32V, 2A Module (Power Module) Li-Ion/Polymer Battery Charger Features: Wide Input Voltage Range: 4.95V to 32V (40V Absolute Maximum) Float Voltage Options: 1-Cell: 4.1V, 4.2V 2-Cell: 8.2V, 8.4V Programmable Charge Current: Up to 2A User-Selectable Charge Termination: C/10 or Onboard Termination Timer Dynamic Charge Rate Programming/Soft-Start Pin Programmable Input Current Limit Optional Reverse Input Protection NTC Resistor Temperature Monitor 0.5% Float Voltage Accuracy Bad-Battery Detection with Auto-Reset Tiny, Low Profile (9mm × 15mm × 4.32mm) Surface Mount LGA Package

Cylindrical Battery Contacts, Clips, Holders & Springs SOLDER LUG BATTERY HOLDER 2/3A

USB Power Manager in ThinSOT Features: Manages Total Power Between a USB Peripheral and Battery Charger Minimal Voltage Drop (100mV at 500mA) Ultralow Battery Drain: 1µA Reverse Current Blocking Diode not Required Undervoltage Lockout Very Few External Components Compatible with Several LTC Linear Battery Chargers Overtemperature Protected Dual Battery Charge Priority Management Low Profile (1mm) SOT-23 Package

12 Channel Multicell Battery Monitor with Daisy Chain Interface, Generation 3 Features: Measures Up to 12 Battery Cells in Series Stackable Architecture Supports 100s of Cells Built-In isoSPI™ Interface: 1Mbps Isolated Serial Communications Uses a Single Twisted Pair, Up to 100 Meters Low EMI Susceptibility and Emissions 1.2mV Maximum Total Measurement Error 290μs to Measure All Cells in a SystemSynchronized Voltage and Current Measurement 16-Bit Delta-Sigma ADC with Frequency Programmable 3rd Order Noise Filter Engineered for ISO26262 Compliant Systems Passive Cell Balancing with Programmable Timer 5 General Purpose Digital I/O or Analog Inputs: Temperature or other Sensor Inputs Configurable as an I2C or SPI Master 4μA Sleep Mode Supply Current 48-Lead SSOP Package

36 Channel Fuel Cell Monitor Features:36 Measurement Channels Monitor up to 144 Fuel Cells in Series Channel Measurement Range: ±5V Cell Stack Voltage Range: –80V to 150V Operates from a Single 5V Supply Stackable Architecture Supports Large Fuel Cell Stacks Built-In isoSPI™ Interface 1MB/s Isolated Serial Communications Uses a Single Twisted Pair, Up to 100 Meters Low EMI Susceptibility and Emissions Bidirectional for Broken Wire Protection 15mV Total Measurement Error 6.75ms to Measure All Cells in a System Delta-Sigma Converter with Built-In Noise Filter Six General Purpose Digital I/O or Analog Inputs Temperature or Other Sensor Inputs 12μA Sleep Mode Supply Current 64-Lead LQFP Package AEC-Q100 Qualified for Automotive Applications

36 Channel Fuel Cell Monitor Features:36 Measurement Channels Monitor up to 144 Fuel Cells in Series Channel Measurement Range: ±5V Cell Stack Voltage Range: –80V to 150V Operates from a Single 5V Supply Stackable Architecture Supports Large Fuel Cell Stacks Built-In isoSPI™ Interface 1MB/s Isolated Serial Communications Uses a Single Twisted Pair, Up to 100 Meters Low EMI Susceptibility and Emissions Bidirectional for Broken Wire Protection 15mV Total Measurement Error 6.75ms to Measure All Cells in a System Delta-Sigma Converter with Built-In Noise Filter Six General Purpose Digital I/O or Analog Inputs Temperature or Other Sensor Inputs 12μA Sleep Mode Supply Current 64-Lead LQFP Package AEC-Q100 Qualified for Automotive Applications

Desktop AC Adapters 24V 60W Desktop Medical Adapter

The MAX745 provides all functions necessary for charging lithium-ion (Li+) battery packs. It provides a regulated charging current of up to 4A without getting hot, and a regulated voltage with only ±0.75% total error at the battery terminals. It uses low-cost, 1% resistors to set the output voltage, and a low-cost N-channel MOSFET as the power switch.The MAX745 regulates the voltage set point and charging current using two loops that work together to transition smoothly between voltage and current regulation. The per-cell battery voltage regulation limit is set between 4V and 4.4V using standard 1% resistors, and then the number of cells is set from 1 to 4 by pin-strapping. Total output voltage error is less than ±0.75%.For a similar device with an SMBus™ microcontroller interface and the ability to charge NiCd and NiMH cells, refer to the MAX1647 and MAX1648. For a low-cost Li+ charger using a linear-regulator control scheme, refer to the MAX846A.ApplicationsCell PhonesDesktop Cradle ChargersHandheld Instruments (PDAs, Palmtops)Li+ Battery PacksNotebook Computers

The MAX846A is a cost-saving multichemistry battery-charger system that comes in a space-saving 16-pin QSOP. This integrated system allows different battery chemistries (Li-Ion, NiMH or NiCd cells) to be charged using one circuit.In its simplest application, the MAX846A is a stand-alone, current-limited float voltage source that charges Li-Ion cells. It can also be paired up with a low-cost microcontroller (µC) to build a universal charger capable of charging Li-Ion, NiMH, and NiCd cells.An internal 0.5%-accurate reference allows safe charging of Li-Ion cells that require tight voltage accuracy. The voltage- and current-regulation loops used to control a low-cost external PNP transistor (or P-channel MOSFET) are independent of each other, allowing more flexibility in the charging algorithms.The MAX846A has a built-in 1%, 3.3V, 20mA linear regulator capable of powering the µC and providing a reference for the µC's analog-to-digital converters. An on-board reset notifies the controller upon any unexpected loss of power. The µC can be inexpensive, since its only functions are to monitor the voltage and current and to change the charging algorithms.ApplicationsCell PhonesDesktop Cradle ChargersHandheld Instruments (PDAs, Palmtops)Li+ Battery PacksLi+-Ion/NiMH/NiCd Multichemistry Battery ChargersNotebook Computers

Switching Power Supplies 51.38W 13.8V 3.5A 13.4V 0.23A