Description
DUAL STEPPER MOTOR DRIVER NJM3773 s GENERAL .
The NJM3773 is a switch-mode (chopper), constant-current driver with two channels: one for each winding of a two-phase stepper motor.
Features
* Dual chopper driver
* 750 mA continuous output current per channel
* High impedance current control inputs
* Digital filter on chip eliminates external filtering components
* Packages DIP22 / PLCC28 / EMP24(Batwing)
s BLOCK DIAGRAM
Phase 1
Dis1 VR1
C1
N
Applications
* together with an external micro controller. The current control inputs are low current, high impedance inputs, which allows the use of unbuffered DAC or external high resistive resistor divider network. The NJM3773 contains a clock oscillator, which is common for both driver channels, a set of compa
