SHINDENGEN MTD2003B
Stepper Motor Driver IC
MTD2003B CPU or GATE ARRAY CPU or GATE ARRAY GATE CIRCUIT Vcc=5V Vcc Vcc OUT1 OUT2 VmmA VmmB OUT3 OUT4 GATE CIRCUIT IN1 IN2 I0 I1 Vcc Rt Ct OSC BLANK QR S CR Current - Sensor + Current Sensor - + RQ S PG LG Vref VsA RsA RsB VsB Rs Rs 2-bit digital current selection IN4 IN3 Vcc Vr I0 I1 Ichop = Vr 10 Rs − 0.015 f = 0.72 1 Ct Rt