TLC5940 带有 EEprom 点校正与灰度 PWM 控制的 16 通道 LED 驱动器
TLC5940 描述
The TLC5940 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. The dot correction data is stored in an integrated EEPROM. 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 TLC5940 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 |
TLC5940 特性
- 16 Channels
- 12 bit (4096 Steps) Grayscale PWM Control
- Dot Correction
- 6 bit (64 Steps)
- Storable in Integrated EEPROM
- Drive Capability (Constant-Current Sink)
- 0 mA to 60 mA (VCC < 3.6 V)
- 0 mA to 120 mA (VCC > 3.6 V)
- LED Power Supply Voltage up to 17 V
- VCC = 3 V to 5.5 V
- Serial Data Interface
- Controlled In-Rush Current
- 30MHz 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
TLC5940 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 |
| TLC5940NT |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
PDIP (NT) | 28 |
13 | TUBE |
|
| TLC5940NTG4 |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
PDIP (NT) | 28 |
13 | TUBE |
|
| TLC5940PWP |
ACTIVE |
-40 to 85 |
1.50 | 1ku |
HTSSOP (PWP) | 28 |
50 | TUBE |
|
| TLC5940PWPG4 |
ACTIVE |
-40 to 85 |
1.50 | 1ku |
HTSSOP (PWP) | 28 |
50 | TUBE |
|
| TLC5940PWPR |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
HTSSOP (PWP) | 28 |
2000 | LARGE T&R |
|
| TLC5940PWPRG4 |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
HTSSOP (PWP) | 28 |
2000 | LARGE T&R |
|
| TLC5940RHBR |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
|
| TLC5940RHBRG4 |
ACTIVE |
-40 to 85 |
1.25 | 1ku |
QFN (RHB) | 32 |
3000 | LARGE T&R |
|
TLC5940 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 |
| TLC5940NT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
TLC5940NT |
TLC5940NT |
| TLC5940NTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
TLC5940NTG4 |
TLC5940NTG4 |
| TLC5940PWP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5940PWP |
TLC5940PWP |
| TLC5940PWPG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5940PWPG4 |
TLC5940PWPG4 |
| TLC5940PWPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5940PWPR |
TLC5940PWPR |
| TLC5940PWPRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5940PWPRG4 |
TLC5940PWPRG4 |
| TLC5940RHBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5940RHBR |
TLC5940RHBR |
| TLC5940RHBRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
TLC5940RHBRG4 |
TLC5940RHBRG4 |
TLC5940 应用技术支持与电子电路设计开发资源下载
- TLC5940 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)
TLC5940 相关工具
