(China (Mainland))
Product Summary
Designed for pulse-width modulated (PWM) current control of bipolar microstepping stepper motors, the A3972SBT is capable of continuous output currents to ±1.5 A and operating voltages to 50 V. Internal fixed off-time PWM current-control timing circuitry can be programmed via a serial interface to operate in slow, fast, and mixed current-decay modes. The A3972SBT is supplied in a 24-lead plastic DIP with a copper batwing power tab. The power tab is at ground potential and needs no electrical isolation.
Parametrics
A3972SBT absolute maximum ratings: (1)Load Supply Voltage, VBB: 50 V; (2)Output Current, IOUT: ±1.5 A; (3)Logic Supply Voltage, VDD: 7.0 V; (4)Logic Input Voltage Range, VIN: -0.3 V to VDD + 0.3 V; (5)Reference Voltage, VREF: 3 V; (6)Sense Voltage (dc), VS: 500 mV; (7)Package Power Dissipation, PD: 3.1 W; (8)Operating Temperature Range, TA: -20℃ to +85℃; (9)Junction Temperature, TJ:+150℃; (10)Storage Temperature Range, TS: -55℃ to +150℃.
Features
A3972SBT features: (1)±1.5 A, 50 V Continuous Output Rating; (2)Low rDS(on) DMOS Output Drivers; (3)Optimized Microstepping via 6-Bit Linear DACs; (4)Programmable Mixed, Fast, and Slow Current-Decay Modes; (5)4 MHz Internal Oscillator for Digital Timing; (6)Serial-Interface Controls Chip Functions; (7)Synchronous Rectification for Low Power Dissipation; (8)Internal UVLO and Thermal Shutdown Circuitry; (9)Crossover-Current Protection; (10)Precision 2 V Reference; (11)Inputs Compatible with 3.3 V or 5 V Control Signals; (12)Sleep and Idle Modes.
Diagrams
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 A3972 |
Other |
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Data Sheet |
Negotiable |
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A3972SB |
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IC MOTOR DRIVER PWM DUAL 24-DIP |
Data Sheet |
Negotiable |
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A3972SB-T |
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IC MOTOR DRIVER PWM DUAL 24-DIP |
Data Sheet |
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A3973 |
Other |
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Data Sheet |
Negotiable |
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A3973SB |
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IC MOTOR DRIVER PWM DUAL 24-DIP |
Data Sheet |
Negotiable |
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A3973SB-T |
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IC MOTOR DRIVER PWM DUAL 24-DIP |
Data Sheet |
Negotiable |
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