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Product details

Parameters

Channels (#) 6 Vin (Min) (V) 5 Vin (Max) (V) 24 Switching frequency (Max) (kHz) 1000 Product type Inductive LED current per channel (mA) 25 Shutdown current (Typ) (uA) 16 Topology Boost Peak efficiency (%) 90 Features Load Disconnect During Shutdown Operating temperature range (C) -40 to 85 open-in-new Find other Backlight LED drivers

Package | Pins | Size

WQFN (RTE) 16 9 mm² 3 x 3 open-in-new Find other Backlight LED drivers

Features

  • 5 V to 24 V Input Voltage
  • Integrated 1.5 A 40 V MOSFET
  • 1.0 MHz/1.3 MHz Switching Frequency
  • Boost Output Auto-Adaptive to WLED Voltages
  • Small External Components
  • Integrated Loop Compensation
  • Six Current Sink of 25 mA
  • Up to 10 WLED in Series
  • Less Than 3% Current Matching and Accuracy
  • Up to 1000:1 PWM Brightness DImming Range
  • Minimized Output Ripple Under PWM Dimming
  • Driver for Input/Output Isolation PFET
  • True Shutdown
  • Over Voltage Protection
  • WLED Open/Short Protection
  • Built-in Soft Start
  • 16L 3 mm×3 mm QFN
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Description

The TPS61180/1/2 ICs provide highly integrated solutions for media size LCD backlight. These devices have a built-in high efficiency boost regulator with integrated 1.5A/40V power MOSFET. The six current sink regulators provide high precision current regulation and matching. In total, the device can support up to 60 WLED. In addition, the boost output automatically adjusts its voltage to the WLED forward voltage to improve efficiency.

The devices support pulse width modulation (PWM) brightness dimming. During dimming, the WLED current is turned on/off at the duty cycle and frequency determined by the PWM signal input on the DCRTL pin. One potential issue of PWM dimming is audible noises from the output ceramic capacitors. The TPS61180/1/2 family is designed to minimize this output AC ripple across a wide dimming duty cycle and frequency range; therefore, reducing the audible noise.

The TPS61180/1/2 ICs provide a driver output for an external PFET connected between the input and inductor. During short circuit or over-current conditions, the ICs turn off the external PFET and disconnect the battery from the WLEDs. The PFET is also turned off during IC shutdown (true shutdown) to prevent any leakage current of the battery. The device also integrates over-voltage protection, soft-start and thermal shutdown.

The TPS61180 IC requires external 3.3V IC supply, while TPS61181 and TPS61182 ICs have a built-in linear regulator for the IC supply. All the devices are in a 3×3 mm QFN package.

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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 12
Type Title Date
* Datasheet WLED DRIVER FOR NOTEBOOK DISPLAY. datasheet (Rev. E) Apr. 11, 2013
Technical articles Overcoming challenges for backlight LED drivers in automotive display solutions Jul. 16, 2020
Application notes Some Guidelines and Tips for the LED Driver Application Aug. 14, 2019
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov. 29, 2017
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Technical articles Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical articles LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
Technical articles Take better selfies with innovative LED flashes Nov. 18, 2014
Application notes Analog Dimming with the TPS61181 Nov. 08, 2011
User guides TPS61181EVM-259 / TPS61182EVM-259 (Rev. B) May 12, 2011
Application notes TPS61181 One-Cell Battery Application for Tablet PC Backlight Sep. 09, 2010

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
299
Description
The SN65DSI83Q1-EVM evaluation module (EVM) is a printed circuit board (PCB) that helps customers implement the SN65DSI83-Q1 device in system hardware.  This EVM includes on-board connectors for DSI input and LVDS output signals.  These connectors are for connecting (...)
Features
  • Plug and play design
  • Input options for DSI video signal (QSH-type connector and FX-type connector)
  • Output port options available for the LVDS output signals (QSH-type connector and I-PEX-type connector)
  • I2C interface to configure internal registers
  • LED backlight driver circuitry using TI's backlight (...)
EVALUATION BOARDS Download
document-generic User guide
299
Description
The SN65DSI85Q1EVM is a PCB created to help customers implementing SN65DSI85Q1 in system hardware.  This EVM includes on-board connectors for DSI input and LVDS output signals.  These connectors are for connecting MIPI DPHY compliant DSI source and LVDS panels to the EVM.
Features
  • Plug and play design
  • Two input options for DSI video signal (QSH-type connector and FX-type connector)
  • Two output port options available for the LVDS output signals (QSH-type connector and I-PEX-type connector)
  • I2C interface to configure internal registers
  • Incorporates LED backlight driver circuitry (...)
EVALUATION BOARDS Download
document-generic User guide
49
Description

The TPS61181EVM-259 facilitates evaluation of the TPS61181 1.5 A White LED Driver for Notebooks. This IC provides a highly integrated solution for media size LCD backlight. The device has a built-in high efficiency boost regulator with integrated 1.5 A/40 V power MOSFET.

Features
  • 5 V to 24 V Input Voltage
  • Integrated 1.5 A 40 V MOSFET
  • 1.0 MHz/1.3 MHz Switching Frequency
  • Boost Output Auto-Adaptive to WLED Voltages
  • Small External Components
  • Integrated Loop Compensation
  • Six Current Sink of 25 mA
  • Up to 10 WLED in Series
  • Less Than 3% Current Matching and Accuracy
  • 100:1 PWM Brightness Dimming Range
  • (...)
EVALUATION BOARDS Download
199
Description

The WLEDEVM-260 load board contains 8 white light emitting diode (WLED) banks/strings which contain either 10 or 12 WLEDs as selected by the odd numbered jumpers (JP1, JP3, etc.). It is used with the TPS61181EVM-259 or TPS61182EVM-259 Evaluation Module to demonstrate functionality of the TPS6118x IC.

Features
  • 8 strings of up to 12 LEDs
  • Ribbon cable for connection to the TPS61181EVM-259 and TPS61182EVM-259 Evaluation Module

Design tools & simulation

SIMULATION TOOLS 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
  • (...)

CAD/CAE symbols

Package Pins Download
WQFN (RTE) 16 View options

Ordering & quality

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