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MAX1737EEI+ from MAIXM

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MAX1737EEI+

Manufacturer: MAIXM, MAX

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

Partnumber Manufacturer Quantity Availability
MAX1737EEI+ MAIXM, MAX 2520 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

Alternative Part Number

  • BQ24725ARGRR --: Multi-chemistry battery charger controller with similar SMBus-controlled charging function, widely available and well documented.
  • ISL6251AHRZ --: Notebook battery charger controller offering comparable charge voltage/current regulation and system power path management.
  • LTC4162IUFD --: Advanced buck battery charger with I2C telemetry, suitable as a functional upgrade for multi-cell battery charging designs.
  • ISL6251AHAZ --: Highly integrated multi-chemistry battery charger IC for notebook computers, comparable charge-control functionality and pin-compatible design intent.

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