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TPS61165

ACTIVE

High brightness white LED driver in 2mm x 2mm QFN Package

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NEW TPS923611 ACTIVE 30V, 1.8A synchronous boost LED driver with 0.1% ratio PWM-controlled analog dimming Newer Device with market 1st synchronous boost topology

TPS61165

ACTIVE
Data sheet Order now

Product details

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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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS61165 High-Brightness, White LED Driver in WSON and SOT-23 Packages datasheet (Rev. E) PDF | HTML Mar 27, 2019
White paper Common LED Functions and LED Driver Design Considerations Sep 21, 2020
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec 11, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun 25, 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov 29, 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun 15, 2017
Application note Simple Backlight Driver Dimming Performance Mar 20, 2017
Application note Analog PWM Dimming in White-LED Drivers Dec 21, 2016
Application note Inductor Selection in Boost Converters for LCD Backlight Applications Oct 24, 2016
Application note Schottky Diode Selection in Asynchronous Boost Converters Sep 6, 2016
Application note Designing Low Cost Flyback Power Supply Using Boost Converter (TPS61165) for HF Apr 17, 2014
Application note How to Use Analog Dimming With TPS6116x Aug 5, 2011
Analog design Journal Compensating and measuring the DC/DC converter loop that powers a high-power LED Oct 22, 2008

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Support software

TPS6116XEVM-SW — Software for TPS6116x Evaluation Modules

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.

Supported products & hardware
Simulation model

TPS61165 Unencrypted PSpice Transient Model Package (Rev. B)

SLVMBP3B.ZIP (583 KB) - PSpice model
Supported products & hardware
Calculation tool

SLVC366 — Design Tool for Analog Dimming Using a PWM Signal

Supported products & hardware
Reference design

TIDA-00660 — 70V, 60mA White LED Driver with Dimming Control and Automatic Thermal Scale-Back Reference Design

Compact, High Efficienct (>90%) White LED Driver.  Drives a 440 lumen White LED at up to 70V at up to 60mA from a 6V to 18V source.  Includes voltage controlled dimming with automatic thermal to current scale-back for preventing high LED temperatures.  Designed for genral purpose (...)

Supported products & hardware
Reference design

TIDA-01364 — Smart Backlight Control by White LED Driver, Ambient Light, and Proximity Sensor Reference Design

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 (...)
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 6 Ultra Librarian
WSON (DRV) 6 Ultra Librarian
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