HIGH-CURRENT HALF-BRIDGE PRINTHEAD/MOTOR DRIVER—WITH INTERNAL CURRENT SENSING AND CONTROL

The UDN2961B and UDN2961W are 3.4 A half bridges designed specifically for driving solenoid printheads, stepper motors, and dc motors. The UDN2961B/W consists of a power source driver output, a power sink driver output, a flyback recovery diode, internal current sensing circuitry, and a user-selectable fixed off-time chopper circuit.

FEATURES

■3.4 A, 45 V Source and Sink Drivers

■Internal Current Sensing

■User-Selectable Fixed Off-Time PWM Current Control

■Internal Flyback Diode

■Low Output Saturation Voltage

■Chip Enable

■Fast or Slow Current-Decay Modes

■Programmable Blanking Window

■Internal Thermal Shutdown Circuitry