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TPS61165

現行

2mm x 2mm QFN 封裝的高亮度白光 LED 驅動器

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最新 TPS923611 現行 具有 0.1% 比率 PWM 控制類比調光的 30V、1.8A 同步升壓 LED 驅動器 Newer Device with market 1st synchronous boost topology

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 mm × 2.8 mm) WSON (DRV) 6 4 mm² (2 mm × 2 mm)
  • 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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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 TPS61165 High-Brightness, White LED Driver in WSON and SOT-23 Packages datasheet (Rev. E) PDF | HTML 2019/3/27
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 Simple Backlight Driver Dimming Performance 2017/3/20
應用說明 Analog PWM Dimming in White-LED Drivers 2016/12/21
應用說明 Inductor Selection in Boost Converters for LCD Backlight Applications 2016/10/24
應用說明 Schottky Diode Selection in Asynchronous Boost Converters 2016/9/6
應用說明 Designing Low Cost Flyback Power Supply Using Boost Converter (TPS61165) for HF 2014/4/17
應用說明 How to Use Analog Dimming With TPS6116x 2011/8/5
類比設計期刊 Compensating and measuring the DC/DC converter loop that powers a high-power LED 2008/10/22

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)。

支援軟體

TPS6116XEVM-SW — TPS6116x 評估模組的軟體

The TPS6116xEVM-SW software provides a software interface for the TPS6116x/70 EVM boards. Use this software to change the TPS6116x IC register via the USB Interface Adapter.

支援產品和硬體
模擬型號

TPS61165 Unencrypted PSpice Transient Model Package (Rev. B)

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

SLVC366 — Design Tool for Analog Dimming Using a PWM Signal

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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。

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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

此參考設計可根據環境光亮度動態調整 LCD 背光亮度，達到節省電力並延長 LCD 背光壽命的目的。電容式近距感測器可在有人接近時喚醒系統，從休眠或待機模式恢復運作，以節能並延長 LCD 背光壽命。
支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 6 Ultra Librarian
WSON (DRV) 6 Ultra Librarian
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