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Semiconductor Components Industries, LLC, 2013
December, 2013
http://onsemi.com
LB1939T
Overview
The LB1939T is a constant voltage drive for single stepper motor. It is optimal for motor drive in portable
system products (Battery drive available).
Function
Low voltage drive
Dual power supply operation Vs=1.6V to 7.5V VDD=1.9V to 6.5V.
Single power supply operation Vs=VDD=1.9V to 7.5V.
Low saturation voltage Vosat=0.3V at Io=200mA.
Supports constant voltage and constant current drive
Built-in reference voltage circuit
Small and thickness Package TSSOP20
Current consumption 0 uA by standby mode
Typical Applications
POS terminal
Document scanner
Security Camera
Gas table
Pin Assignment Package Diagram
unit : mm(typ)
3246
Bip integrated circuit
Constant Voltage Drive
Stepper Motor Driver
Application Note
SANYO : TSSOP20(225mil)
0.65
(0.3)
0.22
0.5
0.15
(1.0)
0.08
1.2max
6.4
4.4
6.5
1
10
20
11
页面指南
