Overview
The LM25066IAPSQ/NOPB, produced by Texas Instruments, is a high-performance hot-swap controller designed to accurately measure, control, and protect the electrical operating conditions of critical systems. This device combines a PMBus 1.2 compliant SMBus/I2C interface with advanced features for real-time monitoring and protection. It is fully compliant with Intel Node Manager 2.0 and 2.5, and includes the READ_EIN energy accumulator feature for precise power measurements.
The LM25066IAPSQ/NOPB is particularly suited for applications in base station-networking line cards, servers, and other high-reliability systems where robust power management is essential. It features a unique hot-swap architecture, configurable circuit breaker protection, and real-time monitoring of voltage, current, power, and temperature.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| FET | External | Vin (min) (V) | 2.9 |
| Vin (max) (V) | 17 | Vabsmax_cont (V) | 24 |
| Current limit (min) (A) | 0.01 | Current limit (max) (A) | 500 |
| Overcurrent response | Circuit breaker, current limiting | Fault response | Auto-retry, Latch-off |
| Soft start | Adjustable | Overvoltage response | Cut-off |
| Features | Current monitoring, Fault output, PMBus, Power good signal | Rating | Catalog |
| Device type | eFuses and hot swap controllers | Operating temperature range (°C) | -40 to 125 |
| Function | Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection, Thermal shutdown |
Key Features
- Faster Time-To-Event and improved power conversion efficiency
- Precision current control and rapid fault detection
- Efficient system monitoring with real-time data on voltage, current, power, and temperature
- Simplified error handling with configurable WARN and FAULT thresholds and SMBA notification
- Black box function for capturing telemetry data and device status during warnings or faults
- Compliance with PMBus 1.2 and Intel Node Manager 2.0 and 2.5
- Programmable 25mV or 46mV current limit threshold and configurable circuit breaker protection
- Configurable under- and over-voltage lockouts with hysteresis
- POWER GOOD output for swift notification of voltage anomalies
Applications
The LM25066IAPSQ/NOPB is ideal for use in various high-reliability systems, including:
- Base station-networking line cards
- Servers and data center equipment
- Telecommunication systems
- Industrial control systems
- Other critical systems requiring robust power management and monitoring
Q & A
- What is the input voltage range of the LM25066IAPSQ/NOPB?
The input voltage range is from 2.9V to 17V.
- What is the operating temperature range of the LM25066IAPSQ/NOPB?
The operating temperature range is from -40°C to 125°C.
- What type of interface does the LM25066IAPSQ/NOPB use?
The device uses a PMBus 1.2 compliant SMBus/I2C interface.
- What is the purpose of the READ_EIN command?
The READ_EIN command accurately measures true input power via simultaneous sampling.
- What protection features does the LM25066IAPSQ/NOPB offer?
The device offers overcurrent protection, overvoltage protection, short circuit protection, and thermal shutdown.
- How does the black box function work?
The black box function captures and stores telemetry data and device status in the event of a warning or a fault.
- What is the current measurement accuracy of the LM25066IAPSQ/NOPB?
The current measurement accuracy is ±1% over temperature.
- Can the circuit breaker protection be configured?
Yes, the circuit breaker protection is configurable for hard shorts.
- What is the purpose of the POWER GOOD output?
The POWER GOOD output provides a fast alert when the input and/or output voltages are outside their programmed range.
- Is the LM25066IAPSQ/NOPB compliant with any specific standards?
Yes, it is fully compliant with Intel Node Manager 2.0 and 2.5.
