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參數資料
| 型號： | CAT4237TD |
| 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驅動器 |
| 文件頁數： | 6/13頁 |
| 文件大?。?/td> | 533K |
| 代理商： | CAT4237TD |
CAT4237
2005 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
6 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.
LED Current vs. Input Voltage (8 LEDS)
0
5
10
15
20
25
30
35
2.5
3.0
3.5
4.0
4.5
5.0
INPUT VOLTAGE [V]
L
R
FB
= 10
R
FB
= 15
R
FB
= 20
LED Current Regulation (20mA)
-1.0%
-0.5%
0.0%
0.5%
1.0%
3.0
3.3
3.6
3.9
4.2
4.5
4.8
INPUT VOLTAGE [V]
C
8 LED Efficiency vs. Load Current
65
70
75
80
85
90
5
10
15
20
25
30
LED CURRENT [mA]
E
VIN = 3.6V
VIN = 4.2V
8 LEDs
VOUT ~ 27V at 20mA
L = 33uH
8 LED Efficiency vs. Input Voltage
65
70
75
80
85
90
3.0
3.5
INPUT VOLTAGE [V]
4.0
4.5
5.0
E
15mA
20mA
8 LEDs
VOUT ~ 27V at 20mA
L = 33uH
7 LED Efficiency vs. Load Current
65
70
75
80
85
90
5
10
15
20
25
30
LED CURRENT [mA]
E
VIN = 3.6V
VIN = 4.2V
7 LEDs
VOUT ~ 23V at 20mA
L = 33uH
6 LED Efficiency vs. Load Current
65
70
75
80
85
90
5
10
15
20
25
30
LED CURRENT [mA]
E
VIN = 3.6V
VIN = 4.2V
6 LEDs
VOUT ~ 20V at 20mA
L = 33uH
相關PDF資料 |
PDF描述 |
|---|---|
| CAT4237TS | High Voltage CMOS Boost White LED Driver |
| CAT4240 | 6 Watt Boost LED Driver |
| CAT4240TD-GT3 | 6 Watt Boost LED Driver |
| CAT507BP | 3.3V 32K/64K x 16/18 Dual-Port Static RAM |
| CAT504J | 8-Bit Digital-to-Analog Converter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT4237TD-26771T3 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT4237TD-GT3 | 功能描述:LED照明驅動器 LED Driver,Boost 8 LED,series RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT4237TD-GT3 | 制造商:ON Semiconductor 功能描述:IC, WHITE LED DRIVER, BOOST, TSOT-23-5 |
| CAT4237TD-T3 | 功能描述:LED照明驅動器 High Voltage Boost White LED RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT4237TS | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:High Voltage CMOS Boost White LED Driver |
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