參數(shù)資料
型號(hào): CAT4237
英文描述: High Voltage CMOS Boost White LED Driver
中文描述: 高電壓的CMOS升壓白光LED驅(qū)動(dòng)器
文件頁(yè)數(shù): 7/13頁(yè)
文件大小: 533K
代理商: CAT4237
CAT4237
2005 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
7 of 13
Doc. No. 5013, Rev. A
Typical Characteristics
V
IN
= 3.6V, C
IN
= 4.7uF, C
OUT
= 0.22μF, L = 33μH, with 8 LEDs at 20mA, T
AMB
=25oC, unless otherwise specified.
Power-up with 8 LEDs at 20mA
Switch ON Resistance vs. Input Voltage
0.0
0.5
1.0
1.5
2.0
2.5
3.0
INPUT VOLTAGE [V]
3.5
4.0
4.5
S
FB pin voltage vs. Temperature
297
298
299
300
301
302
303
-50
0
50
100
150
TEMPERATURE [oC]
F
V
IN
=3.6V, 8LEDs
I
LED
=20mA
Shutdown Voltage vs. Input Voltage
0.2
0.4
0.6
0.8
1.0
3.0
3.5
INPUT VOLTAGE [V]
4.0
4.5
5.0
S
125°
C
25°C
85°C
-40°C
Maximum Output Current vs. Input Voltage
0
20
40
60
80
100
120
140
2.5
3.0
3.5
4.0
4.5
5.0
INPUT VOLTAGE [V]
M
VOUT = 15V
VOUT = 20V
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