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ACT4525 Datasheet(PDF) 4 Page - Active-Semi, Inc

Part # ACT4525
Description  40V/3.5A CV/CC Buck Converter with USB Auto ?밆etect
PDF  11 Pages
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Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT4525 Datasheet(HTML) 4 Page - Active-Semi, Inc

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ACT4525
Rev1.1, December 17th, 2015
Innovative PowerTM
- 4 -
www.active-semi.com
Copyright © 2015 Active-Semi, Inc.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Input Over Voltage Protection
VIN_OVP
Rising
40
42
44
V
Input Over Voltage Hysteresis
4
V
Input Over Voltage Response Time
T_VIN_OVP VIN step from 30V to 45V
250
ns
Input Under Voltage Lockout (UVLO)
VIN
Rising
4.5
V
Input UVLO Hysteresis
200
mV
Input Voltage Power Good Deglitch
Time
No OVP
40
ms
Input Voltage Power Good Deglitch
Time
No UVP
10
us
Input Standby Current
Vin=12V, Vout=5.1V, Iload=0
500
uA
Output Voltage Regulation
CSP
5.05
5.1
5.15
V
Output Over Voltage Protection
(OVP)
Output rising
5.7
V
Output Over Voltage Deglitch Time
1.0
us
Output Voltage Cord Compensation
Output current 2.4A
-15%
100
+15%
mV
Output Under Voltage Protection
(UVP)
VOUT
VOUT falling
-10%
3.2
10%
V
UVP Hysteresis
VOUT
VOUT rising
0.2
V
UVP Deglitch Time
VOUT
10
us
UVP Blanking Time at Startup
3.5
ms
CC1
Rcs=25mΩ
2.50
2.65
2.80
A
Output Constant Current Limit
CC2
Rcs=50mΩ
1.1
1.2
1.3
A
Hiccup Waiting Time
4.13
S
Top FET Cycle by Cycle Current
Limit
4.5
5.8
A
Top FET Rdson
70
mΩ
Bottom FET Rdson
4.7
Ω
Maximum Duty Cycle
99
%
Switching Frequency
-10%
125
+10%
kHz
Soft-start Time
2.0
ms
ELECTRICAL CHARACTERISTICS
(VIN = 12V, TA = 25°C, unless otherwise specified.)



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