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Infineon Technologies CY8C4127LCE-HV413
- Part No.:
- CY8C4127LCE-HV413
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CY8C4127LCE-HV413.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 32VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,781
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Product details
Overview
CY8C4127LCE-HV413 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), operates directly from 12–24 V battery (42 V tolerant), includes LIN 2.2A transceiver, and delivers ASIL B hardware compliance per ISO 26262.
For engineers reviewing the CY8C4127LCE-HV413 datasheet, CY8C4127LCE-HV413 pinout, CY8C4127LCE-HV413 application, or CY8C4127LCE-HV413 equivalent, this device supports battery voltage/current sensing with automatic gain control, LIN-based communication in harsh automotive environments, and functional safety-critical firmware execution with ECC-protected memory and MPU-enforced isolation.
Technical Context
The device integrates a 48-MHz Arm® Cortex®-M0+ CPU with DMA, 128 KB flash (ECC), 8 KB SRAM (ECC), and supervisory flash. Its analog subsystem uses two independent ΔΣ ADCs-one with programmable PGA for current sensing, one with HV input divider for battery voltage-with digital filtering and threshold-triggered interrupts.
The high-voltage subsystem includes dedicated HV I/O pads, internal LDOs, supply monitors for 3.3 V and 1.8 V rails, and a LIN PHY compliant with LIN 2.2A, SAE J2602, and ISO 17987. Clocking combines ±2% IMO, ±1% HPOSC, and software-calibrated PILO for timing accuracy across operating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, up to 48 MHz - enables real-time battery state estimation and LIN protocol stack execution |
| Flash Memory | 128 KB code flash + 8 KB data flash, both with SECDED ECC - ensures firmware integrity and parameter storage reliability in automotive environments |
| Analog ADCs | Dual ΔΣ ADCs: 16–20+ bits resolution, one with auto-gain current channel, one with HV divider voltage channel - supports precise Coulomb counting and open-circuit voltage tracking |
| LIN Compliance | LIN 2.2A, 2.1, 2.0, 1.3, SAE J2602, ISO 17987 - enables direct integration into vehicle body control modules without external transceiver |
| Supply Tolerance | Operates from 12–24 V battery, withstands up to 42 V transient - eliminates need for external HV protection circuitry in starter-battery systems |
| Safety Certification | AEC-Q100 Grade 1, ISO 26262 ASIL B hardware metrics, ASIL C process compliance - satisfies functional safety requirements for battery management in ASIL-B systems |
| Package | 32-QFN (6 × 6 mm) with wettable flanks - supports automated optical inspection (AOI) and reliable reflow soldering in automotive PCB assembly |
Pinout & Package
32-pin QFN package (6 × 6 mm, 0.5 mm pitch) with wettable flanks, optimized for automotive thermal and mechanical reliability. Pinout validated per Infineon datasheet Rev. *K, page 32.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O power supply | 3.3 V supply for GPIO and digital peripherals; decoupling required for LIN noise immunity |
| VDDD | Digital core supply | 1.8 V regulated supply for CPU and memory subsystem; monitored for brownout detection |
| VDDA | Analog reference supply | 3.3 V supply for precision ADCs and analog mux; isolated to minimize digital switching noise |
| HV_IN | High-voltage battery input | Direct connection to 12/24 V battery rail; feeds internal HV divider for voltage channel ADC |
| LIN_TX/RX | LIN bus interface | Integrated LIN transceiver pins; support wake-up, sleep, and fault reporting per LIN spec |
| ADC_I_P/N | Current-sensing differential input | Connects to shunt resistor; auto-gain configuration enables µA-to-A range measurement |
| TEMP_SENSE | Temperature sensor input | Supports internal diode or external NTC; used for battery thermal derating and health estimation |
| SWD_CLK/DIO | Debug interface | Two-pin SWD for programming and real-time debugging without halting safety-critical tasks |
Key Features
| Feature | Design Value |
|---|---|
| Dual ΔΣ ADC with sequencer | Simultaneous voltage, current, temperature, and diagnostic channel acquisition with configurable sample rate and digital post-processing |
| Integrated LIN transceiver | Eliminates external transceiver IC, reduces BOM count and PCB area while maintaining full LIN protocol compliance and ESD robustness |
| Hardware ECC on all memories | SECDED error correction on flash and SRAM prevents silent data corruption during radiation exposure or voltage droop events |
| MPU and window WDT | Memory Protection Unit enforces privilege separation between safety and non-safety firmware; window watchdog prevents lockup in LIN interrupt handlers |
| High-voltage input tolerance | Internal HV pads and LDOs enable direct battery connection without external level-shifting or overvoltage clamping components |
Applications
| Battery Management Unit (BMU) | Start-Stop System Controller |
|---|---|
Use Scenario: Monitoring 12 V lead-acid battery state-of-charge, health, and load current in premium passenger vehicles. IC Role / Device Role / Timing Role: Primary system-on-chip performing real-time ADC sampling, LIN communication with ECU, and safety-critical state machine execution. Use Value: Enables accurate SoC estimation via dual ΔΣ ADCs with auto-gain current sensing and HV voltage divider, reducing reliance on lookup tables and improving cold-cranking prediction. | Use Scenario: Managing battery charge/discharge cycles during engine start-stop events in hybridized ICE platforms. IC Role / Device Role / Timing Role: High-voltage analog front-end and LIN node coordinating with BCM and alternator control module. Use Value: Direct 24 V operation and ASIL B-compliant architecture allow safe, deterministic response to rapid voltage transients during cranking and alternator load dump. |
| Commercial Vehicle Battery Monitor | Off-Highway Equipment Power Supervisor |
Use Scenario: Remote telemetry of battery voltage, temperature, and discharge history in Class 8 trucks with extended idle periods. IC Role / Device Role / Timing Role: Standalone LIN slave node collecting analog data and transmitting alerts via LIN frame scheduling. Use Value: Integrated LIN PHY and low-power deep-sleep mode (<10 µA) extend battery life during weeks-long parking intervals without compromising diagnostic readiness. | Use Scenario: Supervising auxiliary battery banks in construction equipment exposed to wide ambient temperature swings and vibration. IC Role / Device Role / Timing Role: Safety-certified analog monitor interfacing with ruggedized sensors and reporting faults over LIN to main controller. Use Value: On-chip temperature sensing redundancy and analog path diagnostics ensure reliable operation at –40 °C to +125 °C junction temperature, meeting EN 13309 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage battery monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17853 | Dedicated 12-cell battery monitor ASIC with daisy-chain interface; no embedded MCU or LIN transceiver | Requires external microcontroller for LIN protocol handling and state logic; suited for multi-cell Li-ion packs, not single 12 V lead-acid | Select when cell-level balancing and high-channel-count voltage monitoring are required, not integrated system control |
| STM32G474RET6 | General-purpose Cortex-M4 MCU with 12-bit ADC and no integrated LIN PHY or HV analog front-end | Needs external LIN transceiver, HV signal conditioning, and additional safety certification effort for ASIL-B deployment | Select when flexible peripheral mix and floating-point math are prioritized over out-of-box battery monitoring functionality |
Compared with MAX17853 and STM32G474RET6, CY8C4127LCE-HV413 uniquely integrates HV analog sensing, LIN PHY, and ASIL-B-compliant safety architecture in a single die-reducing system BOM, validation effort, and PCB footprint for 12/24 V lead-acid battery monitoring.
Availability
CY8C4127LCE-HV413 is available at Aetrix Electronics and suitable for battery management units, start-stop controllers, commercial vehicle telemetry systems, and off-highway power supervisors requiring stable component supply and automotive-grade lifecycle assurance.
Supply support for CY8C4127LCE-HV413 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
CY8C4127LCE-HV413 belongs to the PSoC™ 4 HVPA-144K product line, designed specifically for high-voltage, safety-critical battery monitoring in automotive 12/24 V systems - integrating precision analog, LIN connectivity, and ISO 26262-aligned hardware features.
FAQ
What is the maximum battery voltage the CY8C4127LCE-HV413 can directly monitor?
The device tolerates up to 42 V on its HV_IN pin and operates from 12–24 V nominal battery rails. Its internal high-voltage input divider scales battery voltage for the precision ADC, enabling direct monitoring without external resistive networks or level shifters. Absolute maximum rating is 42 V sustained, with transient overvoltage capability defined per AEC-Q100 stress testing.
Does CY8C4127LCE-HV413 support LIN sleep/wake functionality?
Yes - the integrated LIN transceiver fully supports LIN 2.2A sleep mode, local wake-up via bus activity, and remote wake-up via dominant timeout. The device can enter deep-sleep with <10 µA current draw while retaining LIN bus monitoring capability, and wake within 100 µs to respond to master requests or diagnostic triggers.
How is functional safety implemented in the analog subsystem?
Functional safety in the analog path includes redundant voltage reference generation, dual-path temperature sensing (internal diode + external NTC), cross-checked current and voltage measurements, and built-in self-test sequences triggered by the PACSS sequencer. All analog diagnostic results feed into the safety monitor block for ASIL-B-compliant fault reporting.
Can the dual ΔΣ ADCs operate simultaneously without CPU intervention?
Yes - the Precision Analog Channel Subsystem (PACSS) includes a hardware sequencer that autonomously controls sampling order, gain selection, and digital filtering across all four channels (voltage, current, temperature, diagnostic). ADC results are stored in dedicated RAM buffers and trigger DMA transfers or interrupts, minimizing CPU load during continuous monitoring.
CY8C4127LCE-HV413 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- PSOC™ 4 HV PA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 24.576MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, Temp Sensor, WDT
- Number of I/O:
- 9
- 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):
- 3V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4127LCE-HV413 FAQ
1.How can I place an order for CY8C4127LCE-HV413 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127LCE-HV413 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 CY8C4127LCE-HV413 reliable?
The price and inventory of CY8C4127LCE-HV413 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127LCE-HV413 is usually 5 days.
3.What payment methods are accepted for CY8C4127LCE-HV413?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127LCE-HV413 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127LCE-HV413?
CY8C4127LCE-HV413 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127LCE-HV413 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 CY8C4127LCE-HV413?
For technical support, including CY8C4127LCE-HV413 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127LCE-HV413 requirements.
6.How does Aetrix verify that CY8C4127LCE-HV413 is sourced from the original manufacturer or authorized distributors?
All CY8C4127LCE-HV413 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 CY8C4127LCE-HV413 meets industry standards.
7.What is the process for return or replacement of CY8C4127LCE-HV413?
All CY8C4127LCE-HV413 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127LCE-HV413, 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 CY8C4127LCE-HV413 part is unused and in its original packaging.
Return procedure for CY8C4127LCE-HV413:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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