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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS6106x Constant Current LED Driver With Digital and PWM Brightness Control datasheet (Rev. B) | PDF | HTML | 2014/12/9 | ||
| 白皮書 | Common LED Functions and LED Driver Design Considerations | 2020/9/21 | ||||
| 應用說明 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018/12/11 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) | 2017/11/29 | ||||
| 應用說明 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017/6/15 | ||||
| 應用說明 | Minimizing Ringing at the Switch Node of a Boost Converter | 2006/9/15 | ||||
| 應用說明 | TPS61060/61/62: Single-Wire Digital Brightness Control | 2006/5/5 | ||||
| 更多文件說明 | Seminar 400 Topic 1 - Current-Mode Control of Switching Power Supplies | 2001/2/15 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
TIDC-ZLIGHT2-W — 適用於家庭及建築自動化的簡易白色可調光 ZigBee 連接 LED 照明
此設計配備無線控制且由 USB 供電的燈具。四個白色 LED 連接成一串，由 TPS61061 LED 驅動器驅動，而該驅動器又由 CC2531 ZigBee 無線 MCU 控制。這提供了一種低成本、高效率的解決方案，適用於連網照明網路和物聯網 (IoT) 系統應用。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | Ultra Librarian |
| DSBGA (YZF) | 8 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。