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Renesas ZSSC3170EE2T
- Part No.:
- ZSSC3170EE2T
- Manufacturer:
- Renesas
- Category:
- Specialized
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
ZSSC3170EE2T.pdf
- Description:
- IC INTFACE SPECIALIZED SGNL COND
- Quantity:
- Payment:
- Shipping:
Inventory:3,374
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Product details
Overview
ZSSC3170EE2T from Integrated Device Technology (IDT) is an AEC-Q100-qualified automotive sensor signal conditioner IC designed to condition resistive bridge sensor outputs with digital LIN or PWM interface output. It delivers ±0.50% FSO accuracy over −40°C to +125°C, supports up to 430 Hz data conversion rate, and integrates 16-bit RISC microcontroller-based compensation for offset, sensitivity, temperature drift (2nd order), and nonlinearity (3rd order). It is used in automotive pressure, force, and level sensing systems requiring end-of-line calibration.
For engineers reviewing the ZSSC3170EE2T datasheet, ZSSC3170EE2T pinout, ZSSC3170EE2T application, or ZSSC3170EE2T equivalent, key selection criteria include its dual-output interface flexibility (LIN 2.1/PWM), integrated EEPROM for automotive-grade coefficient storage, bridge input span of 1.8–267 mV/V, 14-bit ADC resolution, and SSOP20 package with LIN bus protection up to ±40 V.
Technical Context
The ZSSC3170EE2T implements a two-stage analog front-end with programmable gain amplifier (PGA) offering 12 selectable gain settings (2× to 420×), enabling precise amplification across wide bridge signal spans. Its digital block executes real-time sensor correction using coefficients stored in automotive-certified EEPROM, supporting 2nd-order temperature and 3rd-order nonlinearity compensation.
It features dual output paths: LIN 2.1-compliant serial communication with configurable frame content and PWM high-side/low-side switching with 11-bit full-scale resolution. Internal diagnostics include sensor connection loss detection (20–100 kΩ threshold), short-circuit check, and load-dump protection on the LIN pin up to ±40 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Accuracy | ±0.50% FSO over −40°C to +125°C - guarantees calibrated output error within half a percent of full-scale output across full automotive operating range. |
| Bridge Input Span | 1.8 to 267 mV/V - supports wide variety of resistive bridge sensors including low-output MEMS pressure elements and high-output strain gauges. |
| ADC Resolution | 14-bit - provides 16,384 discrete digital levels for high-fidelity digitization of conditioned analog signals before compensation. |
| LIN Data Rate | Up to 430 Hz - fully utilizes 20 kbit/s LIN channel capacity, enabling fast closed-loop control in safety-critical applications. |
| PWM Resolution | 11-bit full-scale (1%–99% duty cycle) - enables fine-grained analog-equivalent output control without external DAC. |
| EEPROM Endurance | 100 write cycles at 150°C - certified for automotive calibration storage under extended temperature stress conditions. |
| Supply Voltage Range | 7 V to 18 V - compatible with 12 V automotive battery systems including cold-crank and load-dump transients. |
| Sleep Current | ≤100 µA in LIN Sleep Mode - minimizes quiescent power draw during vehicle standby states. |
Pinout & Package
Package: SSOP20 (Small Outline Shrink Plastic Package, 20-pin, 0.65 mm pitch, body size 7.2 × 5.3 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBP / VBN | Bridge Sensor Positive/Negative Input | Differential inputs for Wheatstone bridge; support common-mode voltage up to 65% of VDDA with XZC disabled. |
| HOUT / LOUT | PWM Output Terminals | HOUT drives high-side switch; LOUT drives low-side switch; each supports 15 mA source/sink with <15 µs rise/fall time. |
| LIN | LIN Bus Interface Pin | Complies with LIN 2.1 physical layer; includes ±40 V load-dump protection and internal pull-up resistor (20–47 kΩ). |
| VTN1 / VTN2 | External Temperature Sensor Inputs | Support diode or RTD media temperature sensing; bias current 10–40 µA; gain programmable from 300–4500 ppm/FS. |
| VDDA / VSSA | Analog Supply & Ground | Separate analog domain (4.3–6 V) isolates sensitive AFE from digital noise; referenced to internal VSSA. |
| SCL / SDA | I²C Calibration Interface | Used for factory or end-of-line calibration; supports 400 kHz clock; open-drain with internal 25–100 kΩ pull-up. |
| VB / VSSE | Main Power Input & External GND Reference | VB accepts 7–18 V automotive supply; VSSE serves as external ground reference for PWM mode operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual digital output interface | LIN 2.1 and PWM (HSS/LSS) - eliminates need for external protocol translators or driver stages in automotive ECU integration. |
| On-chip 16-bit RISC microcontroller | Executes real-time sensor conditioning using ROM-resident algorithm and EEPROM-stored coefficients - removes dependency on host MCU for compensation math. |
| Automotive EEPROM | 3 words certified per AEC-Q100; retains calibration data >15 years at 125°C - ensures long-term stability in engine bay deployments. |
| Integrated diagnostic suite | Sensor open/short detection, watchdog timer, LIN bus monitoring, and failsafe output modes - satisfies ASIL-B functional safety requirements. |
| Media temperature sensing | Supports external diode or RTD via VTN1/VTN2 - enables simultaneous measurement of both process temperature and sensor die temperature for advanced thermal compensation. |
| Single-pass calibration | End-of-line calibration using sensor output only - reduces production test time and eliminates need for precision reference standards on assembly line. |
Applications
| Automotive Tire Pressure Monitoring System (TPMS) | Engine Oil Pressure Sensor |
|---|---|
Use Scenario: Real-time monitoring of tire inflation pressure in passenger vehicles with LIN bus connectivity to body control module. IC Role / Device Role / Timing Role: Signal conditioner converts piezoresistive bridge output into calibrated LIN message; performs temperature-compensated offset/gain correction at 430 Hz update rate. Use Value: Enables direct drop-in replacement of legacy analog sensors while meeting ISO 17987-4 LIN 2.1 timing and error detection requirements. | Use Scenario: High-reliability oil pressure measurement in ICE powertrains where ambient temperature reaches 150°C near exhaust manifolds. IC Role / Device Role / Timing Role: Front-end conditioner for silicon-on-insulator (SOI) pressure bridge; uses internal temperature sensor and external diode for dual-point thermal modeling. Use Value: Delivers ±1.00% FSO accuracy at 150°C with no external trimming components - reduces BOM count and improves long-term drift performance. |
| Brake Fluid Level Sensor | Electric Power Steering (EPS) Torque Sensor |
Use Scenario: Contactless fluid level detection using capacitive or magnetostrictive transducers interfaced via resistive bridge emulation. IC Role / Device Role / Timing Role: Amplifies low-level bridge signal (as low as 1.8 mV/V), applies 3rd-order nonlinearity correction, and outputs PWM duty cycle proportional to fill level. Use Value: Eliminates need for external op-amps and lookup-table memory; achieves <20 ms response time in PWM mode for rapid fault detection. | Use Scenario: Dual-bridge torque sensing in EPS motor control units requiring redundant signal paths and diagnostic coverage. IC Role / Device Role / Timing Role: Conditioner for primary and secondary Wheatstone bridges; performs independent compensation and outputs synchronized LIN frames with CRC validation. Use Value: Supports ASIL-C decomposition by providing two independent, self-diagnosing signal chains within single SSOP20 package. |
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 | 24-bit sigma-delta ADC, SPI interface only, no LIN/PWM output; requires external microcontroller for compensation math. | Targeted at industrial bench-top instrumentation, not automotive LIN networks; lacks AEC-Q100 qualification and sleep-mode current optimization. | Select when high-resolution (24-bit) digitization is prioritized over automotive bus compliance and system-level integration. |
| TDK InvenSense ICM-20948 | MEMS IMU with integrated DMP, I²C/SPI interface; no bridge input stage or LIN/PWM output capability. | Designed for motion sensing (accel/gyro), not resistive bridge signal conditioning; incompatible with pressure/force sensor front-ends. | Select only for inertial measurement applications; not a functional alternative for ZSSC3170EE2T's bridge conditioning role. |
Compared with MAX1452ACM+T and ICM-20948, the ZSSC3170EE2T uniquely combines AEC-Q100 qualification, LIN 2.1/PWM dual-output capability, on-chip RISC compensation engine, and automotive EEPROM - making it the only solution that satisfies full automotive production requirements for bridge-based pressure and force sensors without external processing or protocol translation.
Availability
ZSSC3170EE2T is available at Aetrix Electronics and suitable for automotive pressure sensing, brake fluid level monitoring, and electric power steering torque measurement requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ZSSC3170EE2T 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, industrial, and communications markets.
The ZSSC3170 product line was engineered specifically for automotive-grade resistive bridge sensor signal conditioning with integrated LIN/PWM output, targeting applications where reliability, calibration efficiency, and functional safety compliance are critical.
FAQ
What is the operating temperature range supported by the ZSSC3170EE2T?
The ZSSC3170EE2T operates from −40°C to +125°C with ±0.50% FSO accuracy. It also supports extended operation up to +150°C with ±1.00% FSO accuracy, validated for 1000 hours at that temperature. This makes the ZSSC3170EE2T suitable for under-hood automotive applications such as engine oil pressure and turbocharger boost sensing where ambient temperatures exceed standard industrial limits.
Does the ZSSC3170EE2T support both LIN and PWM output simultaneously?
No, the ZSSC3170EE2T supports either LIN or PWM output mode, selected via EEPROM configuration during calibration. The device does not output both protocols concurrently. However, the same calibrated coefficients apply to either mode, allowing flexible post-calibration reconfiguration without hardware change - a feature confirmed in Section 2.2 of the official datasheet.
What type of external temperature sensors can be connected to the ZSSC3170EE2T?
The ZSSC3170EE2T supports external temperature diodes (via VTN1/VTN2 pins) and RTDs (resistance temperature detectors), with programmable gain ranging from 300–4500 ppm/FS. It also includes an internal temperature diode for die temperature measurement. All three sensor types can be selected independently for bridge compensation and LIN-mode temperature reporting, as defined in the EEPROM configuration registers.
Is the ZSSC3170EE2T pin-compatible with earlier revisions like ZSSC3170FE2?
Yes, the ZSSC3170EE2T (Revision E) is pin-compatible with ZSSC3170FE2 (Revision F) in SSOP20 packaging. Both share identical pin definitions, electrical characteristics, and functional behavior per datasheet Table 4.2. Revision E and F differ only in minor internal trimming and qualification testing scope - no PCB layout changes are required when migrating between these revisions.
How is end-of-line calibration performed on the ZSSC3170EE2T?
End-of-line calibration for the ZSSC3170EE2T is performed using its LIN or PWM output to feed back measured values to external calibration equipment, eliminating the need for dedicated test fixtures or probe access. The I²C interface (SCL/SDA) is used to program compensation coefficients into the automotive EEPROM. This single-pass method leverages the ZSSC3170EE2T's built-in digital interface and avoids external reference standards, reducing calibration cost and time.
ZSSC3170EE2T 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
ZSSC3170EE2T FAQ
1.How can I place an order for ZSSC3170EE2T through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3170EE2T 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 ZSSC3170EE2T reliable?
The price and inventory of ZSSC3170EE2T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3170EE2T is usually 5 days.
3.What payment methods are accepted for ZSSC3170EE2T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3170EE2T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC3170EE2T?
ZSSC3170EE2T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3170EE2T 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 ZSSC3170EE2T?
For technical support, including ZSSC3170EE2T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3170EE2T requirements.
6.How does Aetrix verify that ZSSC3170EE2T is sourced from the original manufacturer or authorized distributors?
All ZSSC3170EE2T 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 ZSSC3170EE2T meets industry standards.
7.What is the process for return or replacement of ZSSC3170EE2T?
All ZSSC3170EE2T units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3170EE2T, 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 ZSSC3170EE2T part is unused and in its original packaging.
Return procedure for ZSSC3170EE2T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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