Product Summary

The LB1838 is a low-saturation two-channel bidirectional motor driver IC for use in low-voltage applications. The LB1838 is a bipolar stepper-motor driver IC that is ideal for use in printers, FDDs, cameras and other portable devices.

Parametrics

LB1838 absolute maximum ratings: (1)Maximum supply voltage, VCC max: –0.3 to +10.5 V; VS max: –0.3 to +10.5 V; (2)Output applied voltage, VOUT: VS +VSF; (3)Input applied voltage, VIN: –0.3 to +10 V; (4)Ground pin flow-out current, IGND: 1.0 A per channel; (5)Allowable power dissipation, Pd max1: 550 mW Independent IC; Pd max2: 800 mW With board; (6)Operating temperature, Topr: –20 to +75℃; (7)Storage temperature, Tstg: –40 to +125℃.

Features

LB1838 features: (1)Low voltage operation (2.5 V min); (2)Low saturation voltage (upper transistor + lower transistor residual voltage; 0.40 V at 400 mA); (3)Through-current prevention circuit built in; (4)Separate logic power supply and motor power supply; (5)Spark killer diodes built in; (6)Thermal shutdown circuit built in; (7)Compact package (14-pin MFP).

Diagrams

LB1838 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LB1838MEVB
LB1838MEVB

ON Semiconductor

Power Management IC Development Tools EVM FOR LB1838M

Data Sheet

0-1: $27.27
LB1838M-MPB-E
LB1838M-MPB-E

ON Semiconductor

Motor / Motion / Ignition Controllers & Drivers AMUSEMENT

Data Sheet

0-1: $1.62
1-25: $1.46
25-100: $1.33
100-250: $1.20
LB1838M-TLM-E
LB1838M-TLM-E

ON Semiconductor

Motor / Motion / Ignition Controllers & Drivers MOTOR DRIVER

Data Sheet

0-1: $1.62
1-25: $1.46
25-100: $1.33
100-250: $1.20
LB1838M-TRM-E
LB1838M-TRM-E

ON Semiconductor

Motor / Motion / Ignition Controllers & Drivers AMUSEMENT

Data Sheet

0-1: $1.62
1-25: $1.46
25-100: $1.33
100-250: $1.20
LB1838M
LB1838M

Other


Data Sheet

Negotiable 
LB1838JM
LB1838JM

Other


Data Sheet

Negotiable 
LB1838JM-TRM-E
LB1838JM-TRM-E

ON Semiconductor

Motor / Motion / Ignition Controllers & Drivers MOTOR DRIVER

Data Sheet

0-610: $1.18
610-1000: $0.99
1000-2000: $0.94
2000-5000: $0.91