Overview
The LM25066IAPSQX/NOPB, produced by Texas Instruments, is a versatile and reliable hot swap controller designed for systems requiring precise power monitoring and control. This device combines a high-performance hot-swap controller with an I2C/SMBus interface and PMBus compliant command structure. It is particularly suited for computing and storage blades connected to a backplane power bus, providing real-time power, voltage, current, and temperature data to the system management host. The LM25066IAPSQX/NOPB features a comprehensive range of functionalities including current and power limiting, fault detection, and protection mechanisms, making it an essential component for optimizing system performance and reliability.
Key Specifications
| 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 |
| Device type | eFuses and hot swap controllers |
| Operating temperature range (°C) | -40 to 125 |
| Package/Case | WQFN-24 |
Key Features
- Input Voltage Range: 2.9 V to 17 V
- I2C/SMBus Interface and PMBus Compliant Command Structure
- Programmable 25-mV or 46-mV Current Limit Threshold
- Configurable Circuit Breaker Protection for Hard Shorts
- Configurable Undervoltage and Overvoltage Lockouts With Hysteresis
- Remote Temperature Sensing With Programmable Warning and Shutdown Thresholds
- Detection and Notification of Damaged MOSFET Condition
- Real-Time Monitoring of VIN, VOUT, IIN, PIN, VAUX With 12-Bit Resolution and 1 kHz Sampling Rate
- Current Measurement Accuracy: ±1% Over Temperature
- Power Measurement Accuracy: ±2% Over Temperature
- True Input Power Measurement Using Simultaneous Sampling of VIN and IIN
- Averaging of VIN, IIN, PIN, and VOUT Over Programmable Interval Ranging from 0.001 to 4 Seconds
- Programmable WARN and FAULT Thresholds with SMBA Notification
- Black Box Capture of Telemetry Measurements and Device Status Triggered by WARN or FAULT Condition
Applications
The LM25066IAPSQX/NOPB is designed for various applications that require precise power management and monitoring, including:
- Computing and storage blades connected to a backplane power bus
- Data centers and cloud-based infrastructure
- High-density server systems
- Telecommunication equipment
- Industrial control systems requiring robust power management
Q & A
- What is the input voltage range of the LM25066IAPSQX/NOPB?
The input voltage range is from 2.9 V to 17 V. - What interface does the LM25066IAPSQX/NOPB use for communication?
The device uses an I2C/SMBus interface and is PMBus compliant. - What is the current measurement accuracy of the LM25066IAPSQX/NOPB?
The current measurement accuracy is ±1% over temperature. - Does the LM25066IAPSQX/NOPB support remote temperature sensing?
Yes, it supports remote temperature sensing with programmable warning and shutdown thresholds. - How does the LM25066IAPSQX/NOPB handle overcurrent conditions?
The device handles overcurrent conditions through a circuit breaker and current limiting mechanisms. - What is the operating temperature range of the LM25066IAPSQX/NOPB?
The operating temperature range is from -40°C to 125°C. - Does the LM25066IAPSQX/NOPB have a black box capture feature?
Yes, it captures telemetry measurements and device status triggered by WARN or FAULT conditions. - What is the package type of the LM25066IAPSQX/NOPB?
The device is packaged in a 24-lead WQFN package. - Is the LM25066IAPSQX/NOPB compliant with Intel Node Manager?
Yes, it is fully compliant with Intel Node Manager 2.0 and 2.5. - Can the LM25066IAPSQX/NOPB average power measurements over a programmable interval?
Yes, it can average VIN, IIN, PIN, and VOUT over a programmable interval ranging from 0.001 to 4 seconds.
