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參數資料
| 型號： | CAT3626HS4-T2 |
| 英文描述： | 6-Channel LED Driver with I2C Interface |
| 中文描述： | 6通道LED驅動器，帶有I2C接口 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 807K |
| 代理商： | CAT3626HS4-T2 |
6-Channel LED Driver with I
2
C Interface
CAT3626
2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 3022 Rev. A
FEATURES
Drives 6 LED channels
Independent current on 3 pairs of LEDs
I
2
C serial interface programming
Adjustable current to 32mA in 0.5mA step
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
APPLICATION
RGB LEDs
LCD and keypad Backlighting
Cellular Phones, PDAs
Digital Cameras
ORDERING INFORMATION
Part Number
Package
Quantity
per Reel
2000
2000
Package
Marking
C626
G626
CAT3626HS4-T2 Thin QFN-16
CAT3626HV4-T2 Thin QFN-16
Green*
Note *:
Matte Tin Lead Finish
PRODUCT DESCRIPTION
The CAT3626 is a high efficiency 1x/1.5x fractional
charge pump with programmable dimming current in
six 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 LED channels are configured into three
independent pairs, each containing 2 matched
channels. Each pair can be separately programmed
from zero to 32mA, in 0.5mA resolution steps, using
the I
2
C serial interface. Any individual channel can
be disabled while others remain active. When the
enable input (EN) is low, the device is in shutdown
mode drawing zero current.
The device is available in a 16-lead thin QFN
package with a max height of 0.8mm.
PIN CONFIGURATION
TYPICAL APPLICATION CIRCUIT
QFN 16-lead 4x4mm
(Top View)
I
2
C is a trademark of Philips Electronics N.V.
相關PDF資料 |
PDF描述 |
|---|---|
| CAT3626HV4-T2 | 6-Channel LED Driver with I2C Interface |
| CAT3636_07 | 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636HV3-T2 | 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636 | 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636HV32 | 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT3626HV4 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT3626HV4G | 制造商:Catalyst Semiconductor 功能描述: |
| CAT3626HV4-GT2 | 功能描述:LED照明驅動器 LED DR CH PUMP 6 CH I2C 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 |
| CAT3626HV4-GT3 | 功能描述:LED照明驅動器 LED Driver,Char pump,6 ch I2C 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 |
| CAT3626HV4-T2 | 功能描述:LED照明驅動器 6-Ch LED Driver 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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