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參數資料
| 型號： | CAT3614HV2-T2 |
| 英文描述： | 4-Channel 1-Wire LED Driver in 3x3mm Package |
| 中文描述： | 4通道的1 - Wire的LED 3x3mm的驅動程序包 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 462K |
| 代理商： | CAT3614HV2-T2 |
CAT3614
2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 25095, Rev. 01
4-Channel 1-Wire LED Driver in
3x3mm Package
FEATURES
Drives up to 4 LED channels
1-wire EZDim
TM
Programmable LED Current
Accurate 1mA Dimming Level
Power efficiency up to 91%
Fractional pump 1x/1.5x
Low noise input ripple
Fixed High Frequency Operation 1MHz
“Zero” Current Shutdown Mode
Soft start and current limiting
Short circuit protection
Thermal shutdown protection
12-lead TDFN 3mm x 3mm package
APPLICATIONS
LCD Display Backlight
Cellular Phones
Digital Still Cameras
Handheld Devices
DESCRIPTION
The CAT3614 is a high efficiency 1x/1.5x fractional
charge pump with programmable dimming current in
four LED channels. To ensure uniform brightness in
LCD backlight applications, each LED channel
delivers an accurate regulated current.
Low noise and input ripple is achieved by operating
at a constant switching frequency of 1MHz which
allows the use of small external ceramic capacitors.
The 1x/1.5x fractional charge pump supports a wide
range of input voltages from 3V to 5.5V with
efficiency up to 91%, and is ideal for Li-Ion battery
powered devices.
The EN/DIM logic input provides a 1-wire EZDim
TM
interface for dimming control of the LEDs. When
enabled, a series of clock pulses reduces the LED
brightness in 1mA steps on each negative going
edge. Currents from 0mA to 31mA are supported.
The device is available in the tiny 12-lead thin DFN
3mm x 3mm package with a max height of 0.8mm.
ORDERING INFORMATION
Part Number
CAT3614HS2-T2
CAT3614HV2-T2
Package
TDFN-12 3x3
TDFN-12 3x3 Green
Quantity
per Reel
2000
2000
Package
Marking
HAAB
HAAA
Pin Configuration
Top View
12-lead TDFN 3mm x 3mm
Typical Application Circuit
Note: Unused LED channels must be connected to
VOUT.
相關PDF資料 |
PDF描述 |
|---|---|
| CAT3643 | 3-Channel Ultra High Efficiency Quad-Mode TM LED Driver |
| CAT3643HL1-T2 | 3-Channel Ultra High Efficiency Quad-Mode TM LED Driver |
| CAT3643HV2-T2 | 3-Channel Ultra High Efficiency Quad-Mode TM LED Driver |
| CAT3643HV3-T2 | 3-Channel Ultra High Efficiency Quad-Mode TM LED Driver |
| CAT3644 | 4-Channel Ultra High Efficiency Quad-Mode TM LED Driver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT3616 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:6-Channel Charge Pump LED Driver with EZDim |
| CAT3616_08 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:6-Channel Charge Pump LED Driver with EZDimTM |
| CAT3616HV4 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:6-Channel Charge Pump LED Driver with EZDimTM |
| CAT3616HV4-GT2 | 功能描述:LED照明驅動器 LED Driver,Charge pump,6 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 |
| CAT3616HV4-T2 | 功能描述:LED照明驅動器 LED Driver,Charge pump,6 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 |
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