ACT4910QW datasheet(9/34 Pages) ACTIVE-SEMI

Il numero della parte	ACT4910QW

Spiegazioni elettronici	Power Loss Protection with 6A eFuse

Download	34 Pages

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Produttore elettronici	ACTIVE-SEMI [Active-Semi, Inc]

Homepage	http://www.active-semi.com

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9 / 34 page

ACT4910QW

Rev 1.0, 15-Sept-2017

Innovative PowerTM

www.active-semi.com

ActiveSwitcherTM is a trademark of Active-Semi

9

INTERNAL BUCK REGULATOR

(VIN = 12V, TA = 25°C, unless otherwise specified)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Operating Input Voltage Range

4.2

36

V

Typical Output Voltage

3.3

V

Programmable Output Voltage Range

Using external resistor divider

1.8

18

V

Standby Supply Current

VOUT = 103%, Regulator Enabled, No Load, not switch-

ing

500

µA

Feedback Voltage

1.2

V

Output Voltage Accuracy

VOUT = 12V, IOUT = 2A (PWM mode)

-1%

VNOM

1%

V

Output Voltage Accuracy

VOUT = 12V, IOUT = 1mA (PFM mode)

-1%

VNOM

1%

V

Line Regulation

VOUT = 12V VIN = 5.5V to 12V, PWM Regulation

0.02

%/V

Load Regulation

VOUT = 12V PWM Regulation

0.04

%/A

Power Good Threshold

VOUT Rising

90.5

93

95.5

%VNOM

Power Good Hysteresis

VOUT Falling

3

%VNOM

Overvoltage Fault Threshold

VOUT Rising

107

110

113

%VNOM

Overvoltage Fault Hysteresis

VOUT Falling

2

%VNOM

Programmable Switching Frequency

Range

320

1130

kHz

Current Limit, Cycle-by-Cycle

BK_CLIM = 00

BK_CLIM = 01

BK_CLIM = 10

BK_CLIM = 11

5.0

6.0

7.0

9.0

A

Current Limit, Cycle-by-Cycle Tolerance

At default BK_CLIM

-10%

+10%

At other set points

-15%

+15%

Current Limit, Shutdown

Above BK_CLIM

+15%

+22.5%

+30%

High Side On-Resistance

ISW = -3A, VSTR = 12V

45

mΩ

Low Side On-Resistance

ISW = 3A, VSTR = 12V

28

mΩ

SW Leakage Current

VSTR = 12V, VSW = 0 or 5.5V

1

µA

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