Specification	LM25056PSQ/NOPB

Current - Supply	1.7 mA
Measurement Error	0.5 %
Meter Type	Single Phase
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	24-WFQFN Exposed Pad
Supplier Device Package	24-WQFN (4x5)
Voltage - I/O High	2.1 V
Voltage - I/O Low	0.9 V
Voltage - Supply [Max]	17 V
Voltage - Supply [Min]	3 V

LM25056A Series

17-V PMBus Current/Voltage/Power/Temperature Monitor

Part	Current - Supply	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - I/O Low	Meter Type	Voltage - I/O High	Supplier Device Package	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case	Measurement Error	Mounting Type
Texas Instruments LM25056APSQ/NOPB	1.7 mA	125 °C	-40 °C	0.9 V	Single Phase	2.1 V	24-WQFN (4x5)	3 V	17 V	24-WFQFN Exposed Pad	0.5 %	Surface Mount
Texas Instruments LM25056PSQ/NOPB	1.7 mA	125 °C	-40 °C	0.9 V	Single Phase	2.1 V	24-WQFN (4x5)	3 V	17 V	24-WFQFN Exposed Pad	0.5 %	Surface Mount
Texas Instruments LM25056APSQE/NOPB	1.7 mA	125 °C	-40 °C	0.9 V	Single Phase	2.1 V	24-WQFN (4x5)	3 V	17 V	24-WFQFN Exposed Pad	0.5 %	Surface Mount
Texas Instruments LM25056PSQX/NOPB	1.7 mA	125 °C	-40 °C	0.9 V	Single Phase	2.1 V	24-WQFN (4x5)	3 V	17 V	24-WFQFN Exposed Pad	0.5 %	Surface Mount
Texas Instruments LM25056PSQE/NOPB	1.7 mA	125 °C	-40 °C	0.9 V	Single Phase	2.1 V	24-WQFN (4x5)	3 V	17 V	24-WFQFN Exposed Pad	0.5 %	Surface Mount

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Bulk	55	$ 5.46
	Tape & Reel (TR)	1000	$ 5.15
		2000	$ 4.96
Texas Instruments	LARGE T&R	1	$ 3.83
		100	$ 3.12
		250	$ 2.45
		1000	$ 2.08

Description

General part information

LM25056A Series

The LM25056A combines high performance analog and digital technology with a PMBus compliant SMBus/I2C interface to accurately measure the operating conditions of electrical systems including computing and storage blades connected to a backplane power bus. The LM25056A continuously supplies real-time power, voltage, current, and temperature data to the system management host via the SMBus interface.

The LM25056A monitoring block captures both real-time and average values of subsystem operating parameters (VIN, IIN, PIN, VAUX) as well as peak power. Accurate power measurement is accomplished by measuring the product of the input voltage and current through a shunt resistor. LM25056A current measurement has a ±0.5% accuracy over the temperature range of +10°C to +85°C with operation from -40°C to +125°C. A black box (Telemetry/Fault Snapshot) function captures and stores telemetry data and device status in the event of a warning or a fault.

Documents

Technical documentation and resources

System Power Measurement IC with PMBus datasheet (Rev. A)

Data sheet