LM25066APSQ/NOPB LM25066IAPSQX/NOPB LM25066IPSQX/NO Hot Swap Voltage Controllers System Power , Management Protection IC
microchip battery management
,power management integrated circuit
LM25066APSQ/NOPB LM25066IAPSQX/NOPB LM25066IPSQX/NO Hot Swap Voltage Controllers System Power , Management Protection IC
1 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
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Configurable Circuit Breaker Protection for Hard Shorts
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Configurable Undervoltage and Overvoltage Lockouts With Hysteresis
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Remote Temperature Sensing With Programmable Warning and Shutdown Thresholds
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Detection and Notification of Damaged MOSFET Condition
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Real Time Monitoring of VIN, VOUT, IIN, PIN, VAUX With 12-Bit Resolution and 1-kHz Sampling Rate
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Current Measurement Accuracy: ±1% Over Temperature
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Power Measurement Accuracy: ±2% Over Temperature
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True Input Power Measurement Using Simultaneous Sampling of VIN and IIN Accurately Averages Dynamic Power Readings
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Averaging of VIN, IIN, PIN, and VOUT Over Programmable Interval Ranging from 0.001 to 4 Seconds
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Programmable WARN and FAULT Thresholds with SMBA Notification
-
Black Box Capture of Telemetry Measurements and Device Status Triggered by WARN or FAULT Condition
2 Applications
• Server Backplane Systems
• Basestation Power Distribution Systems • Solid State Circuit Breakers
3 Description
The LM25066A combines a high-performance hot- swap controller with a PMBusTM compliant SMBus/I2C interface to accurately measure, protect and control the electrical operating conditions of computing and storage blades connected to a backplane power bus. The LM25066A continuously supplies real-time power, voltage, current, temperature and fault data to the system management host via the SMBus interface.
The LM25066A control block includes a unique hot- swap architecture that provides current and power limiting to protect sensitive circuitry during insertion of boards into a live system backplane, or any other hot power source. A fast acting circuit breaker prevents damage in the event of a short circuit on the output. The input undervoltage and overvoltage levels and hysteresis are configurable, as well as the insertion delay time and fault detection time. A temperature monitoring block on the LM25066A interfaces with a low-cost external diode for monitoring the temperature of the external MOSFET or other thermally sensitive components. The POWER GOOD output provides a fast indicator when the input and/or output voltages are outside their programmed range. LM25066A current measurement accuracy is ±1% over temperature.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
LN25066A |
WQFN (24) |
5.00 mm × 4.00 mm |
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