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MAX1838EEE Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX1838EEE Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 12 page Dual USB Switch with Fault Blanking and Autoreset 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (VIN__ = VAUX__ = V ON = 5V, SEL = GND, ADJ_ = open, TA = -40 °C to +85°C, unless otherwise noted. Circuit of Figure 1.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN MAX UNITS VIN_ – VOUT_ = 0.5V, SEL = AUX_ 0.6 1.2 Current-Limit Threshold ILIM VAUX_ – VOUT_ = 0.5V, SEL = GND 0.6 1.2 A SEL = GND, VOUT_ = 0 (IOUT_ pulsing) 0.6 1.8 Short-Circuit Current Limit ISHORT SEL = AUX_, VOUT_ = 0 0.6 1.8 APEAK Continuous Current-Limit Blanking Timeout Period From continuous current-limit condition to FAULT_ assertion 940 ms Short-Circuit Blanking Timeout Period From short-circuit current-limit condition to FAULT_ assertion 740 ms Turn-On Delay ROUT_ = 10 Ω, does not include rise time (from ON asserted to VOUT_ = 10% of VIN_), COUT_ = 1µF 0.5 4 ms Turn-Off Delay from ON ROUT_ = 10 Ω, does not include fall time (from ON asserted to VOUT_ = 90% of VIN_), COUT_ = 1µF 3ms Logic Input High Voltage VIN_ = 4V to 5.5V 2 V Logic Input Low Voltage VIN_ = 4V to 5.5V 0.8 V Logic Input Current V ON = 0 or 5.5V -1 1 µA FAULT_ Output Low Voltage VIN_ = 4V, sinking 1mA 0.4 V FAULT_ Output High Leakage Current VIN_ = V FAULT_ = 5.5V 1 µA Autoreset Current In latched-off state, VOUT_ = 0 10 55 mA Autoreset Threshold In latched-off state, VOUT_ rising 0.4 0.6 V Autoreset Blanking Time In latched-off state, VOUT_ > 1 V 9 40 ms AUX_ to IN_ or IN_ to AUX_ Select Delay Make-before-break (Note 1) 4.5 18 ms Note 1: SEL delay includes both make and break delay. The host system should wait for at least this interval before turning off the appropriate input supply. Note 2: Specifications from 0 °C to -40°C are guaranteed by design, not production tested. |
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