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Renesas ZSSC3154BA3V
- Part No.:
- ZSSC3154BA3V
- Manufacturer:
- Renesas
- Category:
- Specialized
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ZSSC3154BA3V.pdf
- Description:
- IC INTFACE SPECIALIZED 32VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,937
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Product details
Overview
ZSSC3154BA3V from Renesas Electronics is an automotive-grade sensor signal conditioner IC designed for high-accuracy bridge sensor signal amplification, digital compensation, and dual analog output generation. It supports differential bridge input (1.8–267 mV/V), two external temperature sensor channels, and programmable analog outputs with >12-bit resolution from 10% to 90% of full scale. It operates across –40°C to 150°C and is AEC-Q100 qualified for safety-critical vehicle systems including brake pressure and airbag sensors.
For engineers reviewing the ZSSC3154BA3V datasheet, ZSSC3154BA3V pinout, ZSSC3154BA3V application, or ZSSC3154BA3V equivalent, this page delivers verified technical context, calibrated performance metrics, diagnostic behavior, EEPROM-configurable output modes, and validated alternatives for automotive sensor signal conditioning designs requiring functional safety compliance.
Technical Context
The ZSSC3154BA3V integrates a 14-bit ADC, programmable gain amplifier (gain 2.8–420), and calibration microcontroller with on-chip EEPROM to execute real-time digital compensation of offset, sensitivity, nonlinearity, and temperature drift using ROM-resident correction formulas. Its analog front-end supports ratiometric operation referenced to VDDE–VSSE and includes auto-zero offset compensation and broken-chip detection.
It implements three working modes-Normal Operation Mode (NOM), Command Mode (CM), and Diagnostic Mode (DM)-with startup time ≤20 ms and configurable output update rates (0.4–0.6 ms). The device supports dual analog outputs via pins AOUT1 and AOUT2, with sequential or simultaneous mode selection, and provides failsafe fault band signaling (4% or 96% of VDAC) via DFBH pin control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5–5.5 V (supports automotive battery rail with 7.7 V absolute max) |
| ADC Resolution | 14-bit (enables high-precision digitization of low-level bridge signals) |
| Analog Output Resolution | >12-bit over 10–90% of VDAC (ensures stable analog output fidelity in safety-critical ranges) |
| Input Span Range | 1.8–267 mV/V (covers wide range of uncalibrated bridge sensors without external trimming) |
| Operating Temperature | –40°C to 150°C (qualified per AEC-Q100 Grade 0 for under-hood applications) |
| Digital Interfaces | I²C and ZACwire™ one-wire (enables configuration and diagnostics via single pin AOUT1) |
| Failsafe Diagnostics | Diagnostic fault band at 4% or 96% VDAC (provides unambiguous fault indication per ISO 26262 ASIL-B requirements) |
Pinout & Package
Package: QFN32 (5 mm × 5 mm, wettable flank).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog supply / analog ground | Separate analog domain for noise-sensitive AFE and ADC operation |
| VBP / VBN | Differential bridge sensor input | Accepts Wheatstone bridge output with common-mode range up to 0.65×VVBR |
| AOUT1 / AOUT2 | Programmable analog outputs | Deliver conditioned bridge signal, inverse signal, or temperature output; support sequential mode |
| VTN1 / VTN2 | External temperature sensor inputs | Interface to diode or thermistor sensors for temperature compensation and reporting |
| DFBH | Diagnostic fault band level select | Controls whether fault indication appears as low (unconnected) or high (tied to VSSA) level |
| SDA / SCL | I²C interface | Enable EEPROM programming and register access during calibration or field updates |
Key Features
| Feature | Design Value |
|---|---|
| Dual antivalent analog outputs | Enables ASIL-B-compliant redundancy by delivering complementary bridge signals on AOUT1 and AOUT2 |
| Single-pass end-of-line calibration | Reduces production test time by eliminating iterative trimming; uses on-chip EEPROM to store coefficients |
| Integrated broken-chip detection | Monitors internal circuit integrity and forces diagnostic fault band if hardware failure is detected |
| Sensor connection diagnostics | Detects open-circuit (≥100 kΩ) and short-circuit (≤800 Ω) conditions on bridge and temperature sensor inputs |
| Ratiometric analog outputs | Output voltage scales with VDDE–VSSE, eliminating supply variation errors in downstream ADC stages |
Applications
| Brake Pressure Sensing | Airbag Crash Detection |
|---|---|
Use Scenario: Real-time monitoring of hydraulic brake line pressure in ABS/ESC modules under extreme thermal cycling. IC Role / Device Role / Timing Role: Signal conditioner that digitizes, compensates, and outputs dual analog pressure signals with <1.25% FSO total error across –40°C to 150°C. Use Value: Enables functional safety compliance via antivalent outputs and built-in diagnostics, reducing need for external watchdog circuits. | Use Scenario: Conditioning acceleration signals from MEMS crash sensors mounted near vehicle crumple zones. IC Role / Device Role / Timing Role: Amplifies low-mV/V bridge output, applies temperature-compensated nonlinearity correction, and delivers synchronized analog outputs with 0.6 ms response time. Use Value: Supports ASIL-B fault detection through diagnostic fault band signaling and broken-chip monitoring during high-G impact events. |
| Engine Oil Pressure Monitoring | Electric Power Steering Torque Sensing |
Use Scenario: Measuring oil pressure in high-temperature engine blocks where sensor drift must be actively compensated. IC Role / Device Role / Timing Role: Reads two external temperature sensors (VTN1/VTN2) to correct bridge drift and outputs both pressure and temperature signals simultaneously. Use Value: Eliminates need for separate temperature IC and reduces BOM count while maintaining ±0.5% FSO accuracy at 150°C. | Use Scenario: Converting torque-induced strain in steering column torsion bars into precise analog feedback for motor control. IC Role / Device Role / Timing Role: Processes half-bridge sensor input (via VBP/VBN) and delivers conditioned torque signal plus inverse output for cross-checking. Use Value: Provides inherent redundancy and fault detection without additional signal path hardware, meeting EPS system ASIL-C decomposition requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1452AUA+ | 16-bit DAC, no integrated temperature measurement; requires external temp sensor and I²C master for calibration | Lacks dual temperature channel support and failsafe diagnostic fault band signaling | Preferred when higher DAC resolution is required and system already includes discrete temperature sensing and fault management |
| AD8553ARUZ | Chopper-stabilized op-amp-based conditioner; no on-chip EEPROM or digital compensation engine | Requires external MCU for coefficient storage and real-time correction; no built-in diagnostics | Suitable for cost-sensitive non-automotive applications where full AEC-Q100 qualification and autonomous failsafe are not mandatory |
Compared with MAX1452AUA+ and AD8553ARUZ, the ZSSC3154BA3V delivers fully autonomous, EEPROM-based digital compensation, dual temperature channel integration, and ASIL-B-aligned diagnostic features-including broken-chip detection and programmable fault band outputs-in a single QFN32 package, reducing system-level validation effort and PCB area.
Availability
ZSSC3154BA3V is available at Aetrix Electronics and suitable for brake pressure sensing, airbag crash detection, engine oil pressure monitoring, and electric power steering torque sensing requiring stable component supply across automotive production lifecycles.
Supply support for ZSSC3154BA3V 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 ZSSC3154BA3V belongs to Renesas' Automotive Sensor Signal Conditioner product line, engineered specifically for high-reliability, safety-certified signal conditioning of resistive bridge sensors in harsh-temperature vehicle environments.
FAQ
What is the maximum operating temperature supported by the ZSSC3154BA3V?
The ZSSC3154BA3V supports an extended ambient temperature range of –40°C to 150°C and is qualified per AEC-Q100 Grade 0. This rating is confirmed in the datasheet's Operating Conditions table (Section 2.2) and applies specifically to part number ZSSC3154BE3R variants; the ZSSC3154BA3V shares identical thermal specifications and packaging. Its analog front-end and EEPROM retain functionality and accuracy throughout this range, enabling deployment in under-hood and transmission-mounted sensor systems.
Does the ZSSC3154BA3V support both bridge and half-bridge sensor configurations?
Yes, the ZSSC3154BA3V supports differential bridge sensor input via VBP/VBN pins and also accepts half-bridge sensor input measured against an internal reference voltage. Section 3.7 of the datasheet explicitly describes half-bridge sensor measurement, and Table 9 (Pin Configuration) confirms dedicated pins for this mode. The device automatically sequences measurements and applies appropriate conditioning algorithms based on EEPROM configuration, allowing flexible use with multiple sensor topologies without hardware change.
How does the ZSSC3154BA3V implement failsafe diagnostics?
The ZSSC3154BA3V implements failsafe diagnostics through multiple layers: sensor connection loss/short detection (RSCC_TH = 20–100 kΩ, RSSC_TH = 50–800 Ω), broken-chip detection, and diagnostic fault band signaling. When triggered, AOUT1 and AOUT2 drive to either 4% or 96% of VDAC depending on DFBH pin state-providing unambiguous, ratiometric fault indication. These functions operate autonomously within the calibration microcontroller and require no host intervention, satisfying ASIL-B diagnostic coverage requirements per ISO 26262.
Can the ZSSC3154BA3V output temperature data independently from the bridge signal?
Yes, the ZSSC3154BA3V can output a separate, conditioned temperature signal on AOUT2 while delivering the compensated bridge signal on AOUT1. Section 3.2 (Application Modes) and Figure 3 confirm independent assignment of temperature measurement results to analog outputs. The device reads up to two external temperature sensors (VTN1/VTN2) or the internal diode, applies digital compensation, and routes the result to AOUT2 in continuous or sequential mode-all configured via EEPROM settings without firmware changes.
What digital interfaces does the ZSSC3154BA3V provide for configuration and calibration?
The ZSSC3154BA3V provides two digital interfaces: a standard I²C interface (SDA/SCL pins) and ZACwire™ one-wire communication routed through AOUT1. Both support full EEPROM read/write access for calibration coefficient storage, configuration parameter loading, and register interrogation. Section 2.4 and Figure 3 confirm dual-interface capability, and the datasheet specifies I²C clock frequency up to 400 kHz and OWI start window of 30 ms, enabling flexible integration into production calibration and field-service workflows.
ZSSC3154BA3V 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
ZSSC3154BA3V FAQ
1.How can I place an order for ZSSC3154BA3V through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3154BA3V 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 ZSSC3154BA3V reliable?
The price and inventory of ZSSC3154BA3V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3154BA3V is usually 5 days.
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4.How is shipping managed for ZSSC3154BA3V?
ZSSC3154BA3V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3154BA3V 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 ZSSC3154BA3V?
For technical support, including ZSSC3154BA3V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3154BA3V requirements.
6.How does Aetrix verify that ZSSC3154BA3V is sourced from the original manufacturer or authorized distributors?
All ZSSC3154BA3V 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 ZSSC3154BA3V meets industry standards.
7.What is the process for return or replacement of ZSSC3154BA3V?
All ZSSC3154BA3V units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3154BA3V, 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 ZSSC3154BA3V part is unused and in its original packaging.
Return procedure for ZSSC3154BA3V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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