參數(shù)資料
型號(hào): CAT37TDI-TE7
元件分類: LED驅(qū)動(dòng)器
英文描述: CMOS White LED Driver Boost Converter
中文描述: 的CMOS白光LED驅(qū)動(dòng)器升壓轉(zhuǎn)換器
文件頁(yè)數(shù): 9/12頁(yè)
文件大?。?/td> 566K
代理商: CAT37TDI-TE7
CAT37
9
Doc No. 5005, Rev. S
2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
TYPICAL APPLICATION CIRCUITS
The application diagrams are shown for the SOT23 pin numbers.
Three LEDs with DC Level Dimming Control
Four LEDs with PWM Dimming Control
Efficiency - Three LEDs
60
65
70
75
80
85
90
0
5
10
15
20
25
30
LED CURRENT [mA]
VIN=3.6V
VIN = 3.6V
E
VIN = 3.0V
Efficiency - Four LEDs
60
65
70
75
80
85
90
0
5
10
15
20
25
30
LED CURRENT [mA]
VIN = 3.0V
VIN = 3.6V
E
Efficiency - Two LEDs
Two LEDs with DC Level Dimming Control
60
65
70
75
80
85
90
0
5
10
15
20
25
LED CURRENT [mA]
VIN = 3.0V
VIN=3.6V
VIN = 3.6V
E
30
15mA
2
3
1
5
4
SW
VIN
SHDN
D1
VIN
3 V to 4.2 V
CAT37
FB
GND
VDC
Dimming
1k
18k
15mA
2
3
1
5
4
SW
VIN
SHDN
D1
VIN
3 V to 4.2 V
CAT37
FB
GND
VDC
Dimming
1k
18k
15mA
2
3
1
5
4
SW
VIN
SHDN
D1
VIN
3 V to 4.2 V
CAT37
FB
GND
PWM
1k
18k
10k
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