MP8110 Precision High-Side Current-Sense Amplifier The Future of Analog IC Technology DESCRIPTION FEATURES The MP8110 is a low-cost, precision, high-side Low-Cost, Compact Current-Sense Solution current-sense amplifier. This device operates 12A Typical Supply Current from a single 2.5V to 40V supply and typically 2.5V to 40V Operating Supply Voltage consumes 12A. It is ideal for todays notebook 1.4V to 40V Input Common Mode Range computers, cell phones and other systems 3A Typical Shutdown Current where battery/DC current monitoring is critical. 400V Input Offset Voltage High Current Sensing Capability High-side current monitoring is especially useful in battery-powered systems since it does not Integrated Buffer Amplifier interfere with the ground path of the battery Available in 8-Pin SOIC and MSOP packages, charger. The input common-mode range of APPLICATIONS 1.4V to 40V is independent of the supply voltage and ensures that the current-sense Portable PCs feedback remains viable even when connected PDAs to a 2-cell battery pack in deep discharge. Smart Battery Packs Cell Phones This device is available in 8-pin SOIC and Portable Test/Measurement Systems MSOP packages. Battery-Operated Systems Energy Management Systems MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION V IN + 10uF C I 5 LOAD 0.1uF RG1 RG2 VCC MP8110 ON OFF SHDN OUT2 SHUTDOWN GND OUT1 C OUT Opt. C GS 100pF MP8110 Rev. 0.9 www.MonolithicPower.com 1 9/21/2007 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2007 MPS. All Rights Reserved. MP8110 PRECISION HIGH-SIDE CURRENT-SENSE AMPLIFIER PACKAGE REFERENCE TOP VIEW TOP VIEW SHDN 1 8 OUT2 SHDN 1 8 OUT2 NC 2 7 VCC NC 2 7 VCC RG1 3 6 RG2 RG1 3 6 RG2 GND 4 5 OUT1 GND 4 5 OUT1 Part Number* Package Temperature Part Number* Package Temperature MP8110DS SOIC8 MP8110DK MSOP8 40 C to +85C 40 C to +85C For Tape & Reel, add suffix Z (eg. MP8110DKZ) For Tape & Reel, add suffix Z (eg. MP8110DSZ) * * For RoHS Compliant Packaging, add suffix LF For RoHS Compliant Packaging, add suffix LF (eg. MP8110DSLFZ) (eg. MP8110DKLFZ) (1) (3) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC VCC, RG1, RG2 to GND..............0.3V to +42V SOIC8..................................... 90...... 42... C/W Max Differential Input Voltage, RG1 to RG2..... 5V MSOP8 .................................. 150..... 65... C/W Max Junction Temperature (T) ................150C j Continuous Power Dissipation Storage Temperature ............. 65C to +150C (T =70C) ...............................................800mW A (2) Recommended Operating Conditions Notes: 1) Exceeding these ratings may damage the device. V , RG1, RG2 to GND ...................2.5V to 40V CC 2) The device is not guaranteed to function outside of its Operating Ambient Temperature40C to +85C operating conditions. 3) Measured on approximately 1 square of 1 oz copper. ELECTRICAL CHARACTERISTICS V = 24V, V = 0V, T = +25 C, unless otherwise noted. CC SHDN A Parameter Symbol Conditions Min Typ Max Units Supply Voltage V 2.5 40 V CC Supply Current I I = 0A, V = 40V 12 30 A CC LOAD CC Common Mode Input Voltage V V > VLow 1.4 V IN CM CC IN V > VHigh 40 CC IN OUT1 Input Offset Voltage V 0.4 2 mV OS1 OUT2 Input Offset Voltage V 1 5 mV OS2 (4) Input Bias Current I , I 4 20 nA RG1 RG2 OUT1 Current Accuracy I /I V = 100mV 2 5 % RG1 GS SENSE No-Load OUT1 Error V = 0V 0.1 1 A SENSE Low-Level OUT1 Error V = 5mV 0.3 2 A SENSE No-Load OUT2 Error V = 0V 0.01 1 A SENSE Low-Level OUT2 Error V = 5mV 0.05 2 A SENSE 2.5V < V < 40V, CC Power Supply Rejection Ratio PSRR 70 97 dB V = 100mV SENSE Shutdown Supply Current I V = 3V 3 6 A CC(SHDN) SHDN MP8110 Rev. 0.9 www.MonolithicPower.com 2 9/21/2007 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2007 MPS. All Rights Reserved.