Product Summary

The a3984slptr is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A. The a3984slptr includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes. The a3984slptr is the key to the easy implementation. Simply inputting one pulse on the STEP input drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program. The a3984slptr is an ideal fit for applications where a complex microprocessor is unavailable or is overburdened.

Parametrics

a3984slptr absolute maximum ratings: (1)Load Supply Voltage VBB: 35 V; (2)Output Current IOUT: ±2 A; (3)Logic Input Voltage VIN: –0.3 to 7 V; (4)Sense Voltage VSENSE: 0.5 V; (5)Reference Voltage VREF: 4 V; (6)Operating Ambient Temperature TA Range S: –20 to 85℃; (7)Maximum Junction TJ(max): 150℃; (8)Storage Temperature Tstg: –55 to 150℃; (9)Package Thermal Resistance RθJA 4-layer PCB, based on JEDEC standard: 28℃/W

Features

a3984slptr features: (1)Low RDS(ON) outputs; (2)Automatic current decay mode detection/selection; (3)Mixed and Slow current decay modes; (4)Synchronous rectification for low power dissipation; (5)Internal UVLO and thermal shutdown circuitry; (6)Crossover-current protection.

Diagrams

a3984slptr pin configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
A3984SLPTR
A3984SLPTR

IC DRIVER MICROSTEPPING 24-TSSOP
Data Sheet
Negotiable 
A3984SLPTR-T
A3984SLPTR-T

IC DRIVER MICROSTEPPING 24-TSSOP
Data Sheet
0-1: $3.10
1-10: $2.77
10-50: $2.49
50-100: $2.27
100-250: $2.05
250-500: $1.84
500-1000: $1.55