ACT4533C
Rev 1, 14-Nov-14
ELECTRICAL CHARACTERISTICS
(VIN = 12V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
Input Voltage
10
38
40
V
V
Input Voltage Surge
VIN UVLO Turn-On Voltage
Input Voltage Rising
Input Voltage Falling
9.0
9.4
1.1
0.9
808
400
9.7
V
VIN UVLO Hysteresis
V
Standby Supply Current
Feedback Voltage
VFB = 1V
1.4
mA
mV
µs
792
824
Internal Soft-Start Time
VFB = VCOMP = 0.808V,
∆ICOMP = ± 10µA
Error Amplifier Transconductance
650
µA/V
Error Amplifier DC Gain
Switching Frequency
4000
125
18
V/V
kHz
kHz
%
V
V
FB = 0.808V
FB = 0V
Foldback Switching Frequency
Maximum Duty Cycle
86
Minimum On-Time
290
5.1
ns
COMP to Current Limit Transconductance
Secondary Cycle-by-Cycle Current Limit
Slope Compensation
VCOMP = 1.2V
Duty = 0.5
A/V
A
6.8
Duty = DMAX
3.2
A
ISET Voltage
1.0
V
ISET to IOUT DC Room Temp Current Gain IOUT / ISET, RISET = 7.87kꢀ
20000
2650
0.8
A/A
mA
V
CC Controller DC Accuracy
OVP Pin Voltage
RISET = 7.87kꢀ, VOUT = 4.0V
OVP Pin Voltage Rising
OVP Pin Voltage Falling
OVP Pin Voltage
0.57
85
V
High-Side Switch ON-Resistance
Thermal Shutdown Temperature
mꢀ
°C
Temperature Rising
155
Thermal Shutdown Temperature Hysteresis Temperature Falling
25
°C
Innovative PowerTM
- 4 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
