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Renesas ZSSC3170EA2T
- Part No.:
- ZSSC3170EA2T
- Manufacturer:
- Renesas
- Category:
- Specialized
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
ZSSC3170EA2T.pdf
- Description:
- IC INTFACE SPECIALIZED SGNL COND
- Quantity:
- Payment:
- Shipping:
Inventory:3,251
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Product details
Overview
ZSSC3170EA2T from Integrated Device Technology (IDT) is an AEC-Q100-qualified automotive sensor signal conditioner IC designed to condition resistive bridge sensor outputs with digital compensation for offset, sensitivity, temperature drift (up to 2nd order), and nonlinearity (up to 3rd order). It delivers up to 14-bit ADC resolution, ±0.50% FSO accuracy over −40°C to +125°C, and supports dual-output interfaces: LIN 2.1-compliant bus communication and configurable PWM (HOUT/LOUT high-side or low-side switching). It is used in automotive pressure, force, and level sensing systems requiring end-of-line calibration and robust diagnostics.
For engineers reviewing the ZSSC3170EA2T datasheet, ZSSC3170EA2T pinout, ZSSC3170EA2T application, or ZSSC3170EA2T equivalent, key selection considerations include its LIN/PWM dual-interface capability, integrated EEPROM for automotive-grade coefficient storage, programmable gain (2–420), bridge input span (1.8–267 mV/V), and built-in diagnostic features including sensor connection loss and short detection.
Technical Context
The ZSSC3170EA2T implements a two-stage analog front-end with a programmable gain amplifier (PGA) and 14-bit ADC, followed by a 16-bit RISC microcontroller executing ROM-resident conditioning algorithms. Its signal path supports sequential multiplexing between bridge and temperature inputs (internal diode, external diode, or RTD), enabling simultaneous correction and output of both signals.
Digital compensation coefficients-including 2nd-order temperature drift and 3rd-order nonlinearity-are stored in automotive-certified EEPROM. The LIN interface complies with specifications 1.3/2.0/2.1 and supports publisher frame configuration, while PWM outputs support configurable high-side or low-side switching with 11-bit full-scale resolution and ≤20 ms response time in PWM mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 14-bit - Enables high-precision digitization of bridge signals with <8 LSB INL error. |
| Accuracy | ±0.50% FSO @ −40°C to +125°C - Specifies total unadjusted error including gain, offset, INL, and temperature effects across full automotive operating range. |
| Bridge Input Span | 1.8 to 267 mV/V - Supports wide range of resistive bridge sensors without external amplification. |
| Programmable Gain | 2 to 420 - Configurable via EEPROM to match sensor output amplitude and optimize dynamic range. |
| LIN Compliance | LIN 1.3 / 2.0 / 2.1 - Ensures interoperability with standard automotive LIN transceivers and master nodes. |
| PWM Output Resolution | 11-bit full-scale (1%–99% duty) - Provides fine-grained analog-equivalent control for actuator or display interfacing. |
| EEPROM Endurance | 100 write cycles @ 150°C - Certified for automotive calibration data retention under extended temperature stress. |
| Supply Voltage Range | 7 V to 18 V - Compatible with 12 V automotive battery systems including load dump transients. |
Pinout & Package
Package: DFN20 (5 mm × 5 mm, 0.5 mm pitch, exposed thermal pad). RoHS-compliant, thermally enhanced surface-mount package optimized for automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBP / VBN | Bridge sensor differential input | Accepts Wheatstone bridge output; common-mode range 29–65% of VDDA enables bidirectional signal handling. |
| HOUT / LOUT | PWM output drivers | HOUT = high-side switch; LOUT = low-side switch; each supports 15 mA source/sink with <15 µs edge times. |
| LIN | LIN bus interface | Integrated LIN transceiver pin with ±40 V load-dump protection and 0.5–2.0 V recessive/dominant thresholds. |
| VTN1 / VTN2 | External temperature sensor inputs | Support diode or RTD connections; bias current 10–40 µA enables direct media temperature sensing. |
| VDDA / VSSA | Analog supply and ground | Separate analog domain (4.3–6.0 V) isolates sensitive AFE from digital noise. |
| SCL / SDA | I²C calibration interface | Used for coefficient programming and debug; supports 400 kHz clock and 400 pF bus capacitance. |
| VB / VSSE | Main power and external ground reference | VB accepts 7–18 V automotive supply; VSSE provides isolated return for bridge excitation and PWM loads. |
Key Features
| Feature | Design Value |
|---|---|
| Dual digital output interfaces | LIN 2.1 publisher frame + PWM (HSS/LSS) - Eliminates need for external protocol translators or DACs in cost-sensitive modules. |
| Automotive EEPROM | 3-word certified storage for calibration coefficients and user data - Meets AEC-Q100 EEPROM reliability requirements at 150°C. |
| Integrated diagnostics | Sensor connection loss (20–100 kΩ threshold), short detection (50–1000 Ω), and aging monitoring - Reduces need for external fault logic in safety-critical designs. |
| Temperature compensation | 2nd-order drift + 3rd-order nonlinearity correction - Achieves ±0.50% FSO accuracy without external temperature sensors or lookup tables. |
| Robust LIN I/O | ±40 V load-dump protection + 0.5–2.0 V receiver hysteresis - Ensures reliable operation in noisy 12 V vehicle electrical systems. |
| Single-pass calibration | End-of-line calibration using sensor output - Lowers production test time and eliminates separate calibration fixtures. |
Applications
| Automotive Tire Pressure Monitoring (TPMS) | Engine Oil Pressure Sensing |
|---|---|
Use Scenario: Mounted inside tire or oil gallery to monitor real-time pressure under vibration, thermal cycling, and EMI exposure. IC Role / Device Role / Timing Role: Signal conditioner acquires bridge output, compensates for temperature-induced drift, and transmits calibrated value via LIN to ECU. Use Value: Enables direct integration with LIN-based vehicle networks without external microcontroller or signal chain components. | Use Scenario: Installed on engine block to measure oil pressure across −40°C cold start to +150°C peak operating temperature. IC Role / Device Role / Timing Role: Digitizes bridge signal with 14-bit resolution, applies 2nd-order temperature compensation, and outputs PWM for analog gauge driver or LIN for ECU telemetry. Use Value: Delivers ±0.50% FSO accuracy over full automotive temperature range while supporting both legacy analog and modern digital interfaces. |
| Brake Fluid Level Detection | Transmission Fluid Temperature & Pressure |
Use Scenario: Embedded in brake reservoir to detect fluid level drop via strain-gauge-based diaphragm sensor. IC Role / Device Role / Timing Role: Conditions low-level bridge signal, performs single-pass end-of-line calibration, and reports status via LIN publisher frame. Use Value: Integrates sensor excitation, amplification, compensation, and bus interface in one AEC-Q100-qualified device-reducing BOM count and validation effort. | Use Scenario: Dual-sensing module measuring both transmission fluid pressure and temperature using shared bridge and external RTD. IC Role / Device Role / Timing Role: Multiplexes between bridge and RTD inputs, applies independent compensation models, and outputs both values via LIN frame. Use Value: Eliminates need for separate temperature IC and pressure signal conditioner-enabling compact, cost-optimized transmission control units. |
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 | 16-bit sigma-delta ADC; no integrated LIN interface; requires external microcontroller for bus communication. | Requires additional MCU and LIN transceiver; lacks built-in diagnostics and single-pass calibration. | Preferred when higher ADC resolution is critical and system already includes a LIN-capable MCU. |
| AD8553ARZ | Analog-only signal conditioner with programmable gain/offset; no digital compensation, EEPROM, or serial interfaces. | Needs external ADC, memory, and microcontroller for temperature compensation and bus output. | Selected only for ultra-low-power analog front-end stages where digital processing is handled elsewhere. |
Compared with MAX1452ACM+T and AD8553ARZ, the ZSSC3170EA2T uniquely integrates LIN/PWM output, automotive EEPROM, and full digital compensation in a single AEC-Q100-qualified IC-reducing component count, PCB area, and calibration complexity for bridge-based automotive sensors.
Availability
ZSSC3170EA2T is available at Aetrix Electronics and suitable for automotive pressure sensing, engine management systems, and brake fluid monitoring requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for ZSSC3170EA2T 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
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and sensor signal conditioning solutions for automotive and industrial markets.
The ZSSC3170 product line was designed specifically for high-accuracy, AEC-Q100-compliant conditioning of resistive bridge sensors in harsh automotive environments-emphasizing integrated diagnostics, dual-output flexibility, and end-of-line calibration efficiency.
FAQ
What is the operating temperature range supported by the ZSSC3170EA2T?
The ZSSC3170EA2T operates from −40°C to +125°C with full specification compliance, and supports extended operation up to +150°C for 1000 hours. Its accuracy is specified as ±0.50% FSO over the −40°C to +125°C range, making it suitable for under-hood automotive applications including engine oil and transmission pressure sensing. The ZSSC3170EA2T uses internal and external temperature sensing to maintain performance across this range.
Does the ZSSC3170EA2T support both LIN and PWM output simultaneously?
No, the ZSSC3170EA2T supports either LIN or PWM output mode-not both simultaneously-as configured during EEPROM programming. In LIN mode, corrected sensor data and optional temperature values are transmitted in a configurable publisher frame. In PWM mode, the ZSSC3170EA2T drives HOUT (high-side) or LOUT (low-side) with 11-bit resolution duty cycle. Mode selection is fixed per device configuration and cannot be dynamically switched in runtime.
How is calibration performed for the ZSSC3170EA2T?
Calibration for the ZSSC3170EA2T is performed as a single-pass end-of-line procedure using the sensor's own output signal-no external reference required. Coefficients for offset, gain, temperature drift, and nonlinearity are computed externally and written to the device's automotive-certified EEPROM via I²C or LIN-based one-wire interface. The ZSSC3170EA2T executes these corrections autonomously during operation without host intervention.
What package type does the ZSSC3170EA2T use, and is thermal performance documented?
The ZSSC3170EA2T uses the DFN20 (5 mm × 5 mm, 0.5 mm pitch) package with an exposed thermal pad, optimized for automotive thermal dissipation. Thermal resistance (θJA) is documented in the official IDT datasheet as 45°C/W under standard JEDEC 2S2P board conditions. This package enables reliable operation at 150°C junction temperature when properly mounted on thermally enhanced PCBs with adequate copper pour and vias beneath the pad.
Which temperature sensing options are supported by the ZSSC3170EA2T?
The ZSSC3170EA2T supports three temperature sensing configurations: internal diode, external diode (via VTN1/VTN2), or external RTD (resistance temperature detector). Each option is selectable via EEPROM configuration. External diode bias current is programmable between 10–40 µA, and RTD channel gain ranges from 1200–4500 ppm FS/(mV/V), enabling accurate media temperature measurement for compensation and telemetry. The ZSSC3170EA2T can apply independent 2nd-order compensation to temperature sensor readings.
ZSSC3170EA2T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- Sensor Signal Conditioner - Resistive
- Interface:
- I2C, LIN, PWM, ZACwire™ One-Wire Interface
- Voltage - Supply:
- 4.75V ~ 5.25V
- Supplier Device Package:
- 20-SSOP
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
ZSSC3170EA2T FAQ
1.How can I place an order for ZSSC3170EA2T through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3170EA2T 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 ZSSC3170EA2T reliable?
The price and inventory of ZSSC3170EA2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3170EA2T is usually 5 days.
3.What payment methods are accepted for ZSSC3170EA2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3170EA2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC3170EA2T?
ZSSC3170EA2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3170EA2T 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 ZSSC3170EA2T?
For technical support, including ZSSC3170EA2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3170EA2T requirements.
6.How does Aetrix verify that ZSSC3170EA2T is sourced from the original manufacturer or authorized distributors?
All ZSSC3170EA2T 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 ZSSC3170EA2T meets industry standards.
7.What is the process for return or replacement of ZSSC3170EA2T?
All ZSSC3170EA2T units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3170EA2T, 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 ZSSC3170EA2T part is unused and in its original packaging.
Return procedure for ZSSC3170EA2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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