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HomeProductsIntegrated Circuits (ICs)Interface - Sensor and Detector InterfacesTPIC8101DWRG4
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TPIC8101DWRG4 - Texas Instruments

Manufacturer Part Number
TPIC8101DWRG4
Manufacturer
Texas Instruments
Allelco Part Number
32D-TPIC8101DWRG4
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
17,590 pcs available, New & Original
Parts Description
IC KNOCK SENSOR INTERFACE 20SOIC
Package
20-SOIC
Data sheet
TPIC8101DWRG4.pdf

PCN Design/Specification

Datasheet Update 16/Apr/2015.pdf

HTML Datasheet

TPIC8101 Datasheet.pdf
RoHs Status
ROHS3 Compliant
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Specifications

TPIC8101DWRG4 Tech Specifications
Texas Instruments - TPIC8101DWRG4 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TPIC8101DWRG4

Product Attribute Attribute Value
Manufacturer Texas Instruments
Type Sensor Interface
Supplier Device Package 20-SOIC
Series Automotive, AEC-Q100
Package / Case 20-SOIC (0.295", 7.50mm Width)
Package Tape & Reel (TR)
Product Attribute Attribute Value
Output Type Serial
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Input Type Serial
Current - Supply 20 mA
Base Product Number TPIC810

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

TPIC8101DWRG4 Image
TPIC8101DWRG4 (1)

Manufacturer Part Number

TPIC8101DWRG4

Manufacturer

Texas Instruments

Introduction

The TPIC8101DWRG4 is a sensor interface device from Texas Instruments. It is designed to provide a reliable and efficient interface between sensors and microcontrollers or other signal processing circuitry.

Product Features and Performance

Supports serial communication interfaces like UART, I2C, and SPI

Integrated 20mA low-side driver for sensor power supply

Wide operating temperature range of -40°C to 125°C

AEC-Q100 qualified for automotive applications

Surface mount 20-SOIC package

Product Advantages

Simplifies sensor interfacing and reduces design complexity

Provides robust and reliable sensor power supply

Suitable for a wide range of temperature conditions

Automotive-grade qualification ensures reliable performance in harsh environments

Key Reasons to Choose This Product

Streamlines sensor integration and communication

Optimized for low-power and space-constrained designs

Proven reliability and performance for automotive and industrial applications

Comprehensive sensor interface solution from a trusted manufacturer

Quality and Safety Features

AEC-Q100 qualified for automotive applications

Adheres to strict quality and safety standards

Compatibility

The TPIC8101DWRG4 is compatible with a wide range of sensors and microcontrollers that support serial communication interfaces.

Application Areas

Automotive systems (e.g., powertrain, safety, and comfort)

Industrial automation and control

Robotics and smart home devices

Medical and healthcare equipment

Product Lifecycle

The TPIC8101DWRG4 is an obsolete product, meaning it is no longer in active production. However, Texas Instruments may have equivalent or alternative models available. Customers are advised to contact our website's sales team for more information on available options.

Frequently Asked Questions(FAQ)

How does the TPIC8101DWRG4 handle signal integrity in high-noise automotive environments, and what design considerations are necessary to ensure reliable knock sensor detection?
The TPIC8101DWRG4 is designed for automotive applications with AEC-Q100 qualification, indicating robustness against temperature extremes and environmental stress. Its serial input/output interface suggests compatibility with digital signal processing techniques that enhance noise immunity. However, due to the nature of knock sensing—detecting minute vibrations in the 5–20 kHz range—external filtering and proper PCB layout are critical. Designers should implement low-pass RC filters at the sensor input to suppress electromagnetic interference while preserving the frequency band of interest. Ground plane segmentation and shielding may further reduce noise coupling, especially given the 20 mA supply current capability that supports stable internal biasing.
What are the key differences between the TPIC8101DWRG4 and its substitute part TPIC8101DWR, particularly in terms of reliability and manufacturing suitability?
While both parts share the same base product number TPIC810 and serve identical functional roles as knock sensor interfaces, the TPIC8101DWRG4 includes a G4 suffix denoting enhanced automotive-grade packaging and qualification per Texas Instruments’ internal specifications. This often implies improved moisture sensitivity control, stricter process controls, or additional screening compared to the standard DWR variant. Although not explicitly detailed in public datasheets, the presence of "G4" typically aligns with higher reliability tiers in TI’s automotive portfolio, making it preferable for production designs requiring long-term durability and traceability under IATF 16949 processes.
Can the TPIC8101DWRG4 operate effectively in systems with limited power budgets, and how does its 20 mA supply current impact system-level efficiency?
The TPIC8101DWRG4 draws up to 20 mA from the supply rail, which is moderate for an automotive interface IC but can be significant in battery-sensitive applications such as stop-start vehicle systems. In typical operation, however, the device likely consumes less than peak current when idle or processing low-frequency signals. Designers should account for this during power budget planning, especially if multiple sensors are interfaced. Using sleep modes (if supported) or coordinating wake-up timing with engine management cycles can mitigate average current draw. Given its function—processing analog knock signals into digital outputs—it is not inherently ultra-low-power but remains acceptable within standard ECU power allocations.
When selecting between the TPIC8101DWRG4 and alternative sensor interface solutions, what trade-offs emerge regarding integration complexity versus performance?
Compared to discrete implementations using comparators and microcontrollers, the TPIC8101DWRG4 reduces board space and software overhead by providing dedicated knock detection logic with built-in thresholds and timing windows. However, it lacks programmability; threshold levels and response characteristics are fixed internally. This makes it ideal for standardized applications where consistent behavior across units is required, but less flexible than software-configurable alternatives. For high-speed combustion engines requiring adaptive knock control, a microcontroller-based solution might offer superior tuning, whereas the TPIC8101DWRG4 excels in cost-sensitive, space-constrained designs prioritizing reliability over configurability.
What role does the Moisture Sensitivity Level (MSL) rating of 3 play in manufacturing and handling of the TPIC8101DWRG4?
With an MSL of 3, the TPIC8101DWRG4 must be soldered within 168 hours (7 days) after removal from dry storage to prevent moisture-induced damage during reflow soldering. This necessitates controlled humidity environments during assembly, particularly in high-volume automotive production lines. Manufacturers must track bake-out procedures and use conformal coatings if extended storage is anticipated. Failure to adhere to this timeline risks pop-corning or delamination, which could compromise the device’s performance and reliability in harsh under-hood conditions—a critical concern for AEC-Q100 compliance.
How does the operating temperature range of -40°C to 125°C influence the selection of external components when using the TPIC8101DWRG4?
The wide junction-to-ambient temperature span demands careful component derating for passive elements like resistors and capacitors in proximity to the IC. For instance, ceramic capacitors used in bias networks should have X7R or better dielectric ratings to maintain capacitance stability across temperature. Resistors must be rated for full power dissipation under cold-start conditions. Additionally, PCB materials should support thermal cycling without cracking. Since the TPIC8101DWRG4 itself operates reliably across this range, proper system-level thermal management ensures that peripheral circuitry does not introduce failure points outside the IC’s capabilities.
Is the TPIC8101DWRG4 suitable for use in non-automotive industrial knock detection applications, and what modifications might be needed?
Technically, the TPIC8101DWRG4 can function in industrial settings due to its broad operating temperature range and robust packaging. However, its primary qualification path via AEC-Q100 targets automotive use cases, which include rigorous lifecycle testing and failure analysis protocols not mandated for industrial grades. In non-automotive applications, the risk of undetected latent defects may increase. If deployed, designers should still validate performance under expected environmental stresses and consider whether industrial-grade alternatives with explicit qualification exist. Cost savings may not justify the potential reliability trade-off unless the application has lower safety-criticality.
How does the serial input/output architecture of the TPIC8101DWRG4 affect communication protocols with downstream ECUs?
The TPIC8101DWRG4 features serial I/O, implying compatibility with protocols like LIN, CAN, or SPI depending on implementation details not fully specified in general descriptions. Typically, such devices output pulse-width modulated signals or digital flags indicating detected knock events, which are then processed by a host microcontroller. This separation of sensing and decision-making allows for modular design but introduces latency compared to fully integrated solutions. Designers must ensure timing margins align with engine control loop requirements, particularly in high-RPM scenarios where knock detection must occur within precise crank-angle windows.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TPIC8101DWRG4

Product Attribute TPIC8101DWG4 TPIC8101DWR TPIC8101DW TPIC83000IPWRQ1
Part Number TPIC8101DWG4 TPIC8101DWR TPIC8101DW TPIC83000IPWRQ1
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Type - - - -
Input Type - - - Differential
Base Product Number - DAC34H84 MAX500 ADS62P42
Output Type - Current - Unbuffered Voltage - Buffered -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Current - Supply - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Series - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Mounting Type - Surface Mount Through Hole Surface Mount

TPIC8101DWRG4 Datasheet PDF

Download TPIC8101DWRG4 pdf datasheets and Texas Instruments documentation for TPIC8101DWRG4 - Texas Instruments.

PCN Design/Specification
Datasheet Update 16/Apr/2015.pdf
HTML Datasheet
TPIC8101 Datasheet.pdf

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Customer Reviews

Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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TPIC8101DWRG4 Image

TPIC8101DWRG4

Texas Instruments
32D-TPIC8101DWRG4

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