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Product details

Parameters

Topology Boost with Current Sink, Sepic Vin (Min) (V) 4.5 Vin (Max) (V) 40 Vout (Min) (V) 6 Vout (Max) (V) 40 Iout (Max) (A) 0.4 Iq (Typ) (mA) 5 Switching frequency (Max) (kHz) 2200 Operating temperature range (C) -40 to 125 Features Boost Sync, Global dimming, Spread Spectrum open-in-new Find other Automotive LED drivers

Package | Pins | Size

HTSSOP (PWP) 20 42 mm² 6.5 x 6.4 open-in-new Find other Automotive LED drivers

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
  • Input Voltage Operating Range 4.5 V to 40 V
  • Four High-Precision Current Sinks
    • Current Matching 1% (Typical)
    • LED String Current up to 100 mA per Channel
    • Outputs can be Combined Externally for Higher Current per String
  • High Dimming Ratio of 10 000:1 at 100 Hz
  • Integrated Boost/SEPIC Converter for LED String Power
    • Output Voltage up to 45 V
    • Switching Frequency 300 kHz to 2.2 MHz
    • Switching Synchronization Input
    • Spread Spectrum for Lower EMI
  • Extensive Fault Detection Features
    • Fault Output
    • Input Voltage OVP and UVLO
    • Open and Shorted LED Fault Detection
    • Thermal Shutdown
  • Minimum Number of External Components

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open-in-new Find other Automotive LED drivers

Description

The TPS61194-Q1 is an automotive high-efficiency, low-EMI, easy-to-use LED driver with integrated DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four high-precision current sinks that can be combined for higher current capability.

The DC-DC converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the TPS61194-Q1 to avoid disturbance for AM radio band.

The input voltage range for the TPS61194-Q1 is from 4.5 V to 40 V to support automotive stop/start and load dump condition. The TPS61194-Q1 integrates extensive fault detection features.

open-in-new Find other Automotive LED drivers
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Exact equivalent in functionality and parametrics to the compared device:
LP8867C-Q1 ACTIVE Highly-integrated 4-channel 120-mA automotive LED driver This product is a 4-ch 120mA enhanced version with higher power output.

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS61194-Q1 Low-EMI Automotive LED Driver With Four 100-mA Channels datasheet (Rev. D) Jun. 09, 2017
Application note Some Guidelines and Tips for the LED Driver Application Aug. 14, 2019
White paper Powering automotive displays to create interactive driving experiences Dec. 21, 2017
Application note 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
User guide Using the TPS61194xEVM Evaluation Module Jan. 05, 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

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
79
Description

The TPS61194Q1EVM evaluation module (EVM) helps designers evaluate the operation and performance of this device.  The  TPS61194Q1EVM uses the TPS61194-Q1 to drive up to 4 LED strings (up to 12 LEDs each, 36 LEDs together) for LCD backlighting with high efficiency.  Information about (...)

Features
  • Input voltage 4.5 to 40V
  • Output voltage up to 45V
  • Four LED channels
  • Output current 100 mA/channel
  • Switching frequency 300 kHz to 2.2 MHz

Design tools & simulation

SIMULATION MODEL Download
SNVMAZ4B.ZIP (185 KB) - PSpice 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
  • (...)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 20 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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