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ACT6330 Datasheet(PDF) 9 Page - Active-Semi, Inc

No. de pieza ACT6330
Descripción Electrónicos  Dual PWM Step-Up DC/DCs in TQFN33
PDF  14 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

ACT6330 Datasheet(HTML) 9 Page - Active-Semi, Inc

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ACT6330
Rev0, 02-Apr-08
WLED BIAS DC/DC CONVERTER (REG1)
Innovative Power
TM
- 9 -
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.
ActivePMU
TM is a trademark of Active-Semi.
TYPICAL PERFORMANCE CHARACTERISTICS
(ACT6330QK, VIN = 3.6V, L = 22µH, CIN = 2.2µF, COUT= 2.2µF, TA = 25°C, unless otherwise specified.)
REG1 RDSON
900
IN Voltage (V)
5.5
800
700
600
500
400
300
2.5
3.0
3.5
4.0
4.5
5.0
REG1 Efficiency vs. Output Current
Output Current (mA)
100
31
50
90
80
70
60
1
5
9
13
17
21
25
ON1 Duty Cycle (%)
100
100
0
0
PWM Output Current Adjustment
90
80
70
60
50
40
30
20
10
10
20
30
40
50
60
70
80
90
ON1 PWM Frequency = 1kHz
4 LEDs
6 LEDs
CH1
CH2
REG1 Over-Voltage Protection
CH1: VOUT1, 10V/div
CH2: VFB1, 200mV/div
TIME: 2ms/div
0V
REG1 Startup Waveform
CH1
CH2
CH1: VOUT1, 10V/div
CH2: VON1, 1V/div
TIME: 100µs/div
0V
0V
200



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