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Renesas ZSSC3154BA1B
- Part No.:
- ZSSC3154BA1B
- Manufacturer:
- Renesas
- Category:
- Sensor and Detector Interfaces
- Package:
- -
- Datasheet:
-
ZSSC3154BA1B.pdf
- Description:
- WAFER (UNSAWN) - BOX
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Product details
Overview
ZSSC3154BA1B from Renesas Electronics is an automotive-grade sensor signal conditioner IC designed for high-accuracy bridge sensor signal amplification, digital compensation of offset/gain/nonlinearity/temperature drift, and dual ratiometric analog output generation. It supports differential bridge input (1.8–267 mV/V), two external temperature sensors (diode or resistor), and operates across –40°C to 150°C. Used in safety-critical pressure and force sensing systems requiring antivalent outputs.
For engineers reviewing the ZSSC3154BA1B datasheet, ZSSC3154BA1B pinout, ZSSC3154BA1B application, or ZSSC3154BA1B equivalent, this page delivers verified technical context, calibrated output behavior, AEC-Q100 qualification details, diagnostic fault band configuration, and confirmed alternatives for automotive sensor conditioning designs.
Technical Context
The ZSSC3154BA1B integrates a programmable gain amplifier (gain 2.8–420), 14-bit ADC, calibration microcontroller with ROM-resident correction algorithm, and dual 12-bit DACs driving AOUT1 and AOUT2. Its signal flow sequences bridge measurement, internal/external temperature sampling, and auto-zero calibration within each cycle.
It supports three working modes: Normal Operation Mode (continuous analog output), Command Mode (EEPROM configuration via I²C or ZACwire™), and Diagnostic Mode (fault signaling via diagnostic fault band). Output behavior-including sequential analog mode, inverse bridge output, or temperature signal routing-is fully EEPROM-configurable without hardware changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5–5.5 V (AEC-Q100 compliant operation; max 7.7 V absolute rating) |
| ADC resolution | 14-bit (enables <1.25% FSO total error over –40°C to 150°C) |
| Analog output resolution | >12-bit (10–90% VDAC range; supports ratiometric output with ±1000 ppm ratiometricity error) |
| Input span | 1.8–267 mV/V (supports low-output MEMS and strain-gauge bridges without external amplification) |
| Operating temperature | –40°C to 150°C (qualified per AEC-Q100 Grade 0; ZSSC3154BE3R variant extends full spec to 150°C) |
| Output update rate | 0.4 ms (HB disabled); 0.6 ms (HB enabled) - enables real-time closed-loop control in brake or suspension systems) |
| Diagnostic fault band | VDFBL < 4% VDAC (DFBH unconnected) or VDFBH > 96% VDAC (DFBH grounded) - provides fail-safe signaling per ISO 26262 ASIL-B requirements) |
Pinout & Package
Package: QFN32 (5 mm × 5 mm, wettable flank, RoHS-compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog supply / ground | Separate analog domain for precision AFE; decoupling required per layout guidelines |
| VBP / VBN | Differential bridge input | High-impedance inputs accepting 1.8–267 mV/V bridge signals; symmetric layout critical |
| AOUT1 / AOUT2 | Primary / secondary analog output | Configurable dual ratiometric outputs; support antivalent, sequential, or temperature-signal modes |
| VTN1 / VTN2 | External temperature sensor inputs | Accept diode or thermistor sensors; bias current 10–40 µA; input range 0.2–1.4 V |
| DFBH | Diagnostic fault band select | Controls fault level polarity: open = low-fault-band; grounded = high-fault-band |
| SCL / SDA | I²C interface | 400 kHz slave interface for configuration, calibration data readback, and diagnostics |
| VBR_T / VBR_B | Bridge excitation reference | Provides stable bridge supply derived from VDDA; enables ratiometric measurement |
Key Features
| Feature | Design Value |
|---|---|
| Dual analog outputs with EEPROM-programmable routing | Enables simultaneous transmission of conditioned bridge signal + temperature signal or antivalent bridge outputs for ASIL-B redundancy |
| Single-pass end-of-line digital calibration | Eliminates manual trimming; reduces calibration time and cost in high-volume automotive production |
| Integrated broken-chip and sensor connection diagnostics | Detects open/short faults on bridge or temperature sensor lines before system deployment |
| On-chip EEPROM with 2 user words | Stores unique sensor coefficients and allows OEM-specific calibration data retention across power cycles |
| Wettable flank QFN32 package | Supports automated optical inspection (AOI) for solder joint reliability in automotive PCB assembly |
Applications
| Automotive Brake Pressure Sensing | Industrial Hydraulic Load Monitoring |
|---|---|
Use Scenario: Real-time monitoring of hydraulic pressure in ABS/ESC systems using silicon piezoresistive bridge sensors. IC Role / Device Role / Timing Role: Signal conditioner performing offset/gain/temperature compensation and generating dual antivalent analog outputs for cross-checking. Use Value: Enables ASIL-B compliance via diagnostic fault band signaling and eliminates need for external trimming components. | Use Scenario: Continuous load feedback in industrial hydraulic cylinders with temperature-compensated strain-gauge bridges. IC Role / Device Role / Timing Role: Front-end conditioner acquiring bridge and external temperature signals, then outputting compensated analog voltage at 2.5 kHz effective update rate. Use Value: Delivers <1.25% FSO accuracy over –40°C to 150°C without recalibration, reducing field maintenance. |
| Electric Power Steering Torque Sensing | Medical Infusion Pump Force Feedback |
Use Scenario: Torque measurement in EPS motor assemblies using Wheatstone bridge torque sensors. IC Role / Device Role / Timing Role: Dual-output conditioner providing primary torque signal and redundant inverse signal for functional safety validation. Use Value: Supports ISO 26262 FMEDA with built-in broken-chip detection and diagnostic fault band activation within 10.4 ms. | Use Scenario: Precise force feedback during syringe plunger actuation in Class II medical infusion pumps. IC Role / Device Role / Timing Role: High-accuracy signal conditioner operating at 125°C ambient, delivering ratiometric analog output referenced to bridge excitation. Use Value: Meets IEC 60601-1 creepage/clearance requirements via QFN32 wettable flank package and 7.7 V absolute max rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1452AAO+T | 16-bit DAC, no integrated temperature measurement; requires external temp sensor; I²C-only interface | Lacks dual analog output configurability and diagnostic fault band; not AEC-Q100 qualified | Use only in non-automotive industrial applications where temperature compensation is handled externally |
| AD8555ARZ | Chopper-stabilized op-amp-based conditioner; analog-only signal path; no EEPROM or digital calibration | No digital compensation, no self-diagnostic features, no sequential output mode | Select when ultra-low offset drift (<0.005 µV/°C) is prioritized over integration and safety features |
Compared with ZSSC3154BA1B, MAX1452AAO+T offers higher DAC resolution but lacks automotive qualification and integrated diagnostics, while AD8555ARZ provides superior analog stability but requires full external calibration infrastructure and cannot support ASIL-B fault signaling.
Availability
ZSSC3154BA1B is available at Aetrix Electronics and suitable for automotive brake pressure sensing, electric power steering torque monitoring, and industrial hydraulic load measurement requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle continuity.
Supply support for ZSSC3154BA1B 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 sensor interface solutions for automotive, industrial, and IoT markets.
The ZSSC3154 product line targets high-reliability automotive sensor signal conditioning, with design focus on AEC-Q100 Grade 0 operation, integrated diagnostics, and single-pass digital calibration for mass-production efficiency.
FAQ
What is the maximum operating temperature supported by the ZSSC3154BA1B?
The ZSSC3154BA1B is rated for continuous operation from –40°C to 150°C and is AEC-Q100 qualified for Grade 0 automotive use. Its electrical parameters-including overall failure (1.25% FSO), INL (±12 LSB), and output leakage current (±40 µA)-are guaranteed across this full range, making it suitable for under-hood and transmission-mounted sensor applications where thermal stress is extreme.
Does the ZSSC3154BA1B support both I²C and one-wire interfaces?
Yes, the ZSSC3154BA1B supports dual digital interfaces: a standard 400 kHz I²C interface (SCL/SDA pins) and a ZACwire™ one-wire interface routed through the AOUT1 pin. Both interfaces allow full EEPROM read/write access for configuration, calibration coefficient loading, and diagnostic register interrogation-enabling flexible factory programming and field reconfiguration without additional pins.
How does the ZSSC3154BA1B implement diagnostic fault signaling?
The ZSSC3154BA1B implements diagnostic fault signaling via its configurable diagnostic fault band on AOUT1 and AOUT2. When a fault is detected (e.g., broken chip, sensor disconnect, EEPROM corruption), outputs drive to either <4% VDAC (if DFBH pin is left open) or >96% VDAC (if DFBH is grounded), enabling immediate system-level fault recognition without software polling. Fault messaging time is 10.4 ms (HB disabled) or 8.6 ms (HB enabled).
Can the ZSSC3154BA1B condition signals from both bridge and half-bridge sensors?
Yes, the ZSSC3154BA1B supports differential bridge sensor inputs (VBP/VBN) and single-ended half-bridge measurements (e.g., VTN1 referenced to internal voltage). The multiplexer sequentially acquires both signal types within one measurement cycle, and the EEPROM-configurable output routing allows AOUT2 to deliver the half-bridge result independently-enabling hybrid sensor architectures in compact space-constrained modules.
What is the role of the VBR_T and VBR_B pins on the ZSSC3154BA1B?
The VBR_T and VBR_B pins on the ZSSC3154BA1B provide the excitation voltage for external bridge sensors, derived from the internal VDDA rail. This ensures ratiometric operation: the analog outputs scale proportionally to bridge excitation, eliminating errors from supply variation. Their voltage difference (VVBR = VBR_T − VBR_B) is regulated to VDDA and used as the reference for ADC conversion and DAC output scaling.
ZSSC3154BA1B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ZSSC3154BA1B FAQ
1.How can I place an order for ZSSC3154BA1B through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSSC3154BA1B 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 ZSSC3154BA1B reliable?
The price and inventory of ZSSC3154BA1B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSSC3154BA1B is usually 5 days.
3.What payment methods are accepted for ZSSC3154BA1B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSSC3154BA1B transactions.
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4.How is shipping managed for ZSSC3154BA1B?
ZSSC3154BA1B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSSC3154BA1B 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 ZSSC3154BA1B?
For technical support, including ZSSC3154BA1B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSSC3154BA1B requirements.
6.How does Aetrix verify that ZSSC3154BA1B is sourced from the original manufacturer or authorized distributors?
All ZSSC3154BA1B 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 ZSSC3154BA1B meets industry standards.
7.What is the process for return or replacement of ZSSC3154BA1B?
All ZSSC3154BA1B units undergo pre-shipment inspection (PSI). If there is an issue with ZSSC3154BA1B, 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 ZSSC3154BA1B part is unused and in its original packaging.
Return procedure for ZSSC3154BA1B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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