TPS61061
- LED Driver With Integrated Overvoltage
and Short-Circuit Protection - 2.7-V to 6-V Input Voltage Range
- 500-mV/250-mV Feedback Voltage
- TPS61060 Powers Up to 3 LEDs
- TPS61061 Powers Up to 4 LEDs
- TPS61062 Powers Up to 5 LEDs
- PWM Brightness Control on Enable
- Digital Brightness Control on ILED
- 1-MHz Fixed Switching Frequency
- 400-mA Internal Power MOSFET Switch
- LEDs Disconnected During Shutdown
- Operates With Small-Output Capacitors
Down to 220 nF - Up to 80% Efficiency
- 8-Pin NanoFree® Package (Chipscale, CSP)
- 3 × 3-mm QFN Package
The TPS6106x is a high-frequency, synchronous boost converter with constant current output to drive up to 5 white LEDs. For maximum safety, the device features integrated overvoltage and an advanced short-circuit protection when the output is shorted to ground. The device operates with 1-MHz fixed switching frequency to allow for the use of small external components and to simplify possible EMI problems. The device comes with three different overvoltage protection thresholds (14 V/18 V/23 V) to allow inexpensive and small-output capacitors with lower voltage ratings. The LED current is initially set with the external sense resistor Rs, and the feedback voltage is regulated to 500 mV or 250 mV, depending on the ILED pin configuration. Digital brightness control is implemented by applying a simple digital signal to the ILED pin. Alternatively, a PWM signal up to 1 kHz can be applied to the enable pin to control the LED brightness. During shutdown, the output is disconnected from the input to avoid leakage current through the LEDs.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | TPS6106x Constant Current LED Driver With Digital and PWM Brightness Control 数据表 (Rev. B) | PDF | HTML | 2014-12-9 | ||
| 白皮书 | 常见 LED 功能和 LED 驱动器设计注意事项 | 英语版 | 2020-9-21 | |||
| 应用手册 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018-12-11 | ||||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 | ||||
| 应用手册 | Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) | 2017-11-29 | ||||
| 应用手册 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017-6-15 | ||||
| 应用手册 | 最小化升压转换器开关节点处的振铃 | 英语版 | 2008-7-15 | |||
| 应用手册 | TPS61060/61/62: Single-Wire Digital Brightness Control | 2006-5-5 | ||||
| 更多文献资料 | Seminar 400 Topic 1 - Current-Mode Control of Switching Power Supplies | 2001-2-15 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
TIDC-ZLIGHT2-W — 针对家庭和楼宇自动化的简易白光可调光 ZigBee 互联 LED 灯
该设计采用一个无线控制的 USB 供电灯。四个白光 LED 连接在由 TPS61061 LED 驱动器驱动的单个灯串中，后者又由 CC2531 ZigBee 无线 MCU 控制。这提供了一种低成本、高效率的解决方案，适用于互联照明网络和物联网 (IoT) 系统应用。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | Ultra Librarian |
| DSBGA (YZF) | 8 | Ultra Librarian |
订购和质量
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