LM25056APSQE/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
The LM25056APSQE/NOPB is a hot-swap voltage controller and system power measurement IC from Texas Instruments with PMBus interface, featuring an adjustable reset threshold at 2.4V in a 24-pin QFN package. It measures voltage, current, and power consumption while providing hot-plug control and fault protection for enterprise server and telecom equipment. Available in stock globally for power management and server slot protection applications.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 25
- Lifecycle
- ACTIVE
- Datasheet
- LM25056APSQE/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Hot-swap controller with integrated power measurement: voltage, current, and wattage monitoring via PMBus
- Adjustable undervoltage lockout threshold (reset at 2.4V) for flexible supply rail supervision
- PMBus digital interface enabling real-time telemetry to system management controllers or BMCs
- 24-pin QFN package (JESD-30 R-XQCC-N24) providing low thermal resistance for high-power slot designs
- Single-channel hot-swap and power management function in a compact no-lead SMT package
Applications
The LM25056APSQE/NOPB is used in server blade hot-swap power management, telecom line card insertion protection, and enterprise storage power monitoring systems. Its PMBus interface enables real-time power consumption reporting to system management controllers, making it ideal for intelligent power distribution units, UPS systems, and data center infrastructure with remote monitoring requirements.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | RESET THRESHOLD VOLTAGE IS 2.4 VOLT |
| Adjustable Threshold | YES |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-XQCC-N24 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | UNSPECIFIED |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 17V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Threshold Voltage-Nom | +2.4V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM25056APSQE/NOPB:
Frequently Asked Questions
What is the primary function of the LM25056APSQE/NOPB?
The LM25056APSQE/NOPB combines hot-swap power control with system power measurement in a single IC. It monitors and controls the inrush current during board insertion in live backplanes (hot-swap function) while simultaneously measuring supply voltage, load current, and power consumption via a PMBus digital interface, providing complete power telemetry for system management systems.
What is the adjustable reset threshold voltage of the LM25056APSQE/NOPB?
The LM25056APSQE/NOPB has an adjustable undervoltage lockout (UVLO) threshold with a reset voltage of 2.4V, which can be programmed using external resistors. This allows the designer to set the minimum operating voltage at which the hot-swap control circuit activates, preventing power-on of downstream loads until the supply rail has stabilized above the set threshold.
What communication interface does the LM25056APSQE/NOPB use for power data reporting?
The LM25056APSQE/NOPB uses the PMBus (Power Management Bus) protocol, a two-wire serial interface based on SMBus, for digital communication of power measurement data. Through PMBus commands, host systems can read back real-time voltage, current, and power readings, configure operating parameters, and read fault status registers, enabling comprehensive power monitoring in managed server and telecom infrastructure.
What package is the LM25056APSQE/NOPB available in?
The LM25056APSQE/NOPB is packaged in a 24-pin QFN (Quad Flat No-Lead) package, JESD-30 code R-XQCC-N24. The no-lead package provides a compact, thermally efficient footprint suitable for high-density power management PCBs in server blades and telecom equipment, and its exposed thermal pad facilitates effective heat dissipation to the PCB ground plane during high-current hot-swap operations.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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