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參數(shù)資料
| 型號： | CAT3626HV4-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(shù)： | 1/14頁 |
| 文件大?。?/td> | 807K |
| 代理商： | CAT3626HV4-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 |
|---|---|
| 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 |
| CAT3636HV3T | 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CAT3636 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:6-Channel Quad-Mode Fractional LED Driver in TQFN 3x3 |
| CAT3636_07 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636_08 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636HV3 | 制造商:ON Semiconductor 功能描述:IC 6-LED DRIVER QUAD HI EFFICIENCY |
| CAT3636HV32 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
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