參數(shù)資料
型號(hào): CAT4238TD-GT3
英文描述: High Efficiency 10 LED Boost Converter
中文描述: 高效率的LED升壓轉(zhuǎn)換器10
文件頁(yè)數(shù): 5/14頁(yè)
文件大?。?/td> 290K
代理商: CAT4238TD-GT3
CAT4238
2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. 5019 Rev. A
TYPICAL CHARACTERISTICS
V
IN
= 3.6V, C
IN
= 4.7
μ
F, C
OUT
= 0.22μF, L = 47μH with 10 LEDs at 20mA, T
AMB
= 25oC, unless otherwise specified.
Quiescent Current vs. VIN (Not Switching)
50
75
100
125
150
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE [V]
Q
μ
A
VFB = 0.4V
Quiescent Current vs. VIN (Switching)
0.0
0.5
1.0
1.5
2.0
3.0
3.5
INPUT VOLTAGE [V]
4.0
4.5
5.0
5.5
Q
FB pin voltage vs. Temperature
297
298
299
300
301
302
303
-50
0
50
100
150
TEMPERATURE [oC]
F
FB Pin Voltage vs. Output Current
290
295
300
305
310
5
10
15
20
25
30
OUTPUT CURRENT [mA]
F
10 LEDs
Switching Frequency vs. Supply Voltage
1.2
S
Switching Waveforms
0.8
0.9
1.0
1.1
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE [V]
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