LX1672(2005_08) Ver la hoja de datos (PDF) - Microsemi Corporation

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LX1672
(Rev.:2005_08)

Multiple Output LoadSHARE™ PWM

Microsemi Corporation 

LX1672

®

Multiple Output LoadSHARE™ PWM

TM

PRODUCTION DATA SHEET

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, the following specifications apply over the operating ambient temperature 0°C ≤ TA ≤ 70°C except where

otherwise noted and the following test conditions: VCC = 5V, VCCL = 5V, VCX = 12V, HOX = LOX = 3000pF Load

Parameter

Symbol

Test Conditions

` UVLO AND SOFT-START (SS)

Start-Up Threshold (VCX), (VCCL)

Start-Up Threshold (VCC)

Hysteresis Vcc

SS Input Resistance

RSS

SS Shutdown Threshold

VSHDN

Hiccup Mode Duty Cycle

` LINEAR REGULATOR CONTROLLER

Voltage Reference Tolerance

Source Current

IHDRV

Sink Current

` DISABLE INPUT

ILDRV

CSS = 0.1μF

VLDFB = 0.8V, COUT = 330µF

VOUT = 9V

VOUT = 0.4V

PWM Disable

DISX

Pull down Resistance

LDO Disable

LDDIS Pull down Resistance

Note 1 – X = Phase 1,2

Note 2 – System Specification

LX1672

Units

Min Typ Max

3.5

4.0

4.5

V

4.0 4.25 4.5

V

0.1

V

20

KΩ

0.15

V

10

%

2

%

6

mA

0.2

mA

1.0

V

80

ΚΩ

2.5

V

100

KΩ

Copyright © 2000

Rev. 1.0, 2005-08-10

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 5

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