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Renesas ZSSC4175DE4 ESR
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- ZSSC4175DE4 ESR
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- Renesas
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ZSSC4175DE4 ESR.pdf
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- IC REG PQFN
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Product details
Overview
ZSSC4175DE4 ESR from Renesas Electronics is a dual-channel sensor signal conditioner IC designed for high-accuracy conditioning of thermocouple inputs in automotive and industrial environments. It supports N-type thermocouples, provides cold-junction compensation via internal temperature sensing, delivers ±0.25% FSO accuracy from −40°C to 125°C, operates from 4.75–5.25 V, and outputs calibrated data via SENT or I²C™ interfaces.
For engineers reviewing the ZSSC4175DE4 ESR datasheet, ZSSC4175DE4 ESR pinout, ZSSC4175DE4 ESR application, or ZSSC4175DE4 ESR equivalent, key selection criteria include dual thermocouple support, SENT fast/SDM channel capability, 12–16-bit configurable ADC resolution, −40°C to 150°C operating range, and integrated diagnostics for open-circuit and short-circuit detection.
Technical Context
The ZSSC4175DE4 ESR implements a 16-bit RISC microcontroller core for digital compensation of offset, sensitivity, temperature drift, and nonlinearity across two independent voltage-source sensor channels. Its analog frontend includes programmable gain amplification (150–200×), 12–16-bit ADC resolution, and digital zooming for large sensor offset correction (14–18 bit effective resolution).
Dual thermocouple inputs are conditioned with internal cold-junction temperature measurement, diagnostic checks for thermocouple integrity, and output formatting compliant with SAE J2716 Rev 3.0 SENT standard - supporting both fast-channel primary measurements and SDM-channel supplementary data on a single DOUT pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.75 V to 5.25 V - ensures compatibility with standard 5 V automotive ECUs without external regulation. |
| Operating Temp Range | −40°C to +150°C - qualified for under-hood and transmission-mounted sensor modules. |
| Accuracy | ±0.25% FSO @ −40°C to 125°C - enables high-fidelity thermocouple measurement without post-calibration trimming. |
| ADC Resolution | Configurable 12–16 bit - balances speed vs. precision for real-time thermal monitoring and diagnostics. |
| Output Interface | SENT (SAE J2716 Rev 3.0) or I²C™ - allows single-pin deterministic timing-critical reporting or flexible host-controlled configuration. |
| Input Protection | ±18 V overvoltage & reverse polarity - eliminates need for external protection circuitry in harsh automotive wiring harnesses. |
| Nonlinearity Compensation | Higher-order digital correction - corrects thermocouple polynomial behavior without external lookup tables or MCU intervention. |
Pinout & Package
Package: 4 mm × 4 mm QFN-24, exposed thermal pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog supply input | Provides clean 4.75–5.25 V power to analog front-end and ADC; requires local decoupling. |
| VSSA | Analog ground | Separate analog return path to minimize noise coupling into sensitive bridge/thermocouple inputs. |
| BR1P / BR1N | Thermocouple 1 differential input | Accepts N-type thermocouple voltage; supports open/short diagnostics and cold-junction compensation. |
| BR2P / BR2N | Thermocouple 2 differential input | Independent second thermocouple channel with identical signal conditioning and diagnostics as BR1. |
| DOUT | SENT/OWI bidirectional output | Single-pin SENT fast/SDM frame transmission or One-Wire Interface calibration communication. |
| SCL / SDA | I²C™ interface pins | Enable host-configurable settings, coefficient updates, and readback of raw/conditioned values during development or service. |
| TS1 / TS2 | Internal temperature sensor outputs | Provide cold-junction reference for both thermocouple channels; used automatically in compensation algorithm. |
Key Features
| Feature | Design Value |
|---|---|
| Dual thermocouple input channels | Enables simultaneous monitoring of two independent thermal zones (e.g., exhaust inlet/outlet) with shared calibration and diagnostics resources. |
| SENT interface with SDM channel | Transmits primary thermocouple readings on fast channel and secondary data (e.g., die temperature, fault flags) on SDM - all on one wire. |
| Integrated cold-junction compensation | Uses on-die temperature sensors (TS1/TS2) to eliminate external RTD or diode components and reduce BOM cost and layout area. |
| One-pass end-of-line calibration | Reduces production test time by enabling full sensor characterization (offset, gain, nonlinearity, tempco) in a single thermal soak cycle via OWI or I²C™. |
| Automotive-grade diagnostics | Detects thermocouple open-circuit, short-to-rail, and out-of-range conditions - reports status via SENT SDM or I²C™ registers. |
Applications
| Exhaust Gas Temperature Monitoring | Transmission Oil Temperature Sensing |
|---|---|
Use Scenario: Dual N-type thermocouples mounted at turbine inlet and outlet to monitor exhaust gas temperature gradients in diesel aftertreatment systems. IC Role / Device Role / Timing Role: Sensor signal conditioner performing cold-junction compensation, linearization, and SENT-frame formatting for ECU consumption. Use Value: Enables real-time thermal mapping with ±0.25% FSO accuracy across −40°C to 150°C, reducing need for redundant sensors or software correction. | Use Scenario: Dual-point oil temperature measurement inside automatic transmission housing using embedded N-type thermocouples. IC Role / Device Role / Timing Role: Dual-channel conditioner providing SENT output with fast-channel primary readings and SDM-based diagnostic flags and die temperature. Use Value: Eliminates separate signal conditioning ICs and external temperature references, cutting PCB area and assembly cost by >30%. |
| Engine Coolant Temperature Redundancy | Industrial Furnace Dual-Zone Control |
Use Scenario: Redundant coolant temperature sensing using two thermocouples near engine block and radiator hose for ASIL-B functional safety compliance. IC Role / Device Role / Timing Role: Fault-tolerant signal conditioner delivering independent SENT frames with CRC-protected data and built-in open/short detection. Use Value: Supports ISO 26262 diagnostic coverage requirements without external watchdog or comparison logic. | Use Scenario: Dual-zone thermal profiling in semiconductor diffusion furnaces using N-type thermocouples at top and bottom heating zones. IC Role / Device Role / Timing Role: High-accuracy conditioner interfacing to PLC via SENT or I²C™, with programmable alarm thresholds stored in NVM. Use Value: Achieves <±0.5°C system-level accuracy over 0–1200°C range through higher-order digital compensation and stable 16-bit ADC resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1452ACM+T | Single-channel analog signal conditioner with laser-trimmed resistors; no integrated microcontroller or SENT output. | Limited to single-sensor systems requiring external MCU for compensation; lacks automotive diagnostics and digital interfaces. | Select when legacy analog trimming is preferred and SENT/I²C™ output is not required. |
| AD7124-8BCPZ | 8-channel Σ-Δ ADC with PGA and internal reference; no built-in thermocouple linearization, cold-junction compensation, or SENT interface. | Requires external firmware for polynomial correction and host-driven SENT framing; better suited for multi-sensor data acquisition than dedicated thermocouple modules. | Select when flexibility across multiple sensor types (RTD, thermistor, bridge) outweighs turnkey thermocouple optimization. |
Compared with MAX1452ACM+T and AD7124-8BCPZ, the ZSSC4175DE4 ESR delivers fully integrated, automotive-qualified thermocouple signal conditioning with SENT output, eliminating external computation, trimming, and interface translation - reducing total system BOM count and validation effort.
Availability
ZSSC4175DE4 ESR is available at Aetrix Electronics and suitable for exhaust gas temperature monitoring, transmission oil sensing, and engine coolant redundancy applications requiring stable component supply across extended automotive lifecycles.
Supply support for ZSSC4175DE4 ESR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The ZSSC417x product line was engineered specifically for high-reliability, low-cost thermocouple signal conditioning in automotive powertrain and chassis systems - integrating compensation, diagnostics, and SENT output in a single QFN package.
FAQ
What sensor types does the ZSSC4175DE4 ESR support?
The ZSSC4175DE4 ESR supports dual N-type thermocouples as primary inputs, with optional support for additional thermocouple types available upon request. It uses internal temperature sensors for cold-junction compensation and includes diagnostics for open-circuit and short-circuit faults on both channels. The ZSSC4175DE4 ESR does not support resistive bridge sensors - those are handled by the ZSSC416x family.
Does the ZSSC4175DE4 ESR require external components for basic operation?
No, the ZSSC4175DE4 ESR integrates all essential functions including PGA, 12–16-bit ADC, 16-bit RISC controller, NVM for calibration coefficients, SENT/I²C™ interface, and diagnostics. Only decoupling capacitors on VDDA/VSSA and a pull-up resistor on DOUT for SENT mode are required. The ZSSC4175DE4 ESR eliminates need for external trimming resistors, laser calibration, or discrete temperature references.
How is calibration performed for the ZSSC4175DE4 ESR?
Calibration for the ZSSC4175DE4 ESR is performed end-of-line using either the One-Wire Interface (OWI) via the DOUT pin or the I²C™ interface. A one-pass algorithm captures offset, gain, nonlinearity, and temperature coefficients across thermal soak points. Calibration coefficients are stored in on-chip NVM. The ZSSC4175DE4 ESR supports field re-calibration via I²C™ if required.
What is the SENT frame structure supported by the ZSSC4175DE4 ESR?
The ZSSC4175DE4 ESR implements SAE J2716 Rev 3.0 SENT protocol with a 12-bit fast channel for primary thermocouple data and a configurable Serial Data Message (SDM) channel for supplementary data such as die temperature, fault status, or channel identification. Frame timing and CRC are hardware-managed. The ZSSC4175DE4 ESR does not support PWM or UART-based alternatives.
Is the ZSSC4175DE4 ESR qualified for automotive applications?
Yes, the ZSSC4175DE4 ESR is AEC-Q100 qualified with operating temperature range −40°C to +150°C, ±18 V overvoltage and reverse polarity protection, and built-in diagnostics including thermocouple continuity checks and supply monitoring. Its NVM is rated for automotive reliability, and the ZSSC4175DE4 ESR meets stringent EMC requirements per ISO 11452 and ISO 7637 standards.
ZSSC4175DE4 ESR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
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- -
- Output Configuration:
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- -
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- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
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- -
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ZSSC4175DE4 ESR FAQ
1.How can I place an order for ZSSC4175DE4 ESR through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC4175DE4 ESR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ZSSC4175DE4 ESR reliable?
The price and inventory of ZSSC4175DE4 ESR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC4175DE4 ESR is usually 5 days.
3.What payment methods are accepted for ZSSC4175DE4 ESR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC4175DE4 ESR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC4175DE4 ESR?
ZSSC4175DE4 ESR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC4175DE4 ESR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ZSSC4175DE4 ESR?
For technical support, including ZSSC4175DE4 ESR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC4175DE4 ESR requirements.
6.How does Aetrix verify that ZSSC4175DE4 ESR is sourced from the original manufacturer or authorized distributors?
All ZSSC4175DE4 ESR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ZSSC4175DE4 ESR meets industry standards.
7.What is the process for return or replacement of ZSSC4175DE4 ESR?
All ZSSC4175DE4 ESR units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC4175DE4 ESR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ZSSC4175DE4 ESR part is unused and in its original packaging.
Return procedure for ZSSC4175DE4 ESR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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