NJM3770A 데이터 시트보기 (PDF) - Japan Radio Corporation

부품명

상세내역

제조사

NJM3770A

STEPPER MOTOR DRIVER

Japan Radio Corporation  

NJM3770A

STEPPER MOTOR DRIVER

s GENERAL DESCRIPTION

NJM3770A is a stepper motor driver, which consists of a

LS-TTL compatible logic input stage, a current sensor, a

monostable multivibrator and a high power H-bridge output

stage. The NJM3770A is a high power version and pin-

compatible with the NJM3717.Two NJM3770A and a small

number of external components form a complete control

and drive unit stepper motor systems.

s EATURES

• Half-step and full-step operation

• Switched mode bipolar constant current drive

• Wide range of current control 5 -1800 mA

• Wide voltage range 10 - 45 V

• Thermal overload protection

• Packages DIP16 (Batwing) / PLCC28 / EMP20

s PACKAGE OUTLINE

NJM3770AD3

NJM3770AE2

NJM3770AFM2

s BLOCK DIAGRAM

Phase

I

1

I0

VR

GND

VCC

VMM

VMM

Schmitt

Trigger

Time

Delay

1

≥1

≥1

MA

MB

&&&&

≥1

≥1

+

–

+

–

+

–

Current Sensor

C

Output Stage

Monostable

toff = 0.69 • RT • CT

T

E

NJM3770A

Figure 1. Block diagram

Share Link: