Datasheet > CAT3636_08

CAT3636_08

更新时间： 2024-11-18 04:35:43

品牌	Logo	应用领域
CATALYST		驱动器
页数	文件大小	规格书
16页	344K
描述
6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3

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CAT3636_08 数据手册

CAT3636

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

FEATURES

DESCRIPTION

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.

High efficiency 1.33x charge pump

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

Short circuit protection

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.

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

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

3mm package with a max height of 0.8mm.

Digital Still Cameras

Handheld Devices

Catalyst Semiconductor’s Quad-Mode^TM1.33x charge

pump switching architecture is patented.

ORDERING INFORMATION

Quantity Package

Part Number

Package

per Reel Marking

For Ordering Information details, see page 15.

CAT3636HV3-T2 TQFN-16 ⁽¹⁾

CAT3636HV3-GT2 TQFN-16 ⁽²⁾

2000

JAAA

JAAR

Notes: (1) Matte-Tin Plated Finish (RoHS-compliant)

(2) NiPdAu Plated Finish (RoHS-compliant).

PIN CONFIGURATION

TYPICAL APPLICATION CIRCUIT

Characteristics subject to change without notice

Doc. No. MD-5020 Rev. D

12 3 4 5 6 7...16

中文翻译

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