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參數資料
| 型號： | CAT3604 |
| 元件分類： | LED驅動器 |
| 英文描述： | 4-Channel Regulated Charge Pump White LED Driver |
| 中文描述： | 4通道電荷泵白光LED驅動器 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 616K |
| 代理商： | CAT3604 |
2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
CAT3604
4-Channel Regulated Charge Pump White LED Driver
Doc. No. 5008, Rev. I
I
Automatic short circuit detect/disable
I
High-frequency Operation at 1MHz
I
Low value ceramic capacitors
I
"604" compatible pinout
I
Soft start and current limiting
I
Thin QFN 16-lead package, 4x4mm, 0.8mm
max height
DESCRIPTION
The CAT3604 is a charge pump operating in either
1x (LDO) mode or 1.5x fractional mode regulating
current through each of the 4 LED pins. Operation
at a fixed high frequency of 1MHz typical allows the
use of very small value ceramic capacitors.
The CAT3604 drives white light-emitting diodes
(LEDs) connected in parallel and provides tightly
matched regulated current to achieve uniformity of
brightness in LCD backlighting applications. An
external resistor R
SET
controls the output current
level. LED currents of up to 30mA are supported
over a range of input supply voltages from 3V to
FEATURES
I
Drives individually up to 4 LEDs
I
Output current up to 30mA per LED
I
Digital control On/Off of each LED
I
Compatible with supply voltage of 3V to 5.5V
I
Power efficiency up to 93%
I
2 modes of operation 1x and 1.5x
APPLICATIONS
I
Color LCD and keypad Backlighting
I
Cellular Phones
I
Handheld Devices
5.5V, making the device ideal for battery-powered
applications.
LED dimming can be accomplished by several
methods including using a DC voltage to set the
R
SET
pin current, applying a PWM signal on the
Control signals, or adding a switched resistor in
parallel with R
SET
. The Enable input pin allows the
device to be placed in power-down mode with
"zero” quiescent current.
The CAT3604 features short circuit and overcurrent
limiting protection. The device is available in a 16-
lead thin QFN package with a max height of 0.8mm.
I
Digital Cameras
I
PDAs
I
Portable MP3 players
TYPICAL APPLICATION
CAT3604
+
-
C1+
C2+
C1-
C2-
VIN
EN
CTR0
CTR1
CTR2
RSET
VOUT
LED1
LED2
LED3
LED4
COUT
20mA
RSET
VIN
3V to 4.2V
Battery
EN
Control 0
Control 1
Control 2
CIN
GND
相關PDF資料 |
PDF描述 |
|---|---|
| CAT3606HS4 | 6-Channel Low Noise Charge Pump White LED Driver |
| CAT3606 | 6-Channel Low Noise Charge Pump White LED Driver |
| CAT3606HV4 | 6-Channel Low Noise Charge Pump White LED Driver |
| CAT3612 | Programmable 300mA Camera Flash LED Driver |
| CAT3612HV2-T2 | Programmable 300mA Camera Flash LED Driver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT3604_08 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:4-Channel Regulated Charge Pump White LED Driver |
| CAT3604A | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:4-Channel Regulated Charge Pump White LED Driver |
| CAT3604-A | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:Catalyst Semiconductor |
| CAT3604AHV4-T2 | 功能描述:LED照明驅動器 LED DR CHARGE PUMP 4 CH 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 |
| CAT3604HS4-TE13 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
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