FP0030K1-G

Supertex inc. FP0030 Low Voltage Protection Switch Features General Description The Supertex FP0030 is a 20V current limiting protection Up to 20V input voltage protection device. It is designed to protect Ethernet systems from high Low on-resistance - 6.5 typical transient voltages. Fast switching speed Effectively, a simple two terminal device The FP0030 can be considered as a normally closed switch No external power supplies needed with a typical switch resistance of 6.5. The device starts to turn off when the voltage drop across the two terminals exceeds a nominal value of 1.5V. In the off state, the FP0030 Applications can withstand up to 20V across its terminals. A small amount Ethernet system protection of current, typical 800A is allowed to flow through the device. Resettable fuse The FP0030 can also be used as a resettable fuse to protect High side switch power lines against output short circuit conditions. Data acquisition The FP0030 is available in a 3-Lead SOT-23 package. Typical Application Circuit 3.3V 3.3V Data FP0030 Line 1 3.3V 3.3V Ethernet Data FP0030 Line 2 Port Doc. DSFP-FP0030 Supertex inc. A072312 www.supertex.comFP0030 Ordering Information Part Number Package Packing FP0030K1-G 3-Lead SOT-23 3000/Reel -G indicates package is RoHS compliant (Green) Pin Configuration Absolute Maximum Ratings Parameter Value SUB V , Differential voltage drop 0 to 22V A-B Maximum junction temperature +125C Storage temperature range -65 to +150C B 1 Power dissipation, T 25C 360mW A A Absolute Maximum Ratings are those values beyond which damage to the device may SOT-23 (K1) occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground. Note: Product Marking 1. Mounted on FR4 board, 25mm x 25mm x 1.57mm. W = Code for week sealed F03W Typical Thermal Resistance = Green Packaging Package ja Package may or may not include the following marks: Si or O 3-Lead SOT-23 203 C/W SOT-23 (K1) O Electrical Characteristics (T = 25 C unless otherwise specified) j Sym Parameter Min Typ Max Units Conditions BV Differential input voltage range from A to B 20 - - V I = 2.0mA A-B A-B R Switch ON-resistance from A to B - 6.5 8.5 I = 50mA, V or V = 0V SW A-B A B V V trip point to turn off - 1.5 V --- - TRIP A-B V Switch turn off voltage - 3.2 - V I = 1.0mA OFF A-B I Switch off current - 800 1500 A V = 15V A-B(OFF) A-B I Peak switching current - 155 - mA --- PEAK T Turn off time - 30 60 ns See Figure 1 OFF T Turn on time - 1.0 2.0 s See Figure 2 ON C Switch ON-capacitance from A to B or B to A - 32 - pF SW = ON SW(ON) C Switch OFF-capacitance from A to B or B to A - 11 - pF V = 10V SW(OFF) SW O T Operating junction temperature -40 - +125 C --- j Doc. DSFP-FP0030 Supertex inc. A072312 www.supertex.com 2