A3959SLBTR-T
Motor Driver ICs
Technical Specifications
| Type | Description |
|---|---|
| Interface | - |
| Number of H-Bridges | - |
| Technology | - |
| Peak Current | 6A |
| Features | Interleaved conduction protection;Current sensing/regulation function;Active braking function |
| Supply Voltage | 4.5V~5.5V |
| Type | Description |
|---|---|
| Operating Temperature | -20°C~+85°C |
| Quiescent Current | - |
| Output Current | 3 A |
| Rds On Ohm | 270mΩ |
| Package / Case | SOIC-24-300mil |
Product Introduction
Designed for pulse width modulated (PWM) current control of DC motors, the A3959 is capable of output currents to ±3 A and operating voltages to 50 V. 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.
PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a DC 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, undervoltage monitoring of supply and charge pump, and crossover-current protection. Special power-up sequencing is not required.
The A3959 provides a choice of three power packages, a 24-pin DIP with batwing tabs (package suffix ‘B’), a 24-lead SOIC with four internally-fused pins (package suffix ‘LB’), and a thin (< 1.2 mm) 28-pin TSSOP with an exposed thermal pad (suffix ‘LP’). In all cases, the power pins and tabs are at ground potential and need no electrical isolation. Each package is lead (Pb) free, with 100% matte tin leadframes.
Features
- ±3 A, 50 V Output Rating
- Low rDS(on) Outputs 270 mΩ (Typical)
- Mixed, Fast, and Slow Current-Decay Modes
- Synchronous Rectification for Low Power Dissipation
- Internal UVLO and Thermal-Shutdown Circuitry
- Crossover-Current Protection
- Internal Oscillator for Digital PWM Timing
Datasheet
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| Type | Details |
|---|---|
| ECCN | EAR99 |
Sourcing Information
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