| TYPE | DESCRIPTION |
|---|
| Mounting Style | Through Hole |
| Number of Pins | 24 Pin |
| Supply Voltage (DC) | 4.50 V (min) |
| Case/Package | DIP |
| Number of Outputs | 2 Output |
| Output Voltage | 50.0 V |
| Output Current | 3.00 A, -3.00 A (min) |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
The A3959SB-T is a DMOS full-bridge PWM Motor Driver IC with crossover-current protection. The A3959 driver is designed for pulse width modulated current control of DC motors, capable of output currents to ±3A and operating voltages to 50V. Internal fixed off-time PWM current control timing circuitry can be adjusted via control inputs to operate in slow, fast and mixed current-decay modes. The PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a motor with externally applied PWM-control signals. Internal synchronous rectification control circuitry is provided to reduce power dissipation during PWM operation. Internal circuit protection includes thermal shutdown with hysteresis, under-voltage monitoring of supply and charge pump and crossover-current protection.
● Synchronous rectification for reduced power dissipation
● Internal UVLO and thermal-shutdown circuitry
● Internal oscillator for digital PWM timing
● Mixed, fast and slow current-decay modes
● Low RDS (ON) outputs
● -20 to 85°C Ambient temperature range
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