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UZXYY Folha de dados(PDF) 2 Page - Advanced Analogic Technologies |
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UZXYY Folha de dados(HTML) 2 Page - Advanced Analogic Technologies |
2 / 15 page Pin Descriptions Pin Configuration TSOPJW-12 (Top View) 1 2 3 4 5 6 12 11 10 9 8 7 EN IU EN IL GND VCC VCC VCC RDY RHYS ISETU ISETL OUT OUT Pin # Symbol Function 1 EN IU Enable input. Active low enable with internal pull up. Also switches in the higher current limit to allow the System to start functioning. Can be directly connected to System Ready for automatic enabling. When both EN IL and EN IU are enabled, I SETU will be selected. 2 EN IL Enable input. Active low enable with internal pull up. Also switches in the lower current limit initiating the super capacitor to start charging. 3 GND Device ground connection. 4, 5, 6 VCC Input pins to the P-channel MOSFET source. Connect 1µF capacitor from VCC to GND. 7, 8 OUT P-channel MOSFET drain connection. Connect to super capacitor from OUT to GND. 9 ISETL Lower current-limit set input. A resistor from ISETL to ground sets the maximum lower cur- rent limit for the switch. Current limit can be set between 100mA and 1200mA. 10 ISETU Upper current limit set input. A resistor from ISETU to ground sets the maximum upper cur- rent limit for the switch. Current limits can be set between 100mA and 1200mA. Connect to ground to disable current limit. 11 RHYS System READY hysteresis. Connect a resistor to ground to set the System Ready com- parator hysteresis. 12 RDY System ready pin. Open drain, active low, initiated when the capacitor is 98% charged. AAT4620 PCMCIA Current Limit Interface and Capacitor Charger 2 4620.2007.04.1.1 |
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