TLC5942 具有 7 位点校正功能的 16 通道 12 位 PWM
TLC5942 描述
The TLC5942 is a 16-channel, constant current sink driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 128 constant current sink steps for dot correction. Dot correction adjusts the brightness variations between LEDs. Both grayscale control and dot correction are accessible via separate, dedicated serial interface ports. The maximum current value of all 16 channels can be set by a single external resistor.
The TLC5942 has two error detection circuits for LED open detection (LOD) and a thermal error flag (TEF). LOD detects a broken or disconnected LED during the display period. TEF indicates an over-temperature condition; when a TEF is set, all output drivers are turned off
|
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 |
TLC5942 特性
- 16 Channels, Constant Current Sink Output
- 50-mA Capability (Constant Current Sink)
- 12-Bit (4096 Steps) Grayscale Control with PWM
- 7-Bit (128 Steps) Dot Correction with Sink Current
- LED Power-Supply Voltage up to 17 V
- Constant Current Accuracy:
- Channel-to-Channel = ±1.5%
- Device-to-Device = ±3%
- VCC = 3.0 V to 5.5 V
- CMOS Level I/O
- 30-MHz Data Transfer Rate
- 30-MHz Grayscale Control Clock
- Dedicated Ports for Grayscale and Dot Correction
- Continuous Base LED Open Detection (LOD)
- Thermal Shutdown (TSD):
- Automatic shutdown at high temperature conditions
- Restart under normal temperature
- Readable Error Information:
- LED Open Detection
- Thermal Error Flag (TEF)
TLC5942 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 |
| TLC5942PWP |
ACTIVE |
-40 to 85 |
2.20 | 1ku |
HTSSOP (PWP) | 28 |
50 | TUBE |
|
| TLC5942PWPR |
ACTIVE |
-40 to 85 |
1.80 | 1ku |
HTSSOP (PWP) | 28 |
2000 | LARGE T&R |
|
| TLC5942RHBR |
ACTIVE |
-40 to 85 |
2.00 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
|
| TLC5942RHBT |
ACTIVE |
-40 to 85 |
2.25 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
|
TLC5942 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 |
| TLC5942PWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5942PWP |
TLC5942PWP |
| TLC5942PWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5942PWPR |
TLC5942PWPR |
| TLC5942RHBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5942RHBR |
TLC5942RHBR |
| TLC5942RHBT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5942RHBT |
TLC5942RHBT |
TLC5942 应用技术支持与电子电路设计开发资源下载
- TLC5942 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)
TLC5942 相关工具
