Datasheet > CAT3636

CAT3636

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
CATALYST		驱动器
页数	文件大小	规格书
15页	436K
描述
6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3

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CAT3636 数据手册

CAT3636

6-Channel Quad-Mode^TMFractional LED Driver in TQFN3x3

FEATURES

DESCRIPTION

High efficiency 1.33x charge pump

The CAT3636 is a high efficiency quad-mode fractional

charge pump that can drive up to six LEDs

programmable by a one wire digital interface. The

inclusion of a 1.33x fractional charge pump mode

increases device efficiency by up to 10% over traditional

1.5x charge pumps with no added external capacitors.

Quad-mode charge pump: 1x, 1.33x, 1.5x, 2x

Drives up to 6 LEDs at 32mA each

1-wire EZDim^TMLED current programming

Power efficiency up to 92%

Low noise input ripple in all modes

“Zero” current shutdown mode

Soft start and current limiting

Low noise input ripple is achieved by operating at a

constant switching frequency which allows the use of

small external ceramic capacitors. The multi-fractional

charge pump supports a wide range of input voltages

from 2.5V to 5.5V.

Short circuit protection

Thermal shutdown protection

Tiny 3mm x 3mm, 16-lead TQFN package

The EN/SET logic input functions as a chip enable and a

“1-wire” addressable interface for control and current

setting of all LEDs. Three groups of two LEDs can be

configured with independent LED currents between

0.25mA and 32mA.

APPLICATIONS

LCD Display Backlight

Color RGB LEDs

Cellular Phones

Digital Still Cameras

Handheld Devices

The device is available in a tiny 16-lead TQFN 3mm x

3mm package with a max height of 0.8mm.

The 1.33x charge pump with two fly capacitors is a

patent pending architecture exclusive to Catalyst

Semiconductor.

ORDERING INFORMATION

Part

Quantity

per Reel

Package

Marking

Package

Number

CAT3636 TQFN-16

HV3-T2 3x3 Green

2000

JAAA

* Matte Tin Lead Finish

For Ordering Information details, see page 14.

PIN CONFIGURATION

TYPICAL APPLICATION CIRCUIT

Characteristics subject to change without notice

Doc. No. 5020 Rev. A

12 3 4 5 6 7...15

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CAT3636_07	CATALYST	6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3	获取价格
CAT3636_08	CATALYST	6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3	获取价格
CAT3636HV32	CATALYST	6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3	获取价格
CAT3636HV3-GT2	ONSEMI	6-Channel Quad-Mode Fractional LED Driver in TQFN 3x3	获取价格
CAT3636HV3T	CATALYST	6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3	获取价格
CAT3636HV3-T2	CATALYST	6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3	获取价格