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Is the A3959 a constant-current or a constant-voltage controlled device?

April 26, 2017a3959 constant-current controlled device

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Is the A3959 a constant-current or a constant-voltage controlled device?

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The A3959 provides constant-current control. Motor winding current is controlled by an internal PWM current-control circuit, which incorporates an internal OSC circuit to set the fixed off-time, which is typically 24 µs.