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TPS61195RUYR

更新时间： 2024-11-15 05:52:59
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德州仪器 - TI 显示驱动器驱动程序和接口接口集成电路
页数 文件大小 规格书
27页 721K
描述
TPS61195 WLED Driver for LCD Backlighting With PWM and SMBus Control Interface

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TPS61195RUYR 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：4 X 4 MM, GREEN, PLASTIC, WQFN-28针数：28
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：12 weeks
风险等级：5.67Is Samacsys：N
数据输入模式：SERIAL输入特性：STANDARD
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-PQCC-N28
JESD-609代码：e4长度：4 mm
湿度敏感等级：2复用显示功能：NO
功能数量：1区段数：96
端子数量：28最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC28,.16SQ,16
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电源：12 V
认证状态：Not Qualified座面最大高度：0.8 mm
子类别：Display Drivers最大压摆率：3 mA
最大供电电压：21 V最小供电电压：4.5 V
标称供电电压：12 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：NO LEAD端子节距：0.4 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4 mm最小 fmax：0.02 MHz
Base Number Matches：1

TPS61195RUYR 数据手册

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TPS61195  
www.ti.com  
SLVSA07 –MAY 2010  
TPS61195 WLED Driver for LCD Backlighting With PWM and SMBus Control Interface  
Check for Samples: TPS61195  
1
FEATURES  
•
•
•
•
•
•
PWM and SMBus Brightness Interface  
8-bits (256 steps) Brightness Level  
Programmable Over Voltage Threshold  
Built-in WLED Open/Short Protection  
Over Thermal Protection  
•
•
•
4.5V to 21V Input Voltage  
Integrated 2.5A 50V MOSFET  
600kHz to 1MHz Programmable Switching  
Frequency  
•
•
•
•
•
•
Adaptive Boost Output for Best Efficiency  
Designed to Use Small L-C Components  
Internal Loop Compensation  
28L 4×4 QFN  
APPLICATIONS  
•
Notebook/Netbook LCD Display Backlighting  
Eight Current Sinks of 30mA  
Support up to Total 96 LEDs  
1% Current Matching  
DESCRIPTION  
The TPS61195 IC provides highly integrated solutions for large-size LCD backlighting. This device has a built-in  
high efficiency boost regulator with integrated 2.5A/50V power MOSFET. The eight current sink regulators  
provide high precision current regulation and matching. In total, the device can support up to 96 LEDs. Unused  
sinks are disabled by tying them to ground. The boost output automatically adjusts its voltage to the WLED  
forward voltage to improve efficiency.  
The TPS61195 supports multiple brightness dimming methods. During PWM dimming, each IFB pin’s current is  
turned on/off at the duty cycle and frequency determined by an integrated pulse width modulation (PWM). The  
frequency of this signal is resistor programmable, while the duty cycle is controlled directly either from an  
external PWM signal input to the DPWM pin or through the SMBUS interface. Additionally, the SMBUS interface  
provides some operational reporting data such as if one or more strings have failed or if the IC is over-heating. In  
direct PWM dimming mode, each IFB current is turned on/off at same duty cycle and frequency as the PWM  
signal input on the DPWM pin. In analog dimming mode, the input PWM duty cycle information is translated to  
analog signal to control the WLED current signal linearly over 1% to 100% brightness area.  
The TPS61195 integrates over-current and short-circuit protection, soft start and over temperature protection  
circuit. The device also provides programmable output over-voltage protection, and the threshold is adjusted by  
external resistor divider combination.  
The TPS61195 IC has built-in linear regulator for the IC supply. The device is in a 4x4 mm QFN package.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2010, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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TPS61195RUYR 替代型号

型号 品牌 替代类型 描述 数据表
TPS61195RUYT TI

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 TPS61195 WLED Driver for LCD Backlighting With PWM and SMBus Control Interface

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