TPS68401 多功能 3 通道 LED 驱动器
TPS68401 描述
The TPS68401/TPS68402 is an advanced lighting management unit for handheld devices. It has three independent channels optimized for driving RGB LEDs. The built-in fractional charge pump boosts the input voltage to power the LEDs at low input voltage. Channel one can optionally be supplied directly from the battery voltage to reduce power consumption and improve efficiency.
At the heart of the device is a programmable state machine which executes a lighting program consisting of up to 16 instructions per channel. Once the program is loaded through the I2C interface the device is fully independent from the main processor resulting in significant system-level power savings. The device can issue an interrupt to the main processor via the INT pin
|
TPS68401 |
TPS68402 |
| Topology |
Multi-Channel |
Multi-Channel |
| Vin(Min)(V) |
2.7 |
2.7 |
| Vin(Max)(V) |
5.5 |
5.5 |
| Switching Frequency(Max)(kHz) |
1250 |
1250 |
| Operating Temperature Range(°C) |
-30 to 85 |
-30 to 85 |
| Pin/Package |
20DSBGA |
24VQFN |
| Iout(Max)(A) |
0.15 |
0.15 |
TPS68401 特性
- Multifunction LED Driver With Three Independent Channels
- Integrated High Efficiency 1x / 1.5x Charge Pump With Automatic
or Manual Gain Change
- 3 x 25.5-mA Total Output Current
- 3 x 25.5-mA Total Output Current
- Three Independent Program Execution Engines (3 x 16 Instructions)
- 8-Bit PWM With Exponential Control Option
- 8-Bit Current DAC Control
- 200-nA Typical Shutdown Current
- Automatic Power-Save Mode
- Autonomous Operation Without External Control
- Trigger I/O for Synchronizing Multiple Devices
- One or Two General Purpose Output Controlled Via Serial Interface
- I2C Interface
- Operating Temperature Range: –30oC to 85oC
- 20-Ball WLCSP Package With 0.4-mm Pitch
- APPLICATIONS
- LED Control for Portable Applications
- Accent Lighting (Mood, Personalization, etc.)
- Function Indication (Charge, Messages, etc.)
- Keypad Illumination / Backlight (White or RGB)
TPS68401 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TPS68401C4YFFR |
ACTIVE |
-30 to 85 |
0.80 | 1ku |
DSBGA (YFF) | 20 |
3000 | LARGE T&R |
|
TPS68401 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 |
| TPS68401C4YFFR |
Green (RoHS & no Sb/Br) |
Call TI |
Level-1-260C-UNLIM |
TPS68401C4YFFR |
TPS68401C4YFFR |
TPS68401 应用技术支持与电子电路设计开发资源下载
- TPS68401 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)
TPS68401 相关工具