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MAX846AEEE from MAX,MAXIM - Dallas Semiconductor

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MAX846AEEE

Manufacturer: MAX, MAXIM, MAXIM, MAXIN

Cost-Saving Multichemistry Battery-Charger System
Partnumber Manufacturer Quantity Availability
MAX846AEEE MAX, MAXIM, MAXIM, MAXIN 4241 In Stock

Description and Introduction

Cost-Saving Multichemistry Battery-Charger System The MAX846AEEE is a battery-charger controller IC manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Manufacturer:**  
- **MAX** (Maxim Integrated, now part of Analog Devices)  

### **Specifications:**  
- **Part Number:** MAX846AEEE  
- **Package:** 16-QSOP (EE)  
- **Input Voltage Range:** 4.5V to 28V  
- **Charge Current:** Programmable up to 4A  
- **Battery Chemistry Support:** Lithium-Ion (Li+), Nickel-Cadmium (NiCd), Nickel-Metal Hydride (NiMH)  
- **Charge Termination Methods:** Voltage (for Li+), Negative Delta Voltage (ΔV) (for NiMH/NiCd), Timer Backup  
- **Charge Voltage Accuracy:** ±0.5% (for Li+)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Integrated Features:** PWM Controller, Charge Current Sensing, Thermal Regulation  

### **Descriptions:**  
The MAX846AEEE is a versatile battery-charger controller designed for multiple battery chemistries, including Li+, NiMH, and NiCd. It provides a complete charging solution with programmable charge current, voltage regulation, and multiple termination methods. The IC includes a PWM controller for efficient power management and supports external MOSFETs for high-current applications.  

### **Features:**  
- **Multi-Chemistry Support:** Works with Li+, NiMH, and NiCd batteries.  
- **Programmable Charge Current:** Adjustable via an external resistor.  
- **Precision Voltage Regulation:** ±0.5% accuracy for Li+ batteries.  
- **Flexible Termination:** Voltage-based for Li+, ΔV detection for NiMH/NiCd, and timer backup.  
- **Thermal Regulation:** Prevents overheating by reducing charge current if needed.  
- **Wide Input Voltage Range:** 4.5V to 28V input compatibility.  
- **Low Dropout Operation:** Efficient charging even with small input-output differentials.  
- **External MOSFET Drive:** Supports high-current applications.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Cost-Saving Multichemistry Battery-Charger System

Alternative Part Number

  • BQ2000T --: Multi-chemistry battery charger controller with similar function to the MAX846A, widely available and well documented.
  • LTC1733 --: Standalone linear Li-Ion battery charger IC offering comparable charging control in a similar application space.
  • MCP73831 --: Compact single-cell Li-Ion/Li-Polymer charge management controller suitable as a functional substitute for small battery charging designs.
  • BQ2000TPW --: Multi-chemistry battery charger controller in a TSSOP package, functionally similar to the MAX846A for battery charging applications.
  • LTC4060 --: Standalone linear battery charger IC with comparable charge-control functionality and a different product family, making it a clear cross-reference.
  • LTC4060EFE --: Standalone linear battery charger controller with similar charge-management function, offered in a comparable small package.
  • MCP73864 --: Advanced single-cell Li-Ion charge management controller providing comparable charging control functionality as an alternative source.

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