Product Summary

A3959SLB is 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.

Parametrics

A3959SLB absolute maximum ratings: (1)Load Supply Voltage, VBB: 50 V; (2)Output Current, IOUT (Repetitive): ±3.0 A; (Peak, <3 μs): ±6.0 A; (3)Logic Supply Voltage, VDD: 7.0 V; (4)Logic Input Voltage Range, VIN(Continuous): -0.3 V to VDD + 0.3 V; (tw <30 ns): -1.0 V to VDD + 1.0 V; (5)Sense Voltage, VS (Continuous): 0.5 V; (tw <3 μs): 2.5 V; (6)Reference Voltage, VREF: VDD; (7)Package Power Dissipation (TA = 25℃), PD: 2.5 W*; (8)Operating Temp. Range, TA: -20℃ to +85℃; (9)Junction Temperature, TJ: +150℃; (10)Storage Temp. Range, TS: -55℃ to +150℃.

Features

A3959SLB features: (1)±3 A, 50 V Output Rating; (2)Low rDS(on) Outputs (270 mΩ, Typical); (3)Mixed, Fast, and Slow Current-Decay Modes; (4)Synchronous Rectification for Low Power Dissipation; (5)Internal UVLO and Thermal-Shutdown Circuitry; (6)Crossover-Current Protection; (7)Internal Oscillator for Digital PWM Timing.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
A3959SLB
A3959SLB

IC MOTOR DRIVER PWM FULL 24-SOIC
Data Sheet
Negotiable 
A3959SLB-T
A3959SLB-T

IC MOTOR DRIVER PWM FULL 24-SOIC
Data Sheet
0-496: $2.15
A3959SLBTR
A3959SLBTR

IC MOTOR DRIVER PWM FULL 24-SOIC
Data Sheet
Negotiable 
A3959SLBTR-T
A3959SLBTR-T

IC MOTOR DRIVER PWM FULL 24-SOIC
Data Sheet
0-1: $3.65
1-10: $3.27
10-50: $2.94
50-100: $2.67
100-250: $2.42
250-500: $2.16