Product details

Input voltage (type) DC/DC Topology Buck Vin (Min) (V) 10 Vin (Max) (V) 80 Iout (Max) (A) 5 Iq (Typ) (mA) 2.2 Features Adjustable Switch Frequency, Enable/Shutdown Operating temperature range (C) -40 to 125 Dimming method 2-Wire, Analog, PWM
Input voltage (type) DC/DC Topology Buck Vin (Min) (V) 10 Vin (Max) (V) 80 Iout (Max) (A) 5 Iq (Typ) (mA) 2.2 Features Adjustable Switch Frequency, Enable/Shutdown Operating temperature range (C) -40 to 125 Dimming method 2-Wire, Analog, PWM
HTSSOP (PWP) 20 42 mm² 6.5 x 6.4
  • Input Voltage: Up to 80 V
  • Two-Output LED Current Controller
  • LED Currents Trimmed Through One-Time Programmable (OTP) ROM with I2C Interface
  • Adjustable SADJ and LADJ Pins for PWM Dimming of Each LED String
  • Input Undervoltage Lockout and Output Overvoltage Protection
  • Enable On/Off
  • Accurate 3.0-V Reference Voltage
  • > 95% Efficiency
  • Thermal Shutdown Protection
  • 20-pin TSSOP Exposed Pad Package
  • Input Voltage: Up to 80 V
  • Two-Output LED Current Controller
  • LED Currents Trimmed Through One-Time Programmable (OTP) ROM with I2C Interface
  • Adjustable SADJ and LADJ Pins for PWM Dimming of Each LED String
  • Input Undervoltage Lockout and Output Overvoltage Protection
  • Enable On/Off
  • Accurate 3.0-V Reference Voltage
  • > 95% Efficiency
  • Thermal Shutdown Protection
  • 20-pin TSSOP Exposed Pad Package

The TPS92660 is a two-output LED driver with one time programmable (OTP) ROM and I2C interface for LED current trim. The current trim provides a way for LED fixture manufacturers to produce LED lighting fixtures at a consistent lumen output without binning LEDs.

One output of the device is a non-synchronous buck controller which is used to regulate current of higher power white LEDs. The other output of the device is a linear regulator controller which is used to regulate current of lower power red LEDs. The TPS92660 is used for applications of controlled CCT (correlated color temperature) LED lights by mixing white LEDs with red LEDs.

This device is available in a 20-pin, TSSOP exposed pad package.

The TPS92660 is a two-output LED driver with one time programmable (OTP) ROM and I2C interface for LED current trim. The current trim provides a way for LED fixture manufacturers to produce LED lighting fixtures at a consistent lumen output without binning LEDs.

One output of the device is a non-synchronous buck controller which is used to regulate current of higher power white LEDs. The other output of the device is a linear regulator controller which is used to regulate current of lower power red LEDs. The TPS92660 is used for applications of controlled CCT (correlated color temperature) LED lights by mixing white LEDs with red LEDs.

This device is available in a 20-pin, TSSOP exposed pad package.

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Technical documentation

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Type Title Date
* Data sheet Two-String LED Driver with I2C/EPROM Current Trim datasheet 02 Apr 2013
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article Here's how body electronics and lighting technology are changing the driving experience 26 Sep 2016
Technical article LED brightness adjustment: high-frequency PWM dimming 26 Aug 2016
Technical article Take better selfies with innovative LED flashes 18 Nov 2014
Technical article Solving the automotive EMI issues in new cars with all the screens 11 Sep 2014
EVM User's guide Using the TPS92660EVM 15 Nov 2012

Design & development

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

Evaluation board

TPS92660EVM — Two String LED Driver with I2C/EPROM Current Trim Evaluation Module Board

Two String LED Driver with I2C/EPROM Current Trim Evaluation Module Board

The EVM consists of one non-synchronous constant current buck converter with input voltage up to 80VDC and one constant current linear regulator with input voltage up to 60VDC. LED currents can be trimmed by the I2C (...)

User guide: PDF
Not available on TI.com
Calculation tool

TPS92660 Design Tool

SLVC493.ZIP (123 KB)
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 (...)
Package Pins Download
HTSSOP (PWP) 20 View options

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