TLC5905 8/16 通道 LED 驱动器
TLC5905 描述
The TLC5905 is a constant current driver that incorporates shift register, data latch, constant current circuitry with a current value adjustable and 256 gray scale display that uses pulse width control. The output current can be selected as maximum 80 mA with 16 bits or 120 mA with 8 bit. The current value of the constant current output is set by one external resistor. After this device is mounted on a printed-circuit board (PCB), the brightness deviation between LED modules (ICs) can be adjusted using an external data input, and the brightness control for the panel can be accomplished by the brightness adjustment circuitry. Also, the device incorporates the output voltage monitor (OVM) used for LED open detection (LOD) by monitoring constant current output.
|
TLC5905 |
| Output Channels |
16 |
| PWM Dimming Steps |
256 |
| Analog Dimming Steps |
32 |
| Per Channel Drive(mA) |
120 |
| Ch to Ch Accuracy(Typ)(+/- %) |
4 |
| Data Input |
Serial |
| Data Transfer Rate(Typ)(MHz) |
15 |
| Data Vin(Min)(V) |
4.5 |
| Data Vin(Max)(V) |
5.5 |
| LED Voltage(Max)(V) |
17 |
| Pin/Package |
64HTQFP |
| Approx. Price (US$) |
2.85 | 1ku |
TLC5905 特性
- Drive Capability and Output Counts:
- 80 mA (Current Sink) × 16 Bits
- 120 mA (Current Sink) × 8 Bits
- Constant Current Output Range:
- 5 mA to 80 mA/10 mA to 120 mA (Selectable by MODE Terminal) ( Current Value Setting for All Output Terminals Using External Resistor and Internal Brightness Control Register)
- Constant Current Accuracy ±4% (Maximum Error Between Bits)
- Voltage Applied to Constant Current Output Terminals:
- Minimum 0.4 V (Output Current 5 mA to 40 mA)
- Minimum 0.7 V (Output Current 40 mA to 80 mA)
- 256 Gray Scale Display:
- Pulse Width Control 256 Steps
- Brightness Adjustment:
- Output Current Adjustment for 32 Steps (Adjustment for Brightness Deviation Between LED Modules)
- 8 Steps Brightness Control by 8 Times Speed Gray Scale Control Clock (Brightness Adjustment for Panel)
- Error Output Signal Check:
- Check Error Output Signal Line Such as Protection Circuit When Operating
- Data Output Timing Selectable:
- Select Data Output Timing for Shift Register Relative to Clock
- OVM (Output Voltage Monitor):
- Monitor Voltage on Constant Current Output Terminals (Detect LED Disconnection and Short Circuit)
TLC5905 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 |
| TLC5905PAP |
ACTIVE |
2.85 | 1ku |
HTQFP (PAP) | 64 |
160 | JEDEC TRAY (10+1) |
TLC5905 |
| TLC5905PAPG4 |
ACTIVE |
2.85 | 1ku |
HTQFP (PAP) | 64 |
160 | JEDEC TRAY (10+1) |
TLC5905 |
TLC5905 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 |
| TLC5905PAP |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TLC5905PAP |
TLC5905PAP |
| TLC5905PAPG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TLC5905PAPG4 |
TLC5905PAPG4 |
TLC5905 应用技术支持与电子电路设计开发资源下载
- TLC5905 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)
TLC5905 相关工具
