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US3X77XG-SM1-R Datasheet(PDF) 7 Page - Unisonic Technologies |
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US3X77XG-SM1-R Datasheet(HTML) 7 Page - Unisonic Technologies |
7 / 10 page US3X77 CMOS IC UNISONICTECHNOLOGIESCO.,LTD 7 of 10 www.unisonic.com.tw QW-R502-568.C TYPICAL APPLICATION CIRCUIT Supply Voltage 5V Ferrite Beades 1µF 0.1µF 150µF VBUS D+ D- GND Data IN EN GND OUT OC UTC US3X77 Chip Enable RFG Pull-Up Resistor (10K ~ 100K) Over - Current Flag Transient Filtering USB Controller 0.1µF 10K Note. A low-ESR 150μF aluminum electrolytic or tantalum between VOUT and GND is strongly recommended to meet the 330mV maximum droop requirement in the hub VBUS. POWER SUPPLY CONSIDERATIONS A 1μF bypass capacitor on IN pins, a high value capacitor and a 0.1uF bypass capacitor on OUT pins, are strongly recommended, because this precaution can reduce a poor risk that an output short may cause sufficient ringing on the input to damage internal control circuitry. Input transients must not exceed the absolute maximum supply voltage (6V) even for a short duration. ENABLE INPUT EN must be driven logic high or logic low for a clearly defined input. Floating the input may cause unpredictable operation. EN should not be allowed to go negative with respect to GND. |
Similar Part No. - US3X77XG-SM1-R |
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Similar Description - US3X77XG-SM1-R |
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