Battery Fuel Gauge IC Lithium Ion/Polymer 24-TQFN (4x4) The MAX17320G20+ is a high-accuracy, ultra-low-power fuel gauge and battery protector IC designed for 2-cell to 4-cell lithium-ion and lithium-polymer battery packs. The device integrates Maxim Integrated’s ModelGauge™ m5 EZ algorithm to provide precise battery state-of-charge estimation without requiring battery relearning after system resets or battery replacement. It is optimized for portable, wearable, industrial, and IoT battery-powered applications where accurate battery monitoring and robust protection are required. The device combines fuel gauging, battery authentication support, autonomous battery protection, current sensing, and voltage monitoring into a single integrated solution. It includes configurable protection features such as overvoltage, undervoltage, overcurrent, short-circuit, and thermal protection, helping improve system safety and battery reliability. The MAX17320G20+ communicates through an I²C-compatible interface and supports low-power operation for extended battery runtime. Features High-accuracy battery fuel gauge for multi-cell lithium-ion batteries Supports 2-cell to 4-cell battery pack configurations Integrated ModelGauge m5 EZ algorithm with no battery relearning required Integrated battery protector with autonomous safety monitoring Supports overvoltage, undervoltage, overcurrent, short-circuit, and thermal protection Integrated current-sense amplifier for accurate current measurement Low quiescent current optimized for portable and always-on systems I²C-compatible communication interface Configurable alert and interrupt functions Battery aging compensation and cycle tracking Supports battery authentication functionality Integrated ADCs for voltage, current, and temperature monitoring Programmable protection thresholds and timing parameters Low-power hibernate and sleep operating modes Electrical Characteristics Designed for lithium-ion and lithium-polymer battery chemistries Supports battery stack voltages corresponding to 2S to 4S configurations High-resolution voltage, current, temperature, and capacity measurements Low operating current suitable for battery-powered systems Integrated precision coulomb counter Wide operating temperature range suitable for industrial applications Protection Functions Cell overvoltage protection Cell undervoltage protection Charge overcurrent protection Discharge overcurrent protection Short-circuit protection Overtemperature and undertemperature protection Permanent failure detection and fault logging Autonomous FET control for pack isolation Interface and Control I²C serial communication interface Programmable registers for protection and fuel gauge configuration Interrupt and alert outputs for fault and status indication Supports host processor communication and diagnostics Nonvolatile memory for configuration storage Package Information Package type is TQFN Compact surface-mount package suitable for space-constrained designs RoHS compliant and lead-free package option Typical Applications Smart battery packs Portable medical devices Industrial handheld equipment IoT and wireless sensor devices Battery-powered consumer electronics Portable test and measurement systems Rechargeable multi-cell battery systems #commonpartslibrary #integratedcircuit #powermanagement #batterymanagement

Authentication Chip 8-UDFN (2x3) The ATECC608B-MAHDA-S is a secure authentication and cryptographic co-processor designed for hardware-based security, device authentication, encrypted communication, and secure key storage in embedded systems and IoT applications. The device integrates advanced cryptographic functionality with protected non-volatile memory to provide a secure root of trust for connected devices. The integrated security engine supports public key cryptography, secure boot validation, message authentication, key generation, digital signatures, and encrypted data exchange. The device is optimized for low-power embedded applications requiring protection against counterfeiting, unauthorized access, firmware tampering, and network-based attacks. The ATECC608B-MAHDA-S supports industry-standard cryptographic algorithms and secure provisioning workflows, enabling secure authentication in cloud-connected systems, industrial automation, consumer electronics, and automotive embedded platforms. The compact surface-mount package and low-power operation make the device suitable for highly integrated embedded designs where hardware security and identity protection are critical requirements. Key Features Hardware-based cryptographic security device Secure key storage and management Integrated authentication engine Public key cryptography support Secure boot and firmware validation capability Digital signature generation and verification Hardware random number generator Encrypted communication support Tamper-resistant key protection Secure provisioning and device identity management Low-power operation for embedded systems I2C serial communication interface Compact surface-mount package IoT and cloud authentication support Electrical Characteristics Secure non-volatile key storage architecture Low operating power consumption Hardware cryptographic acceleration Secure internal key isolation Fast authentication processing capability Wide operating voltage support Industrial temperature operation compatibility High-reliability embedded security implementation Applications IoT device authentication Secure embedded systems Cloud-connected devices Secure boot implementations Firmware integrity verification Industrial automation systems Smart home products Medical electronics Automotive embedded security Asset tracking and identification Anti-counterfeiting systems Encrypted communication platforms Package Information Package Type: SOIC Mounting Type: Surface Mount Compact embedded security package RoHS compliant configuration available #commonpartslibrary #integratedcircuit #securityic #cryptography #iotsecurity #embeddedhardware #authentication #secureboot #hardwaresecurity #encryptedcommunication