TLC5952 具有全局亮度控制和 LED 开路/短路检测功能的 24 通道恒流 LED 驱动器
TLC5952 描述
The TLC5952 is a 24-channel, constant-current sink driver. Each channel can be turned on/off with internal register data. The output channels are grouped into three groups of eight channels each. Each channel group has a 128-step global brightness control (BC) function. Both on/off data and BC are writable via a serial interface. The maximum current value of all 24 channels is set by a single external resistor.
The TLC5952 has three error detection circuits: LED open detection (LOD), LED short detection (LSD), and a thermal error flag (TEF). The error detection is read via a serial interface
|
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 |
TLC5952 特性
- 24-Channel Constant-Current Sink Output with On/Off Control
- Current Capability:
- 35 mA for 16 Channels
- 26.2 mA for 8 Channels
- Global Brightness Control (BC) for Each Color Group: 7-Bit (128 Step), Three Groups
- LED Power-Supply Voltage up to 15 V
- VCC = 3.0 V to 5.5 V
- Constant-Current Accuracy:
- Channel-to-Channel = ±1%
- Device-to-Device = ±3%
- CMOS Logic Level I/O
- Data Transfer Rate: 35 MHz
- BLANK Pulse Width: 15 ns
- Open Load, Short Load, and Over-Temperature Detection
- Thermal Shutdown (TSD) with Auto Restart
- Delay Switching to Prevent Inrush Current
- Operating Temperature: -40°C to +85°C
- Packages: HTSSOP-32, QFN-32
- APPLICATIONS
TLC5952 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 |
| TLC5952DAP |
ACTIVE |
-40 to 85 |
3.60 | 1ku |
HTSSOP (DAP) | 38 |
40 | TUBE |
|
| TLC5952DAPR |
ACTIVE |
-40 to 85 |
3.00 | 1ku |
HTSSOP (DAP) | 38 |
2000 | LARGE T&R |
|
TLC5952 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 |
| TLC5952DAP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TLC5952DAP |
TLC5952DAP |
| TLC5952DAPR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TLC5952DAPR |
TLC5952DAPR |
TLC5952 应用技术支持与电子电路设计开发资源下载
- TLC5952 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)
- PowerPADTM 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)
TLC5952 相关工具