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| 型号： | TLC5945PWP |
| 厂商： | Texas Instruments |
| 文件页数： | 16/30页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 28-TSSOP |
| 标准包装： | 50 |
| 恒定电流： | 是 |
| 拓扑： | PWM |
| 输出数： | 16 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 颜色 |
| 频率： | 30MHz |
| 电源电压： | 3 V ~ 5.5 V |
| 输出电压： | 17V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 28-HTSSOP |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 296-34380-5 TLC5945PWP-ND |
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TLC5945
www.ti.com
SLVS755 – MARCH 2007
n = 0 to 15
Grayscale data for all OUTn
The input shift register enters grayscale data into the grayscale register for all channels simultaneously. The
complete grayscale data format consists of 16 x 12 bit words, which forms a 192-bit wide data packet (see
Figure 11 ). The data packet must be clocked in with the MSB first.
MSB
LSB
0
GS 15.11
11
GS 15.0
12
GS 14.11
179
GS 1.0
180
GS 0.11
191
GS 0.0
GS OUT15
GS OUT14 ? GS OUT1
GS OUT0
Figure 11. Grayscale Data Packet Format
When MODE is set to GND, the TLC5945 enters the grayscale data input mode. The device switches the input
shift register to 192-bit width. After all data is clocked in, a rising edge of the XLAT signal latches the data into
the grayscale register (see Figure 12 ). New grayscale data immediately becomes valid at the rising edge of the
XLAT signal; therefore, new grayscale data should be latched at the end of a grayscale cycle when BLANK is
high. The first GS data input cycle after dot correction requires an additional SCLK pulse after the XLAT signal
to complete the grayscale update cycle. All GS data in the input shift register is replaced with status information
data (SID) after updating the grayscale register.
MODE
DC Mode Data
Input Cycle
t h3
First GS Mode Data
Input Cycle After DC Data Input Cycle
t su3
Following GS Mode Data
Input Cycle
t h3
XLAT
t wh2
SIN
DC
LSB
t h2
t su2
GS
MSB
t su1
GS
LSB
t h1
GS + 1
MSB
GS n + 1
LSB
SCLK
96
1
192
193
1
192
t pd0
SOUT DC n
LSB
DC
MSB
X
X
GS
MSB
SID
MSB
SID
MSB?1
SID
LSB
SID n + 1
MSB
Figure 12. Grayscale Data Input Timing Chart
STATUS INFORMATION OUTPUT
The TLC5945 does have a status information register, which can be accessed in grayscale mode (MODE =
GND). After the XLAT signal latches the data into the GS register, the input shift register data is replaced with
status information data (SID) of the device (see Figure 12 ). LOD, TEF, and dot-correction register data can be
read out at the SOUT pin. The status information data packet is 192 bits wide. Bits 0 – 15 contain the LOD
status of each channel. Bit 16 contains the TEF status. Bits 24 – 119 contain the data of the dot-correction
register. The remaining bits are reserved. The complete status information data packet is shown in Figure 13 .
SOUT outputs the MSB of the SID at the same time the SID are stored in the SID register, as shown in
16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TLC5945PWP | 制造商:Texas Instruments 功能描述:LED Drivers |
| TLC5945PWPG4 | 功能描述:LED显示驱动器 16-Ch LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| TLC5945PWPR | 功能描述:LED显示驱动器 16-Ch LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| TLC5945PWPRG4 | 功能描述:LED显示驱动器 16-Ch LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| TLC5945RHB | 制造商:TI 制造商全称:Texas Instruments 功能描述:16-CHANNEL LED DRIVER WITH DOT CORRECTION AND GRAYSCALE PWM CONTROL |
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