Datasheet > CAT3648HV3-GT2

CAT3648HV3-GT2

更新时间： 2024-02-09 17:08:49

品牌	Logo	应用领域
CATALYST		驱动器
页数	文件大小	规格书
14页	336K
描述
4-Channel Ultra High Efficiency Quad-Mode⑩ LED Driver with 32 Dimming Levels

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技术参数
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CAT3648HV3-GT2 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	3 X 3 MM, 0.80 MM HEIGHT, HELOGEN FREE AND ROHS COMPLIANT, MO-220, TQFN-16	针数：	16
Reach Compliance Code：	unknown	风险等级：	5.74
数据输入模式：	SERIAL	接口集成电路类型：	LED DISPLAY DRIVER
JESD-30 代码：	S-XQCC-N16	JESD-609代码：	e4
长度：	3 mm	湿度敏感等级：	NOT SPECIFIED
复用显示功能：	NO	功能数量：	1
区段数：	4	端子数量：	16
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED	封装代码：	HVQCCN
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	认证状态：	COMMERCIAL
座面最大高度：	0.8 mm	最大供电电压：	5.5 V
最小供电电压：	2.5 V	标称供电电压：	3.6 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	NICKEL PALLADIUM GOLD	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	40	宽度：	3 mm
Base Number Matches：	1

CAT3648HV3-GT2 数据手册

CAT3648

4-Channel Ultra High Efficiency Quad-Mode™

LED Driver with 32 Dimming Levels

FEATURES

DESCRIPTION

The CAT3648 is a high efficiency quad-mode

fractional charge pump that can drive up to four 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 tradi–

tional 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 4 LEDs at 25mA each

1-wire EZDim™ 32 linear steps

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

3mm x 3mm, 16-pad TQFN package

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

a digital dimming interface for setting the current in all

LED channels. The 1-wire pulse-dimming interface

supports 32 linear steps from full-scale down to zero

current.

APPLICATION

LCD Display Backlight

Cellular Phones

Digital Still Cameras

Handheld Devices

The device is available in the tiny 16-pad TQFN

3mm x 3mm package with a max height of 0.8mm.

Catalyst Semiconductor’s Quad-Mode™ 1.33x,

charge pump switching architecture is patented.

ORDERING INFORMATION

Part Number

Qty per Reel

Marking

2000 ⁽¹⁾

JAAN

CAT3648HV3-GT2

Notes: (1) NiPdAu Plated Finish (RoHS-compliant)

PIN CONFIGURATION

TYPICAL APPLICATION CIRCUIT

1µF

(Top View)

C1+

VIN

C1- C2+

C2-

OUT

VOUT

CIN

1µF

2.4V

5.5V

OUT

1µF

CAT3648

LED1

LED2

LED3

LED4

1-Wire

EZDim^TM

Programming

EN/DIM

RSET

20mA

3.74kΩ

GND

Characteristics subject to change without notice

Doc. No. MD-5031, Rev. A

12 3 4 5 6 7...14

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