MAX4787 Maxim, MAX4787 Datasheet
MAX4787
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MAX4787 Summary of contents
Page 1
... The switch remains on after the overload condition disappears. The MAX4785 and MAX4787 are available in a tiny space-saving 4-pin or 5-pin SC70 package. The MAX4786 and MAX4788 are available only in the 4-pin SC70 package. For higher current current-limiting switches, refer to the MAX4789– ...
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... Rising edge T = +25° 20mA A OUT -40°C to +85° 20mA A OUT 1mA (MAX4785/MAX4787) SINK 5.5V (MAX4785/MAX4787) F LAG IN ON from low to high 10mA, OUT C = 0.1µ from high to low 10mA, OUT C = 0.1µ 3.3V +25°C.) (Note MIN TYP MAX UNITS 2 ...
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Current-Limit Switches ELECTRICAL CHARACTERISTICS (continued 2.3V to 5.5V -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Blanking Time Short-Circuit Current-Limit Response Time Retry Time (Note 4) Note 1: ...
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... Typical Operating Characteristics (continued) 300 V = 3.3V CC 250 200 150 100 MAX4785 toc11 1µ 2V/div V ON 2V/div I OUT 100mA/div OUTPUT CURRENT vs. OUTPUT VOLTAGE MAX4787/MAX4788 MAX4785/MAX4786 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3 (V) IN OUT FLAG-BLANKING TIMEOUT vs. TEMPERATURE -40 - TEMPERATURE (° ...
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Current-Limit Switches (V = 3.3V +25°C, unless otherwise noted CURRENT-LIMIT RESPONSE (OUT SHORTED TO GND) 40µs/div SWITCH TURN-OFF TIME RESPONSE 100ns/div PIN NAME SC70 SC70 1 1 OUT 2 2 GND FLAG — ...
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... If the faulty load condition is not pre- sent, the switch remains on. The MAX4785 and MAX4787 do not have the autoretry option and the switch remains in latch-off mode until the ON pin or the input power is cycled from high to low and then high again ...
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... High Thermal High Current limit The MAX4785 and MAX4787 feature a latched fault out- put, FLAG. Whenever a fault is activated, it latches FLAG output low and also turns the switch off. FLAG is an open-drain output transistor and requires an exter- nal pullup resistor from FLAG to IN. During shutdown (ON is low), the pulldown on FLAG output is released in order to limit power dissipation ...
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... 98ms. RETRY Attention must be given to the MAX4785 and MAX4787 where the latch-off condition must be manually reset by toggling ON from high to low. If the latch-off time dura- tion is not sufficiently high possible for the device to reach the thermal-shutdown threshold and never be able to turn the device on until it cools down ...
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... Current-Limit Switches (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) Chip Information TRANSISTOR COUNT: 1659 PROCESS: BiCMOS _______________________________________________________________________________________ Package Information PACKAGE OUTLINE, 4L SC70 1 21-0098 ...
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... For the latest package outline information www.maxim-ic.com/packages.) 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. ...