A3965SLB

A3965SLB Manufacturer

A3965SLB Description

A3965SLB Categories

A3965SLB Datasheet (PDF)

A3965SLB Price & Availability

A3965SLB Features

• ±500 mA Continuous Output Current Rating
• 20 V Output Voltage Rating
• 2.85 to 5.5 V Logic Supply Operation
• Sleep Mode for Minimum Power Consumption
• Fixed Frequency PWM
• Offset On Pulses to Minimum Peak Supply Transient Currents
• Internal UVLO and Thermal-Shutdown Circuitry
• Crossover-Current Protection

A3965SLB Description

Designed for Pulse Width Modulated (PWM) current control of low voltage stepper motors, the A3965S is capable of output currents to ±500 mA and operating voltages to 20 V. The A3965 is particularly attractive for low power or battery operated motors where minimal power consumption is desired. A SLEEP mode disables all circuitry and typically draws less than 1 µA supply current from motor and logic supply. During operation the fixed frequency ON pulses of each H-bridge are 180 degrees out of phase to minimize the peak demand required of the motor supply allowing savings in size and cost of external power supply components. PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a stepper motor with externally applied PWM control signals.

Internal circuit protection includes thermal shutdown with hysteresis, undervoltage monitoring of V_DD and charge pump, and crossover current protection. Special power up sequencing is not required.

A3965SLB Parameters