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Renesas ZSSC3154BE3V
- Part No.:
- ZSSC3154BE3V
- Manufacturer:
- Renesas
- Category:
- Specialized
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ZSSC3154BE3V.pdf
- Description:
- IC INTFACE SPECIALIZED 32VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:4,470
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Product details
Overview
ZSSC3154BE3V from Renesas Electronics is an AEC-Q100 qualified automotive sensor signal conditioner IC designed for high-accuracy bridge sensor signal amplification, digital compensation (offset, gain, nonlinearity, temperature drift), and dual ratiometric analog output generation. It supports differential bridge, half-bridge, or external diode/thermistor temperature inputs, operates from −40°C to 150°C, and delivers >12-bit analog output resolution across 10–90% of VDAC with 14-bit ADC core.
For engineers reviewing the ZSSC3154BE3V datasheet, ZSSC3154BE3V pinout, ZSSC3154BE3V application, or ZSSC3154BE3V equivalent, this page provides verified technical context on dual-output safety-critical conditioning, EEPROM-programmable signal routing, sequential analog output mode, broken-chip detection, and diagnostic fault band implementation per ISO 26262 ASIL-B supporting systems.
Technical Context
The ZSSC3154BE3V integrates a programmable gain amplifier (gain 2.8–420), 14-bit sigma-delta ADC, calibration microcontroller (CMC) with ROM-resident correction algorithm, and dual DAC-based analog output stages. Its signal flow sequences bridge voltage, internal/external temperature, and half-bridge inputs through a multiplexer before digital conditioning using EEPROM-stored coefficients.
It supports three working modes: Normal Operation Mode (continuous signal conditioning), Command Mode (EEPROM configuration via I²C or ZACwire™), and Diagnostic Mode (fault indication via AOUT1/AOUT2 forced into diagnostic fault bands). Fail-safe features include sensor connection loss detection (20–100 kΩ threshold), short detection (50–800 Ω), and overvoltage protection up to 7.7 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 14-bit - Enables high-precision digitization of low-level bridge signals (1.8–267 mV/V span) with <3 LSB INL error. |
| Analog Output Resolution | >12-bit (10–90% VDAC) - Ensures monotonic, high-fidelity analog outputs suitable for ASIL-B functional safety monitoring. |
| Operating Temperature | −40°C to +150°C - Validated for under-hood automotive applications including engine control and transmission sensors. |
| Supply Voltage | 4.5 V to 5.5 V (VDDE) - Ratiometric operation ensures output stability against supply variation (1000 ppm ratiometricity error). |
| Dual Analog Outputs | AOUT1 (primary conditioned bridge signal) and AOUT2 (programmable: inverse bridge, temperature, or half-bridge) - Supports antivalent output for safety redundancy. |
| Diagnostic Fault Band | VDFBL < 4% VDAC (DFBH unconnected) or VDFBH > 96% VDAC (DFBH grounded) - Provides unambiguous hardware-level fault signaling without software intervention. |
| Startup Time | 20 ms - First valid analog output delivered within 20 ms of power-on, enabling fast system readiness in start-stop applications. |
Pinout & Package
Package: QFN32 (5 mm × 5 mm, wettable flank, RoHS-compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog supply / analog ground | Separate analog domain (−0.3 V to 6.5 V) isolates noise-sensitive AFE from digital logic. |
| VDD / VSSA | Digital supply / shared analog ground | Digital core powered independently; VSSA serves as common reference for analog and digital domains. |
| VBP / VBN | Differential bridge input | High-EMC robust inputs accept 1.8–267 mV/V spans; support symmetric low-pass filtering for noise rejection. |
| VTN1 / VTN2 | External temperature sensor inputs | Support diode or thermistor biasing (10–40 µA); enable parallel temperature measurement for drift compensation. |
| AOUT1 / AOUT2 | Programmable analog outputs | Each delivers ratiometric, buffered analog signal (±1.3 mA drive); configurable for antivalent safety outputs or sequential mode. |
| SDA / SCL | I²C interface | 400 kHz slave interface for EEPROM programming, real-time diagnostics, and coefficient updates during calibration. |
| AOUT1 (OWI) | ZACwire™ one-wire interface | Enables single-pin digital communication (configuration/calibration) without dedicated I²C lines-reduces BOM count. |
| DFBH | Diagnostic fault band select | Hardware-configurable pin sets fault level polarity: open = low-band fault; grounded = high-band fault-no firmware dependency. |
Key Features
| Feature | Design Value |
|---|---|
| Dual antivalent analog outputs | Enables ISO 26262 ASIL-B compliance by delivering two independent, functionally diverse representations of the same physical quantity (e.g., bridge signal and its complement). |
| Single-pass end-of-line calibration | Reduces production test time by eliminating iterative trimming; full offset/gain/nonlinearity/temperature drift compensation performed in one calibration step. |
| Integrated broken-chip detection | Monitors internal oscillator, RAM, ROM, and EEPROM integrity at startup; triggers Diagnostic Mode if any failure detected-no external watchdog required. |
| Sequential analog output mode | Time-multiplexes two conditioned signals (e.g., bridge + temperature) onto AOUT1, reducing wiring complexity in space-constrained modules. |
| 2-word user EEPROM | Stores application-specific identifiers, calibration timestamps, or manufacturing data-accessible via I²C or OWI without affecting signal conditioning parameters. |
Applications
| Engine Coolant Temperature Sensing | Brake Pressure Transducer Conditioning |
|---|---|
|
Use Scenario: Real-time monitoring of coolant temperature using a silicon diode sensor embedded in the engine block, subject to thermal shock and EMI. IC Role / Device Role / Timing Role: ZSSC3154BE3V conditions the diode's voltage output, compensates for self-heating and ambient drift using internal/external temperature readings, and delivers two synchronized analog outputs for redundant ECU channels. Use Value: Eliminates external op-amps and trim resistors while meeting AEC-Q100 Grade 0 (−40°C to +150°C) and EMC robustness requirements per CISPR 25 Class 5. |
Use Scenario: High-reliability pressure sensing in hydraulic brake systems where sensor failure must be detectable within milliseconds. IC Role / Device Role / Timing Role: ZSSC3154BE3V interfaces with a piezoresistive bridge, performs real-time temperature-compensated linearization, and outputs antivalent analog signals (bridge + inverse) to dual ASIL-B microcontrollers. Use Value: Built-in sensor connection loss detection (20–100 kΩ range) and diagnostic fault bands enable fail-safe shutdown within 10.4 ms-meeting ISO 26262 ASIL-B timing constraints. |
| Transmission Oil Pressure Monitoring | Exhaust Gas Temperature (EGT) Sensor Interface |
|
Use Scenario: Continuous oil pressure monitoring in automatic transmissions exposed to vibration, oil contamination, and wide thermal cycling. IC Role / Device Role / Timing Role: ZSSC3154BE3V acquires bridge sensor data, applies EEPROM-stored polynomial compensation for nonlinearity and temperature hysteresis, and outputs primary pressure signal on AOUT1 and compensated temperature on AOUT2. Use Value: >12-bit analog output resolution ensures <0.1% FSO accuracy over lifetime; wettable flank QFN32 enables automated optical inspection (AOI) for zero-defect automotive manufacturing. |
Use Scenario: High-temperature exhaust gas sensing using a K-type thermocouple with cold-junction compensation via external diode. IC Role / Device Role / Timing Role: ZSSC3154BE3V measures thermocouple voltage differentially, reads external diode temperature at VTN1 for CJC, computes compensated EGT digitally, and outputs result on AOUT1 with diagnostic flag on AOUT2. Use Value: Simultaneous dual-sensor acquisition (bridge + temperature) and 14-bit ADC resolution enable sub-1°C temperature accuracy despite 150°C ambient-critical for SCR catalyst control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1452ACM+ (Maxim Integrated) | 16-bit DAC, no integrated temperature measurement; requires external temp sensor and separate I²C master for calibration. | Lacks built-in dual temperature channels and sequential analog output mode; not AEC-Q100 qualified out-of-box. | Choose MAX1452ACM+ only when legacy calibration infrastructure exists and temperature compensation is handled externally. |
| AD8555ACPZ (Analog Devices) | Chopper-stabilized amplifier architecture; no EEPROM-based digital correction; analog-only trimming required. | No digital compensation for nonlinearity or temperature drift; limited to ±1% FSO accuracy vs. ZSSC3154BE3V's 1.25% FSO up to 150°C. | Use AD8555ACPZ for cost-sensitive non-safety applications where digital calibration and ASIL-B compliance are not required. |
Compared with MAX1452ACM+ and AD8555ACPZ, the ZSSC3154BE3V uniquely integrates dual temperature sensing, EEPROM-programmable antivalent outputs, and single-pass calibration-enabling faster time-to-market for ASIL-B automotive sensors without external trimming or secondary processors.
Availability
ZSSC3154BE3V is available at Aetrix Electronics and suitable for engine management, brake pressure monitoring, transmission control, and exhaust gas sensing requiring stable component supply across automotive Tier-1 production programs.
Supply support for ZSSC3154BE3V 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT markets.
The ZSSC3154BE3V belongs to Renesas' Automotive Signal Conditioning product line, engineered specifically for high-accuracy, safety-critical bridge sensor interfacing in harsh environments-prioritizing AEC-Q100 qualification, diagnostic coverage, and production-ready calibration.
FAQ
What is the maximum operating temperature supported by the ZSSC3154BE3V?
The ZSSC3154BE3V is rated for continuous operation from −40°C to +150°C, validated per AEC-Q100 Grade 0. This extended range is confirmed in Table 2 of the datasheet (R36DS0046ED0160 Rev.1.50) and applies specifically to the ZSSC3154BE3V variant with QFN32 wettable flank packaging. At 150°C, overall failure remains ≤1.25% FSO with XZC disabled.
Does the ZSSC3154BE3V support both I²C and one-wire interfaces simultaneously?
Yes-the ZSSC3154BE3V supports concurrent I²C (SDA/SCL pins) and ZACwire™ one-wire (via AOUT1) interfaces. Both can be used for EEPROM configuration and real-time diagnostics, but only one interface may be active per command cycle. The I²C interface operates at up to 400 kHz, while ZACwire™ uses a 30 ms start window per the datasheet section 2.4.
How does the ZSSC3154BE3V implement diagnostic fault signaling?
The ZSSC3154BE3V forces AOUT1 and AOUT2 into predefined diagnostic fault bands upon detecting faults (e.g., broken chip, sensor disconnect, EEPROM corruption). When DFBH is unconnected, fault level is <4% VDAC; when DFBH is grounded, fault level is >96% VDAC. This hardware-level signaling requires no firmware execution and activates within 10.4 ms (FMT parameter, Table 3).
Can the ZSSC3154BE3V condition both bridge and temperature signals in the same measurement cycle?
Yes-the ZSSC3154BE3V sequences inputs via an internal multiplexer: bridge signal → temperature for compensation → temperature for output → half-bridge → AFE auto-zero. This occurs within a single measurement cycle (0.4 ms HB disabled, 0.6 ms HB enabled), enabling simultaneous bridge conditioning and dual temperature reporting without external sequencing logic.
What package type is used for the ZSSC3154BE3V and why is it suitable for automotive use?
The ZSSC3154BE3V uses a QFN32 (5 mm × 5 mm) package with wettable flanks. This package enables reliable automated optical inspection (AOI) of solder joints-a critical requirement for zero-defect automotive manufacturing. Its 0.5 mm pitch, exposed thermal pad, and RoHS compliance meet IPC-7351B standards for under-hood thermal and mechanical reliability.
ZSSC3154BE3V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Sensor Signal Conditioner - Resistive
- Interface:
- I2C, ZACwire™ One-Wire Interface
- Voltage - Supply:
- 4.5V ~ 5.5V
- Supplier Device Package:
- 32-VFQFPN (5x5)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
ZSSC3154BE3V FAQ
1.How can I place an order for ZSSC3154BE3V through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3154BE3V 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 ZSSC3154BE3V reliable?
The price and inventory of ZSSC3154BE3V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3154BE3V is usually 5 days.
3.What payment methods are accepted for ZSSC3154BE3V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3154BE3V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSSC3154BE3V?
ZSSC3154BE3V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3154BE3V 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 ZSSC3154BE3V?
For technical support, including ZSSC3154BE3V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3154BE3V requirements.
6.How does Aetrix verify that ZSSC3154BE3V is sourced from the original manufacturer or authorized distributors?
All ZSSC3154BE3V 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 ZSSC3154BE3V meets industry standards.
7.What is the process for return or replacement of ZSSC3154BE3V?
All ZSSC3154BE3V units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3154BE3V, 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 ZSSC3154BE3V part is unused and in its original packaging.
Return procedure for ZSSC3154BE3V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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