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MAX155AEWI+ from MAXIM/DALLAS,MAXIM - Dallas Semiconductor

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MAX155AEWI+

Manufacturer: MAXIM/DALLAS

High-Speed, 8-Channel, 8-Bit ADC with Simultaneous Track/Holds and Reference

Partnumber Manufacturer Quantity Availability
MAX155AEWI+,MAX155AEWI MAXIM/DALLAS 4 In Stock

Description and Introduction

High-Speed, 8-Channel, 8-Bit ADC with Simultaneous Track/Holds and Reference The **MAX155AEWI+** is a dual-input, linear battery charger IC manufactured by **Maxim Integrated (now part of Analog Devices)**. Below are its key specifications, descriptions, and features based on factual data:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated / Dallas Semiconductor  
- **Package:** 28-pin Wide SOIC (SO)  
- **Input Voltage Range:** 4.5V to 28V (USB or DC input)  
- **Charge Voltage:** 4.2V ±0.5% (for single-cell Li-ion/Li-polymer)  
- **Charge Current:** Programmable up to 1.5A  
- **Operating Temperature Range:** -40°C to +85°C  
- **Control Interface:** Standalone (no microcontroller required)  

### **Descriptions:**  
- The **MAX155AEWI+** is a dual-input (USB and AC adapter) Li-ion/Li-polymer battery charger.  
- It automatically selects the appropriate power source (USB or DC input) for charging.  
- Includes thermal regulation to prevent overheating.  
- Supports **preconditioning, fast-charge, and top-off charge** modes.  

### **Features:**  
- **Dual-Input Charging:** Supports USB (100mA/500mA) and DC adapter inputs.  
- **Programmable Charge Current:** Adjustable via an external resistor.  
- **Thermal Regulation:** Reduces charge current if temperature exceeds safe limits.  
- **Charge Status Outputs:** Open-drain outputs for indicating charging (CHG) and power-good (POK).  
- **Automatic Power Source Selection:** Prioritizes DC adapter input when available.  
- **Low Battery Preconditioning:** Trickle charges deeply discharged batteries.  
- **Battery Detection:** Only starts charging when a valid battery is connected.  

This information is sourced from the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

High-Speed, 8-Channel, 8-Bit ADC with Simultaneous Track/Holds and Reference

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