MAX4373 Maxim, MAX4373 Datasheet
MAX4373
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MAX4373 Summary of contents
Page 1
... The comparator output of the MAX4373/MAX4374/ MAX4375 is latched to provide a turn-off flag that doesn’t oscillate. In addition, the MAX4374/MAX4375 contain a second comparator for use in window-detec- tion functions ...
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... Current into Any Pin..........................................................±10mA 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 ...
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Low-Cost, Micropower, High-Side Current-Sense Amplifier + Comparator + Reference ICs ELECTRICAL CHARACTERISTICS (continued +2.7V to +28V +28V RS+ Typical values are +25°C.) (Note 1) A PARAMETER SYMBOL -3dB Bandwidth ...
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... R LOAD LOAD = +12V. RS+ Typical Operating Characteristics = 0V 100mV, V RESET SENSE PULL-UP SUPPLY CURRENT vs. COMMON-MODE VOLTAGE 52 51 MAX4374/MAX4375 MAX4373 5mV SENSE COMMON-MODE VOLTAGE (V) = 1MΩ unless otherwise noted. A MIN ...
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... V (mV) SENSE TOTAL OUTPUT ERROR vs. COMMON-MODE VOLTAGE A = +100V +50V +20V COMMON-MODE VOLTAGE (V) SMALL-SIGNAL PULSE RESPONSE (A = +100V/V) V 30mV 10mV 1.5V 500mV 20µs/div = +20V/V 125 150 MAX4373 toc11 30mV 10mV ...
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... A = +20V 1000k = +5V 10kΩ +25°C, unless PULL-UP A LARGE-SIGNAL PULSE RESPONSE (A = +100V/V) V MAX4373 toc14 150mV 50mV 7.5V 2.5V 20µs/div POWER-SUPPLY REJECTION vs. FREQUENCY 10 100 1k 10k 100k FREQUENCY (Hz) LARGE-SIGNAL GAIN vs. FREQUENCY V = 100mV (20, 50 50mV (100) IN ...
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... R = 10kΩ +25°C, unless PULL-UP A COMPARATOR POWER-UP DELAY MAX4373 toc20 PULL- 10µs/div COMPARATOR PROPAGATION DELAY V = 5mV OD 2µs/div COMPARATOR PROPAGATION DELAY vs. TEMPERATURE V = 5mV OD -50 ...
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... Amplifier + Comparator + Reference ICs (V = +12V +12V 1MΩ, V RS+ CC LOAD otherwise noted.) COMPARATOR RESET VOLTAGE vs. SUPPLY VOLTAGE 2.0 1.8 1.6 1.4 1.2 1.0 0 SUPPLY VOLTAGE (V) COMPARATOR AC RESPONSE MAX4373 toc31 INPUT OUTPUT 10µs/div GAIN ACCURACY vs. TEMPERATURE 1.0 0 +20V/V, +50V +100V/V V 0.4 0.2 0 -60 -40 - TEMPERATURE (°C) ...
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... Load-Side Connection for the External Sense Resistor RS+ Power Connection to the External Sense Resistor N.C. No Connection. Not internally connected. The MAX4373 high-side current-sense supervisor fea- tures a high-side current-sense amplifier, bandgap ref- LOAD erence, and comparator with latching output to monitor a supply for an overcurrent condition (Figure 1). The ...
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... TO 5.5V PUSHBUTTON Figure 2. MAX4373 Overcurrent Protection Circuit The overcurrent protection circuit, shown in Figure 2, uses the MAX4373 to control an external P-channel MOSFET. The MOSFET controlled by the MAX4373 opens the current path under overload conditions. The A V latched output of the MAX4373’s comparator prevents the circuit from oscillating, and the pushbutton resets the current path after an overcurrent condition ...
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... The following formula can be used to determine the appropriate RC value. where T is the maximum time for V 0.8V is the maximum RESET logic low voltage. For example, a 470kΩ resistor and 0.22µF capacitor will keep RESET low during a power-up time 36ms. . The simplest ...
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... Low-Cost, Micropower, High-Side Current-Sense Amplifier + Comparator + Reference ICs TOP VIEW + RS+ OUT 2 7 RS- MAX4373 CIN1 3 6 COUT1 GND RESET 4 5 µMAX/SO Ordering Information (continued) PART TEMP RANGE MAX4374TEUB+ -40°C to +85°C MAX4374TESD+ -40°C to +85°C MAX4374FEUB+ -40°C to +85°C MAX4374FESD+ -40° ...
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... Clarified V RS+ 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © ...