TPIC8101
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range - Device HBM Classification Level 3A
- Device CDM Classification Level C6
- Device Temperature Grade 1: –40°C to 125°C
- Dual-Channel Knock Sensor Interface
- Programmable Input Frequency Prescaler
(OSCIN) - Serial Interface With Microprocessor (SPI)
- Programmable Gain
- Programmable Band-Pass Filter Center Frequency
- External Clock Frequencies up to 24 MHz
- 4, 5, 6, 8, 10, 12, 16, 20, and 24 MHz
- Programmable Integrator Time Constants
- Operating Temperature Range –40°C to 125°C
The TPIC8101 is a dual-channel signal processing IC for detection of premature detonation in combustion engine. The two sensor channels are selectable through the SPI bus. The knock sensor typically provides an electrical signal to the amplifier inputs. The sensed signal is processed through a programmable band-pass filter to extract the frequency of interest (engine knock or ping signals). The band-pass filter eliminates any engine background noise associated with combustion. The engine background noise is typically low in amplitude compared to the predetonation noise.
The detected signal is full-wave rectified and integrated by use of the INT/HOLD signal. The digital output from the integration stage is either converted to an analog signal, passed through an output buffer, or be read directly by the SPI.
This analog buffered output may be interfaced to an A/D converter and read by the microprocessor. The digital output may be directly interfaced to the microprocessor.
The data from the A/D enables the system to analyze the amount of retard timing for the next spark ignition timing cycle. With the microprocessor closed-loop system, advancing and retarding the spark timing optimizes the load/RPM conditions for a particular engine (data stored in RAM).
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPIC8101 Knock Sensor Interface datasheet (Rev. C) | PDF | HTML | 2015. 3. 23 | |
| 기술 문서 | Performance comparison between two automotive knock sensors | PDF | HTML | 2015. 6. 23 | ||
| 아날로그 디자인 학술지 | How to set-up a knock-sensor signal-conditioning system | 2014. 7. 15 | |||
| 애플리케이션 노트 | TPIC8101 Knock Sensor Interface Technical Brief | 2009. 1. 9 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPIC8101EVM — TPIC8101 오토모티브 노크 센서 평가 모듈
The TPIC8101EVM provides an easy method for evaluating the TPIC8101 automotive knock sensor interface IC. Software is included to quickly program the TPIC8101, and the included USB interface board provides all necessary signals to connect the TPIC8101 EVM to a knock sensor or a knock sensor (...)
SLIC023 — TPIC8101 EVM GUI
TIDA-00152 — 차량용 음향 노크 센서 인터페이스 레퍼런스 디자인
This TIDA-00152 reference design utilizes a dual-channel, signal processing IC for detection of premature detonation in combustion (gasoline) engines. The heart of this design is the TPIC8101 that serves as an interface between acoustical sensors or accelerometers and automobile engine management (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOIC (DW) | 20 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.