LB1840 View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LB1840

Low-voltage/Low-saturation Bidirectional Variable Constant-voltage Motor Driver

SANYO -> Panasonic 

Continued from preceding page.

Pin No. Symbol

5

VC

LB1840M

Equivalent Circuit Diagram

Output

2

ENA

7

VM

Pin Function

Input pins that determine the constant-

voltage regulated output level.

The constant-voltage regulated output VO

(= voltage between H side output and

GND) is controlled by VO = 2.5 × VC. There

are no limitations on the magnitude

relationships between the VCC and VC

supply voltages.

Standby/drive control input pin.

Current drain in standby mode is 10 µA or

less.

L: –0.3 to + 0.7 V or open

H: 3.0 to 9.0 V

There are no limitation on the magnitude

relationships between VCC and VENA

supply voltage.

Control input pin for switching between

constant voltage output and saturated

output.

L: –0.3 to VCC − 2.5 V

(saturated output)

H: VCC − 0.3 to VCC or open

(constant-voltage regulated output)

Sample Application Circuit

Stepping motor

If the outputs oscillate, insert capacitors

of 0.001 to 0.1 µF between the outputs.

No.4996 -4/5

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