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LMP8603QMAX Datasheet(PDF) 1 Page - Texas Instruments |
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LMP8603QMAX Datasheet(HTML) 1 Page - Texas Instruments |
1 / 33 page Charger load + - +3.3V 24V 48V + - + - 48V Inductive Load Inductive Load +5V IC IL IB +5V S D G S D G LMP8602, LMP8602Q, LMP8603, LMP8603Q www.ti.com SNOSB36D – JULY 2009 – REVISED MARCH 2013 60V Common Mode, Fixed Gain, Bidirectional Precision Current Sensing Amplifier Check for Samples: LMP8602, LMP8602Q, LMP8603, LMP8603Q 1 FEATURES DESCRIPTION The LMP8602 and LMP8603 are fixed gain precision 2 • Unless Otherwise Noted, Typical Values at TA amplifiers. The parts will amplify and filter small = 25°C, VS = 5.0V, Gain = 50x (LMP8602), Gain differential signals in the presence of high common = 100x (LMP8603) mode voltages. The input common mode voltage • TCVos 10μV/°C max range is –22V to +60V when operating from a single 5V supply. With a 3.3V supply, the input common • CMRR 90 dB Min mode voltage range is from –4V to +27V. The • Input Offset Voltage 1 mV Max LMP8602 and LMP8603 are members of the Linear • CMVR at VS = 3.3V −4V to 27V Monolithic Precision (LMP®) family and are ideal • CMVR at VS = 5.0V −22V to 60V parts for unidirectional and bidirectional current sensing applications. All parameter values of the • Operating Ambient Temperature Range −40°C parts that are shown in the tables are 100% tested to 125°C and all bold values are also 100% tested over • Single Supply Bidirectional Operation temperature. • All Min / Max Limits 100% Tested The parts have a precise gain of 50x for the • LMP8602Q and LMP8603Q Available in LMP8602 and 100x for the LMP8603, which are Automotive AEC-Q100 Grade 1 Qualified adequate in most targeted applications to drive an Version ADC to its full scale value. The fixed gain is achieved in two separate stages, a preamplifier with a gain of 10x and an output stage buffer amplifier with a gain APPLICATIONS of 5x for the LMP8602 and 10x for the LMP8603. The • High Side and Low Side Driver Configuration connection between the two stages of the signal path Current Sensing is brought out on two pins to enable the possibility to • Bidirectional Current Measurement create an additional filter network around the output buffer amplifier. These pins can also be used for • Current Loop to Voltage Conversion alternative configurations with different gain as • Automotive Fuel Injection Control described in the applications section. • Transmission Control • Power Steering • Battery Management Systems Typical Applications 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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