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MAX1737EEI+ from MAIXM

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MAX1737EEI+

Manufacturer: MAIXM

Stand-Alone Switch-Mode Lithium-Ion Battery-Charger Controller

Partnumber Manufacturer Quantity Availability
MAX1737EEI+ MAIXM 2500 In Stock

Description and Introduction

Stand-Alone Switch-Mode Lithium-Ion Battery-Charger Controller The MAX1737EEI+ is a lithium-ion (Li+) battery charger controller manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Battery Voltage Range:** 3V to 4.2V (adjustable)  
- **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 MAX1737EEI+ is a high-efficiency switch-mode battery charger controller designed for single-cell Li+ batteries. It features a constant-current/constant-voltage (CC/CV) charging algorithm with programmable charge current and termination voltage.  

### **Features:**  
- **Adjustable Charge Current & Voltage**  
- **Thermal Regulation for Safe Charging**  
- **Automatic Recharge Function**  
- **Charge Status Outputs**  
- **Low-Dropout Linear Regulator for System Power**  
- **Reverse Battery Protection**  
- **Soft-Start for Inrush Current Limiting**  

This device is commonly used in portable electronics, power tools, and other battery-powered applications.  

(Source: Maxim Integrated datasheet)

Application Scenarios & Design Considerations

Stand-Alone Switch-Mode Lithium-Ion Battery-Charger Controller
Partnumber Manufacturer Quantity Availability
MAX1737EEI+,MAX1737EEI MAX 20 In Stock

Description and Introduction

Stand-Alone Switch-Mode Lithium-Ion Battery-Charger Controller The MAX1737EEI+ is a battery charge controller manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX1737EEI+  
- **Package:** 28-pin QSOP (QSOP-28)  
- **Input Voltage Range:** 4.5V to 28V  
- **Charge Voltage Range:** Adjustable (up to 4.2V per cell)  
- **Charge Current:** Programmable up to 4A  
- **Operating Temperature Range:** -40°C to +85°C  
- **Control Method:** Switching regulator (PWM)  
- **Battery Chemistry Support:** Lithium-Ion (Li+)  
- **Charge Termination:** Voltage-based (with optional timer)  

### **Descriptions:**  
The MAX1737EEI+ is a high-efficiency, switch-mode battery charger designed for single-cell or multi-cell Li+ battery packs. It integrates a PWM controller, MOSFET drivers, and charge termination logic, providing a complete charging solution with minimal external components.  

### **Features:**  
- **High-Efficiency Switching Charger:** Reduces power dissipation.  
- **Programmable Charge Current:** Up to 4A with external sense resistor.  
- **Precision Charge Voltage Regulation:** ±0.75% accuracy.  
- **Automatic Recharge:** Initiates charging if battery voltage drops.  
- **Charge Status Outputs:** Indicates charging, fault, and completion.  
- **Thermal Regulation:** Prevents overheating.  
- **Input Overvoltage Protection (OVP):** Safeguards against high input voltage.  
- **Battery Detection:** Ensures safe charging only when a battery is present.  

For detailed application notes and schematics, refer to the official datasheet from Maxim Integrated (Analog Devices).

Application Scenarios & Design Considerations

Stand-Alone Switch-Mode Lithium-Ion Battery-Charger Controller

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