Infineon Technologies CY8C4147LCE-HV413

Overview

CY8C4147LCE-HV413 from Infineon is a 32-bit Arm® Cortex®-M0+ programmable system-on-chip (PSoC™ 4 HVPA-144K) designed for lead-acid battery monitoring and management. It integrates dual precision ΔΣ ADCs (16–20+ bits), high-voltage analog input dividers, an integrated LIN transceiver compliant with LIN 2.2A/SAE J2602/ISO 17987, operates directly from 12-V/24-V battery (up to 42 V), and supports ASIL B hardware metrics per ISO 26262.

For engineers reviewing the CY8C4147LCE-HV413 datasheet, CY8C4147LCE-HV413 pinout, CY8C4147LCE-HV413 application, or CY8C4147LCE-HV413 equivalent, key selection criteria include HV analog channel accuracy (±0.5% full-scale for voltage, ±1.5% for current), LIN protocol compliance, functional safety architecture (MPU, SECDED ECC on SRAM/flash), and automotive qualification (AEC-Q100 Grade 1).

Technical Context

The device implements a dedicated high-voltage subsystem with integrated 12-V-tolerant analog front-end, including programmable voltage divider for battery sensing and automatic gain control for current measurement. Its dual ΔΣ ADCs operate with digital filtering, accumulators, and threshold comparisons-enabling simultaneous voltage, current, temperature, and diagnostic channel acquisition without external signal conditioning.

Functional safety is embedded at silicon level: memory protection unit (MPU), window watchdog timer with challenge-response, supply monitors for 3.3-V/1.8-V rails, and analog diagnostics including redundant voltage/current/temperature paths and backup reference voltage. Clocking includes ±2% IMO (up to 49.152 MHz), ±1% HPOSC (2 MHz), and software-calibrated PILO (32 kHz).

Key Specifications

Pinout & Package

32-QFN package with wettable flanks (6 × 6 mm), optimized for automotive thermal and mechanical reliability. Pin count: 32 total terminals, including 9 GPIOs, dedicated LIN TX/RX, HV analog inputs (VSENSE, ISENSE), reference and diagnostic pins, and power/ground connections.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar battery monitoring applications.

Compared with MAX17205 and STM32G071RBT6, CY8C4147LCE-HV413 uniquely combines automotive-qualified HV analog sensing, integrated LIN, and functional safety features in a single die - reducing system-level validation effort and enabling faster time-to-certification for battery management applications.

Availability

CY8C4147LCE-HV413 is available at Aetrix Electronics and suitable for battery management systems, start-stop vehicle monitoring, and commercial vehicle diagnostics requiring stable component supply and automotive-grade lifecycle support.

Supply support for CY8C4147LCE-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 microcontrollers, and security solutions, with global R&D and manufacturing infrastructure.

CY8C4147LCE-HV413 belongs to the PSoC™ 4 HVPA product line, engineered specifically for high-voltage battery monitoring in automotive and industrial applications - integrating precision analog, functional safety, and LIN connectivity into a single programmable SoC.

FAQ

What is the maximum operating voltage on the VBAT pin?

The VBAT pin supports absolute maximum ratings up to 42 V DC, with guaranteed operation from 6 V to 36 V in automotive battery monitoring applications. This allows direct connection to 12-V and 24-V lead-acid battery systems without external regulation or clamping circuitry.

Does CY8C4147LCE-HV413 require external crystal for LIN communication?

No. The device uses its internal ±1% high-precision oscillator (HPOSC) at 2 MHz to generate LIN baud rates with sufficient accuracy to meet LIN 2.2A timing tolerances. No external crystal or resonator is needed for LIN compliance.

How many independent analog measurement channels does it support simultaneously?

CY8C4147LCE-HV413 supports four concurrent analog measurement channels: battery voltage (via VSENSE), shunt current (via ISENSE), internal/external temperature, and diagnostic reference - all acquired through two ΔΣ ADCs with sequenced sampling and digital post-processing.

Is SWD debug supported in all power modes?

SWD debug is fully operational in Active and Sleep modes. In DeepSleep mode, debug access is disabled by default but can be enabled via configuration bit in SFlash; however, waking the device for debug requires XRES assertion or specific wakeup event - consistent with automotive security requirements.