{"product_id":"high-side-switch-with-input-overvoltage-and-overcurrent-protection","title":"High Side Switch with Input Overvoltage and Overcurrent Protection","description":"\u003cp\u003eThe project here is a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e48V\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprotected, high side switch designed to switch a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e5A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoutput load from input voltages from\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8V to 48V\u003c\/strong\u003e. The circuit helps the user to easily ON\/OFF the high current and voltage load with over-voltage lockout and over-current protection. The wide input range and low shutdown current (\u003cstrong\u003e1μA typical\u003c\/strong\u003e) make it suitable for automotive, industrial, medical instruments, and telecom applications. This board offers a low\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e50ns\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(typical) propagation delay, fast switching times (\u003cstrong\u003e\u0026lt;10ns\u003c\/strong\u003e), and 100% duty cycle operation. The project is based on\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLTC7000\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhich is a fast high voltage protected high side N-channel MOSFET driver. An internal charge pump fully enhances an external N-channel MOSFET switch, allowing it to remain on indefinitely. Its powerful gate driver can drive large gate capacitance MOSFETs with very short transition times, ideal for both high-frequency switching and static switch applications.\u003c\/p\u003e\n\u003cp\u003eThe circuit operates over an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8V to 48V\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einput supply range. When an external current sense resistor and internal comparator sense that the switch current has exceeded a pre-set level, a fault flag is asserted and the switch is turned off after a period of time set by an external timing capacitor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eC7.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAfter a cooldown period, it goes back on. The circuit is also configured to act when an overvoltage condition occurs. When voltage rise more than setpoint of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e48V\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eit switches off the output and remains off until input is cycled. Resistors\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eR7, R8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare provided to set the overvoltage lockout,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eR10\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esets the overcurrent limit, U2 5V is a regulator, Pin 3 (IMP) of CN3-CN4 provided to enable the output. This pin needs a High-level TTL-5V signal to enable the output, connect this pin to 5V to enable the output. When a fault condition occurs, disconnect the IMP pin from 5V and connect it to GND, pull up this pin to recycle the output.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupply 8V to 48V DC\u003c\/li\u003e\n\u003cli\u003eLoad Current 5Amps\u003c\/li\u003e\n\u003cli\u003eOver Voltage threshold 48V\u003c\/li\u003e\n\u003cli\u003eEasy On\/OFF the high voltage and High Current Load\u003c\/li\u003e\n\u003cli\u003eOvervoltage Lockout\u003c\/li\u003e\n\u003cli\u003eOver Current Protection\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 61.28 x 43.66 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":46916451991724,"sku":"G124","price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/G124A.jpg?v=1786527801","url":"https:\/\/dotfry.com\/products\/high-side-switch-with-input-overvoltage-and-overcurrent-protection","provider":"dotfry","version":"1.0","type":"link"}