turns off all driverout

Strona 6

489Motor driver ICs BA6950FSElectrical characteristic curvesExternal dimensions (Units: mm)

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