ACT4523A

Rev 0, 25-Jul-13

Innovative Power

TM

- 4 -

www.active-semi.com

Copyright © 2013 Active-Semi, Inc.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Voltage

10

36

V

Input Voltage Surge

40

V

Input Voltage Rising

9.0

9.4

9.7

V

Input Voltage Falling

1.1

V

Standby Supply Current

0.9

1.4

mA

Feedback Voltage

792

808

824

mV

Internal Soft-Start Time

400

µs

Error Amplifier Transconductance

650

µA/V

Error Amplifier DC Gain

4000

V/V

Switching Frequency

250

kHz

Foldback Switching Frequency

36

kHz

Maximum Duty Cycle

85

%

Minimum On-Time

190

ns

COMP to Current Limit Transconductance

3.9

A/V

Secondary Cycle-by-Cycle Current Limit

Duty = 0.5

5.2

A

Slope Compensation

1.4

A

ISET Voltage

1.0

V

ISET to IOUT DC Room Temp Current Gain

20000

A/A

CC Controller DC Accuracy

2650

mA

OVP pin Voltage

OVP Pin Rising

0.8

V

High-Side Switch ON-Resistance

85

mΩ

SW Off Leakage Current

1

10

µA

Thermal Shutdown Temperature

Temperature Rising

155

°C

Thermal Shutdown Temperature Hysteresis Temperature Falling

25

°C

ELECTRICAL CHARACTERISTICS