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TPS92638-Q1
- Qualified for Automotive Applications
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C3B
- Functional safety
capable
- Documentation available to aid functional safety system design
- 8-Channel LED Driver With Analog and PWM Dimming
- Wide Input-Voltage Range: 5 V–40 V
- Adjustable Constant Output
Current Set by Reference Resistor
- Maximum Current: 70 mA per Channel
- Maximum Current: 560 mA in Parallel Operation Mode
- Accuracy: ±3% per Channel
- Accuracy: ±4% per Device
- PWM Dimming Input (PWM)
- Turn ON/OFF Delay Time: 25 µs (typ.), 45 µs (max.)
- 4-Bank PWM Dimming to Control 8 Channels
- Open- and Shorted-LED Detection With Deglitch
- Fault Pin for Open, Short, and Thermal-Shutdown Failure Reporting, Allowing Parallel Bus Connection of up to 15 Devices
- Temperature-Current Foldback to Prevent Thermal Shutdown, With Programmable Threshold
- Single Resistor for Stop-Current Set Point
- Single Resistor for Tail-Current Set Point
- Operating Junction Temperature Range –40°C to 150°C
- Package: 20-Pin Thermally Enhanced PWP Package (PDSO)
The TPS92638-Q1 is an eight-channel linear LED driver with PWM dimming control. Its design is ideal for driving multiple strings of LEDs up to a medium power range.
This device can drive up to eight strings with one to three LEDs in each string, at a total current up to 70 mA per channel. Outputs can be in parallel to provide higher-current drive up to 560 mA.
In multiple-string applications, the device offers the advantage of having common-cathode connection of the LED stings. So, there is only a single return wire needed instead of one per LED string that a system with low-side current sense would need.
The device has the capability for switching LED current between high current and low current for stop and tail applications. Two reference resistors set the two LED current levels from each output.
The included temperature monitor reduces the LED drive current if the IC junction temperature exceeds a thermal threshold. The temperature threshold is programmable through an external resistor. One can disable the thermal current-monitor feature by connecting the TEMP pin to ground. Output of the junction temperature as an analog voltage is available as a factory program option.
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기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS92638-Q1 8-Channel Linear LED Driver With PWM Dimming datasheet (Rev. C) | PDF | HTML | 2020. 1. 15 | |
| 애플리케이션 노트 | Typical Design Guidelines for TPS92630/8-Q1 in Automotive Rear Lamp Applications | PDF | HTML | 2020. 9. 1 | ||
| 기능 안전 정보 | 자동차 및 산업 분야의 기능적 안전성 인증 간소화 | Download English Version | 2020. 6. 9 | ||
| 기술 문서 | Always make the right turn: how to design fault circuits in automotive lighting sy | PDF | HTML | 2020. 1. 16 | ||
| 기능 안전 정보 | TPS92638-Q1 Functional Safety FIT Rate and Failure Mode Distribution | 2020. 1. 6 | |||
| 백서 | 자동차 후미등의 트렌드와 토폴로지 (Rev. A) | Download English Version (Rev.A) | 2019. 10. 16 | ||
| 기술 문서 | How to overcome size, EMI and thermal challenges of automotive LED lighting | PDF | HTML | 2018. 4. 9 | ||
| 백서 | LED Drivers for Automotive Exterior Applications (Rev. B) | 2018. 3. 27 | |||
| 설계 가이드 | EMC Compatible Automotive LED Rear Lamp Sequential-Turn Animation Design Guide | 2016. 6. 2 | |||
| 애플리케이션 노트 | How to Calculate TPS92630-Q1 Maximum Output Current for Automotive Exterior Ligh | 2015. 12. 22 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS92638EVM — TPS92638 8채널 선형 LED 드라이버 EVM
Texas Instruments TPS92638 evaluation module contains a TPS92638 integrated circuit (IC), supporting passive components and three OSRAM LEDs in series per channel, the EVM includes 8 channels. The purpose of this EVM is to facilitate evaluation of the TPS92638 in a typical LED application.
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TPS92638-Q1 Unencrypted PSpice Transient Model Package (Rev. C)
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This automotive door control switch reference design showcases a proof-of-concept solution for an automotive door control switch panel that communicates wirelessly to the door side mirror, window lift and door lock mechanisms. Using TI's automotive qualified Bluetooth® low energy + MCU CC2541-Q1 (...)
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This reference design is for automotive high-side dimming rear light, which uses BCM to supply the rear light. In the design, the high-side driver TPS1H100-Q1 is used to output PWM supply with different duty cycle. Linear LED drivers TPS92630-Q1 and TPS92638-Q1 are used to drive LEDs in constant (...)
TIDA-01007 — 순차 회전 애니메이션을 지원하는 EMC 호환 오토모티브 LED 후방 램프 레퍼런스 디자인
TIDA-01348 — 오토모티브 LED 조명 시스템을 위한 CISPR 25 클래스 5 정격 7.5W 후미등 레퍼런스 디자인
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTSSOP (PWP) | 20 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.