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Product details

Parameters

Topology Boost with Current Sink Channels (#) 6 Vin (Min) (V) 8 Vin (Max) (V) 30 Vout (Min) (V) 120 Vout (Max) (V) 120 Iout (Max) (A) 1.2 Iq (Typ) (mA) 2 LED current per channel (mA) 200 Switching frequency (Max) (kHz) 800 Operating temperature range (C) -40 to 125 Features Adjustable Switch Frequency, Global dimming Applications LCD Backlight Rating Automotive open-in-new Find other Automotive LED drivers

Package | Pins | Size

HTSSOP (PWP) 28 43 mm² 9.7 x 4.4 open-in-new Find other Automotive LED drivers

Features

  • 8-V to 30-V Input Voltage
  • Up to 120-V Output Voltage
  • 100-KHz to 800-kHz Programmable Switching Frequency
  • Adaptive Boost Output for LED Voltages
  • Six Current Sinks, 200-mA Continuous Output, 400-mA Pulse Output for Each String
  • ±1.5% Current Matching Between Strings
  • High Precision PWM Dimming Resolution up to 5000:1
  • Programmable OVP Threshold
  • Programmable Input UVLO Threshold
  • Adjustable Soft-Start Time
  • Built-in LED Open and Short Protection
  • Built-in Schottky Diode Open and Short Protection
  • Built-in ISET Short Protection
  • Built-in IFB Short Protection
  • Thermal Shutdown

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open-in-new Find other Automotive LED drivers

Description

The TPS61196-Q1 provides a highly integrated solution for automotive LCD backlighting with an independent PWM dimming function for each string. This device is a current mode boost controller driving up to six WLED strings with multiple LEDs in series. Each string has an independent current regulator providing a LED current adjustable from 50 mA to 400 mA within ±1.5% matching accuracy. The minimal voltage at the current sink is programmable in the range of 0.3 V to 1 V to fit with different LED current settings. The input voltage range for the device is from 8 V to 30 V.

The TPS61196-Q1 adjusts the boost controller’s output voltage automatically to provide only the voltage required by the LED string with the largest forward voltage drop plus the minimum required voltage at that string’s IFB pin, thereby optimizing driver efficiency. Its switching frequency is programmed by an external resistor from 100 kHz to 800 kHz.

The TPS61196-Q1 supports direct PWM brightness dimming. Each string has an independent PWM control input. During the PWM dimming, the LED current is turned on or turned off at the frequency and duty cycle which are determined by the external PWM signal. The PWM frequency ranges from 90 Hz to 22 kHz.

The TPS61196-Q1 integrates overcurrent protection, output short-circuit protection, ISET short-to-ground protection, diode open and short protection, LED open and short protection, and overtemperature shutdown circuit. In addition, the TPS61196-Q1 can detect the IFB pin short to ground to protect the LED string. The device also provides programmable input undervoltage lockout threshold and output overvoltage protection threshold.

open-in-new Find other Automotive LED drivers
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Technical documentation

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No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet TPS61196-Q1 6-String 400-mA WLED Driver with Independent PWM Dimming For Each String datasheet Mar. 26, 2015
Application notes Some Guidelines and Tips for the LED Driver Application Aug. 14, 2019
White papers Powering automotive displays to create interactive driving experiences Dec. 21, 2017
Application notes PCB Layout Guideline for Automotive LED Drivers Apr. 07, 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
Technical articles Solving the automotive EMI issues in new cars with all the screens Sep. 10, 2014

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

The Texas Instruments TPS61196EVM-600 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS61196 , which are multi-channel WLED drivers providing highly integrated solutions for LCD TV backlight. The EVM is designed to operate from an input voltage source ranging (...)

Features
  • Multi-channel
  • Adaptive Boost output for LED voltage
  • Independent PWM dimming for Each String

Design tools & simulation

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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
HTSSOP (PWP) 28 View options

Ordering & quality

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