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背光 LED 驅動器

TPS61165

現行

2mm x 2mm QFN 封裝的高亮度白光 LED 驅動器

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產品規格表

TPS61165

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Vin (min) (V) 3 Vin (max) (V) 18 Vout (min) (V) 3 Vout (max) (V) 38 Type Inductive Switching frequency (max) (kHz) 1200 Duty cycle (max) (%) 93 LED current per channel (mA) 400 Peak efficiency (%) 90 Topology Boost Features EasyScale 1-Wire Interface, Load Disconnect During Shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 1 Vin (min) (V) 3 Vin (max) (V) 18 Vout (min) (V) 3 Vout (max) (V) 38 Type Inductive Switching frequency (max) (kHz) 1200 Duty cycle (max) (%) 93 LED current per channel (mA) 400 Peak efficiency (%) 90 Topology Boost Features EasyScale 1-Wire Interface, Load Disconnect During Shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8 WSON (DRV) 6 4 mm² 2 x 2
  • 3-V to 18-V Input voltage range
  • 38-V Open LED protection
  • 200-mV Reference voltage with 2% accuracy
  • 1.2-A Switch FET with 1.2-MHz switching frequency
  • Flexible one-wire digital and PWM brightness control
  • Built-in soft start
  • Up to 90% efficiency
  • 2-mm × 2-mm × 0.8-mm 6-Pin WSON package with thermal pad, and SOT-23 package
  • 3-V to 18-V Input voltage range
  • 38-V Open LED protection
  • 200-mV Reference voltage with 2% accuracy
  • 1.2-A Switch FET with 1.2-MHz switching frequency
  • Flexible one-wire digital and PWM brightness control
  • Built-in soft start
  • Up to 90% efficiency
  • 2-mm × 2-mm × 0.8-mm 6-Pin WSON package with thermal pad, and SOT-23 package

With a 40-V rated integrated switch FET, the TPS61165 device is a boost converter that drives LEDs in series. The boost converter runs at a
1.2-MHz fixed switching frequency with 1.2-A switch current limit, allowing the use of a high-brightness LED in general lighting.

The default white LED current is set with the external sensor resistor Rset, and the feedback voltage is regulated to 200 mV, as shown in the Typical Application drawing below. During the operation, the LED current can be controlled using the one-wire digital interface (EasyScale™ protocol) through the CTRL pin. Alternatively, a pulse-width-modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61165 device does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open-LED protection that disables the TPS61165 device to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.

With a 40-V rated integrated switch FET, the TPS61165 device is a boost converter that drives LEDs in series. The boost converter runs at a
1.2-MHz fixed switching frequency with 1.2-A switch current limit, allowing the use of a high-brightness LED in general lighting.

The default white LED current is set with the external sensor resistor Rset, and the feedback voltage is regulated to 200 mV, as shown in the Typical Application drawing below. During the operation, the LED current can be controlled using the one-wire digital interface (EasyScale™ protocol) through the CTRL pin. Alternatively, a pulse-width-modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61165 device does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open-LED protection that disables the TPS61165 device to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.
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類型 標題 日期
* Data sheet TPS61165 High-Brightness, White LED Driver in WSON and SOT-23 Packages datasheet (Rev. E) PDF | HTML 2019年 3月 27日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 2017年 11月 29日
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
Application note Simple Backlight Driver Dimming Performance 2017年 3月 20日
Application note Analog PWM Dimming in White-LED Drivers 2016年 12月 21日
Application note Inductor Selection in Boost Converters for LCD Backlight Applications 2016年 10月 24日
Application note Schottky Diode Selection in Asynchronous Boost Converters 2016年 9月 6日
Application note Designing Low Cost Flyback Power Supply Using Boost Converter (TPS61165) for HF 2014年 4月 17日
EVM User's guide TPS61165EVM-283 (Rev. D) 2013年 6月 13日
Application note How to Use Analog Dimming With TPS6116x 2011年 8月 5日
Analog Design Journal Compensating and measuring the DC/DC converter loop that powers a high-power LED 2008年 10月 22日

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)。

開發板

TPS61165EVM-283 — TPS61165EVM-283 評估模組

The TPS61165EVM-283 facilitates evaluation of the TPS61165 High Brightness White LED Driver. With its 40 V rated integrated switch FET, the TPS61165 is a boost converter to driver up to 10 LEDs in series. The boost converter runs at 1.2 Hz fixed switching frequency to reduce output (...)

使用指南: PDF
TI.com 無法提供
模擬型號

TPS61165 Unencrypted PSpice Transient Model Package (Rev. B)

SLVMBP3B.ZIP (583 KB) - PSpice Model
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計算工具

SLVC366 — Design Tool for Analog Dimming Using a PWM Signal

支援產品和硬體

支援產品和硬體

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AC/DC 和 DC/DC 轉換器 (整合式 FET)
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Gerber 檔案

TPS61165EVM (HPA283) Gerber files

SLVC348.ZIP (188 KB)
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
要求
參考設計

TIDA-01364 — 透過白光 LED 驅動器、環境光與近距感測器執行智慧背光控制參考設計

This reference design conserves power and extends LCD backlight life by dynamically adjusting the LCD backlight brightness relative to the environment's ambient light levels. A capacitive proximity sensor saves power and increases LCD backlight life by waking up the system from sleep or (...)
Design guide: PDF
電路圖: PDF
參考設計

PMP10835 — LED 驅動器 SEPIC 轉換器 (9.9V@0.24A) 參考設計

This SEPIC converter regulates current in 3 series white LEDs to 0.24A while operating over an input voltage range of 8.7V - 16.5V. The SEPIC operates at 1.2MHz, allowing the circuit to occupy an area of only 10mm x 20mm. Applications include an LED backlight for portable medical devices.
Test report: PDF
電路圖: PDF
參考設計

TIDA-00660 — 具有調光控制和自動降溫功能的 70V、60mA 白光 LED 驅動器參考設計

精巧高效 (>90%) 白光 LED 驅動器。  透過 6V 至 18V 電源，以高達 70V 的電壓和高達 60mA 的電流驅動 440 流明白色 LED。  包含電壓控制式調光，並透過自動熱流比縮減功能防止 LED 溫度過高。  專為 6V 至 18V DC 供電系統中的一般用途 LED 照明而設計。
Design guide: PDF
電路圖: PDF
封裝 引腳 下載
SOT-23 (DBV) 6 檢視選項
WSON (DRV) 6 檢視選項
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