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TPS61165-Q1

アクティブ

車載、高輝度白色 LED ドライバ

製品詳細

Number of channels 1 Topology Boost Rating Automotive Operating temperature range (°C) -40 to 105 Vin (min) (V) 3 Vin (max) (V) 18 Vout (min) (V) 3 Vout (max) (V) 38 Iout (max) (A) 0.4 Iq (typ) (mA) 1.5 Switching frequency (max) (kHz) 1200 Features Load Disconnect During Shutdown, Synchronous Rectification
Number of channels 1 Topology Boost Rating Automotive Operating temperature range (°C) -40 to 105 Vin (min) (V) 3 Vin (max) (V) 18 Vout (min) (V) 3 Vout (max) (V) 38 Iout (max) (A) 0.4 Iq (typ) (mA) 1.5 Switching frequency (max) (kHz) 1200 Features Load Disconnect During Shutdown, Synchronous Rectification
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • Qualified for Automotive Applications
  • 40-V Maximum Breakdown Voltage of Internal
    MOSFET
  • 38-V Open LED Protection
  • 200-mV Reference Voltage With 2% Accuracy
  • 1.2-A Switch FET With 1.2-MHz Switching
    Frequency
  • Flexible 1-Wire Digital and PWM Brightness
    Control
  • Built-in Soft Start
  • Up to 90% Efficiency
  • SOT-23 Package
  • Qualified for Automotive Applications
  • 40-V Maximum Breakdown Voltage of Internal
    MOSFET
  • 38-V Open LED Protection
  • 200-mV Reference Voltage With 2% Accuracy
  • 1.2-A Switch FET With 1.2-MHz Switching
    Frequency
  • Flexible 1-Wire Digital and PWM Brightness
    Control
  • Built-in Soft Start
  • Up to 90% Efficiency
  • SOT-23 Package

With a 40-V rated integrated switch FET, the TPS61165-Q1 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, and allows for 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 section. During the operation, the LED current can be controlled using the 1-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-Q1 device does not burst the LED current; therefore, the device does not generate audible noises on the output capacitor. For maximum protection, the TPS61165-Q1 device features integrated open LED protection that disables it to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.

The TPS61165-Q1 device is available in a SOT-23 package.

With a 40-V rated integrated switch FET, the TPS61165-Q1 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, and allows for 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 section. During the operation, the LED current can be controlled using the 1-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-Q1 device does not burst the LED current; therefore, the device does not generate audible noises on the output capacitor. For maximum protection, the TPS61165-Q1 device features integrated open LED protection that disables it to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.

The TPS61165-Q1 device is available in a SOT-23 package.

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技術資料

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上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート TPS61165-Q1 High-Brightness White LED Driver in SOT-23 Package データシート (Rev. B) PDF | HTML 2014/10/09
アプリケーション・ノート Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018/12/11

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サポート・ソフトウェア

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サポート対象の製品とハードウェア
パッケージ ピン数 CAD シンボル、フットプリント、および 3D モデル
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