TLC5945 带有点校正、灰度 PWM 控制和无延迟的 16 通道 LED 驱动器
TLC5945 描述
The TLC5945 is a 16-channel, constant-current sink, LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control and a 64-step constant-current sink (dot correction). The dot correction adjusts the brightness variations between LED channels and other LED drivers. Both grayscale control and dot correction are accessible via a serial interface. A single external resistor sets the maximum current value of all 16 channels.
The TLC5945 features two error information circuits. The LED open detection (LOD) indicates a broken or disconnected LED at an output terminal. The thermal error flag (TEF) indicates an overtemperature condition
|
TLC5940 |
TLC59401 |
TLC5941 |
TLC5942 |
TLC5943 |
TLC5944 |
TLC5945 |
TLC5946 |
TLC59461 |
| Output Channels |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
| PWM Dimming Steps |
4096 |
4096 |
4096 |
4096 |
65536 |
4096 |
4096 |
4096 |
4096 |
| Analog Dimming Steps |
64 |
64 |
64 |
64 |
128 |
64 |
64 |
64 |
64 |
| Per Channel Drive(mA) |
120 |
0~80mA(Vcc≤3.6V) ,0~120mA(Vcc>3.6V) |
80 |
50 |
50 |
60 |
80 |
40 |
40 |
| Ch to Ch Accuracy(Typ)(+/- %) |
1 |
1 |
1 |
1.5 |
1.5 |
1 |
1 |
1 |
1 |
| Data Input |
Serial |
Serial |
Serial |
Serial |
Serial |
Serial |
Serial |
Serial |
Serial |
| Data Transfer Rate(Typ)(MHz) |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
| Data Vin(Min)(V) |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
| Data Vin(Max)(V) |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
5.5 |
| LED Voltage(Max)(V) |
17 |
17 |
17 |
17 |
17 |
15 |
17 |
17 |
17 |
| Pin/Package |
28HTSSOP, 28PDIP, 32QFN |
28HTSSOP, 32QFN |
28HTSSOP, 28PDIP, 32QFN |
28HTSSOP, 32QFN |
28HTSSOP, 32QFN |
28HTSSOP, 32QFN |
28HTSSOP, 32QFN |
28HTSSOP, 28TSSOP, 32QFN |
28HTSSOP |
| Approx. Price (US$) |
1.25 | 1ku |
1.80 | 1ku |
1.00 | 1ku |
1.10 | 1ku |
1.25 | 1ku |
1.10 | 1ku |
1.10 | 1ku |
1.00 | 1ku |
1.05 | 1ku |
TLC5945 特性
- 16Channels
- 12-bit (4096 Steps) Grayscale PWM Control
- Dot Correction
- Drive Capability (Constant-Current Sink)
- LED Power Supply Voltage up to 17 V
- VCC = 3.0 V to 5.5 V
- Serial Data Interface
- 30-MHz Data Transfer Rate
- CMOS Level I/O
- Error Information
- LOD: LED Open Detection
- TEF: Thermal Error Flag
- APPLICATIONS
- Monocolor, Multicolor, Full-Color LED Displays
- LED Signboards
- Display Back-lighting
TLC5945 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 |
| TLC5945PWP |
ACTIVE |
-40 to 85 |
2.20 | 1ku |
HTSSOP (PWP) | 28 |
50 | TUBE |
|
| TLC5945PWPR |
ACTIVE |
-40 to 85 |
1.80 | 1ku |
HTSSOP (PWP) | 28 |
2000 | LARGE T&R |
|
| TLC5945RHBR |
ACTIVE |
-40 to 85 |
2.00 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
|
| TLC5945RHBT |
ACTIVE |
-40 to 85 |
2.25 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
|
TLC5945 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 |
| TLC5945PWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5945PWP |
TLC5945PWP |
| TLC5945PWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5945PWPR |
TLC5945PWPR |
| TLC5945RHBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5945RHBR |
TLC5945RHBR |
| TLC5945RHBT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5945RHBT |
TLC5945RHBT |
TLC5945 应用技术支持与电子电路设计开发资源下载
- TLC5945 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
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- 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
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(PDF 2206 KB)
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- 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)
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