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USB3803 Datasheet(PDF) 84 Page - Microchip Technology |
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USB3803 Datasheet(HTML) 84 Page - Microchip Technology |
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84 / 99 page  USB3803 DS00001691B-page 84 2014-2015 Microchip Technology Inc. 10.10 Regulator Output Voltages and Capacitor Requirement 10.11 ESD and Latch-Up Performance 10.12 ESD Performance The USB3803 is protected from ESD strikes. By eliminating the requirement for external ESD protection devices, board space is conserved, and the board manufacturer is enabled to reduce cost. The advanced ESD structures integrated into the USB3803 protect the device whether or not it is powered up. 10.12.1 HUMAN BODY MODEL (HBM) PERFORMANCE HBM testing verifies the ability to withstand the ESD strikes like those that occur during handling and manufacturing, and is done without power applied to the IC. To pass the test, the device must have no change in operation or perfor- mance due to the event. All pins on the USB3803 provide ±5 kV HBM protection, as shown in Table 10-12. 10.12.2 EN 61000-4-2 PERFORMANCE The EN 61000-4-2 ESD specification is an international standard that addresses system-level immunity to ESD strikes while the end equipment is operational. In contrast, the HBM ESD tests are performed at the device level with the device powered down. Microchip contracts with Independent laboratories to test the USB3803 to EN 61000-4-2 in a working system. Reports are available upon request. Please contact your Microchip representative, and request information on 3rd party ESD test results. The reports show that systems designed with the USB3803 can safely provide the ESD performance shown in without additional board level protection. TABLE 10-11: REGULATOR OUTPUT VOLTAGES AND CAPACITOR REQUIREMENT Parameter Symbol Conditions Min Typ Max Units Regulator Output Voltage VDD33 5.5V > VBAT > 2.9V 2.8 3.3 3.6 V Regulator Capacitor CBYP33 4.7 μF Capacitor ESR CESR33 1 Ω Regulator Output Voltage VDD12 3.6V > VDD33 > 2.8V 1.2 V Regulator Capacitor CBYP12 1.0 μF Capacitor ESR CESR12 1 Ω TABLE 10-12: ESD AND LATCH-UP PERFORMANCE Parameter Conditions Min Typ Max Units Comments ESD Performance Human Body Model ±5 kV Device System EN/IEC 61000-4-2 Contact Dis- charge ±15 kV 3rd party system test System EN/IEC 61000-4-2 Air-gap Dis- charge ±15 kV 3rd party system test Latch-Up Performance All Pins EIA/JESD 78, Class II 150 mA |
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