Overview
The MAX17616A, produced by Analog Devices Inc./Maxim Integrated, is a robust and feature-rich current limiter designed to provide comprehensive protection and monitoring for power systems. This device is part of the MAX17616/MAX17616A family, which offers a wide range of functionalities to enhance system reliability and performance. The MAX17616A is particularly suited for applications requiring high current handling, precise current limiting, and advanced protection features.
Key Specifications
| Specification | Value | Notes |
|---|---|---|
| Input Supply Range (without Reverse Current Protection) | +3V to +80V | |
| Input Supply Range (with Reverse Current Protection) | +3V to +75V | |
| Programmable Current Limit | 3A to 7A (±3% accurate), 2A to 3A (±4% accurate), 0.7A to 2A (±7% accurate) | Across full temperature range |
| Internal nFET RON | 20mΩ (typical) | |
| Reverse Current Protection Response Time | 100ns (fast response) | Dual stage with external nFET |
| Overvoltage Surge Protection | Programmable (MAX17616A) | |
| PMBus Interface | Available | For real-time monitoring and control |
| Current Monitoring Accuracy | ±2% (3A to 7A, up to +85°C) | |
| Startup Inrush Current Limit | Programmable | |
| Short Term Over Current Limit and Time | Programmable | |
| Current Limit Fault Response | Continuous, Autoretry, Latch-off Modes | |
| Logic Level Enable Input (EN) | Available | |
| Power Good Output (PGOOD) | Available | |
| Junction Temperature Monitoring (TJ) | Available |
Key Features
Robust Protection: The MAX17616A offers comprehensive protection features including input-voltage reverse-polarity protection, dual-stage reverse current protection, loss of ground protection, and programmable overvoltage surge protection.
Wide Input Supply Range: Supports a wide input supply range from +3V to +80V without reverse current protection and up to +75V with reverse current protection.
Precise Current Limiting: Programmable current limit between 3A to 7A with ±3% accuracy across the full temperature range.
PMBus Interface: Enables real-time operating conditions monitoring, voltage and current readout, fault registry access, and device ON/OFF control.
Flexible Design: Allows for adjustable UVLO and OVLO/OVFB thresholds, startup inrush current limit, and short-term overcurrent limit and time selection.
Thermal Management: Includes junction temperature monitoring and thermal foldback current limit.
Applications
The MAX17616A is suitable for various applications requiring advanced power management and protection, such as:
- Data Centers and Cloud Infrastructure: For high-reliability power distribution and protection.
- Industrial Automation: To ensure robust power delivery and monitoring in industrial environments.
- Telecommunications: For reliable power management in telecom equipment.
- Medical Devices: To provide precise and protected power supply in medical equipment.
- Automotive Systems: For advanced power management and protection in automotive applications.
Q & A
- Q: What is the input supply range of the MAX17616A?
A: The input supply range is from +3V to +80V without reverse current protection and up to +75V with reverse current protection.
- Q: What are the programmable current limit ranges of the MAX17616A?
A: The programmable current limit ranges are 3A to 7A (±3% accurate), 2A to 3A (±4% accurate), and 0.7A to 2A (±7% accurate) across the full temperature range.
- Q: Does the MAX17616A have PMBus interface capabilities?
A: Yes, the MAX17616A features a PMBus interface for real-time monitoring and control.
- Q: What types of protection does the MAX17616A offer?
A: The MAX17616A offers input-voltage reverse-polarity protection, dual-stage reverse current protection, loss of ground protection, and programmable overvoltage surge protection.
- Q: Can the startup inrush current limit be programmed on the MAX17616A?
A: Yes, the startup inrush current limit is programmable.
- Q: How does the MAX17616A handle thermal management?
A: The MAX17616A includes junction temperature monitoring and thermal foldback current limit for thermal management.
- Q: What is the response time for reverse current protection on the MAX17616A?
A: The response time for reverse current protection is 100ns.
- Q: Does the MAX17616A support power good output (PGOOD)?
A: Yes, the MAX17616A supports power good output (PGOOD).
- Q: Can the current limit fault response be configured on the MAX17616A?
A: Yes, the current limit fault response can be set to continuous, autoretry, or latch-off modes.
- Q: Is the MAX17616A suitable for automotive applications?
A: Yes, the MAX17616A is suitable for advanced power management and protection in automotive applications.
