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Renesas ZSSC4175DE4 ESV
- Part No.:
- ZSSC4175DE4 ESV
- Manufacturer:
- Renesas
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- -
- Datasheet:
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ZSSC4175DE4 ESV.pdf
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- IC REG PQFN
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Product details
Overview
ZSSC4175DE4 ESV 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 sensor, 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™ interface.
For engineers reviewing the ZSSC4175DE4 ESV datasheet, ZSSC4175DE4 ESV pinout, ZSSC4175DE4 ESV application, or ZSSC4175DE4 ESV 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 ESV 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 (14–18-bit effective offset correction).
Dual thermocouple inputs are conditioned with dedicated diagnostics-including open/short detection-and cold-junction compensation using an internal temperature sensor. Output is delivered via SENT (SAE J2716 Rev 3.0 compliant) with fast channel + SDM, or via I²C™/OWI for calibration and configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Type | Dual voltage-source sensor inputs, optimized for N-type thermocouples with diagnostic support |
| Accuracy | ±0.25% FSO over −40°C to 125°C - enables high-fidelity temperature measurement without external trimming |
| ADC Resolution | Configurable 12–16 bit - balances speed vs. precision for thermocouple digitization |
| Operating Temp | −40°C to +150°C - qualified for under-hood automotive and harsh industrial use |
| Supply Voltage | 4.75 V to 5.25 V - compatible with standard 5 V ECU power rails |
| Output Interface | SENT (J2716 Rev 3.0) + I²C™/OWI - supports robust single-wire sensor data transmission and digital calibration |
| Protection | ±18 V overvoltage & reverse polarity - eliminates need for external protection circuitry |
Pinout & Package
Package: 4 mm × 4 mm QFN-24, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog supply input | 4.75–5.25 V analog power rail for precision front-end operation |
| VSSA | Analog ground | Separate analog return path to minimize noise coupling into sensor signal chain |
| BR1P / BR1N | Thermocouple 1 differential input | High-impedance, protected inputs for first N-type thermocouple connection |
| BR2P / BR2N | Thermocouple 2 differential input | Independent second thermocouple channel with identical protection and biasing |
| DOUT | SENT/OWI bidirectional output | Single-pin SENT data transmission or OWI calibration communication |
| SCL / SDA | I²C™ interface pins | Standard two-wire interface for configuration, readback, and end-of-line calibration |
| TOP / BOT | Internal temperature sensor terminals | Enable diode-based cold-junction compensation for both thermocouple channels |
| TS1 / TS2 | External temperature sensor inputs | Optional RTD/NTC connections for enhanced ambient or media temperature reference |
Key Features
| Feature | Design Value |
|---|---|
| Dual thermocouple conditioning | Simultaneous, independent signal processing for two N-type thermocouples with per-channel diagnostics |
| Cold-junction compensation | Integrated diode-based temperature sensing at TOP/BOT pins enables accurate thermocouple reference without external components |
| SENT fast + SDM channel | Transmits primary thermocouple readings on fast channel and secondary data (e.g., status, CJC temp) on SDM - all on one wire |
| One-pass OWI calibration | End-of-line calibration via DOUT pin eliminates laser trimming and reduces test time and cost |
| Automotive-grade reliability | −40°C to 150°C operation, ±18 V protection, EMC-hardened design, and built-in fault reporting meet ISO 26262 ASIL-B readiness |
Applications
| Exhaust Gas Temperature Monitoring | Engine Coolant Dual-Point Sensing |
|---|---|
Use Scenario: Real-time monitoring of upstream/downstream exhaust gas temperatures in diesel aftertreatment systems. IC Role / Device Role / Timing Role: ZSSC4175DE4 ESV conditions two N-type thermocouples, performs cold-junction compensation, and transmits synchronized readings via SENT fast/SDM channels. Use Value: Enables closed-loop SCR dosing control with <±0.25% FSO accuracy and diagnostic coverage for open/short faults. | Use Scenario: Simultaneous measurement of coolant inlet and outlet temperatures to calculate heat exchanger efficiency. IC Role / Device Role / Timing Role: ZSSC4175DE4 ESV interfaces two thermocouples, applies individual nonlinearity correction, and outputs timestamp-aligned values via SENT frame structure. Use Value: Eliminates dual discrete conditioners; reduces BOM count and improves thermal tracking between channels. |
| Turbine Inlet/Outlet Temperature | Industrial Furnace Dual-Zone Control |
Use Scenario: High-temperature monitoring across turbine stages in aerospace auxiliary power units. IC Role / Device Role / Timing Role: ZSSC4175DE4 ESV acquires and compensates two N-type thermocouple signals under 150°C ambient, with diagnostics enabled. Use Value: Meets AEC-Q100 Grade 0 requirements; supports fail-safe shutdown decisions via SENT diagnostic flags. | Use Scenario: Independent temperature regulation of heating zones in semiconductor diffusion furnaces. IC Role / Device Role / Timing Role: ZSSC4175DE4 ESV conditions two thermocouples, stores unique calibration coefficients per channel in NVM, and reports via I²C™ for PLC integration. Use Value: Enables zone-specific compensation without host-side computation; retains calibration across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual thermocouple signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX31856ATM+ | 24-bit sigma-delta ADC, SPI interface only, no SENT output, supports wider thermocouple types including K/J/R/S | Requires external MCU for SENT framing; better suited for lab/data logger systems than automotive ECU integration | Choose when higher resolution and broader thermocouple support outweigh SENT interface necessity |
| AD7124-8BCPZ | 8-channel 24-bit ΣΔ ADC with PGA, no integrated thermocouple diagnostics or SENT, requires external processor for compensation algorithms | Demands full firmware implementation of cold-junction compensation, nonlinearity correction, and SENT encoding | Prefer when multi-sensor flexibility and ultra-low noise are critical, and system-level processing resources are available |
Compared with MAX31856ATM+ and AD7124-8BCPZ, the ZSSC4175DE4 ESV integrates complete thermocouple signal chain-including diagnostics, SENT output, and NVM-stored calibration-reducing host MCU load and PCB area while meeting automotive functional safety expectations.
Availability
ZSSC4175DE4 ESV is available at Aetrix Electronics and suitable for exhaust gas monitoring, engine thermal management, and industrial furnace control requiring stable component supply, automotive-grade qualification, and long-term lifecycle support.
Supply support for ZSSC4175DE4 ESV 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 microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.
The ZSSC417x product line was engineered specifically for high-reliability, low-cost signal conditioning of voltage-source sensors-especially thermocouples-in automotive powertrain and emissions systems.
FAQ
What sensor types does the ZSSC4175DE4 ESV support?
The ZSSC4175DE4 ESV is designed specifically for dual N-type thermocouples, with diagnostics for open/short conditions and cold-junction compensation using its internal diode sensor. While the ZSSC417x family documentation notes "additional thermocouple types on request," the ZSSC4175DE4 ESV datasheet and ordering information confirm N-type as the supported and calibrated type. It does not support resistive bridge sensors - those are addressed by the ZSSC416x series.
Does the ZSSC4175DE4 ESV require external components for basic operation?
No, the ZSSC4175DE4 ESV operates autonomously with minimal external components: only decoupling capacitors on VDDA/VSSA and optional RC filter on DOUT for SENT compliance. It integrates the PGA, 16-bit RISC controller, NVM for calibration data, SENT encoder, and diagnostics - eliminating external op-amps, ADCs, microcontrollers, or trimming components required by discrete solutions.
How is calibration performed for the ZSSC4175DE4 ESV?
Calibration for the ZSSC4175DE4 ESV is performed end-of-line using either the One-Wire Interface (OWI) via the DOUT pin or the I²C™ interface (SCL/SDA). The device's 16-bit RISC core executes a one-pass algorithm that writes offset, gain, and nonlinearity coefficients into its on-chip NVM. No laser trimming or external DACs are needed - calibration data persists across power cycles and supports field updates.
What is the SENT frame structure used by the ZSSC4175DE4 ESV?
The ZSSC4175DE4 ESV implements SAE J2716 Rev 3.0 SENT protocol: primary thermocouple measurements are transmitted on the fast channel (12-bit resolution), while supplementary data - such as cold-junction temperature, diagnostic status, or channel identification - is sent via the Serial Data Message (SDM) slow channel. Frame synchronization, pause pulses, and CRC are handled internally; only a pull-up resistor and optional RC filter are required on DOUT.
Is the ZSSC4175DE4 ESV qualified for automotive applications?
Yes, the ZSSC4175DE4 ESV is qualified per AEC-Q100 Grade 0 (−40°C to +150°C), features ±18 V overvoltage/reverse-polarity protection, meets stringent automotive EMC requirements, and includes multiple hardware diagnostics (open/short detection, memory CRC, supply monitoring). Its NVM retention and functional behavior under stress align with ASIL-B readiness for powertrain thermal sensing applications.
ZSSC4175DE4 ESV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ZSSC4175DE4 ESV FAQ
1.How can I place an order for ZSSC4175DE4 ESV through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC4175DE4 ESV 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 ESV reliable?
The price and inventory of ZSSC4175DE4 ESV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC4175DE4 ESV is usually 5 days.
3.What payment methods are accepted for ZSSC4175DE4 ESV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC4175DE4 ESV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC4175DE4 ESV?
ZSSC4175DE4 ESV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC4175DE4 ESV 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 ESV?
For technical support, including ZSSC4175DE4 ESV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC4175DE4 ESV requirements.
6.How does Aetrix verify that ZSSC4175DE4 ESV is sourced from the original manufacturer or authorized distributors?
All ZSSC4175DE4 ESV 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 ESV meets industry standards.
7.What is the process for return or replacement of ZSSC4175DE4 ESV?
All ZSSC4175DE4 ESV units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC4175DE4 ESV, 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 ESV part is unused and in its original packaging.
Return procedure for ZSSC4175DE4 ESV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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