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Product details

Parameters

Topology Boost Controller, Buck Controller, Buck-Boost Controller, Cuk Controller, Flyback Controller, Sepic Controller Channels (#) 2 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 LED current per channel (mA) 5000 Switching frequency (Max) (kHz) 1000 Operating temperature range (C) -40 to 125 Features Adjustable Switch Frequency, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Spread Spectrum, Synchronization Pin, Thermal Shutdown Applications Adaptive Headlamp, Daytime Running, Fog, Headlamp, Position, Turn Rating Automotive open-in-new Find other Automotive LED drivers

Package | Pins | Size

HTSSOP (DAP) 32 VQFNP (RHM) 32 25 mm² 5 x 5 open-in-new Find other Automotive LED drivers

Features

  • 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

All trademarks are the property of their respective owners.

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Description

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

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet TPS92682-Q1 Dual Channel Constant Voltage and Constant Current Controller datasheet (Rev. B) Jul. 16, 2020
White papers Streamlining Functional Safety Certification in Automotive and Industrial Jun. 09, 2020
Application notes TPS92682-Q1 (HTSSOP) Functional Safety FIT Rate, FMD and Pin FMA May 22, 2020
Application notes TPS92682-Q1 (VQFN) Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) Apr. 20, 2020
Technical articles How to flexibly configure an LED driver for automotive headlights Nov. 21, 2019
Technical articles How semiconductor technologies are changing automotive lighting roadmaps Oct. 23, 2019
White papers An ECU Architecture for Adaptive Headlights Aug. 06, 2019
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

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
89
Description
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 (...)
Features
  • Supports 6V - 42V input
  • Programmable output voltage upto 60V
  • Programmable spread spectrum for EMI mitigation
  • SPI interface for fault monitoring, and fault handling
  • GUI provides computer inteface and design tool
EVALUATION BOARDS Download
document-generic User guide
89
Description

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 (...)

Features
  • Supports 6V - 20V input
  • Programmable output (LED) current
  • Programmable PWM dimming
  • Programmable spread spectrum for EMI mitigation
  • SPI interface for fault monitoring, and fault handling
  • GUI provides computer inteface and design tool

Software development

SUPPORT SOFTWARE Download
SLUC689.ZIP (206 KB)
SUPPORT SOFTWARE Download
SLUC690.ZIP (206 KB)

Design tools & simulation

SIMULATION MODELS Download
SLUM695.ZIP (294 KB) - PSpice Model
SIMULATION MODELS Download
SLUM696.ZIP (1214 KB) - SIMPLIS Model
SIMULATION TOOLS 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
  • (...)

Reference designs

REFERENCE DESIGNS Download
Automotive LED headlight driver module for halogen replacement reference design
TIDA-050040 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
45-W, 15-W dual SEPIC LED driver reference design for automotive lighting
TIDA-050029 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
120W dual-stage matrix compatible automotive headlight ECU reference design
TIDA-050030 — 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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HTSSOP (DAP) 32 View options
VQFN (RHM) 32 View options

Ordering & quality

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