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LM25066PSQE bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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LM25066PSQE bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 63 page OUT UVLO/EN VIN GATE DIODE R1 FB OVLO SDA SCL PGD SENSE VDD SMBus Interface SMBA CL RETRY VAUX VDD VREF TIMER PWR LM25066/I Auxillary ADC Input (0V " 1.16V) VOUT COUT 10k Ÿ VIN 1 PF 1 PF RPWR ADR2 ADR1 ADR0 GND RSNS R2 R3 CTIMER RFB1 RFB2 CIN Z1 Q2 Q1 D1 1k Ÿ Cdv/dt Only required when using dv/dt start-up Q3 R4 D2 Only required when FET Vgs rating is < +/-20V D3 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM25066 SNVS654J – FEBRUARY 2010 – REVISED DECEMBER 2015 LM25066 System Power Management and Protection IC With PMBus™ 1 Features 2 Applications 1 • Input Voltage Range: 2.9 V to 17 V • Server Backplane Systems • I2C/SMBus Interface and PMBus™ Compliant • Basestation Power Distribution Systems Command Structure • Solid-State Circuit Breaker • Programmable 25-mV or 46-mV Current Limit 3 Description Threshold The LM25066 combines a high-performance hot- • Configurable Circuit Breaker Protection for Hard swap controller with a PMBus™ compliant SMBus/I2C Shorts interface to accurately measure, protect and control • Configurable Undervoltage and Overvoltage the electrical operating conditions of computing and Lockouts With Hysteresis storage blades connected to a backplane power bus. • Remote Temperature Sensing With The LM25066 continuously supplies real-time power, Programmable Warning and Shutdown voltage, current, temperature and fault data to the system management host via the SMBus interface. Thresholds • Detection and Notification of Damaged MOSFET The LM25066 control block includes a unique hot- Condition swap architecture that provides current and power limiting to protect sensitive circuitry during insertion of • Real-Time Monitoring of VIN, VOUT, IIN, PIN, VAUX boards into a live system backplane, or any other hot With 12-bit Resolution and 1-kHz Sampling Rate power source. A fast acting circuit breaker prevents • Current Measurement Accuracy: ±2.4% Over damage in the event of a short circuit on the output. Temperature The input undervoltage and overvoltage levels and • Power Measurement Accuracy: ±3% Over hysteresis are configurable, as well as the insertion delay time and fault detection time. A temperature Temperature monitoring block on the LM25066 interfaces with a • True Input Power Measurement Using low-cost external diode for monitoring the Simultaneous Sampling of VIN and IIN Accurately temperature of the external MOSFET or other Averages Dynamic Power Readings thermally sensitive components. The POWER GOOD • Averaging of VIN, IIN, PIN, and VOUT Over output provides a fast indicator when the input and/or Programmable Interval Ranging from 0.001 to output voltages are outside their programmed range. 4 Seconds LM25066 current measurement accuracy is ±2.4% over temperature. • Programmable WARN and FAULT Thresholds With SMBA Notification Device Information(1) • Blackbox Capture of Telemetry Measurements PART NUMBER PACKAGE BODY SIZE (NOM) and Device Status Triggered by WARN or FAULT LN25066 WQFN (24) 5.00 mm × 4.00 mm Condition (1) For all available packages, see the orderable addendum at • Full-Featured Application Design and the end of the data sheet. Development GUI • 24-Lead WQFN Package Typical Application Schematic 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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