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TPS92692

ACTIVE

high accuracy LED controller with spread spectrum frequency modulation and internal PWM Generator

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Data sheet

TPS92692

ACTIVE
Data sheet Order now

Product details

Input voltage type DC/DC Topology Boost, Buck, Buck-Boost, Cuk, Flyback, SEPIC Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (max) (V) 65 Vout (min) (V) 3 Iout (max) (A) 5 Iq (typ) (mA) 1.8 Features Adjustable Switch Frequency, High Output Accuracy, Precision Dimming Control, Soft Start, Synchronization Pin, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Boost, Buck, Buck-Boost, Cuk, Flyback, SEPIC Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (max) (V) 65 Vout (min) (V) 3 Iout (max) (A) 5 Iq (typ) (mA) 1.8 Features Adjustable Switch Frequency, High Output Accuracy, Precision Dimming Control, Soft Start, Synchronization Pin, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Wide Input Voltage: 4.5 V to 65 V
  • Better than ± 4% LED Current Accuracy over –40°C to 150°C Junction Temperature Range
  • Spread Spectrum Frequency Modulation for Improved EMI
  • Comprehensive Fault Protection Circuitry with Current Monitor output and Open Drain Fault Flag Indicator
  • Internal Analog Voltage to PWM Duty Cycle Generator for stand-alone Dimming Operation
  • Compatible with Direct PWM Input with over 1000:1 Dimming Range
  • Analog LED Current Adjust Input (IADJ) with over 15:1 Contrast Ratio
  • Integrated P-Channel Driver to enable Series FET Dimming and LED Protection
  • TPS92692-Q1: Automotive Q100 Grade 1 Qualified
  • Wide Input Voltage: 4.5 V to 65 V
  • Better than ± 4% LED Current Accuracy over –40°C to 150°C Junction Temperature Range
  • Spread Spectrum Frequency Modulation for Improved EMI
  • Comprehensive Fault Protection Circuitry with Current Monitor output and Open Drain Fault Flag Indicator
  • Internal Analog Voltage to PWM Duty Cycle Generator for stand-alone Dimming Operation
  • Compatible with Direct PWM Input with over 1000:1 Dimming Range
  • Analog LED Current Adjust Input (IADJ) with over 15:1 Contrast Ratio
  • Integrated P-Channel Driver to enable Series FET Dimming and LED Protection
  • TPS92692-Q1: Automotive Q100 Grade 1 Qualified

The TPS92692 and TPS92692-Q1 are high accuracy peak current mode based controllers designed to support step-up/down LED driver topologies. The device incorporates a rail-to-rail current amplifier to measure LED current and spread spectrum frequency modulation technique for improved EMI performance.

This high performance LED controller can independently modulate LED current using either analog or PWM dimming techniques. Linear analog dimming response with over 15:1 range is obtained by varying the voltage across the high impedance analog adjust (IADJ) input. PWM dimming of LED current is achieved by directly modulating the DIM/PWM input pin with the desired duty cycle or by enabling the internal PWM generator circuit. The PWM generator translates the DC voltage at DIM/PWM pin to corresponding duty cycle by comparing it to the internal triangle wave generator. The optional PDRV gate driver output can be used to drive an external P-Channel series MOSFET.

The TPS92692 and TPS92692-Q1 devices support continuous LED status check through the current monitor (IMON) output. The devices also include an open drain fault indicator output to indicate LED overcurrent, output overvoltage and output undervoltage conditions.

The TPS92692 and TPS92692-Q1 are high accuracy peak current mode based controllers designed to support step-up/down LED driver topologies. The device incorporates a rail-to-rail current amplifier to measure LED current and spread spectrum frequency modulation technique for improved EMI performance.

This high performance LED controller can independently modulate LED current using either analog or PWM dimming techniques. Linear analog dimming response with over 15:1 range is obtained by varying the voltage across the high impedance analog adjust (IADJ) input. PWM dimming of LED current is achieved by directly modulating the DIM/PWM input pin with the desired duty cycle or by enabling the internal PWM generator circuit. The PWM generator translates the DC voltage at DIM/PWM pin to corresponding duty cycle by comparing it to the internal triangle wave generator. The optional PDRV gate driver output can be used to drive an external P-Channel series MOSFET.

The TPS92692 and TPS92692-Q1 devices support continuous LED status check through the current monitor (IMON) output. The devices also include an open drain fault indicator output to indicate LED overcurrent, output overvoltage and output undervoltage conditions.
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Type Title Date
* Data sheet TPS92692, TPS92692-Q1 High Accuracy LED Controller With Spread Spectrum Frequency Modulation datasheet PDF | HTML 08 Mar 2017
EVM User's guide TPS92692 Boost and Boost-to-Battery LED Driver Evaluation Board 10 Mar 2017

Design & development

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

Evaluation board

TPS92692EVM-880 — TPS92692-Q1 Boost and Boost-to-Battery LED Driver Evaluation Module

The TPS92692EVM-880 is a fully assembled and tested LED driver that can be configured as either a Boost or a Boost-to-Battery topology to power a single string of series connected LEDs. Acurate closed-loop LED current regulation is achieved using a low-offset rail-to-rail current sense amplifier (...)

User guide: PDF
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Simulation model

TPS92692-Q1 Boost and Buck Boost PSpice Transient Model (Rev. A)

SLVMC05A.ZIP (121 KB) - PSpice Model
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Simulation model

Thermal Foldback TINA-TI Spice Reference Design

SLOM480.ZIP (38 KB) - TINA-TI Reference Design
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Calculation tool

SLVC686 — TPS92692-Q1 Buck-Boost Design Calculator

Supported products & hardware

Supported products & hardware

Products
Illumination LED drivers
TPS92692 — high accuracy LED controller with spread spectrum frequency modulation and internal PWM Generator
Automotive LED drivers
TPS92692-Q1 — high-accuracy LED controller with spread spectrum frequency modulation and internal PWM Generator
Download
Calculation tool

SLVC687 — TPS92692-Q1 Boost Design Calculator

Supported products & hardware

Supported products & hardware

Products
Illumination LED drivers
TPS92692 — high accuracy LED controller with spread spectrum frequency modulation and internal PWM Generator
Automotive LED drivers
TPS92692-Q1 — high-accuracy LED controller with spread spectrum frequency modulation and internal PWM Generator
Download
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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