MAX4080 Maxim, MAX4080 Datasheet
MAX4080
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MAX4080 Summary of contents
Page 1
... The MAX4080 is designed for unidirectional current-sense applications and the MAX4081 allows bidirectional current sensing. The MAX4081 single output pin continuously monitors the transition from charge to discharge and avoids the need for a separate polarity output ...
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... V = 76V load MAX4081 , 0V 76V RS 76V RS- CC RS+ MAX4080F/MAX4081F MAX4080T/MAX4081T MAX4080S/MAX4081S MAX4080F/MAX4081F A MAX4080T/MAX4081T V MAX4080S/MAX4081S T = +25° 48V CC RS+ ∆ -40°C to +85° (Note MIN T = +25° 48V CC RS -40°C to +85°C ...
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High-Side, Current-Sense Amplifiers with DC ELECTRICAL CHARACTERISTICS (continued 4.5V to 76V RS+ REF1A T , unless otherwise noted. Typical values are at T MAX PARAMETER SYMBOL OUT Low Voltage REF1A = ...
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... SENSE MAX4080F, 10mV to 1000mV MAX4080T, 10mV to 250mV MAX4080S, 10mV to 100mV MAX4081F, -500mV to +500mV MAX4081T, -125mV to +125mV MAX4081S, -50mV to +50mV Note extrapolated from the gain accuracy test for the MAX4080 and measured MAX4081. Note 7: V is: SENSE MAX4080F, 500mV MAX4080T, 125mV ...
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... FREQUENCY (Hz) MAX4080F/T/S SMALL-SIGNAL GAIN vs. FREQUENCY 10mV SENSE 45 40 MAX4080S 35 30 MAX4080T 25 20 MAX4080F 0 100 FREQUENCY (kHz) Voltage Output GAIN ACCURACY vs. TEMPERATURE 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -50 - TEMPERATURE (°C) MAX4081F/T/S POWER-SUPPLY REJECTION RATIO vs ...
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... A 0. +25°C 0.20 A 0.15 0.10 = 0° -40° 0. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 I (SOURCING) (mA) OUT MAX4080T SMALL-SIGNAL TRANSIENT RESPONSE MAX4080 toc17 INPUT 5mV/div OUTPUT 100mV/div 20µs/div MAX4080 SUPPLY CURRENT vs. TEMPERATURE 115 110 105 100 -50 - 100 76 TEMPERATURE (°C) ...
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... LOAD A MAX4081T SMALL-SIGNAL TRANSIENT RESPONSE MAX4080 toc20 INPUT 2.5mV/div OUTPUT 50mV/div 20µs/div MAX4080T LARGE-SIGNAL TRANSIENT RESPONSE MAX4080 toc23 INPUT 100mV/div OUTPUT 2V/div 20µs/div MAX4081T LARGE-SIGNAL TRANSIENT RESPONSE MAX4080 toc26 INPUT 100mV/div OUTPUT 2V/div 20µs/div ...
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... Typical Operating Characteristics (continued) = ∞ 20pF +25°C, unless otherwise noted.) LOAD A MAX4080F SATURATION RECOVERY RESPONSE (V = 4.5V) CC MAX4080 toc29 INPUT 500mV/div OUTPUT 2V/div 20µs/div MAX4080T STARTUP DELAY (V = 250mV) SENSE MAX4080 toc30 10V) 5V/div OUTPUT 2.5V/div 100µs/div ...
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... I β IRG1. Amplifier A2 is used to convert the output current to a voltage and then sent through amplifier A3. ) Total gain = 5V/V for MAX4080F, 20V/V for the CC ). High- RS+ MAX4080T, and 60V/V for the MAX4080S. The MAX4081 input stage differs slightly from the MAX4080 (Figure 3). Its topology allows for monitoring of bidirectional currents through the sense resistor ...
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... REF ages and below V for negative-sense voltages. REF V is equal to V when V OUT REF SENSE Set the full-scale output range by selecting R the appropriate gain version of the MAX4080/ MAX4081. 10 ______________________________________________________________________________________ I CHARGE SYSTEM LOAD AND CHARGER RS+ REF1A -250mV 5V REF1B ...
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... SENSE > The RS+ RS- tor’s power dissipation is exceeded, its value may drift or it may fail altogether. The MAX4080/MAX4081 sense a wide variety of cur- rents with different sense-resistor values. Table 1 lists common resistor values for typical operation. Voltage Output FULL-SCALE MAX4081 FULL-SCALE V ...
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... R SENSE RS+ RS REF1A MAX4081 REF1B GND Figure 4. MAX4081 Reference Inputs The full-scale output voltage is V OUT A , for the MAX4080 and V (MAX for the MAX4081. SENSE LOAD(MAX 1000mV for the 5V/V gain version, SENSE(MAX) 250mV for the 20V/V gain version, and 100mV for the 60V/V gain version ...
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... POWER MANAGEMENT OUT AND CHARGER CIRCUITRY SERIAL INTERFACE µC Figure 5. MAX4081 Used In Smart-Battery Application Selector Guide PART GAIN (V/V) MAX4080FAUA 5 MAX4080FASA 5 MAX4080TAUA 20 MAX4080TASA 20 MAX4080SAUA 60 MAX4080SASA 60 MAX4081FAUA 5 MAX4081FASA 5 MAX4081TAUA 20 MAX4081TASA 20 MAX4081SAUA 60 MAX4081SASA 60 ______________________________________________________________________________________ V = 4.5V TO 76V CC 1.8V BATTERY PROCESS: Bipolar Ordering Information (continued) PART MAX4081FAUA+ ...
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... Added automotive part designation Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...