TLC5947 24-Channel, 12-Bit PWM LED Driver with Internal Oscillator
TLC5947 描述
The TLC5947 is a 24-channel, constant current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps. PWM control is repeated automatically with the programmed grayscale (GS) data. GS data are written via a serial interface port. The current value of all 24 channels is set by a single external resistor.
The TLC5947 has a thermal shutdown (TSD) function that turns off all output drivers during an over-temperature condition. All of the output drivers automatically restart when the temperature returns to normal conditions
|
TLC5947 |
TLC5951 |
TLC5952 |
| Output Channels |
24 |
24 |
24 |
| Per Channel Drive(mA) |
30 |
40 |
35 |
| Ch to Ch Accuracy(Typ)(+/- %) |
2 |
1.5 |
1.0 |
| Data Transfer Rate(Typ)(MHz) |
30 |
30 |
35 |
| Data Vin(Min)(V) |
3.0 |
3.0 |
3.0 |
| Data Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
| LED Voltage(Max)(V) |
30 |
15 |
15 |
| Pin/Package |
32HTSSOP, 32QFN |
38HTSSOP, 40VQFN |
32HTSSOP |
| Approx. Price (US$) |
1.20 | 1ku |
3.00 | 1ku |
2.20 | 1ku |
TLC5947 特性
- 24 Channels, Constant Current Sink Output
- 30-mA Capability (Constant Current Sink)
- 12-Bit (4096 Steps) PWM Grayscale Control
- LED Power-Supply Voltage up to 30 V
- VCC = 3.0 V to 5.5 V
- Constant Current Accuracy:
- Channel-to-Channel = ±2% (typ)
- Device-to-Device = ±2% (typ)
- CMOS Logic Level I/O
- 30-MHz Data Transfer Rate (Standalone)
- 15-MHz Data Transfer Rate (Cascaded Devices, SCLK Duty = 50%)
- Shift Out Data Changes With Falling Edge to Avoid Data Shift Errors
- Auto Display Repeat
- 4-MHz Internal Oscillator
- Thermal Shutdown (TSD):
- Automatic shutdown at over temperature conditions
- Restart under normal temperature
- noise Reduction:
- 4-channel grouped delay to prevent inrush current
- Operating Temperature: -40°C to +85°C
TLC5947 芯片订购指南
| 器件 |
状态 |
|
价格（美元） | Quantity |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TLC5947DAP |
ACTIVE |
-40 to 85 |
1.45 | 1ku |
HTSSOP (DAP) | 32 |
46 | TUBE |
|
| TLC5947DAPG4 |
ACTIVE |
-40 to 85 |
1.45 | 1ku |
HTSSOP (DAP) | 32 |
46 | TUBE |
|
| TLC5947DAPR |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
HTSSOP (DAP) | 32 |
2000 | LARGE T&R |
|
| TLC5947DAPRG4 |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
HTSSOP (DAP) | 32 |
2000 | LARGE T&R |
|
| TLC5947RHBR |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
|
| TLC5947RHBRG4 |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
|
| TLC5947RHBT |
ACTIVE |
-40 to 85 |
1.60 | 1ku |
QFN (RHB) | 32 |
250 | SMALL T&R |
|
| TLC5947RHBTG4 |
ACTIVE |
-40 to 85 |
1.60 | 1ku |
QFN (RHB) | 32 |
250 | SMALL T&R |
|
TLC5947 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TLC5947DAP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TLC5947DAP |
TLC5947DAP |
| TLC5947DAPG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TLC5947DAPG4 |
TLC5947DAPG4 |
| TLC5947DAPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TLC5947DAPR |
TLC5947DAPR |
| TLC5947DAPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TLC5947DAPRG4 |
TLC5947DAPRG4 |
| TLC5947RHBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5947RHBR |
TLC5947RHBR |
| TLC5947RHBRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5947RHBRG4 |
TLC5947RHBRG4 |
| TLC5947RHBT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5947RHBT |
TLC5947RHBT |
| TLC5947RHBTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5947RHBTG4 |
TLC5947RHBTG4 |
TLC5947 应用技术支持与电子电路设计开发资源下载
- TLC5947 数据资料 dataSheet 下载.PDF
- TI 德州仪器照明解决方案产品选型与价格 . xls
- 照明和显示屏电源选择指南 (PDF 1427 KB)
- 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- PowerPAD™ Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
TLC5947 相关工具
