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Name: TPIC8101DWR
Brand: Texas Instruments
SKU: TPIC8101DWR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Texas Instruments TPIC8101DWR

Part No.:: TPIC8101DWR

Manufacturer:: Texas Instruments

Package:: 20-SOIC (0.295, 7.50mm Width)

Datasheet:: TPIC8101DWR.pdf

Description:: IC KNOCK SENSOR INTERFACE 20SOIC

In Stock:: 3175

Quantity:: Add To Cart

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TPIC8101DWR Typical application Circuitry

TPIC8101DWR

The TPIC8101DWR is an integrated circuit designed primarily for signal processing in automotive knock detection systems. It plays a crucial role in enhancing engine efficiency and performance by accurately interpreting signals from knock sensors. Below, we delve into its functionalities, applications, key features, a detailed circuit implementation example, and design considerations.

Functional Overview and Applications

1. Automotive Knock Detection: The TPIC8101DWR is primarily used in automotive engines to process signals from knock sensors, aiding in the detection and analysis of engine knock or pinging.

2. Signal Conditioning: It conditions the signals from piezoelectric sensors, which are sensitive to specific frequencies indicating engine knock.

Key Features and Specifications

1. Dual-Channel Capability: Can process signals from two sensors, ideal for engines with multiple cylinders.

2. Adjustable Filter and Amplifier Settings: Allows customization of signal processing to suit different engine types.

3. Built-in Diagnostic Functions: Facilitates regular checks for system integrity and functionality.

Circuit Implementation: Dual Knock Sensor System

Scenario: Designing a knock detection system for a V8 engine using the TPIC8101DWR.

1. Sensor Integration:

- Overview: Connecting the knock sensors.

- Details: Attach piezoelectric knock sensors to pins 14 and 15, designated for sensor inputs.

2. Power Supply Configuration:

- Overview: Establishing the power supply.

- Details: Connect a stable 5V supply to pin 16 (VDD) and ground to pin 5 (VSS).

3. Setting the Filter Frequency:

- Overview: Customizing the filter.

- Details: Use external resistors and capacitors on pins 6, 7, 8, and 9 to adjust the filter frequency based on engine requirements.

4. Amplifier Gain Adjustment:

- Overview: Modifying the gain.

- Details: Set the amplifier gain by attaching resistors to pins 10 and 11.

5. Output Processing:

- Overview: Directing the output.

- Details: Lead the output from pins 2 and 3 to the engine control unit (ECU) for analysis.

6. Diagnostic Capabilities:

- Overview: Utilizing the diagnostic feature.

- Details: Activate the self-test by applying a signal to pin 4 and monitor the results for system diagnostics.

Design Considerations

When designing with the TPIC8101DWR, consider the following:

1. Electromagnetic Interference (EMI): Minimize EMI, as it can affect the sensitivity of the knock sensors.

2. Stable Power Source: Ensure a consistent power supply for accurate signal processing.

3. Quality of External Components: Select high-quality resistors and capacitors for precise filter and gain configurations.

4. Heat Dissipation: Account for thermal management in the harsh automotive environment.

5. Compatibility with ECU: Ensure the outputs are compatible with the ECU's specifications.

Incorporating these aspects into your design with the TPIC8101DWR will effectively aid in precise knock detection, thus contributing to optimal engine performance.

TPIC8101DWR information

TPIC8101DWR Specifications

Package/Case:
20-SOIC (0.295, 7.50mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
Automotive, AEC-Q100
ProductStatus:
Active
Type:
Sensor Interface
InputType:
Serial
OutputType:
Serial
Current-Supply:
20 mA
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

TPIC8101DWR FAQ

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3. Are the TPIC8101DWR price and inventory displayed accurate?

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6. What is the process for return or replacement of TPIC8101DWR?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the TPIC8101DWR we delivered, we will accept the replacement or return of the TPIC8101DWR only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of TPIC8101DWR.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations