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ACT4514 Datasheet(PDF) 13 Page - Active-Semi, Inc

No. de pieza ACT4514
Descripción Electrónicos  Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
PDF  16 Pages
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Fabricante Electrónico  ACTIVE-SEMI [Active-Semi, Inc]
Página de inicio  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT4514 Datasheet(HTML) 13 Page - Active-Semi, Inc

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ACT4514
Rev 1, 21-Jul-11
Active-Semi
Innovative Power
TM
- 13 -
www.active-semi.com
Copyright © 2011 Active-Semi, Inc.
Shutdown Current vs. Input Voltage (EN pulled low)
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
140
120
100
80
60
40
20
0
Standby Supply Current vs. Input Voltage
2000
1800
1600
1400
1200
1000
800
600
400
200
0
Reverse Leakage Current (VIN Floating)
100
80
60
40
20
0
VOUT (V)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Input Voltage (V)
0
5
10
15
20
25
30
35
40
Input Voltage (V)
0
5
10
15
20
25
30
35
40
Start up into CV Load
SW vs. Output Voltage Ripples
Start up into CV Load
V0UT = 5V
CV = 3.2V
IISET = 0.9A
VIN = 12V
CH1: IOUT, 500mA/div
CH2: VOUT, 2V/div
TIME: 200µs/div
CH1: IOUT, 500mA/div
CH2: VOUT, 2V/div
TIME: 200µs/div
VIN = 12V
V0UT = 5V
I0UT = 0.9A
CH1
CH2
CH1: SW, 10V/div
CH2: VOUT_RIPPLE, 50mV/div
TIME: 2µs/div
V0UT = 5V
CV = 3.2V
IISET = 0.9A
VIN = 24V
CH1
CH2
CH1
CH2
(Circuit of Figure 7, IISET = 0.9A, L = 82µH, CIN = 10µF, COUT = 22µF, TA = 25°C, unless otherwise specified.)



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