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Product details

Parameters

Channels (#) 1 Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Switching frequency (Max) (kHz) 1500 Product type Inductive LED current per channel (mA) 400 Shutdown current (Typ) (uA) 1 Topology Boost Peak efficiency (%) 90 Features OVP, PWM Control Operating temperature range (C) -40 to 85 open-in-new Find other Backlight LED drivers

Package | Pins | Size

SOT-SC70 (DCK) 5 4 mm² 2 x 2.1 open-in-new Find other Backlight LED drivers

Features

  • 2.7-V to 5.5-V Input Voltage
  • Integrated 40-V, 1.8-A MOSFET
  • Drives LED String up to 38 V
  • 1.2-A Minimum Switch Current Limit
  • 1.2-MHz Switching Frequency
  • 204-mV Reference Voltage
  • Internal Compensation
  • PWM Brightness Control
  • Open LED Protection
  • Undervoltage Protection
  • Built-in Soft-Start
  • Thermal Shutdown
  • Up to 90% Efficiency
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Description

With a 40-V rated integrated switch FET, the TPS61169 is a boost converter that drives LEDs in series. The boost converter has a 40-V, 1.8-A internal MOSFET with minimum 1.2-A current limit; thus it can drive single or parallel LED strings for small- to large-size panel backlighting. The default white LED current is set with the external sensor resistor, RSET, and the feedback voltage is regulated to 204 mV, as shown in the . During the operation, the LED current can be controlled by using a pulse width modulation (PWM) signal applied to the CTRL pin, through which the duty cycle determines the feedback reference voltage. The TPS61169 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 TPS61169 to prevent the output voltage from exceeding the absolute maximum voltage ratings of the device during open LED conditions.

The TPS61169 is available in a space-saving 5-pin SC70 package.

For all available packages, see the orderable addendum at the end of the data sheet.
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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 11
Type Title Date
* Datasheet TPS61169 38-V High Current-Boost WLED Driver With PWM Control datasheet (Rev. A) Mar. 18, 2016
White paper Common LED Functions and LED Driver Design Considerations Sep. 21, 2020
Technical articles Overcoming common design challenges in an UV sterilization box system Jul. 27, 2020
Technical articles Overcoming challenges for backlight LED drivers in automotive display solutions Jul. 16, 2020
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
Technical articles Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Application note Schottky Diode Selection in Asynchronous Boost Converters Sep. 06, 2016
Technical articles LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
User guide Using the TPS61169 Evaluation Module Nov. 11, 2014

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description

The Texas Instruments TPS61169EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS61169, which are WLED driver providing highly integrated solutions for single-cell Li-ion battery powered backlight for small and media form factor LCD display.  The EVM is (...)

Features
  • Single-channel WLED driver
  • Adaptive boost output for LED voltage

Design tools & simulation

SIMULATION MODEL Download
SNVMAV9B.ZIP (389 KB) - PSpice Model
SIMULATION MODEL Download
SNVMBI4.TSC (3026 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SNVMBI5.ZIP (48 KB) - TINA-TI Spice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
High efficiency, low-output ripple power supply reference design for imaging application
TIDA-01579 — The point-of-load power-tree on video surveillance systems is optimized with this reference design. This reference design has a high performance on key parameters such as output voltage accuracy, voltage ripple, and thermal dissipation. This high performance is possible with a small board area and (...)
document-generic Schematic
REFERENCE DESIGNS Download
IR LED Illumination and ICR Control Reference Design for IP Network Cameras With Day/Night Vision
TIDA-01586 — This reference design showcases an Infrared LED illumination sub-system for Internet Protocol (IP) network cameras with day and night vision. The system features a cut filter control, LED dimming, ambient light measuring and ballasting for current of each IR LED string. Ballasting is an alternative (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 5 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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