Datasheet > TPS92381

TPS92381

更新时间： 2024-11-22 02:52:07

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
39页	1796K
描述
TPS92380, TPS92381 45-V LED Backlight Driver with 3-, 4- Channels

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

TPS92381 数据手册

TPS92380, TPS92381

SNVSBZ6 – MAY 2021

TPS92380, TPS92381 45-V LED Backlight Driver with 3-, 4- Channels

1 Features

2 Applications

•

3-, 4-Channel 120-mA current sinks

– High dimming ratio of 10 000:1 at 100 Hz

– Current matching 1% (typical)

– LED String current up to 120 mA per channel

– Outputs can be combined externally for higher

current per string

Integrated boost and SEPIC converter for LED

string power

– Input voltage operating range 4.5 V to 40 V

– Output voltage up to 45 V

•

Industrial Backlight for medium-size panel

Consumer Backlight for medium-size panel

Industrial Illumination for LED panel

3 Description

The TPS92380, TPS92381 is a highly-integrated,

high output power, easy-to-use LED driver with DC-

DC converter. The DC-DC converter supports both

boost and SEPIC mode operation. The device has

four or three high-precision current sinks that can be

combined for higher current capability.

•

– Integrated 3.3-A switch FET

– Switching frequency 300 kHz to 2.2 MHz

– Switching synchronization input

– Spread spectrum for lower EMI

Fault detection and protection

The DC-DC converter has adaptive output voltage

control based on the LED forward voltages.

This feature minimizes the power consumption by

adjusting the voltage to the lowest sufficient level

in all conditions. For EMI reduction DC-DC supports

spread spectrum for switching frequency and an

external synchronization with dedicated pin. A wide-

range adjustable frequency allows the TPS9238x to

avoid disturbance for sensitive frequency band.

•

– Fault output

– Input voltage OVP, UVLO and OCP

– Boost block SW OVP and output OVP

– LED open and short fault detection

– Thermal shutdown

The input voltage range for the TPS9238x is from 4.5

V to 40 V . The TPS9238x integrates extensive fault

detection features.

Device Information⁽¹⁾

PART NUMBER

TPS92380

PACKAGE

BODY SIZE (NOM)

HTSSOP (20)

6.50 mm × 4.40 mm

TPS92381

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

V_IN

5...28 V

100

Up to 45V

C_OUT

C_IN

VIN

C_LDO

OUT1

LDO

TPS92381

OUT2

OUT3

R_FSET

V_IN= 16V

V_IN= 12V

FSET

V_IN= 8V

V_IN= 6V

SYNC

PWM

OUT4

ISET

BRIGHTNESS

160

240 320

Output Current (mA)

400

480

VDDIO/EN

FAULT

VDDIO/EN

FAULT

D000

LED Backlight Efficiency

VDDIO/EN

PGND GND PAD

R_ISET

Simplified Schematic

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...39

中文翻译

下载PDF

与TPS92381相关器件

型号	品牌	获取价格	描述	数据表
TPS92381PWPR	TI	获取价格	TPS92380, TPS92381 45-V LED Backlight Driver with 3-, 4- Channels
TPS92390	TI	获取价格	具有 4 个 200mA 通道的升压/SEPIC 高调光性能 LED 驱动器
TPS92390RHBR	TI	获取价格	具有 4 个 200mA 通道的升压/SEPIC 高调光性能 LED 驱动器 \| RHB
TPS92391	TI	获取价格	具有 6 个 200mA 通道的升压/SEPIC 高调光性能 LED 驱动器
TPS92391RHBR	TI	获取价格	具有 6 个 200mA 通道的升压/SEPIC 高调光性能 LED 驱动器 \| RHB
TPS92410	TI	获取价格	用于离线 LED 驱动器的开关控制型、直接驱动、线性控制器
TPS92410D	TI	获取价格	用于离线 LED 驱动器的开关控制型、直接驱动、线性控制器 \| D \| 13 \| -40
TPS92410DR	TI	获取价格	用于离线 LED 驱动器的开关控制型、直接驱动、线性控制器 \| D \| 13 \| -40
TPS92411	TI	获取价格	适用于 LED 离线交流线性直接驱动的浮动开关，具有低纹波电流
TPS92411DBVR	TI	获取价格	适用于 LED 离线交流线性直接驱动的浮动开关，具有低纹波电流 \| DBV \| 5 \| -

与TPS92381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

28
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

21
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

50
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

48

产品中心

服务支持

精选活动

关于我们

帮助中心

TPS92381

TPS92381 数据手册

与TPS92381相关器件

与TPS92381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

TPS92381

TPS92381 数据手册

与TPS92381相关器件

与TPS92381相关文章

您还可以找

您在本页遇到什么问题？