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LMP8480MME-T Datasheet(PDF) 1 Page - Texas Instruments |
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LMP8480MME-T Datasheet(HTML) 1 Page - Texas Instruments |
1 / 29 page Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMP8480, LMP8481 SNVS829C – MARCH 1999 – REVISED SEPTEMBER 2015 LMP848x Precision 76-V High-Side Current Sense Amplifiers With Voltage Output 1 Features 3 Description The LMP8480 and LMP8481 are precision high-side 1 • Typical Values, TA = 25°C current sense amplifiers that amplify a small • Bidirectional or Unidirectional Sensing differential voltage developed across a current sense • Common Mode Voltage Range 4.0 V to 76 V resistor in the presence of high input common-mode voltages. These amplifiers are designed for • Supply Voltage Range 4.5 V to 76 V bidirectional (LMP8481) or unidirectional (LMP8480) • Fixed Gains 20, 60 and 100 V/V current applications and will accept input signals with • Gain Accuracy ±0.1% common-mode voltage range from 4 V to 76 V with a bandwidth of 270 kHz. Since the operating power • Offset ±80 µV supply range overlaps the input common-mode • Bandwidth (–3dB) 270 kHz voltage range, the LMP848x can be powered by the • Quiescent Current < 100 µA same voltage that is being monitored. This benefit • Buffered High-Current Output > 5 mA eliminates the need for an intermediate supply voltage to be routed to the point of load where the • Input Bias Current 7 µA current is being monitored, resulting in reduced • PSRR (DC) 122 dB component count and board space. • CMRR (DC) 124 dB The LMP848x family consists of fixed gains of 20, 60 • Temperature Range –40°C to 125°C and 100 for applications that demand high accuracy • 8-Pin VSSOP Package over temperature. The low-input offset voltage allows the use of smaller sense resistors without sacrificing 2 Applications system error. The wide operating temperature range of –40°C to 125°C makes the LMP848x an ideal • High-Side Current Sense choice for automotive, telecommunications, industrial, • Vehicle Current Measurement and consumer applications. The LMP8480 and LMP8481 are pin-for-pin replacements for the • Telecommunications MAX4080 and MAX4081, offering improved offset • Motor Controls voltage, wider reference adjust range and higher • Laser or LED Drivers output drive capabilities. The LMP8480 and LMP8481 • Energy Management are available in a 8-pin VSSOP package. • Solar Panel Monitoring Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) Typical Application Schematic LMP8480 VSSOP (8) 3.00 mm x 3.00 mm LMP8481 VSSOP (8) 3.00 mm x 3.00 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. 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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA. |
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