A3959SB-T DIP24-0.3
ALLEGRO MICROSYSTEMS A3959SB-T IC MOTOR DRIVER, FULL BRIDGE, 3A, DIP24 DMOS FULL-BRIDGE PWM MOTOR..
- 1.SYP 0.SYP
- Brand: ATC
- Product Code:1003930
- Availability:Pre-Order
ALLEGRO MICROSYSTEMS A3959SB-T IC MOTOR DRIVER, FULL BRIDGE, 3A, DIP24
DMOS FULL-BRIDGE PWM MOTOR DRIVER
Designed for pulse-width modulated (PWM) current control of DC motors, the A3959SB, A3959SLB, and A3959SLP are 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 A3959SB/SLB/SLP is a choice of three power packages, a 24-pin plastic DIP with a copper batwing tab (package suffix B ), a 24-lead plastic SOIC with a copper batwing tab (package suffix LB ), and a thin (<1.2 mm) 28-lead plastic TSSOP with an exposed thermal pad (suffix LP ). In all cases, the power tab is at ground potential and needs no electrical isolation. Each package is available in a leadfree version (100% matte tin leadframe).
The A3959SB-T package variant is discontinued. Samples are no longer available. Date of status change: June 1, 2016.
Recommended Substitutions: For existing customer transition, and for new customers or new applications, refer to the A3959SLPTR-T and A3959SLBTR-T.
±3 A, 50 V Output Rating
Low rDS(on) Outputs (270 milliohms, 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
The A3959SB/SLB/SLP is a choice of three power packages:
24-pin plastic DIP with a copper batwing tab (package suffix B ); Thin (<1.2 mm) 28-lead plastic TSSOP with an exposed thermal pad (suffix LP )
24-lead plastic SOIC with a copper batwing tab (package suffix LB )
In all cases, the power tab is at ground potential and needs no electrical isolation. Each package is available in a leadfree version (100% matte tin leadframe).
DMOS FULL-BRIDGE PWM MOTOR DRIVER
Designed for pulse-width modulated (PWM) current control of DC motors, the A3959SB, A3959SLB, and A3959SLP are 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 A3959SB/SLB/SLP is a choice of three power packages, a 24-pin plastic DIP with a copper batwing tab (package suffix B ), a 24-lead plastic SOIC with a copper batwing tab (package suffix LB ), and a thin (<1.2 mm) 28-lead plastic TSSOP with an exposed thermal pad (suffix LP ). In all cases, the power tab is at ground potential and needs no electrical isolation. Each package is available in a leadfree version (100% matte tin leadframe).
The A3959SB-T package variant is discontinued. Samples are no longer available. Date of status change: June 1, 2016.
Recommended Substitutions: For existing customer transition, and for new customers or new applications, refer to the A3959SLPTR-T and A3959SLBTR-T.
±3 A, 50 V Output Rating
Low rDS(on) Outputs (270 milliohms, 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
The A3959SB/SLB/SLP is a choice of three power packages:
24-pin plastic DIP with a copper batwing tab (package suffix B ); Thin (<1.2 mm) 28-lead plastic TSSOP with an exposed thermal pad (suffix LP )
24-lead plastic SOIC with a copper batwing tab (package suffix LB )
In all cases, the power tab is at ground potential and needs no electrical isolation. Each package is available in a leadfree version (100% matte tin leadframe).
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