Calculation tool
TPS92692-Q1
high-accuracy LED controller with spread spectrum frequency modulation and internal PWM Generator
Data sheet
TPS92692-Q1
- 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.
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Technical documentation
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View all 8 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS92692, TPS92692-Q1 High Accuracy LED Controller With Spread Spectrum Frequency Modulation datasheet | PDF | HTML | 08 Mar 2017 |
| Application note | Automotive Front Headlight Selection Guide | PDF | HTML | 16 Apr 2021 | |
| Application note | Analog Thermal Foldback With LED Drivers | 10 Jun 2020 | ||
| Technical article | Designing daytime running lights, part 2: responding to an LED fault | PDF | HTML | 06 Dec 2018 | |
| Technical article | Designing daytime running lights, part 1: adding one-fail-all-fail LED fault detec | PDF | HTML | 04 Dec 2018 | |
| White paper | LED Drivers for Automotive Exterior Applications (Rev. B) | 27 Mar 2018 | ||
| Selection guide | 汽车外部照明应用的LED驱动器 | 15 Mar 2018 | ||
| 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
Simulation model
TPS92692-Q1 Boost and Buck Boost PSpice Transient Model (Rev. A)
SLVMC05A.ZIP (121 KB) - PSpice Model
Calculation tool
SLVC687 — TPS92692-Q1 Boost Design Calculator
Supported products & hardware
Products
Illumination LED drivers
Automotive LED drivers
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-01581 — Automotive Daytime Running Light Dual String LED Driver Reference Design with Current Balancing
This reference design is a dual string LED driver that implements an operational amplifier based circuit which balances the current in two LED rings. The operational amplifier circuit senses current in a reference string and uses feedback from a mirrored string to bias a MOSFET that regulates the (...)
Reference designs
TIDA-050002 — 55-W Dual Buck-Boost LED Driver Reference Design for Automotive High and Low Beam Headlight
This reference design describes a TPS92692-Q1 LED driver in a dual, high-beam and low-beam application with a single controller and power stage. The design operates in boost mode to provide the high beam and in boost to battery mode to provide the low beam. The single controller power stage design (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (PWP) | 20 | Ultra Librarian |
Ordering & quality
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