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參數資料
| 型號： | CAT4004 |
| 英文描述： | 4-Channel Constant Current LED Driver with EZDi TM |
| 中文描述： | 4通道恒定電流LED驅動EZDi商標 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 276K |
| 代理商： | CAT4004 |
CAT4004
2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 5024 Rev. A
FEATURES
Four LED current sinks with tight matching
Low Dropout Driver 130mV at 30mA
No switching noise
Shutdown current < 1
μ
A
LED current set by external resistor
Dimming via 1-wire EZDim
TM
interface
Thermal shutdown protection
RoHS Compliant
8-lead 2mm x 3mm TDFN package
APPLICATIONS
LCD Display Backlight
Cellular Phones
Digital Still Cameras
Handheld Devices
ORDERING INFORMATION
Part
Number
Package
Package
Marking
CAT4004VP2-T
3
TDFN-8
2x3mm
(1)
FT
Notes:
(1) Lead finish Matte-Tin
(2) Quantity per reel is 3000
DESCRIPTION
The CAT4004 provides four matched low dropout current
sources to drive LEDs. An external resistor on RSET sets
the current in the LED channels. Each LED channel
includes an individual control loop allowing the device to
handle a wide range of LED forward voltages while still
maintaining tight current matching.
The EN/DIM logic inputs supports device enable and a
digital dimming interface for current setting of all LEDs.
Six different current dimming ratios are available.
The device is aimed at “direct drive” battery applications.
It is required that the battery or voltage source have
enough headroom to drive the LED forward voltage and
current sink (>150mV).
The device is available in a tiny 8-lead TDFN 2mm x 3mm
package with a max height of 0.8mm.
For Ordering Information details, see page 10.
PIN CONFIGURATION
TYPICAL APPLICATION CIRCUIT
8-lead TDFN Package
(Top View)
EN/DIM
1
GND
2
LED1
3
LED2
4
8
VIN
7
RSET
CAT4004
6
LED4
5
LED3
4-Channel Constant Current LED Driver with EZDim
CAT4004
VIN
EN/DIM
RSET
GND
LED1 LED2 LED3 LED4
RSET
3.8k
One wire
programming
20mA
V
IN
1μF
2.4V
to
5.5V
C
IN
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT4004_08 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:4-Channel Constant Current LED Driver with EZDim⑩ |
| CAT4004A | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Constant Current LED Driver with 32 Dimming Levels and Rset |
| CAT4004AHU2-GT3 | 功能描述:LED照明驅動器 LED DR 4 CH EZ DIM I/F 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 |
| CAT4004AHU2-GT3B | 功能描述:LED照明驅動器 322.4V to 5.5V 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 |
| CAT4004BHU2-GT3 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Constant Current Programmable LED Driver with 32 Dimming Levels |
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