MAX9643UATA+
MAX9643UATA+ Datasheet
MAX9643
| Part | Datasheet |
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MAX9643UATA+ |
MAX9643UATA+ (pdf) |
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| MAX9643 EVALUATION KIT AVAILABLE 60V High-Speed Precision Current-Sense Amplifier 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 130µV 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 -40°C to +125°C temperature range. ●● Industrial Power Supplies ●● GSM Base Station Power Supply ●● High-Brightness LED Control ●● H-Bridge Motor Control Benefits and Features ●● Supports High-Voltage Applications • Wide Input VCM = -1.5V to +60V ●● Delivers High-Speed Operation • 15MHz Bandwidth ●● Increases System Accuracy • Precision VOS = 130uV max ●● -40°C to +125°C Specified Temperature Range Ordering Information appears at end of data sheet. For related parts and recommended products to use with this part, refer to Typical Operating Circuit MAX9643 GND BOOST POWER-SUPPLY CONTROL LOAD 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 ±15V VCC to +40V VCC > 4.5V OUT to +4.5V VEE to -5V CP1 to +4.5V VCC 4.5V OUT to -0.3V to VCC + 0.3V VEE to +0.3V to -VCC + 0.3V CP1 to -0.3V to VCC + 0.3V CP2 to GND VEE - 0.3V to +0.3V Short-Circuit Continuous Input Current into Any Pin..............................±20mA ESD on RS+, HBM ESD on All Other HBM Maximum Power Dissipation TDFN-EP derate 16.7mW/°C at +70°C .................1333.3mW Operating Temperature Range......................... -40°C to +125°C Junction Lead Temperature 10s, Soldering Temperature 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 Junction-to-Case Thermal Resistance Note 2 Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to Electrical Characteristics VCC = 5V, VRS+ = VRS- = 12V, TA = -40°C to +125°C, unless otherwise noted. Note 3 PARAMETER DC CHARACTERISTICS Input Common-Mode Voltage Range Input Offset Voltage Notes 4, 5 Common-Mode Rejection Ratio Note 5 CMRR vs. Frequency Note 5 Input Bias Current Input Bias Current, VCC = 0V, VRS+ = VRS- = 60V Input Offset Current Note 6 CONDITIONS VCC 5V, guaranteed by CMRR test, VRS+, VRS- VSENSE 100mV VCC < 5V, guaranteed by CMRR test, VSENSE 100mV TA = +25°C VOS -40°C < TA < +125°C +10°C < TA < +85°C CMRR -1.5V VCM 60V, TA = +25°C -1.5V VCM 60V, -40°C TA +125°C AC CMRR f = 100kHz IRS+, IRS- TA = +25°C -40°C < TA < +125°C IRS+, IRS TA = +25°C IRS+ - IRS- +10°C < TA < +85°C Ordering Information PART PINPACKAGE GAIN V/V TEMP RANGE MAX9643TATA+ 8 TDFN-EP* -40°C to +125°C MAX9643UATA+ 8 TDFN-EP* 10 -40°C to +125°C +Denotes a lead Pb -free/RoHS-compliant package. *EP = Exposed paddle. Maxim Integrated 10 MAX9643 60V High-Speed Precision Current-Sense Amplifier Package Information For the latest package outline information and land patterns footprints , go to Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE 8 TDFN-EP PACKAGE CODE T823+1 OUTLINE NO. 21-0174 LAND PATTERN NO. 90-0091 Maxim Integrated 11 MAX9643 60V High-Speed Precision Current-Sense Amplifier 2/13 1/14 10/14 4/15 PAGES CHANGED 3, 5, 6, 9 1, 9 5 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values min and max limits shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. 2015 Maxim Integrated Products, Inc. 12 |
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