Calculation tool
Data sheet
TPS92682-Q1
- 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.
Technical documentation
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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 (...)
Evaluation board
TPS92664EVM-216 — TPS92664-Q1 evaluation module for LED matrix manager with internal EEPROM and oscillator
The TPS92664 evaluation module (EVM) features the TPS92664 16-channel matrix manager device. The EVM kit contains three PCBs and associated cabling to provide and end-to-end power solution for a typical matrix headlight system. The PSIL216 PCB contains four TPS92664 devices which provide pixel (...)
Evaluation board
TPS92667EVM-243 — TPS92667-Q1 evaluation module for LED matrix managers
The TPS92667-Q1 evaluation module features the TPS92667-Q1 and TPS92665-Q1 16-channel matrix manager devices. The EVM kit contains three PCBs and associated cabling to provide and end-to-end power solution for a typical matrix headlight system. The PSIL243 PCB contains one TPS9265-Q1 device and (...)
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 (...)
User guide: PDF
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 (...)
User guide: PDF
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. (...)
Calculation tool
SLUC690 — TPS92682-Q1 CV BOOST 2-Phase Calculator
Supported products & hardware
Products
Automotive LED drivers
Design tool
LED-CONTROLLER-GUI — TPS92518-Q1, TPS92520-Q1, and TPS92682-Q1 evaluation software
TPS92518-Q1, TPS92520-Q1, and TPS92682-Q1 evaluation software
Supported products & hardware
Products
Automotive LED drivers
Hardware development
Evaluation board
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 | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (DAP) | 32 | Ultra Librarian |
| VQFN (RHB) | 32 | Ultra Librarian |
| VQFNP (RHM) | 32 | Ultra Librarian |
Ordering & quality
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Information included:
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