TPS61165DBVR


1.2A 38V LED boost driver, 3-18V in, 1.2MHz, EasyScale/PWM dimming, SOT-23-6

6506

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制造商零件:

TPS61165DBVR

包装:

SOT-23-6 / DBV (2.9 x 2.8 x 1.45mm)

品牌:
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说明

产品概览

The TPS61165DBVR from Texas Instruments is a high-brightness white LED boost driver in a SOT-23-6 package. With a 40V rated integrated switch FET and 1.2A switch current limit at 1.2MHz switching frequency, it drives up to 10 LEDs in series from 3V to 18V input, featuring EasyScale 1-wire digital dimming, PWM dimming, and integrated open-LED protection.

主要规格

输入电压范围 3V to 18V
Output Voltage Range Up to 38V
Internal Switch FET Rating 40V
Switch Current Limit 1.2A
开关频率 1.2MHz fixed
LED Current per Channel Up to 400mA
Feedback Reference Voltage 200mV (2% accuracy)
Peak Efficiency Up to 90%
Dimming Methods EasyScale 1-wire digital / PWM
Open LED Protection 38V (integrated)
静态电流 2.3mA typ. (switching)
关机电流 1μA typ.
包装 SOT-23-6 (2.9 x 2.8mm)
工作温度 -40°C to +85°C

特点

  • 40V rated integrated switch FET for driving up to 10 series LEDs
  • 1.2A switch current limit at 1.2MHz switching frequency
  • 3V to 18V input voltage range
  • 38V open-LED protection (output clamping)
  • 200mV feedback reference with 2% accuracy
  • EasyScale 1-wire digital interface for brightness control
  • PWM dimming via CTRL pin (5kHz to 100kHz)
  • Built-in soft start
  • Up to 90% efficiency
  • Load disconnect during shutdown
  • Non-burst dimming eliminates audible capacitor noise

应用

  • White LED backlight for 7-10 inch LCD panels
  • General LED lighting and illumination
  • Portable projector LED drivers
  • Automotive interior LED lighting
  • Battery-powered LED flashlights

The TPS61165DBVR from Texas Instruments is a high-brightness white LED boost driver featuring a 40V rated integrated switch FET with 1.2A current limit and 1.2MHz fixed switching frequency. Operating from 3V to 18V input, it drives up to 10 white LEDs in series with output voltages up to 38V. LED current is set by an external sense resistor with a 200mV feedback reference (2% accuracy). The CTRL pin provides dual dimming modes: EasyScale 1-wire digital interface for precise current control, or PWM dimming where duty cycle adjusts the reference voltage. The device does not burst the LED current in either mode, eliminating audible noise on output capacitors.

The TPS61165 is a current-mode boost converter that regulates LED current through a sense resistor from the FB pin to GND. The internal N-channel MOSFET switches at 1.2MHz, storing energy in the external inductor during the on-time and delivering it to the LED string through an external Schottky diode during the off-time. The current-mode control scheme provides cycle-by-cycle current limiting and stable operation with slope compensation for duty cycles above 40%. The CTRL pin serves as a multifunction control: a constant high enables normal operation, a PWM signal adjusts brightness by modulating the FB reference voltage, and the EasyScale protocol provides 1-wire digital brightness control. Open-LED protection monitors the SW pin voltage and disables the converter if the output exceeds 38V.

针脚 名称 类型 功能
1 VIN 电源 Input supply (3V to 18V)
2 CTRL 输入 Enable / PWM dimming / EasyScale interface
3 SW 电源 Switch node (inductor connection)
4 接地 电源 地面
5 COMP 输出 Error amplifier output (compensation cap)
6 FB 输入 Current feedback (sense resistor to GND)
  • 7-10 inch LCD panel white LED backlight driver
  • High-brightness LED general illumination boost driver
  • Portable projector RGB LED current source
  • Automotive interior LED lighting from 12V battery
  • Battery-powered flashlight and torch LED drivers
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认证
我们获得了多项专业认证,并建立了自己的专业检测实验室,确保交付给客户的每一件产品都符合最高质量要求。我们严格按照流程进行检测,确保产品质量稳定、参数准确。为保证原装正品,我们还与可靠的第三方检测机构合作,进行严格的质量检测。我们始终高度重视质量,完全符合行业标准、相关法规和 ISO 9001:2015 的要求。.

服务与包装

我们从合作供应链采购的所有电子元件都经过严格的进货检验。通过仔细的测试,我们确保交付给客户的所有产品都是原装正品,符合质量要求。此外,我们还保存完整的检验记录,使整个供应链流程清晰可查。.

认证
我们获得了多项专业认证,并建立了自己的专业检测实验室,确保交付给客户的每一件产品都符合最高质量要求。我们严格按照流程进行检测,确保产品质量稳定、参数准确。为保证原装正品,我们还与可靠的第三方检测机构合作,进行严格的质量检测。我们始终高度重视质量,完全符合行业标准、相关法规和 ISO 9001:2015 的要求。.