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TPS61187RTJR

更新时间: 2024-11-22 11:44:23
品牌 Logo 应用领域
德州仪器 - TI 驱动器电脑
页数 文件大小 规格书
25页 1600K
描述
WLED Driver for Notebooks with PWM Interface and Auto Phase Shift

TPS61187RTJR 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:HVQCCN, LCC20,.16SQ,20针数:20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:8 weeks
风险等级:0.97输入特性:STANDARD
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:S-PQCC-N20
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:60
端子数量:20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:LCC20,.16SQ,20
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:4 mA
最大供电电压:24 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:0.5 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:0.05 MHz

TPS61187RTJR 数据手册

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TPS61187  
www.ti.com  
SLVSA85D JUNE 2010REVISED FEBRUARY 2012  
WLED Driver for Notebooks with PWM Interface and Auto Phase Shift  
Check for Samples: TPS61187  
1
FEATURES  
DESCRIPTION  
The TPS61187 IC provides a highly integrated WLED  
driver solution for notebook LCD backlight. This  
device has a built-in high efficiency boost regulator  
with integrated 2.0A /40V power MOSFET. The six  
current sink regulators provide high precision current  
regulation and matching. In total, the device can  
support up to 60 WLEDs. In addition, the boost output  
automatically adjusts its voltage to the WLED forward  
voltage to optimize efficiency.  
4.5 V to 24 V Input Voltage  
38 V Maximum Output Voltage  
Integrated 2 A 40 V MOSFET  
300 kHz to 1 MHz Programmable Switching  
Frequency  
Adaptive Boost Output to WLED Voltages  
Wide PWM Dimming Frequency Range  
100 Hz to 50 KHz for Direct PWM Mode  
The TPS61187 supports the auto phase shift  
dimming method and direct PWM dimming method.  
During phase shift PWM dimming, the WLED current  
is turned on/off at the duty cycle controlled by the  
input PWM signal and each channel is shifted  
according to the frequency determined by an  
integrated pulse width modulation (PWM) signal. The  
frequency of this signal is resistor programmable,  
while the duty cycle is controlled directly from an  
external PWM signal input to the PWM pin. During  
direct PWM dimming, the WLED current is turned  
on/off synchronized with the input PWM signal.  
100 Hz to 22 KHz for Frequency  
Programmable Mode  
100:1 Dimming Ratio at 20 kHz  
10000:1 Dimming Ratio at 200 Hz (Direct PWM  
mode)  
Small External Components  
Integrated Loop Compensation  
Six Current Sinks of 30 mA Max  
1.5% (Typ) Current Matching  
PWM Brightness Interface Control  
L1  
10uH  
4.5V~24V  
D1  
PWM Phase Shift Mode Brightness Dimming  
Method or Direct PWM Dimming Method  
C3  
4.7uF  
R4  
R5  
C1  
2.2uF  
Open  
4 kV HBM ESD Protection  
VIN  
SW  
FAULT  
Programmable Over Voltage Threshold  
Built-in WLED Open/Short Protection  
Thermal Shutdown  
VDDIO  
PGND  
C2  
1.0 uF  
R7  
1.2 KW  
OVC  
EN  
20 Lead 4mm × 4mm × 0.8 mm TQFN Package  
FSLCT  
R3  
499 KW  
TPS61187  
R8  
10 KW  
APPLICATIONS  
19.8 mA  
PWM  
ISET  
IFB1  
IFB2  
IFB3  
IFB4  
IFB5  
IFB6  
VDD_GPIO  
Notebook LCD Display Backlight  
R1  
62 KW  
Open  
FPO  
RFPWM  
/MODE  
AGND  
R2  
9.09 KW  
Figure 1. Typical Application – Phase Shift PWM  
Mode  
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.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2010–2012, Texas Instruments Incorporated  
 

TPS61187RTJR 替代型号

型号 品牌 替代类型 描述 数据表
TPS61187RTJT TI

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WLED Driver for Notebooks with PWM Interface and Auto Phase Shift

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