Overview
The MAX16543, part of the MAX165BCPN configuration, is an integrated protection IC designed for high-power 12V bus applications. It is typically used in conjunction with the MAX16545B or MAX16545C ICs to provide comprehensive protection and current sensing for loads exceeding 60A. This chipset offers a highly integrated solution with advanced features such as lossless current sensing, overcurrent protection, and overtemperature protection, making it ideal for high-reliability power supply systems.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 12-Lead QFN |
| Supply Voltage | 12V |
| Total Resistance (RDS(ON)) | 1.5mΩ (including package) |
| Current Sensing Accuracy | Lossless, precise total system current sensing |
| Overcurrent Protection (OCP) | Three levels: Programmable Moderate OCP, Programmable Severe OCP, Fail-Safe Safe OCP |
| Overtemperature Protection | Yes |
| Control and Reporting | PMBus/SMBus through MAX16545B/MAX16545C |
| DC Current Capability | Up to 120A with MAX16545B/MAX16545C + 2 MAX16543 |
Key Features
- High density design with industry’s smallest circuit breaker solution, providing over 75% board area savings.
- Integrated power MOSFET with low on-resistance.
- Lossless and precise total system current sensing and reporting.
- PMBus/SMBus control and reporting through the MAX16545B/MAX16545C.
- Three levels of overcurrent protection: programmable moderate, programmable severe, and fail-safe safe OCP.
- Fast fault detection and isolation, including VIN to VOUT short protection during startup.
- Overtemperature protection and local fast overcurrent protection.
- Modular design allowing for single or dual MAX16543 in parallel to increase DC current capabilities.
Applications
The MAX16543 is designed for use in various high-power applications, including:
- Servers and data centers.
- Networking equipment.
- Storage systems.
- Communication equipment.
Q & A
- What is the primary function of the MAX16543 IC?
The MAX16543 is an integrated protection IC that provides high accuracy current sensing and protection for loads on a 12V bus. - How does the MAX16543 work with the MAX16545B/MAX16545C?
The MAX16543 works in conjunction with the MAX16545B or MAX16545C to provide integrated protection and current sensing. The MAX16545B/MAX16545C controls the MAX16543 and reports the total system current. - What are the key protection features of the MAX16543?
The key protection features include overcurrent protection (three levels), overtemperature protection, and fast fault detection and isolation. - What is the maximum DC current capability of the MAX16543 when used with the MAX16545B/MAX16545C?
The maximum DC current capability is up to 120A when using the MAX16545B/MAX16545C with two MAX16543 ICs in parallel. - What communication protocols does the MAX16543 support?
The MAX16543 supports PMBus/SMBus control and reporting through the MAX16545B/MAX16545C. - What is the package type of the MAX16543?
The MAX16543 is available in a 12-Lead QFN package. - How does the MAX16543 contribute to board area savings?
The high density design of the MAX16543 provides over 75% board area savings compared to other solutions. - What are the typical applications of the MAX16543?
The MAX16543 is typically used in servers, networking equipment, storage systems, and communication equipment. - Does the MAX16543 have integrated power MOSFETs?
Yes, the MAX16543 includes an integrated power MOSFET with a low on-resistance of 1.5mΩ. - How does the MAX16543 handle overtemperature conditions?
The MAX16543 includes overtemperature protection features to ensure safe operation.
