Product details

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 5 mm² 2.9 x 1.6
  • 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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Technical documentation

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Type Title Date
* Data sheet TPS61165-Q1 High-Brightness White LED Driver in SOT-23 Package datasheet (Rev. B) 09 Oct 2014
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Technical article Here's how body electronics and lighting technology are changing the driving experience 26 Sep 2016
Technical article LED brightness adjustment: high-frequency PWM dimming 26 Aug 2016
Technical article Take better selfies with innovative LED flashes 18 Nov 2014
Technical article Solving the automotive EMI issues in new cars with all the screens 11 Sep 2014

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Evaluation board

TPS61165EVM-283 — TPS61165EVM-283 Evaluation Module

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 (...)

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PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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SOT-23 (DBV) 6 View options

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