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TLC5926IDBQRG4 PDF预览

TLC5926IDBQRG4

更新时间: 2024-11-27 06:01:47
品牌 Logo 应用领域
德州仪器 - TI 显示驱动器驱动程序和接口接口集成电路光电二极管
页数 文件大小 规格书
31页 886K
描述
16-CHANNEL CONSTANT-CURRENT LED SINK DRIVERS

TLC5926IDBQRG4 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SSOP
包装说明:GREEN, PLASTIC, SSOP-24针数:24
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.64
Is Samacsys:N数据输入模式:SERIAL
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:R-PDSO-G24
JESD-609代码:e4长度:8.65 mm
湿度敏感等级:2复用显示功能:NO
功能数量:1区段数:16
端子数量:24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:SSOP封装等效代码:SSOP24,.24
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):260电源:3.3/5 V
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Display Drivers最大供电电压:5.5 V
最小供电电压:3 V标称供电电压:3.3 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:GULL WING
端子节距:0.635 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
最小 fmax:30 MHzBase Number Matches:1

TLC5926IDBQRG4 数据手册

 浏览型号TLC5926IDBQRG4的Datasheet PDF文件第2页浏览型号TLC5926IDBQRG4的Datasheet PDF文件第3页浏览型号TLC5926IDBQRG4的Datasheet PDF文件第4页浏览型号TLC5926IDBQRG4的Datasheet PDF文件第5页浏览型号TLC5926IDBQRG4的Datasheet PDF文件第6页浏览型号TLC5926IDBQRG4的Datasheet PDF文件第7页 
TLC5926, TLC5927  
www.ti.com ....................................................................................................................................................................................................... SLVS677JULY 2008  
16-CHANNEL CONSTANT-CURRENT LED SINK DRIVERS  
1
FEATURES  
2
16 Constant-Current Output Channels  
30-MHz Clock Frequency  
Schmitt-Trigger Input  
Output Current Adjusted By External Resistor  
Constant Output Current Range: 5 mA to  
120 mA  
3.3-V or 5-V Supply Voltage  
Thermal Shutdown for Overtemperature  
Protection  
Constant Output Current Invariant to Load  
Voltage Change  
ESD Performance: 2-kV HBM  
Open-Load, Shorted-Load and  
Overtemperature Detection  
APPLICATIONS  
General LED Lighting Applications  
LED Display Systems  
LED Signage  
Automotive LED Lighting  
White Goods  
256-Step Programmable Global Current Gain  
Excellent Output-Current Accuracy:  
Between Channels: < ±6% (Max),  
10 mA to 50 mA  
Between ICs: < ±6% (Max), 10 mA to 50 mA  
DESCRIPTION/ORDERING INFORMATION  
The TLC5926/TLC5927 is designed for LED displays and LED lighting applications with open-load, shorted-load,  
and overtemperature detection, and constant-current control. The TLC5926/TLC5927 contains a 16-bit shift  
register and data latches, which convert serial input data into parallel output format. At the TLC5926/TLC5927  
output stage, 16 regulated-current ports provide uniform and constant current for driving LEDs within a wide  
range of VF (Forward Voltage) variations. Used in systems designed for LED display applications (e.g., LED  
panels), TLC5926/TLC5927 provides great flexibility and device performance. Users can adjust the output  
current from 5 mA to 120 mA through an external resistor, Rext, which gives flexibility in controlling the light  
intensity of LEDs. TLC5926/TLC5927 is designed for up to 17 V at the output port. The high clock frequency, 30  
MHz, also satisfies the system requirements of high-volume data transmission.  
The TLC5926/TLC5927 provides a Special Mode in which two functions are included, Error Detection and  
Current Gain Control. In the TLC5926/TLC5927 there are two operation modes and three phases: Normal Mode  
phase, Mode Switching transition phase, and Special mode phase. The signal on the multiple-function pin  
OE(ED2) is monitored, and when an one-clock-wide short pulse appears on OE(ED2), TLC5926/TLC5927 enters  
the Mode Switching phase. At this time, the voltage level on LE(ED1) determines the next mode into which the  
TLC5926/TLC5927 switches.  
In the Normal Mode phase, the serial data is transferred into TLC5926/TLC5927 via SDI, shifted in the shift  
register, and transferred out via SDO. LE(ED1) can latch the serial data in the shift register to the output latch.  
OE(ED2) enables the output drivers to sink current.  
In the Special Mode phase, the low-voltage-level signal OE(ED2) can enable output channels and detect the  
status of the output current, to tell if the driving current level is enough or not. The detected error status is loaded  
into the 16-bit shift register and shifted out via SDO, along with the CLK signal. The system controller can read  
the error status to determine whether or not the LEDs are properly lit. In the Special Mode phase,  
TLC5926/TLC5927 also allows users to adjust the output current level by setting a runtime-programmable  
Configuration Code. The code is sent into TLC5926/TLC5927 via SDI. The positive pulse of LE(ED1) latches the  
code in the shift register into a built-in 8-bit configuration latch, instead of the output latch. The code affects the  
voltage at R-EXT and controls the output-current regulator. The output current can be adjusted finely by a gain  
ranging from 1/12 to 127/128 in 256 steps. Therefore, the current skew between ICs can be compensated within  
less than 1%, and this feature is suitable for white balancing in LED color-display panels.  
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.  
2
PowerPAD is a trademark of Texas Instruments.  
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 © 2008, Texas Instruments Incorporated  

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