전원 관리 LED 드라이버 차량용 LED 드라이버

TPS92691-Q1

활성

레일 투 레일 전류 감지 증폭기를 갖춘 오토모티브 멀티 토폴로지 LED 드라이버

제품 상세 정보

Number of channels 1 Topology Boost Controller, Buck Controller, Buck-Boost Controller, Cuk Controller, Flyback Controller, SEPIC Controller Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (min) (V) 3 Vout (max) (V) 65 Iout (max) (A) 5 Iq (typ) (mA) 1.5 Switching frequency (max) (kHz) 1000 Features Adjustable Switch Frequency, Synchronization Pin, Thermal shutdown
Number of channels 1 Topology Boost Controller, Buck Controller, Buck-Boost Controller, Cuk Controller, Flyback Controller, SEPIC Controller Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (min) (V) 3 Vout (max) (V) 65 Iout (max) (A) 5 Iq (typ) (mA) 1.5 Switching frequency (max) (kHz) 1000 Features Adjustable Switch Frequency, Synchronization Pin, Thermal shutdown
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • 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
  • 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.

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.

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS92692 활성 확산 스펙트럼 주파수 모듈레이션 및 내부 PWM 제너레이터와 정확도가 높은 LED 컨트롤러 Similar in performance with spread spectrum frequency modulation.
TPS92692-Q1 활성 확산 스펙트럼 주파수 모듈레이션 및 내부 PWM 제너레이터를 지원하는 정확도가 높은 LED 컨트롤러 Similar in performance with spread spectrum frequency modulation.

기술 자료

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6개 모두 보기
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.

평가 보드

TPS92691EVM-001 — TPS92691 SEPIC LED 드라이버 평가 보드

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 (...)

사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

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 (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

TPS92691-Q1 Boost and SEPIC PSpice Transient Model (Rev. A)

SLVMBE8A.ZIP (153 KB) - PSpice Model
계산 툴

SLVC671 TPS92691 Boost Design Calculator

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
조명 LED 드라이버
TPS92691 TPS92691 레일-투-레일 전류 감지 증폭기와 멀티 토폴로지 LED 드라이버
차량용 LED 드라이버
TPS92691-Q1 레일 투 레일 전류 감지 증폭기를 갖춘 오토모티브 멀티 토폴로지 LED 드라이버
시뮬레이션 툴

PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®

TI용 PSpice®는 아날로그 회로의 기능을 평가하는 데 사용되는 설계 및 시뮬레이션 환경입니다. 완전한 기능을 갖춘 이 설계 및 시뮬레이션 제품군은 Cadence®의 아날로그 분석 엔진을 사용합니다. 무료로 제공되는 TI용 PSpice에는 아날로그 및 전력 포트폴리오뿐 아니라 아날로그 행동 모델에 이르기까지 업계에서 가장 방대한 모델 라이브러리 중 하나가 포함되어 있습니다.

TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
레퍼런스 디자인

TIDA-01382 — 선형 열 폴드백을 지원하는 차량용 주간 주행등(DRL) LED 드라이버 레퍼런스 디자인

The TIDA-01382 reference design is a precision pulse width modulation (PWM) dimming solution for daytime running lights (DRL) including thermal foldback without requiring a microcontroller (MCU). The design includes key peripherals like electromagnetic interference (EMI) filtering, electromagnetic (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP15003 — 애프터마켓 조명 바, 스팟 조명 및 플러드 조명을 위한 조광 가능 LED 드라이버 레퍼런스 디자인

This in an automotive boost LED driver designed to drive an LED string of up to 34V at a maximum of 34W of output power. This solution as designed passes CISPR 25 class 3 EMC requirements and is capable of 10:1 analog dimming. High side current sensing allows one end of the LED string to be tied (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP15027 — 차량용 조명 및 ADAS 시스템을 위한 고전류 SEPIC 레퍼런스 설계

This reference design is ideal for high-current pulse operation of IR LEDs at up to 3A for automotive ADAS systems. It is capable of continuous and pulsed operation even through load dump and warm crank events. Other features include analog dimming and CISPR-25 class 3 EMI filtering.
Test report: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01381 — LED 헤드라이트를 위한 차량용 다중 채널 온도 감지 레퍼런스 디자인

This reference design details how to drive a string of matrix LED headlights, measure the temperature of the LEDs and implement support for thermal foldback which reduces the current in the LEDs as the LED temperature rises to prevent damage to the LEDs. The design uses temperature sensing (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01183 — 오토모티브 조명을 위한 정밀 PWM 조광 LED 드라이버 레퍼런스 디자인

This reference design shows how to use pulse width modulation (PWM) to dim an automotive headlight or tail light with precision of better than 2% duty cycle without the necessity of using a microcontroller. This allows the design to be cost competitive. Devices used in this design are the (...)
Design guide: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
HTSSOP (PWP) 16 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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