TPS92551

更新时间： 2024-01-08 12:39:53

品牌	Logo	应用领域
德州仪器 - TI		驱动器
页数	文件大小	规格书
21页	1258K
描述
450mA 23W Constant Current Buck LED Driver Micro-Module

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技术参数
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TPS92551 技术参数

生命周期：	Obsolete	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.19	接口集成电路类型：	LED DISPLAY DRIVER
Base Number Matches：	1

TPS92551 数据手册

May 17, 2012

TPS92551

450mA 23W Constant Current Buck LED Driver Micro-

Module

General Description

Package Highlights

The TPS92551 Constant Current Buck LED Driver Micro-

Module drives maximum 450mA LED current up to 16 LEDs

in a single string (maximum 23W). It integrates all the power

components including the power inductor. The TPS92551

provides a full turn-key, highly efficient solution for wide range

of single string LED lighting applications with up to 95% power

efficiency. It accepts an input voltage ranging from 4.5V to

60V and delivers a 350mA LED current as default. The LED

current is adjustable from 300mA to 450mA by charging a

single external resistor.

7 lead easy-to-use package (Similar to TO-263)

■

Single exposed die attach pad for enhanced thermal

performance

10.2 x 13.8 x 4.6 mm package

■

Applications

General Lighting

Desk Lamps

■

Cabinet Lamps

Decorative Lamps

Street Lamps

The module operates at constant switching frequency

(800kHz) with low Electro Magnetic Interference(EMI) com-

plying with EN55015 standard. The module has fast control

loop to realize fine LED current pulse yielding 256–step PWM

dimming resolution at 240Hz for general lighting. Protection

features include thermal shutdown, input under-voltage lock-

out, LED open-circuit and short-circuit protections. The

TPS92551 Micro-Module is available in TO-PMOD 7 pin pow-

er package.

Architecture Lighting

Recess Lights

Spot Lights

■

Underwater Lights

System Performance

Efficiency vs V_IN, I_LED= 350mA

Easy to Use 7 Pin Package

100

16LED

14LED

10LED

6LED

30172701

TO-PMOD 7 Pin Package

10.16 x 13.77 x 4.57 mm (0.4 x 0.39 x 0.18 in)

25 30 35 40 45 50 55 60

(V)

_JA= 20°C/W, θ_JC= 1.9°C/W (Note 1)

RoHS Compliant

30172750

Radiated Emissions (EN 55015)

Features

Integrated all power components including the power

inductor

■

Wide input voltage range : 4.5V - 60V

■

Constant switching frequency at 800kHz

High contrast ratio (Minimum dimming current pulse width

< 16µs)

30172731

Drives up to 16 LEDs in series at 60V input

■

LED Current with PWM Dimming

16us dimming pulse

±3.5% typical LED current accuracy

LED current adjustable from 300mA to 450mA

(200mA/DIV)

LED

Up to 95% efficiency

Input Under-Voltage Lock-Out (UVLO)

Compatible with ceramic and low ESR capacitors

Low Electro Magnetic Interference (EMI) complies with

EN55015 standard (Note 2)

(2V/DIV)

DIM

LED open and short circuit protections

■

Thermal shutdown and RoHS compliant

-40˚C to +125˚C junction temperature range

4 μs/DIV

30172742

301727 SNVS805A

www.ti.com

12 3 4 5 6 7...21

中文翻译

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与TPS92551相关器件

型号	品牌	获取价格	描述	数据表
TPS92551TZ	TI	获取价格	450mA 23W Constant Current Buck LED Driver Micro-Module
TPS92551TZ/NOPB	TI	获取价格	450mA 23W 恒流降压型 LED 驱动器微型模块 \| NDW \| 7 \| -40 t
TPS92551TZE	TI	获取价格	450mA 23W Constant Current Buck LED Driver Micro-Module
TPS92551TZX	TI	获取价格	450mA 23W Constant Current Buck LED Driver Micro-Module
TPS92551TZX/NOPB	TI	获取价格	450mA 23W 恒流降压型 LED 驱动器微型模块 \| NDW \| 7 \| -40 t
TPS92560	TI	获取价格	SIMPLE LED DRIVER FOR MR16 AND AR111 APPLICATIONS
TPS92560DGQ/NOPB	TI	获取价格	适用于 MR16 和 AR111 应用的简易 LED 驱动器 \| DGQ \| 10 \| -
TPS92560DGQR/NOPB	TI	获取价格	暂无描述
TPS92561	TI	获取价格	用于 LED 照明的相位可调光、单级升压控制器
TPS92561DGN	TI	获取价格	用于 LED 照明的相位可调光、单级升压控制器 \| DGN \| 8 \| -40 to 12

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