Product details

Number of channels (#) 2 Topology Boost Controller, Buck Controller, Buck-Boost Controller, Cuk Controller, Flyback Controller, Sepic Controller Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (C) -40 to 125 Vin (Min) (V) 4.5 Vin (Max) (V) 65 Vout (Min) (V) 3 Vout (Max) (V) 65 Iout (Max) (A) 5 Iq (Typ) (mA) 2.2 Switching frequency (Max) (kHz) 1000 Features Adjustable Switch Frequency, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Spread Spectrum, Synchronization Pin, Thermal Shutdown
Number of channels (#) 2 Topology Boost Controller, Buck Controller, Buck-Boost Controller, Cuk Controller, Flyback Controller, Sepic Controller Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (C) -40 to 125 Vin (Min) (V) 4.5 Vin (Max) (V) 65 Vout (Min) (V) 3 Vout (Max) (V) 65 Iout (Max) (A) 5 Iq (Typ) (mA) 2.2 Switching frequency (Max) (kHz) 1000 Features Adjustable Switch Frequency, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Spread Spectrum, Synchronization Pin, Thermal Shutdown
HTSSOP (DAP) 32 68 mm² 11 x 6.1 VQFN (RHB) 32 25 mm² 5 x 5 VQFNP (RHM) 32 25 mm² 5 x 5
  • AEC-Q100 grade 1 qualified
  • Functional Safety-Capable
  • Wide input voltage range: 4.5 V to 65 V
  • ± 4% LED current accuracy over –40°C to 150°C junction temperature range
  • SPI communication interface
  • SPI programmable features:
    • Spread spectrum for improved EMI
    • Soft-start timing
    • ILED current and output voltage settings
    • Current limit, overvoltage, fault-timer
    • Single versus dual phase
    • CV and CC mode configuration
  • Dual channel peak-current-mode (PCM) controller
  • Low input offset rail-to-rail current sense amplifier
  • Analog dimming
  • External series FET PWM dimming with integrated P-channel driver interface
    • Over 1000:1 PWM dimming range
  • Open-drain fault flag indicator per channel
  • Up to 1-MHz programmable switching frequency with external clock synchronization capability
  • Comprehensive programmable fault protection circuitry
  • Wettable flank with VQFN package
  • AEC-Q100 grade 1 qualified
  • Functional Safety-Capable
  • Wide input voltage range: 4.5 V to 65 V
  • ± 4% LED current accuracy over –40°C to 150°C junction temperature range
  • SPI communication interface
  • SPI programmable features:
    • Spread spectrum for improved EMI
    • Soft-start timing
    • ILED current and output voltage settings
    • Current limit, overvoltage, fault-timer
    • Single versus dual phase
    • CV and CC mode configuration
  • Dual channel peak-current-mode (PCM) controller
  • Low input offset rail-to-rail current sense amplifier
  • Analog dimming
  • External series FET PWM dimming with integrated P-channel driver interface
    • Over 1000:1 PWM dimming range
  • Open-drain fault flag indicator per channel
  • Up to 1-MHz programmable switching frequency with external clock synchronization capability
  • Comprehensive programmable fault protection circuitry
  • Wettable flank with VQFN package

The TPS92682-Q1 is a dual-channel, peak current-mode controller with SPI communication interface. The device is programmable to operate in constant-voltage (CV) or constant-current (CC) modes.

In CV mode, TPS92682-Q1 can be programmed to operate as two independent or dual-phase Boost voltage regulators. The output voltage can be programmed using an external resistor voltage divider, and a SPI-programmable 8-bit DAC.

In CC mode, the device is designed to support dual channel step-up or step-down LED driver topologies. LED current can be independently modulated using analog or PWM dimming techniques. Analog dimming with over 28:1 range is obtained using a programmable 8-bit DAC. PWM dimming of LED current is achieved either by directly modulating the PWM input pins with the desired duty cycle, or using a SPI-programmable 10-bit PWM counter. The optional PDRV gate driver output can be used to drive an external P-Channel series MOSFET.

The TPS92682-Q1 incorporates an advanced SPI-programmable diagnostic and fault protection mechanism including: cycle-by-cycle current limit, output overvoltage and undervoltage protection, ILED overcurrent protection, and thermal warning. The device also includes an open-drain fault indicator output per channel.

The TPS92682-Q1 includes an LH pin, when pulled high, initiates the limp home (LH) condition. In LH mode, the device uses a separate set of SPI-programmed registers.

The TPS92682-Q1 is a dual-channel, peak current-mode controller with SPI communication interface. The device is programmable to operate in constant-voltage (CV) or constant-current (CC) modes.

In CV mode, TPS92682-Q1 can be programmed to operate as two independent or dual-phase Boost voltage regulators. The output voltage can be programmed using an external resistor voltage divider, and a SPI-programmable 8-bit DAC.

In CC mode, the device is designed to support dual channel step-up or step-down LED driver topologies. LED current can be independently modulated using analog or PWM dimming techniques. Analog dimming with over 28:1 range is obtained using a programmable 8-bit DAC. PWM dimming of LED current is achieved either by directly modulating the PWM input pins with the desired duty cycle, or using a SPI-programmable 10-bit PWM counter. The optional PDRV gate driver output can be used to drive an external P-Channel series MOSFET.

The TPS92682-Q1 incorporates an advanced SPI-programmable diagnostic and fault protection mechanism including: cycle-by-cycle current limit, output overvoltage and undervoltage protection, ILED overcurrent protection, and thermal warning. The device also includes an open-drain fault indicator output per channel.

The TPS92682-Q1 includes an LH pin, when pulled high, initiates the limp home (LH) condition. In LH mode, the device uses a separate set of SPI-programmed registers.

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Technical documentation

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Type Title Date
* Data sheet TPS92682-Q1 Dual-Channel Constant-Voltage and Constant-Current Controller with SPI Interface datasheet (Rev. C) 09 Mar 2021
Application note Automotive Front Headlight Selection Guide 16 Apr 2021
User guide TPS92682EVMEVM Constant Current and Constant Voltage SEPIC Controller 13 Apr 2021
Certificate TPS92682EVM-125 EU RoHS Declaration of Conformity (DoC) 16 Dec 2020
User guide LEDMCUEVM-132 MSP432™ LED Controller Evaluation Module 06 Oct 2020
White paper Streamlining Functional Safety Certification in Automotive and Industrial 09 Jun 2020
White paper 簡化汽車及工業領域的功 能安全認證 09 Jun 2020
White paper 자동차 및 산업 분야의 기능적 안전성 인증 간소화 09 Jun 2020
Functional safety information TPS92682-Q1 (HTSSOP) Functional Safety FIT Rate, FMD and Pin FMA 22 May 2020
Functional safety information TPS92682-Q1 (VQFN) Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) 20 Apr 2020
Technical article How to flexibly configure an LED driver for automotive headlights 21 Nov 2019
Technical article How semiconductor technologies are changing automotive lighting roadmaps 24 Oct 2019
White paper An ECU Architecture for Adaptive Headlights 06 Aug 2019
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

Design & development

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

Evaluation board

LEDMCUEVM-132 — MSP432E401Y MCU communications board for LED evaluation modules

The LEDMCUEVM-132 implements SPI communications that support multiple devices on the bus, UART communications for the LMMs family of devices, CAN transceiver for UART to control LMM family of devices, 4 PWM signals for dimming, multiple IOs, isolated 5-V supply, digital isolators, and a standard CAN (...)

Out of stock on TI.com
Evaluation board

TPS92682EVM-069 — TPS92682-Q1 constant voltage 2-phase boost evaluation module

The TPS92682EVM-069 features a two phase, constant voltage boost regulator based on the TPS92682 dual channel controller with SPI interface device. It is designed to operate with an input voltage from 6V to 42V and total power output of 90W with max output voltage 60V. The EVM may support maximum (...)
In stock
Limit: 5
Evaluation board

TPS92682EVM-070 — TPS92682-Q1 constant current 2-channel boost and boost-to-battery evaluation module

The TPS92682EVM-070 features a two channel, constant current boost and boost-to-battery regulator based on the TPS92682 dual channel controller with SPI interface device. It is designed to operate with an input voltage from 6V to 20V and total power output of 40W with max output voltage 60V. The EVM (...)

In stock
Limit: 2
Evaluation board

TPS92682EVM-125 — TPS92682 constant current and constant voltage SEPIC controller (HTSSOP package) evaluation module

The TPS92682EVM-125 features a two-channel, constant voltage (CH1) and constant current (CH2) coupled inductor SEPIC regulator based on the TPS92682 two-channel controller with SPI interface device. It is designed to operate with an input voltage from 7-V to 28-V and maximum output power of 15 W (...)

In stock
Limit: 2
Support software

TPS92682-Q1 CV 1-Phase Boost Calculator

SLUC689.ZIP (206 KB)
Support software

TPS92682-Q1 CV BOOST 2-Phase Calculator

SLUC690.ZIP (206 KB)
Simulation model

TPS92682 PSpice Transient Model

SLUM695.ZIP (294 KB) - PSpice Model
Simulation model

TPS92682 Simplis Model

SLUM696.ZIP (1214 KB) - SIMPLIS Model
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 (...)
Reference designs

TIDA-050029 — 45-W, 15-W dual SEPIC LED driver reference design for automotive lighting

This reference design showcases the TPS92682-Q1 dual-channel LED controller used in an automotive front lighting application with high beam (HB) and low beam (LB), daytime running light (DRL), and position (POS) light functionality. The design uses one TPS92682-Q1 device to implement a single-stage (...)
Reference designs

TIDA-050040 — Automotive LED headlight driver module for halogen replacement reference design

This reference design showcases the TPS92682 and the TPS92520 as a fully self functional three-channel LED driver for headlight applications.  The design is intended to be a low-cost halogen headlight module replacement compatible with an automotive body control module.  The three LED (...)
Reference designs

TIDA-050030 — 120W dual-stage matrix compatible automotive headlight ECU reference design

This reference design details a headlight ECU using an interleaved boost in voltage regulation mode feeding four synchronous buck channels. This design is also capable of matrix headlight control and is mounted to a heatsink and enclosure to emulate an automotive headlight ECU. The TPS92682-Q1 is (...)
Package Pins Download
HTSSOP (DAP) 32 View options
VQFN (RHB) 32 View options
VQFN (RHM) 32 View options

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  • Qualification summary
  • Ongoing reliability monitoring

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