TPS92691-Q1
- Wide Input Voltage: 4.5 V to 65 V
- Wide Output Voltage Range: 2 V to 65 V
- Low Input Offset Rail-to-Rail Current Sense Amplifier
- Better than ±3% LED Current Accuracy over 25°C to 140°C Junction Temperature Range
- Compatible With High-Side and Low-Side Current Sense Implementations
- High-Impedance Analog LED Current Adjust Input (IADJ) With over 15:1 Contrast Ratio
- Over 1000:1 Series FET PWM Dimming Ratio With Integrated Series N-Channel Dim Driver Interface
- Continuous LED Current Monitor Output for System Fault Detection and Diagnoses
- Programmable Switching Frequency With External Clock Synchronization Capability
- Programmable Soft-Start and Slope Compensation
- Comprehensive Fault Protection Circuitry Including VCC Undervoltage Lockout (UVLO), Output Overvoltage Protection (OVP), Cycle-by-Cycle Switch Current Limit, and Thermal Protection
- TPS92691-Q1: Automotive Q100 Grade 1 Qualified
The TPS92691/-Q1 is a versatile LED controller that can support a range of step-up or step-down driver topologies. The device implements a fixed-frequency peak current mode control technique with programmable switching frequency, slope compensation, and soft-start timing. It incorporates a high voltage (65-V) rail-to-rail current sense amplifier that can directly measure LED current using either a high-side or a low-side series sense resistor. The amplifier is designed to achieve low input offset voltage and attain better than ±3% LED current accuracy over junction temperature range of 25°C to 140°C and output common-mode voltage range of 0 to 60 V.
LED current can be independently modulated using either analog or PWM dimming techniques. Linear analog dimming response with 15:1 range is obtained by varying the voltage from 140 mV to 2.25 V across the high impedance analog adjust (IADJ) input. PWM dimming of LED current is achieved by modulating the PWM input pin with the desired duty cycle and frequency. Optional DDRV gate driver output can be used to enable series FET dimming functionality to get over 1000:1 contrast ratio.
The TPS92691/-Q1 supports continuous LED status check through the current monitor (IMON) output. This allows for LED short circuit or open circuit detection and protection. Additional fault protection features include VCC UVLO, output OVP, switch cycle-by-cycle current limit, and thermal protection.
관심 가지실만한 유사 제품
비교 대상 장치와 유사한 기능
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | TPS92691/-Q1 Multi-Topology LED Driver With Rail-to-Rail Current Sense Amplifier datasheet | PDF | HTML | 2015/12/11 |
White paper | LED Drivers for Automotive Exterior Applications (Rev. B) | 2018/03/27 | ||
Selection guide | 汽车外部照明应用的LED驱动器 | 2018/03/15 | ||
Technical article | Lighting the road ahead: LEDs in automotive front lighting | PDF | HTML | 2016/09/29 | |
EVM User's guide | TPS92691 Boost and Boost-to-Battery LED Driver Evaluation Board | 2016/03/11 | ||
EVM User's guide | TPS92691 SEPIC LED Driver Evaluation Board | 2015/12/09 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
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The TPS92691EVM-001 is a fully assembled and tested SEPIC LED driver designed to power a single string of series connected LEDs. Acurate closed-loop LED current regulation is achieved using a low-offset rail-to-rail curren sense amplifier that is compatible with either a high side or a low side (...)
TPS92691EVM-752 — TPS92691-Q1 부스트 및 부스트-배터리 LED 드라이버 평가 보드
The TPS92691EVM-752 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. Accurate closed-loop LED current regulation is achieved using a low-offset rail-to-rail current-sense amplifier (...)
TPS92691-Q1 Boost and SEPIC PSpice Transient Model (Rev. A)
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
TIDA-01382 — 선형 열 폴드백을 지원하는 차량용 주간 주행등(DRL) LED 드라이버 레퍼런스 디자인
PMP15003 — 애프터마켓 조명 바, 스팟 조명 및 플러드 조명을 위한 조광 가능 LED 드라이버 레퍼런스 디자인
PMP15027 — 차량용 조명 및 ADAS 시스템을 위한 고전류 SEPIC 레퍼런스 설계
TIDA-01381 — LED 헤드라이트를 위한 차량용 다중 채널 온도 감지 레퍼런스 디자인
TIDA-01183 — 오토모티브 조명을 위한 정밀 PWM 조광 LED 드라이버 레퍼런스 디자인
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
HTSSOP (PWP) | 16 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.