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MAX9643 Dataheets PDF



Part Number MAX9643
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description 60V High-Speed Precision Current-Sense Amplifier
Datasheet MAX9643 DatasheetMAX9643 Datasheet (PDF)

www.DataSheet.co.kr 19-5889; Rev 0; 8/11 EVALUATION KIT AVAILABLE MAX9643 60V High-Speed Precision Current-Sense Amplifier General Description The MAX9643 is a high-speed 60V precision unidirectional current-sense amplifier ideal for a wide variety of power-supply control applications. Its high signal bandwidth allows its use within DC-DC switching converter power-supply control loops with minimal phase delay. The IC also features 50FV (max) precision input offset voltage, allowing small sense.

  MAX9643   MAX9643


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www.DataSheet.co.kr 19-5889; Rev 0; 8/11 EVALUATION KIT AVAILABLE MAX9643 60V High-Speed Precision Current-Sense Amplifier General Description The MAX9643 is a high-speed 60V precision unidirectional current-sense amplifier ideal for a wide variety of power-supply control applications. Its high signal bandwidth allows its use within DC-DC switching converter power-supply control loops with minimal phase delay. The IC also features 50FV (max) precision input offset voltage, allowing small sense resistors to be used in applications where efficiency is important and when wide dynamic-range current measurement is needed. High DC CMRR and AC CMRR make it easy to use in a wide variety of aggressive environments. The device is available in fixed gains of 2.5V/V and 10V/V. It is also available in a small, 8-pin TDFN (2mm x 3mm) package and is rated over the -40NC to +125NC temperature range. Benefits and Features S Supports High-Voltage Applications  Wide Input VCM = -1.5V to +60V S Delivers High-Speed Operation  15MHz Bandwidth S Increases System Accuracy  Precision VOS = 50µV (max) S -40NC to +125NC Specified Temperature Range Applications Industrial and Automotive Power Supplies GSM Base Station Power Supply High-Brightness LED Control Automotive Engine Control H-Bridge Motor Control Ordering Information appears at end of data sheet. For related parts and recommended products to use with this part, refer to www.maxim-ic.com/MAX9643.related. Typical Operating Circuit RS+ CP1 RS- CP2 VEE OUT VCC GND BOOST POWER-SUPPLY CONTROL LOAD MAX9643 ����������������������������������������������������������������� Maxim Integrated Products  1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr MAX9643 60V High-Speed Precision Current-Sense Amplifier ABSOLUTE MAXIMUM RATINGS RS+ to GND, RS- to GND (Note 1)........................-3.5V to +65V RS+ to RS-........................................................................... Q15V VCC to GND............................................................-0.3V to +40V VCC > 4.5V OUT to GND......................................................-0.3V to +4.5V VEE to GND.......................................................+0.3V to -4.5V CP1 to GND.......................................................-0.3V to +4.5V VCC ≤ 4.5V OUT to GND.......................................... -0.3V to (VCC + 0.3V) VEE to GND......................................... +0.3V to (-VCC + 0.3V) CP1 to GND........................................... -0.3V to (VCC + 0.3V) CP2 to GND .............................................. (VEE - 0.3V) to +0.3V Short-Circuit Duration.................................................Continuous Continuous Input Current into Any Pin............................. Q20mA ESD on RS+, RS-........................................................Q4kV HBM ESD on All Other Pins.................................................Q2kV HBM Maximum Power Dissipation TDFN-EP (derate 16.7mW/NC at +70NC).................1333.3mW Operating Temperature Range......................... -40NC to +125NC Junction Temperature......................................................+150NC Lead Temperature (10s, soldering).................................+300NC Soldering Temperature (reflow).......................................+260NC Note 1: Voltages below -3.5V are allowed, as long as the input current is limited to 5mA by an external resistor. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. PACKAGE THERMAL CHARACTERISTICS (Note 2) TDFN Junction-to-Ambient Thermal Resistance (BJA).......... 60NC/W Junction-to-Case Thermal Resistance (BJC)............... 11NC/W Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. ELECTRICAL CHARACTERISTICS (VCC = 5V, VRS+ = VRS- = 12V, TA = -40NC to +125NC, unless otherwise noted.) (Note 3) PARAMETER DC CHARACTERISTICS Input Common-Mode Voltage Range VCC R 5V, guaranteed by CMRR test, VSENSE P 100mV VCC < 5V, guaranteed by CMRR test, VSENSE P 100mV TA = +25NC -40NC < TA <+125NC -1.5V P VCM P 60V, TA = +25NC -1.5V P VCM P 60V, -40NC P TA P +125NC TA = +25NC -40NC < TA < +125NC 120 110 90 35 60 60 25 TA = +25NC -40NC < TA < +125NC VCM < 2V FS VCM R 2V MAX9643T MAX9643U 100 400 300 mV 0.02 0.15 0.3 130 -1.5 3.5 VCC 10 +60 V 60 50 400 FV dB dB FA FA FA SYMBOL CONDITI.


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