NX2422 datasheet(4/20 Pages) MICROSEMI

Part #	NX2422

Description	TWO PHASE SYNCHRONOUS PWM CONTROLLER WITH INTEGRATED FET DRIVER, DIFFERENTIAL CURRENT SENSE & 5V BIAS REGULATOR

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Manufacturer	MICROSEMI [Microsemi Corporation]

Direct Link	http://www.microsemi.com

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4 / 20 page

NX2422

4

Rev.2.1

12/01/08

PARAMETER

SYM

TEST CONDITION

MIN

TYP

MAX

UNITS

Supply Voltage(Vcc)

Rise Time

TLdrv(Rise)

10% to 90%

34

ns

Fall Time

TLdrv(Fall)

90% to 10%

18

ns

Current Sense

Amplifier(CS+, CS-)

Input Offset Voltage

-2

2

mV

Voltage Gain

29.7

30

30.3

V/V

OVP Threshold

percent of Vp

130

%

FB UVLO Threshold

percent of Vp

70

%

REFIN VOLTAGE

REFIN Voltage Range

0.4

2.5

V

Disable Voltage Threshold

0.3

0.35

0.4

V

Threshold Enable Internal

Reference

75

%VCC

5V AUX REG

Regout Output Voltage High

VIN=12V, PVCC=3V

11

V

Regout Output Voltage Low

VIN=12V,

PVCC=5.8V,

VCCDRV connected to 12V

by 1k resistor

2

V

Internal Schottky Diode

Forward voltage drop

forward current=10mA

600

mV

Deadband Time

Tdead(H to

L)

SW going Low to Ldrv going

High, 10% to 10%

10

ns

Propagation Delay

Tdealy(H)

IN going High to Ldrv going

Low

14

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