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APL3512 Datasheet(PDF) 1 Page - Anpec Electronics Coropration |
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APL3512 Datasheet(HTML) 1 Page - Anpec Electronics Coropration |
1 / 21 page Copyright © ANPEC Electronics Corp. Rev. A.6 - Aug., 2012 APL3512 www.anpec.com.tw 1 ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Power-Distribution Switches with Soft Start • 90m Ω High Side MOSFET • 2A Continuous Current • Soft-Start Time Programmable by External Capacitor • Wide Supply Voltage Range: 2.7V to 5.5V • Current-Limit and Short-Circuit Protections • Under-Voltage Lockout Protection • Reverse Current Blocking when Switch Disabled • Over-Temperature Protection • Logic Level Enable Input APL3512A: Active High APL3512B: Active Low • Lead Free and Green Devices Available (RoHS Compliant) Features General Description Applications • TFT LCD Modules • Notebook and Desktop Computers • USB Ports • High-Side Power Protection Switches Simplified Application Circuit The APL3512A/B is a power-distribution switch with some protection functions that can deliver current up to 2A. The device incorporates a 90m Ω N-channel MOSFET power switch that is controlled by an enable logic pin and has a SS pin dedicated to soft-start ramp-up rate control that can be used in application where the inrush current is concerned. The device integrates some protection features, includ- ing current-limit protection, short-circuit protection, over- temperature protection, and UVLO. The current-limit and short-circuit protection can protect down-stream devices from catastrophic failure by limiting the output current at current-limit threshold during over-load or short-circuit events. When V OUT drops below VIN-1.5V the devices limit the current to a lower and safe level. The over-tempera- ture protection function shuts down the N-channel MOSFET power switch when the junction temperature rises beyond 140oC and will automatically turns on the power switch when the temperature drops by 20oC. The UVLO function keeps the power switch in off state until there is a valid input voltage present. The device is available in lead free SOT-23-5, TDFN2x2- 6 and SOP-8 packages with enable active-high(EN) and active-low(ENB) versions. VIN VOUT GND APL3512A/B SS EN/ ENB V IN V OUT EN Control |
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