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MAX5921BESA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX5921BESA+

Manufacturer: MAXIM

-48V Hot-Swap Controllers with External RSENSE and High Gate Pulldown Current

Partnumber Manufacturer Quantity Availability
MAX5921BESA+,MAX5921BESA MAXIM 2400 In Stock

Description and Introduction

-48V Hot-Swap Controllers with External RSENSE and High Gate Pulldown Current The **MAX5921BESA+** is a power management IC manufactured by **MAXIM** (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** MAXIM (Analog Devices)  
- **Package:** 8-SOIC (150mil)  
- **Type:** Hot Swap Controller  
- **Operating Voltage Range:** 9V to 80V  
- **Current Limit:** Adjustable  
- **Fault Protection:** Overcurrent, Undervoltage Lockout (UVLO)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Internal MOSFET:** No (Requires External FET)  

### **Descriptions:**  
The **MAX5921BESA+** is a high-voltage hot swap controller designed for applications requiring safe insertion and removal of circuit boards in live backplanes. It provides inrush current control, fault protection, and power management for systems operating in harsh environments.  

### **Features:**  
- **Wide Input Voltage Range (9V to 80V)** – Suitable for high-voltage applications.  
- **Adjustable Current Limit** – Allows customization for different load conditions.  
- **Fast Overcurrent Protection** – Shuts down the external MOSFET in case of a fault.  
- **Undervoltage Lockout (UVLO)** – Prevents operation below the minimum voltage threshold.  
- **Programmable Fault Timer** – Configurable response time for fault conditions.  
- **Low Quiescent Current** – Optimized for power efficiency.  
- **SOIC-8 Package** – Compact and suitable for space-constrained designs.  

This IC is commonly used in telecom, industrial, and networking equipment where reliable hot swap functionality is required.

Application Scenarios & Design Considerations

-48V Hot-Swap Controllers with External RSENSE and High Gate Pulldown Current
Partnumber Manufacturer Quantity Availability
MAX5921BESA+,MAX5921BESA MAX 30 In Stock

Description and Introduction

-48V Hot-Swap Controllers with External RSENSE and High Gate Pulldown Current The MAX5921BESA+ is a power-over-Ethernet (PoE) interface controller manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (Analog Devices)  
- **Package:** 8-pin SOIC  
- **Operating Voltage Range:** 36V to 57V (IEEE 802.3af compliant)  
- **Detection Voltage:** 2.7V to 10V  
- **Classification Current:** Programmable per IEEE 802.3af  
- **Power Dissipation:** Low power dissipation in PD (Powered Device) mode  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The MAX5921BESA+ is a PD controller designed for IEEE 802.3af-compliant PoE applications. It integrates detection, classification, and undervoltage lockout (UVLO) functions to ensure safe power delivery to connected devices.  

### **Features:**  
- IEEE 802.3af compliant  
- Integrated detection and classification  
- Programmable classification current  
- Low power dissipation  
- Thermal shutdown protection  
- Wide input voltage range (36V to 57V)  
- 8-pin SOIC package for compact designs  

This IC is commonly used in PoE-powered devices such as IP phones, wireless access points, and security cameras.

Application Scenarios & Design Considerations

-48V Hot-Swap Controllers with External RSENSE and High Gate Pulldown Current

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