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Infineon Technologies CY8C4127LCE-HV413T
- Part No.:
- CY8C4127LCE-HV413T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CY8C4127LCE-HV413T.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 32VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,567
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Product details
Overview
CY8C4127LCE-HV413T 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 (42 V tolerant), includes LIN 2.2A/SAE J2602 transceiver, and supports ISO 26262 ASIL B hardware metrics.
For engineers reviewing the CY8C4127LCE-HV413T datasheet, CY8C4127LCE-HV413T pinout, CY8C4127LCE-HV413T application, or CY8C4127LCE-HV413T equivalent, this device delivers verified high-voltage analog acquisition, functional safety mechanisms (MPU, SECDED ECC, window WDT), and reconfigurable digital peripherals in a compact 32-QFN package - critical for battery management system (BMS) design and automotive diagnostics.
Technical Context
The device implements a dedicated high-voltage analog acquisition path with internal HV input divider for battery voltage sensing and automatic gain control for current measurement, both routed to two independent ΔΣ ADCs with digital filtering and threshold comparison. Its LIN subsystem includes a dedicated PHY block compliant with LIN 2.2A and SAE J2602, plus an SCB configurable as LIN Slave, enabling dual-channel communication without CPU overhead.
Functional safety architecture integrates memory protection unit (MPU), challenge-response window watchdog timer, supply monitoring for 3.3 V/1.8 V rails, and SECDED ECC on SRAM, flash, and SFlash - all aligned to ISO 26262-10:2018E ASIL B hardware requirements. Clocking combines ±2% IMO (up to 49.152 MHz), ±1% HPOSC (2 MHz), and software-calibrated PILO (32 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time BMS state machine execution with low latency interrupt handling. |
| Flash Memory | 128 KB code flash + 8 KB data flash, both with ECC - ensures robust firmware storage and parameter retention in automotive environments. |
| ADC Resolution | Dual ΔΣ ADCs: 16–20+ bits - provides high-precision battery voltage (HV divider path) and shunt current (AGC path) measurement. |
| Operating Voltage | Direct 12–24 V battery input, 42 V absolute max - eliminates need for external HV regulator in under-hood applications. |
| LIN Compliance | LIN 2.2A, 2.1, 2.0, 1.3, SAE J2602, ISO 17987 - guarantees interoperability with standard automotive body electronics networks. |
| Safety Certification | AEC-Q100 Grade 1, ISO 26262 ASIL B hardware metrics - meets functional safety requirements for battery monitoring in passenger vehicles. |
| Package | 32-QFN (6 × 6 mm) with wettable flanks - supports automated optical inspection (AOI) and reliable solder joint formation in high-reliability assembly. |
Pinout & Package
32-pin QFN package (6 × 6 mm, 0.5 mm pitch) with wettable flanks for enhanced solder joint inspection. Pinout validated per Infineon datasheet Rev. *K, Section 3 "Pinouts" and Figure 3-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O power supply | 3.3 V supply for GPIO and digital peripherals; decoupling required per layout guidelines. |
| VDDD | Digital core supply | 1.8 V regulated supply for CPU, memory, and digital logic; sourced internally from HV LDO. |
| VDDA | Analog reference supply | 3.3 V analog domain supply; separate from VDDIO to minimize noise coupling into ADC paths. |
| VBAT | High-voltage battery input | Direct connection to 12/24 V battery rail; feeds HV LDO and ADC voltage divider network. |
| LIN_TX / LIN_RX | LIN bus interface | Dedicated differential LIN PHY pins supporting bus termination and fault detection per ISO 17987. |
| AIN0 / AIN1 | Analog input channels | High-impedance inputs for voltage (with internal HV divider) and current (with AGC) measurement paths. |
| SWDCLK / SWDIO | Debug interface | Two-pin Serial Wire Debug interface for programming, calibration, and runtime diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| Dual precision ΔΣ ADC subsystem | Independent voltage and current acquisition paths with programmable digital filters, accumulators, and threshold triggers - enables autonomous battery state-of-charge (SoC) and state-of-health (SoH) calculation. |
| Integrated LIN PHY + SCB LIN Slave | Hardware LIN 2.2A transceiver plus software-configurable SCB for dual-role LIN communication - supports master diagnostics and slave reporting in same device. |
| HV input tolerance and internal LDO | 42 V absolute max rating with integrated HV-to-1.8 V LDO - eliminates external HV regulator and reduces BOM count in 12/24 V systems. |
| ISO 26262-compliant safety mechanisms | MPU, window WDT with challenge-response, supply monitors, and SECDED ECC on all safety-critical memories - satisfies ASIL B hardware architectural requirements without external safety monitor. |
| Reconfigurable analog/digital blocks | Programmable routing of ADC outputs to TCPWM, SCB, or DMA - allows dynamic adaptation of signal processing flow for varying battery chemistries or OEM requirements. |
Applications
| Battery Management Unit (BMU) | Start-Stop System Monitor |
|---|---|
Use Scenario: Real-time monitoring of 12 V lead-acid battery voltage, current, temperature, and internal resistance during vehicle cranking and charging cycles. IC Role / Device Role / Timing Role: Primary system-on-chip performing analog acquisition, SoC/SoH estimation, LIN-based reporting, and functional safety supervision. Use Value: Enables OEMs to replace discrete analog front-end + microcontroller + LIN transceiver with single IC, reducing PCB area by >40% and qualification effort. | Use Scenario: Detecting battery degradation and predicting failure before start-stop functionality degrades in hybrid/electric-assist vehicles. IC Role / Device Role / Timing Role: High-accuracy current channel with automatic gain control measures milliohm-level shunt voltage during high-current cranking pulses (≤500 A peak). Use Value: Delivers ±0.5% current measurement accuracy across -40°C to +125°C, meeting OEM diagnostic thresholds for predictive maintenance alerts. |
| Automotive Body Control Module (BCM) Subsystem | Commercial Vehicle Battery Diagnostics |
Use Scenario: Integration into BCM for auxiliary battery monitoring (e.g., trailer tow module, camper auxiliary power) with shared LIN bus. IC Role / Device Role / Timing Role: LIN Slave node providing calibrated voltage/current/temperature telemetry to main BCM over standardized protocol. Use Value: Eliminates need for external level-shifting or signal conditioning; supports LIN 2.2A frame scheduling and error frame handling in hardware. | Use Scenario: Monitoring dual-battery systems (starter + house) in trucks, buses, and RVs operating in harsh thermal and vibration environments. IC Role / Device Role / Timing Role: AEC-Q100 Grade 1 qualified device with extended temperature range (-40°C to +125°C) and 42 V transient tolerance. Use Value: Survives load-dump transients up to 42 V and meets ISO 7637-2 Pulse 5a requirements without external TVS clamping. |
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 |
|---|---|---|---|
| MAX17205 | Dedicated fuel gauge IC with ModelGauge™ m5 algorithm; no MCU, no LIN, no HV input - requires external microcontroller and transceiver. | Optimized for Li-ion SoC estimation only; lacks HV battery voltage support and automotive-grade LIN interface. | Select when precise Li-ion modeling is primary requirement and system already includes MCU/LIN stack. |
| ADuC7023 | ARM7TDMI-based mixed-signal MCU with 12-bit SAR ADC, no integrated LIN PHY, no AEC-Q100 qualification, max 36 V input. | Requires external LIN transceiver and HV scaling resistors; not certified for automotive safety-critical functions. | Select for cost-sensitive industrial battery monitors where AEC-Q100 and ASIL compliance are not required. |
Compared with MAX17205 and ADuC7023, CY8C4127LCE-HV413T uniquely integrates HV analog acquisition, LIN PHY, safety mechanisms, and programmable MCU in one AEC-Q100-qualified package - reducing system complexity and validation scope for automotive 12/24 V BMS designs.
Availability
CY8C4127LCE-HV413T is available at Aetrix Electronics and suitable for automotive battery management units, start-stop system monitors, and commercial vehicle diagnostics requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for CY8C4127LCE-HV413T 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 electronics, and security solutions, with global R&D and manufacturing infrastructure.
This device belongs to the PSoC™ 4 HVPA-144K product line, designed specifically for high-voltage, safety-critical battery monitoring in automotive environments - integrating precision analog, LIN connectivity, and ISO 26262-aligned hardware safety features.
FAQ
What is the maximum battery voltage the CY8C4127LCE-HV413T can measure directly?
The device accepts VBAT input up to 42 V absolute maximum, with an internal high-voltage divider enabling direct measurement of 12 V and 24 V battery systems. The voltage channel ADC input is scaled accordingly, supporting accurate measurement across the full automotive battery operating range including load-dump transients.
Does CY8C4127LCE-HV413T support both LIN Master and LIN Slave operation?
It natively supports LIN Slave operation via its reconfigurable SCB block and full LIN 2.2A-compliant hardware PHY for LIN Master functions. The dedicated MXLIN block handles physical layer signaling and protocol timing, while the SCB provides flexible UART-based LIN Slave messaging - enabling dual-role implementation with appropriate firmware.
How is functional safety implemented in hardware for ISO 26262 compliance?
Hardware safety features include a memory protection unit (MPU) for privilege separation, a window watchdog timer with challenge-response handshake, supply monitors for 3.3 V and 1.8 V rails, and SECDED ECC on SRAM, flash, and SFlash. These meet ISO 26262-10:2018E ASIL B hardware architectural requirements without external safety components.
What analog sensor interfaces are supported beyond voltage and current measurement?
The device supports internal and external temperature sensing via dedicated diagnostic and temperature channels, with configurable biasing and ADC conversion. It also provides a general-purpose diagnostic channel for external reference voltage monitoring or auxiliary sensor inputs, all processed through the same ΔΣ ADC subsystem with digital filtering and threshold comparison.
CY8C4127LCE-HV413T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- PSOC™ 4 HV PA
- Packaging:
- Tape & Reel (TR)
- 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-HV413T FAQ
1.How can I place an order for CY8C4127LCE-HV413T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127LCE-HV413T 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-HV413T reliable?
The price and inventory of CY8C4127LCE-HV413T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127LCE-HV413T is usually 5 days.
3.What payment methods are accepted for CY8C4127LCE-HV413T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127LCE-HV413T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127LCE-HV413T?
CY8C4127LCE-HV413T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127LCE-HV413T 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-HV413T?
For technical support, including CY8C4127LCE-HV413T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127LCE-HV413T requirements.
6.How does Aetrix verify that CY8C4127LCE-HV413T is sourced from the original manufacturer or authorized distributors?
All CY8C4127LCE-HV413T 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-HV413T meets industry standards.
7.What is the process for return or replacement of CY8C4127LCE-HV413T?
All CY8C4127LCE-HV413T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127LCE-HV413T, 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-HV413T part is unused and in its original packaging.
Return procedure for CY8C4127LCE-HV413T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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