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MAX1813EEI from MAX,MAXIM - Dallas Semiconductor

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MAX1813EEI

Manufacturer: MAX

Dynamically-Adjustable / Synchronous Step-Down Controller with Integrated Voltage Positioning

Partnumber Manufacturer Quantity Availability
MAX1813EEI MAX 50 In Stock

Description and Introduction

Dynamically-Adjustable / Synchronous Step-Down Controller with Integrated Voltage Positioning The MAX1813EEI is a battery-charging controller IC manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Manufacturer:**  
Maxim Integrated  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Battery Voltage Range:** 3.5V to 18V  
- **Charging Current:** Programmable up to 4A  
- **Charging Accuracy:** ±0.5%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin QSOP (EEI)  

### **Descriptions:**  
The MAX1813EEI is a high-efficiency, switch-mode battery charger controller designed for single-cell or multi-cell Li-ion/Li-polymer batteries. It supports constant-current (CC) and constant-voltage (CV) charging modes and includes thermal regulation to prevent overheating.  

### **Features:**  
- **Programmable Charge Current:** Adjustable via an external resistor.  
- **Wide Input Voltage Range:** Supports various power sources, including AC adapters and USB.  
- **Thermal Regulation:** Reduces charge current if temperature exceeds safe limits.  
- **Charge Termination:** Automatically stops charging when the battery reaches full capacity.  
- **Reverse Battery Protection:** Safeguards against incorrect battery connections.  
- **Low Dropout Operation:** Efficient charging even with small input-output differentials.  
- **Status Indicators:** Provides LED or logic outputs for charge status.  

This information is based solely on the manufacturer's datasheet for the MAX1813EEI.

Application Scenarios & Design Considerations

Dynamically-Adjustable / Synchronous Step-Down Controller with Integrated Voltage Positioning

Alternative Part Number

  • LTC4054LES5-4.2 --: Single-cell Li-Ion linear battery charger in a small SOT-23 package, functionally similar to the MAX1813 charger family and widely available as a drop-in style alternative.
  • BQ24040DSQR --: Compact Li-Ion/Li-Polymer linear charger with similar charge-current and termination features, commonly used as a cross for MAX1813 battery charger designs.
  • MCP73831T-2ACI/OT --: Popular single-cell Li-Ion charge management controller with programmable current and small footprint, suitable as a functional replacement for MAX1813 in portable applications.

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