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LAG674

Electronic Governer for DC Motors

Mitsumi 

MITSUMI

Electronic Governer for DC Motors LAG674

Electronic Governer for DC Motors

Monolithic IC LAG674

Outline

This is an IC for DC motor electronic governors, developed with emphasis on low-voltage operation; it has

control functions operating at voltages as low as 0.9 V (with performance guaranteed to 1.0 V).

Features

1. Stabilized internal reference voltage generation circuit with a flat temperature characteristic (±100 ppm) and

excellent reduced-voltage characteristics (operation stable down to 0.9 V)

2. Low startup voltage of 0.75 V max.

3. Internal power transistor ensures large startup currents (500 mA-min at 1.0 V using the standard circuit)

4. On/off switching pin provided; on/off control possible at low startup voltages, power supply current while

off is 5µA or less

Package

SOP-8A (LAG674F)

Absolute Maximum Ratings

Item

Symbol

Ratings

Units

Operating temperature

TOPR

-20~+60

°C

Storage temperature

TSTG

-40~+125

°C

Power supply current

VCC

7

V

Power consumption I

Pd1

600

mW

Power consumption II

Operating voltage

Pd2

* 900 1

mW

Vop

5

V

Output current

IL

* 1.0 2

A

*1: When mounted on a 20 30 0.5 mm printed circuit board (glass-reinforced epoxy).

*2: When Pd exceeds the rated value, the value of Pd takes precedence.

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