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TPS92690

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N-channel controller for dimmable LED Drives with low-side current sense

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N-channel controller for dimmable LED Drives with low-side current sense

TPS92690

ACTIVE
Data sheet Order now

Product details

Parameters

Input voltage (type) DC/DC Topology Boost, Boost Controller, Cuk, Flyback, Sepic Vin (Min) (V) 4.5 Vin (Max) (V) 75 Iout (Max) (A) 5 Iq (Typ) (mA) 2 Features Adjustable Switch Frequency, Enable/Shutdown, Soft Start, Synchronization Pin, Thermal Shutdown Number of LEDs 24 Operating temperature range (C) -40 to 125 Dimming method Analog, PWM open-in-new Find other Illumination LED drivers

Package | Pins | Size

HTSSOP (PWP) 16 32 mm² 5 x 6.4 open-in-new Find other Illumination LED drivers

Features

  • Input Voltage Range from 4.5 to 75 V
  • Adjustable Current Sense (50 to 500 mV)
  • Low-Side Current Sensing
  • 2-Ω MOSFET Gate Driver
  • Input Undervoltage Protection
  • Output Overvoltage Protection
  • Cycle-by-Cycle Current Limit
  • PWM Dimming Input
  • Programmable Oscillator Frequency
  • External Synchronization Capability
  • Slope Compensation
  • Programmable Soft-Start Function
  • HTSSOP (PWP), 16-Pin, Exposed Pad Package
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Description

The TPS92690 device is a high-voltage, low-side NFET controller with an adjustable output current sense resistor voltage. Ideal for LED drivers, it contains all of the features needed to implement current regulators based on boost, SEPIC, flyback, and Cuk topologies.

Output current regulation is based on peak current-mode control supervised by a control loop. This methodology eases the design of loop compensation while providing inherent input voltage feed-forward compensation. The TPS92690 device includes a high-voltage start-up regulator that operates over a wide input range between 4.5 and 75 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2 MHz. The TPS92690 device includes an error amplifier, precision reference, cycle-by-cycle current limit, and thermal shutdown.

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TPS92691 ACTIVE TPS92691 multi-topology LED driver with rail-to-rail current sense amplifier This product is a multi-topology low-side NFET LED controller with rail-to-rail current sense capability.

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS92690 N-Channel Controller for Dimmable LED Drives With Low-Side Current Sense datasheet (Rev. A) Nov. 12, 2014
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
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
User guide TPS92690EVM-506 Boost Evaluation Module Oct. 16, 2012

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
49
Description
The TPS92690EVM evaluation module is a constant current LED driver that can support applications up to 35W (35V at 1A). The LED current is pre-set at 500mA and the output voltage range is 20V to 35V. The input voltage range for this design is 8V to 19V which is typical for automotive applications as (...)
Features
  • Wide input voltage range
  • Adjustable current sense (analog dimming) input
  • PWM dimming input
  • Low power shutdown
  • SYNC input
  • Current mode control with slope compensation
  • Adjustable current limit
  • Low side current sense
  • Input under-voltage lockout
  • Output over-voltage protection
  • Precision reference
View details

Design tools & simulation

SIMULATION MODEL Download
SLVM814.ZIP (45 KB) - PSpice Model
SIMULATION MODEL Download
SLVMAP7.TSC (132 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVMAP8.ZIP (32 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
  • (...)
View details
CALCULATION TOOL Download
SLVC467.ZIP (44 KB)

Reference designs

REFERENCE DESIGNS Download
Car Battery to Headlight LED Driver Reference Design
PMP11338 — The TPS92690 controller is a controller used in a Cuk topology for car battery (8 to 16Vdc) conversion to ~16V @ 32W for LED driving. This provides a low-cost, compact solution for automotive headlights.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Wide Input Voltage Range Automotive Cuk LED Driver Reference Design (35V @ 0.75A)
PMP6012 — PMP6012 reference design presents the TPS92690Q1 DC-DC controller driving a 18V to 35V string of LEDs at 750mA of current in a Cuk configuration. The Cuk topology features continuous input and output currents which helps reduce EMI and also allows one end of the LED string to connect to common (...)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 16 View options

Ordering & quality

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  • Ongoing reliability monitoring

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