計算工具
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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檢視所有 8 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS92692, TPS92692-Q1 High Accuracy LED Controller With Spread Spectrum Frequency Modulation datasheet | PDF | HTML | 2017年 3月 8日 |
| Application note | Automotive Front Headlight Selection Guide | PDF | HTML | 2021年 4月 16日 | |
| Application note | Analog Thermal Foldback With LED Drivers | 2020年 6月 10日 | ||
| Technical article | Designing daytime running lights, part 2: responding to an LED fault | PDF | HTML | 2018年 12月 6日 | |
| Technical article | Designing daytime running lights, part 1: adding one-fail-all-fail LED fault detec | PDF | HTML | 2018年 12月 4日 | |
| White paper | LED Drivers for Automotive Exterior Applications (Rev. B) | 2018年 3月 27日 | ||
| Selection guide | 汽车外部照明应用的LED驱动器 | 2018年 3月 15日 | ||
| EVM User's guide | TPS92692 Boost and Boost-to-Battery LED Driver Evaluation Board | 2017年 3月 10日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
TPS92692EVM-880 — TPS92692-Q1 升壓和升壓至電池 LED 驅動器評估模組
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 (...)
使用指南: PDF
模擬型號
TPS92692-Q1 Boost and Buck Boost PSpice Transient Model (Rev. A)
SLVMC05A.ZIP (121 KB) - PSpice Model
計算工具
SLVC687 — TPS92692-Q1 Boost Design Calculator
支援產品和硬體
產品
照明 LED 驅動器
汽車 LED 驅動器
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
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 (...)
參考設計
TIDA-01581 — 具有電流平衡功能的汽車日間行車燈雙字串 LED 驅動器參考設計
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 (...)
參考設計
TIDA-050002 — 適用於汽車遠光燈和近光燈 55-W 雙降壓-升壓 LED 驅動器參考設計
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 (...)
| 封裝 | 引腳 | 下載 |
|---|---|---|
| HTSSOP (PWP) | 20 | 檢視選項 |
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