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MAX8725ETI+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX8725ETI+

Manufacturer: MAXIM, MAXIN

Multichemistry Battery Chargers with Automatic System Power Selector

Partnumber Manufacturer Quantity Availability
MAX8725ETI+,MAX8725ETI MAXIM, MAXIN 9003 In Stock

Description and Introduction

Multichemistry Battery Chargers with Automatic System Power Selector The **MAX8725ETI+** is a power management IC manufactured by **MAXIM Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** MAXIM Integrated  
- **Package:** 28-TQFN (5x5mm)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 4.5V to 24V  
- **Output Voltage Range:** Adjustable  
- **Output Current:** Up to 20A (with external MOSFETs)  
- **Switching Frequency:** Adjustable (300kHz to 1MHz)  
- **Efficiency:** Up to 95%  
- **Features:** Synchronous Buck Controller, Programmable Soft-Start, Overcurrent & Overtemperature Protection  

### **Descriptions:**  
The **MAX8725ETI+** is a high-efficiency, synchronous buck controller designed for high-current applications. It supports wide input voltage ranges and provides precise output voltage regulation. The IC integrates protection features such as overcurrent, overtemperature, and undervoltage lockout (UVLO).  

### **Features:**  
- **Synchronous Buck Controller:** Reduces power loss with synchronous rectification.  
- **Adjustable Output Voltage:** Configurable via external resistors.  
- **Programmable Soft-Start:** Prevents inrush current at startup.  
- **Wide Input Range:** 4.5V to 24V for versatile applications.  
- **High Efficiency:** Up to 95% with synchronous operation.  
- **Protection Features:** Overcurrent, overtemperature, and UVLO.  
- **Adjustable Switching Frequency:** 300kHz to 1MHz for optimization.  

This IC is commonly used in **industrial, telecom, and computing power systems** requiring high-current DC-DC conversion.  

*(Note: For detailed application circuits, refer to the official datasheet.)*

Application Scenarios & Design Considerations

Multichemistry Battery Chargers with Automatic System Power Selector

Alternative Part Number

  • BQ24725ARGRR --: Multi-cell battery charger controller with SMBus interface, functionally similar to the MAX8725 in notebook charging applications and widely available.
  • ISL88731CHRTZ --: SMBus battery charger IC for multi-cell Li-ion packs, comparable feature set and pin-compatible class to the MAX8725.
  • LTC4100EGN#PBF --: SMBus smart battery charger controller supporting multi-chemistry packs, a strong alternative when the MAX8725 is unavailable.
  • BQ24707RGER --: Multi-chemistry battery charger controller with SMBus control, functionally similar to the MAX8725 for notebook charging applications.
  • ISL6251AHRZ --: Highly integrated multi-chemistry battery charger IC for notebooks, comparable feature set and pin-compatible class.
  • LTC4100EGN --: SMBus smart battery charger controller offering similar charging control functions as a cross-vendor alternative.

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