Datasheet > CAT3649_14

CAT3649_14

更新时间： 2024-11-26 01:16:11

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
13页	303K
描述
6-Channel LED Driver with 32 Dimming Levels & PWM

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

CAT3649_14 数据手册

CAT3649

6-Channel LED Driver with

32 Dimming Levels & PWM

Description

The CAT3649 is a high efficiency fractional charge pump that can

drive up to six LEDs. The inclusion of a 1.33x fractional charge pump

mode increases the device efficiency by up to 10% over traditional

1.5x charge pumps with no added external capacitors.

http://onsemi.com

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 2.4 V to 5.5 V.

The LED current can be adjusted in different ways. The full−scale LED

current is set to 25 mA once the device is enabled. Analog dimming in

32 linear steps is achieved via a 1−wire pulse−dimming input (ADIM).

Further adjustment of the LED current can be done by applying a pulse

width modulation (PWM) signal on the PWM input. The PWM

dimming control is compatible with content adaptive brightness control

(CABC) for a wide range of PWM signal frequency up to 200 kHz.

The CAT3649 can be shut down by holding the ADIM or PWM

input in a logic low condition for greater than 30 ms.

TQFN−16

HV3 SUFFIX

CASE 510AD

PIN CONNECTIONS

ADIM

LED6

LED5

LED4

C1+

C1−

C2+

C2−

ON Semiconductor’s 1.33x charge pump switching architecture is

patented.

Features

• High Efficiency 1.33x Charge Pump

• Charge Pump: 1x, 1.33x, 1.5x, 2x

• Drives up to 6 LEDs at 25 mA Each

• PWM Dimming 100 Hz to 200 kHz for CABC

• 1−wire EZDim 32 Linear Steps (ADIM)

• Power Efficiency up to 92%

(Top View)

MARKING DIAGRAM

• Low Noise Input Ripple in All Modes

• “Zero” Current Shutdown Mode

• Soft Start and Current Limiting

• Short Circuit Protection

JABA

AXXX

YWW

• Thermal Shutdown Protection

JABA = CAT3649HV3−GT2

A = Assembly Location

XXX = Last Three Digits of Assembly Lot Number

Y = Production Year (Last Digit)

WW = Production Week (Two Digits)

• 3 mm x 3 mm, 16−pad TQFN Package

• This Device is Pb−Free, Halogen Free/BFR Free and is RoHS

Compliant

Typical Applications (Note 1)

ORDERING INFORMATION

• LCD Display Backlight

• Cellular Phones

†

Device

Package

Shipping

• Digital Still Cameras

CAT3649HV3−GT2

TQFN−16

(Pb−Free)

2000 /

Tape & Reel

• Handheld Devices

1. Typical application circuit with external components is shown in Figure 1.

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

Publication Order Number:

August, 2014 − Rev. 3

CAT3649/D

12 3 4 5 6 7...13

中文翻译

下载PDF

与CAT3649_14相关器件

型号	品牌	获取价格	描述	数据表
CAT3649HV3-GT2	ONSEMI	获取价格	6-Channel LED Driver with 32 Dimming Levels & PWM
CAT3661	ONSEMI	获取价格	1-Channel Low-Power LED Driver
CAT3661HV3-GT2	ONSEMI	获取价格	1-Channel Low-Power LED Driver
CAT37	TI	获取价格	CMOS White LED Driver Boost Converter
CAT37	ONSEMI	获取价格	CMOS White LED Driver Boost Converter
CAT37	CATALYST	获取价格	CMOS White LED Driver Boost Converter
CAT37_05	CATALYST	获取价格	CMOS White LED Driver Boost Converter
CAT37_08	TI	获取价格	CMOS White LED Driver Boost Converter
CAT-3-75	MINI	获取价格	Fixed Attenuator, 0MHz Min, 500MHz Max, CASE FF55
CAT37EKK	ONSEMI	获取价格	LED DISPLAY DRIVER, PDSO5, SOT-23, 5 PIN

与CAT3649_14相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

40
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

32
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

60
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

56

产品中心

服务支持

精选活动

关于我们

帮助中心

CAT3649_14

CAT3649_14 数据手册

与CAT3649_14相关器件

与CAT3649_14相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

CAT3649_14

CAT3649_14 数据手册

与CAT3649_14相关器件

与CAT3649_14相关文章

您还可以找

您在本页遇到什么问题？