Ordering number : EN3949E
LB1838M
Monolithic Digital IC
Low-Voltage, Low-Saturation
http://onsemi.com
Bidirectional Motor Driver
Overview
The LB1838M is a low-saturation two-channel bidirectional motor driver IC for use in low-voltage applications.
The LB1838M is a bipolar stepper-motor driver IC that is ideal for use in printers, cameras and other portable devices.
Functions
• Low voltage operation (2.5V min)
• Low saturation voltage (upper transistor + lower transistor residual voltage: 0.40V at 400mA)
• Built-in through-current prevention circuit
• Separate logic power supply and motor power supply
• Built-in spark killer diodes
• Built-in thermal shutdown circuit
• Compact package: MFP14S
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
-0.3 to +10.5
V
VS max
-0.3 to +10.5
V
Output applied voltage
VOUT
VS+VSF
V
Input applied voltage
VIN
Ground pin flow-out current
IGND
Allowable power dissipation
Pd max
-0.3 to +10
V
Per channel
1.0
A
Independent IC
550
mW
Mounted on a specified board *
800
mW
Operating temperature
Topr
-20 to +75
°C
Storage temperature
Tstg
-40 to +125
°C
* Specified board: 20mm × 30mm × 1.6mm, glass epoxy board.
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
June, 2013
21209 MS/82599TH(II)/21097HA(II)/O1596HA(II)/4302TS(US) No.3949-1/5
