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CAT3604 Datasheet(PDF) 7 Page - Catalyst Semiconductor

Part # CAT3604
Description  4-Channel Regulated Charge Pump White LED Driver
PDF  11 Pages
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Manufacturer  CATALYST [Catalyst Semiconductor]
Direct Link  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

CAT3604 Datasheet(HTML) 7 Page - Catalyst Semiconductor

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CAT3604
7
Doc. No. 5008, Rev. I
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
TYPICAL CHARACTERISTICS
V
IN = 3.6V, EN = VIN, CIN = COUT = 1µF, RSET = 24kΩ, TAMB = 25˚C, unless otherwise specified.
Ground Current vs. Input Voltage (1.5x mode)
0.0
1.0
2.0
3.0
4.0
5.0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
INPUT VOLTAGE [V]
VIN = 3.6V
all LEDs open
Supply Current vs. Input Voltage
0
20
40
60
80
100
3.0
3.2
3.4
3.6
3.8
4.0
4.2
INPUT VOLTAGE [V]
4 LEDs at 15mA
1x mode
1.5x mode
Oscillator Frequency vs. Input Voltage
0.90
0.95
1.00
1.05
1.10
3.0
3.2
3.4
3.6
3.8
4.0
4.2
INPUT VOLTAGE [V]
4 LEDs at 20mA
Oscillator Frequency vs. Temperature
0.90
0.95
1.00
1.05
1.10
-40 -20
0
2040
6080 100
TEMPERATURE [˚C]
VIN = 3.6V
4 LEDs at 15mA
Output Resistance vs. Input Voltage (1x mode)
0
1
2
3
4
3.0
3.2
3.4
3.6
3.8
4.0
4.2
INPUT VOLTAGE [V]
100mA load
Output Resistance vs. Input Voltage (1.5x mode)
2
4
6
8
10
3.03.2
3.43.6
3.84.0
4.2
INPUT VOLTAGE [V]
25mA load
100mA load



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