My Inquiry
My Account
Infineon Technologies CY8C4147LCE-HV403
- Part No.:
- CY8C4147LCE-HV403
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CY8C4147LCE-HV403.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 32VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:100
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4147LCE-HV403 from Infineon is a 32-bit Arm® Cortex®-M0+ MCU with integrated high-voltage precision analog subsystem, AEC-Q100 qualified for automotive lead-acid battery monitoring. It features dual 16–20+ bit ΔΣ ADCs (current/voltage/temperature/diagnostic), operates directly from 12/24-V battery (up to 42 V), includes LIN 2.2A transceiver, and supports ISO 26262 ASIL B hardware metrics.
For engineers reviewing the CY8C4147LCE-HV403 datasheet, CY8C4147LCE-HV403 pinout, CY8C4147LCE-HV403 application, or CY8C4147LCE-HV403 equivalent, key selection criteria include HV battery input tolerance, dual-precision ΔΣ ADC channel configuration, LIN protocol compliance, ASIL B safety architecture, and 32-QFN wettable flanks package compatibility with automotive PCB assembly requirements.
Technical Context
The device integrates a dedicated Precision Analog Channel Subsystem (PACSS) with independent sequencer-driven acquisition across four measurement domains: current (with automatic gain control), voltage (HV input divider), temperature (internal/external), and diagnostic channels - all with digital filtering, accumulators, and threshold comparison. Its high-voltage subsystem includes an integrated LIN PHY compliant with LIN 2.2A/SAE J2602/ISO 17987 and on-die LDOs enabling direct 12/24-V battery connection.
Functional safety implementation includes SECDED ECC on 128 KB flash, 8 KB SRAM, and 8 KB data flash; MPU-enforced memory isolation; windowed WDT with challenge-response; supply monitors for 3.3-V and 1.8-V rails; and redundant analog paths (backup reference, dual voltage/current/temperature sensing) validated per ISO 26262-10:2018E Clause 9 for ASIL B hardware metrics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, up to 48 MHz - enables real-time battery state-of-charge (SoC) and state-of-health (SoH) computation with deterministic latency. |
| Flash Memory | 128 KB code flash + 8 KB data flash, both with ECC - ensures firmware integrity and parameter storage reliability in automotive vibration/EMI environments. |
| ADC Resolution | Dual ΔΣ ADCs: 16–20+ bits effective - delivers <1 mV voltage measurement accuracy and <1 mA current resolution over full battery temperature range. |
| HV Input Range | Direct 12/24-V battery operation, tolerant to 42 V - eliminates external HV level-shifting and reduces BOM count in battery management modules. |
| LIN Compliance | LIN 2.2A, 2.1, 2.0, 1.3, SAE J2602, ISO 17987 - supports interoperability with legacy and next-gen vehicle body control networks without protocol translation. |
| Safety Certification | AEC-Q100 Grade 1, ISO 26262 ASIL B hardware metrics - satisfies functional safety requirements for battery monitoring in ASIL-B classified systems. |
| Package | 32-QFN (6 × 6 mm) with wettable flanks - enables automated optical inspection (AOI) of solder joints in automotive-grade SMT lines. |
Pinout & Package
32-pin QFN package (6 × 6 mm, 0.5 mm pitch) with wettable flanks for automotive-grade solder joint inspection. Exposed thermal pad enhances thermal dissipation under continuous HV analog operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O Supply Rail | 3.3-V supply for GPIOs and digital peripherals; decoupling required for LIN noise immunity. |
| VDDD | Digital Core Supply | 1.8-V regulated core supply; internal LDO derived from battery input enables single-rail system design. |
| VDDA | Analog Supply Rail | 3.3-V analog domain supply; separate from VDDIO to minimize digital switching noise coupling into ADC measurements. |
| VREFH/VREFL | ADC Reference Inputs | External reference pair for precision voltage channel; supports ratiometric or absolute measurement modes. |
| AIN0–AIN3 | Analog Input Channels | Four dedicated inputs: AIN0 (current sense), AIN1 (battery voltage via HV divider), AIN2 (NTC thermistor), AIN3 (diagnostic test point). |
| LIN_TX/LIN_RX | LIN Transceiver I/O | Differential LIN bus interface; integrated PHY eliminates need for external transceiver in cost-sensitive battery sensors. |
| SWDCLK/SWDIO | Debug Interface | Two-pin Serial Wire Debug interface supporting programming, calibration, and runtime diagnostics in sealed battery enclosures. |
Key Features
| Feature | Design Value |
|---|---|
| Dual ΔΣ ADC with sequencer | Independent acquisition scheduling across current, voltage, temperature, and diagnostic channels - enables synchronized multi-parameter sampling without CPU intervention. |
| Integrated LIN PHY | Full LIN 2.2A protocol stack support in hardware - reduces firmware overhead and eliminates external transceiver BOM cost and layout area. |
| HV input divider network | On-die resistor ladder for battery voltage scaling - achieves ±0.5% ratio tolerance over -40°C to +125°C, eliminating external precision resistors. |
| ASIL B-compliant safety architecture | Hardware-enforced memory protection (MPU), SECDED ECC on all safety-critical memories, and dual-redundant analog paths - satisfies ISO 26262 hardware metrics without software safety layer overhead. |
| Wettable flank QFN | Side-wettable leads enable AOI verification of solder fillet height - meets IPC-A-610 Class 3 requirements for automotive electronics manufacturing. |
Applications
| Battery Management Unit (BMU) | Start-Stop System Monitor |
|---|---|
Use Scenario: Real-time monitoring of 12-V lead-acid battery voltage, current, temperature, and health status in passenger vehicles with engine start-stop functionality. IC Role / Device Role / Timing Role: Primary battery sensor MCU with integrated LIN interface for communication to body control module (BCM); performs periodic SoC/SoH calculation every 500 ms. Use Value: Eliminates external ADC, LIN transceiver, and voltage dividers - reduces BMU BOM by 7 components and PCB area by 28 mm². | Use Scenario: Detecting battery degradation during repeated micro-hybrid cycling (1000+ stop-start events/day) in urban driving conditions. IC Role / Device Role / Timing Role: High-accuracy current channel with automatic gain control measures charge/discharge pulses as short as 20 ms at ±1 mA resolution. Use Value: Enables predictive battery replacement alerts with >92% accuracy over 5-year field life, reducing warranty claims. |
| Commercial Vehicle Battery Telematics | Aftermarket Battery Health Scanner |
Use Scenario: Integration into fleet telematics gateways to report battery voltage sag, cranking performance, and alternator output health via CAN-LIN bridge. IC Role / Device Role / Timing Role: LIN slave node collecting analog data and forwarding via SCB UART-to-CAN gateway; supports LIN wakeup on battery voltage threshold breach. Use Value: Provides OEM-level battery diagnostics without requiring vehicle-specific CAN database integration. | Use Scenario: Handheld diagnostic tool for service technicians performing rapid battery health assessment during routine maintenance. IC Role / Device Role / Timing Role: Self-contained measurement engine with onboard temperature compensation and LIN-based reporting to mobile app via Bluetooth gateway. Use Value: Delivers lab-grade voltage/current/temperature correlation in <3 seconds, replacing benchtop multimeters in field use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar battery monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17205 | Dedicated fuel gauge IC with ModelGauge™ m5 algorithm; no MCU or LIN interface; 16-bit SAR ADC only. | Optimized for Li-ion SoC estimation; lacks HV input, LIN, or temperature diagnostics for lead-acid systems. | Select when primary need is high-accuracy Li-ion capacity tracking without vehicle bus integration. |
| ADuC7023 | ARM7TDMI-based MCU with 12-bit SAR ADC; no integrated LIN PHY; requires external transceiver and HV scaling. | General-purpose industrial analog front-end; not AEC-Q100 qualified or ISO 26262 assessed. | Select for non-automotive, cost-sensitive battery monitoring where functional safety certification is not required. |
Compared with MAX17205 and ADuC7023, CY8C4147LCE-HV403 uniquely combines AEC-Q100 qualification, integrated LIN PHY, HV battery tolerance, dual high-resolution ΔΣ ADCs, and ISO 26262 ASIL B hardware compliance - making it the only single-chip solution for automotive lead-acid battery monitoring with production-ready safety certification.
Availability
CY8C4147LCE-HV403 is available at Aetrix Electronics and suitable for automotive battery management units, start-stop system monitors, commercial vehicle telematics gateways, and aftermarket battery health scanners requiring stable component supply and long-term lifecycle support.
Supply support for CY8C4147LCE-HV403 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and manufacturing infrastructure serving Tier-1 automotive suppliers.
CY8C4147LCE-HV403 belongs to the PSoC™ 4 HVPA-144K product line, designed specifically for high-voltage, safety-critical battery monitoring in 12/24-V automotive systems - integrating precision analog, LIN connectivity, and functional safety in a single die.
FAQ
What is the maximum battery voltage the CY8C4147LCE-HV403 can monitor directly?
The device tolerates up to 42 V on its HV input pins and operates directly from 12-V or 24-V battery rails without external level-shifting. Its integrated voltage divider network scales battery voltage for the precision ADC, supporting accurate measurement across the full automotive battery range including load dump transients.
Does CY8C4147LCE-HV403 require external components for LIN communication?
No. The device includes a fully integrated LIN 2.2A-compliant physical layer (PHY) with built-in bus driver and receiver circuitry. Only a single 1-kΩ pull-up resistor to battery voltage and standard LIN bus termination are required - no external transceiver IC is needed.
How does the dual ΔΣ ADC architecture improve battery measurement accuracy?
Each ADC channel (voltage and current) uses independent 16–20+ bit ΔΣ conversion with programmable oversampling and digital filtering. The voltage channel employs an on-die HV divider with ±0.5% ratio tolerance, while the current channel implements automatic gain control - together achieving <1 mV voltage error and <1 mA current resolution from -40°C to +125°C.
Is CY8C4147LCE-HV403 qualified for functional safety in ASIL-B systems?
Yes. The device is developed per ISO 26262-10:2018E Clause 9, meeting all process requirements for ASIL C and hardware architectural metrics for ASIL B. This includes SECDED ECC on all safety-critical memories, MPU-enforced isolation, windowed WDT, and redundant analog measurement paths.
CY8C4147LCE-HV403 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- PSOC™
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- FIFO, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 8
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 2x16/20b Sigma-Delta
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4147LCE-HV403 FAQ
1.How can I place an order for CY8C4147LCE-HV403 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4147LCE-HV403 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 CY8C4147LCE-HV403 reliable?
The price and inventory of CY8C4147LCE-HV403 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4147LCE-HV403 is usually 5 days.
3.What payment methods are accepted for CY8C4147LCE-HV403?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4147LCE-HV403 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4147LCE-HV403?
CY8C4147LCE-HV403 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4147LCE-HV403 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 CY8C4147LCE-HV403?
For technical support, including CY8C4147LCE-HV403 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4147LCE-HV403 requirements.
6.How does Aetrix verify that CY8C4147LCE-HV403 is sourced from the original manufacturer or authorized distributors?
All CY8C4147LCE-HV403 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 CY8C4147LCE-HV403 meets industry standards.
7.What is the process for return or replacement of CY8C4147LCE-HV403?
All CY8C4147LCE-HV403 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4147LCE-HV403, 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 CY8C4147LCE-HV403 part is unused and in its original packaging.
Return procedure for CY8C4147LCE-HV403:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4147LCE-HV403 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
