Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate

the performance, characteristics, and functions of the described products in the independent state, and are not

guarantees of the performance, characteristics, and functions of the described products as mounted in the

customer

device, the customer should always evaluate and test devices mounted in the customer

equipment.

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be

intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace

instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety

equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case

of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee

thereof. If you should intend to use our products for applications outside the standard applications of our

customer who is considering such use and/or outside the scope of our intended standard applications, please

consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our

customer shall be solely responsible for the use.

21209 MS/82599TH(II)/21097HA(II)/O1596HA(II)/4302TS(US) No.3949-1/5

LB1838M

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

VCC max

-0.3 to +10.5

V

Maximum supply voltage

VS max

-0.3 to +10.5

V

Output applied voltage

VOUT

VS+VSF

V

Input applied voltage

VIN

-0.3 to +10

V

Ground pin flow-out current

IGND

Per channel

1.0

A

Independent IC

550

mW

Allowable power dissipation

Pd max

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.

Ordering number : EN3949E

Monolithic Digital IC

Low-Voltage, Low-Saturation

Bidirectional Motor Driver