{"product_id":"the-isolated-half-bridge-an-igbt-gate-driver-module-with-current-sense-ncd57085dr2g","title":"The Isolated Half-Bridge: An IGBT Gate Driver Module with Current Sense, NCD57085DR2G","description":"\u003cp\u003eThe Isolated Half-Bridge with Current Sense is a compact power electronics module designed to drive two IGBTs in a half-bridge configuration. Each gate driver channel uses an NCD57085DR2G single-channel gate driver IC from onsemi, paired with an R12P21509D isolated DC-DC converter module that generates the +15 V \/ –9 V bias required for proper IGBT operation.\u003c\/p\u003e\n\u003cp\u003eA shunt resistor in the IGBT emitter path provides current sensing for overload detection and current monitoring. Power LEDs on each channel indicate the presence of the gate driver supply voltage. Figure 1 shows the fully assembled module.\u003c\/p\u003e\n\u003cp\u003eHigh-current screw terminals accommodate the load connection and DC bus input. A seven-pin header connector provides access to the high-side and low-side PWM inputs, fault output, and gate driver power. The PCB supports TO-247 package IGBTs, allowing users to select devices appropriate to their application.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eSpecs and Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupply: 12–20 VDC\u003c\/li\u003e\n\u003cli\u003eDC-DC Converter (R12P21509D) Output: +15 V \/ –9 V\u003c\/li\u003e\n\u003cli\u003eGate Driver (NCD57085DR2G) Peak Output Current: +7 A \/ –7 A\u003c\/li\u003e\n\u003cli\u003eIGBT (AFGHL40T65RQDN): 40 A, 650 V\u003c\/li\u003e\n\u003cli\u003eMaximum Load Voltage: 500 V DC\u003c\/li\u003e\n\u003cli\u003eCurrent Sense Threshold: 250 mV (adjustable via shunt resistor value)\u003c\/li\u003e\n\u003cli\u003eOvercurrent fault output (active low; normally high)\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions: 68.90 × 52.07 mm\u003c\/li\u003e\n\u003cli\u003eMounting Holes: 4 × 4 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":46896475570348,"sku":"G104","price":110.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/M104.jpg?v=1786100015","url":"https:\/\/dotfry.com\/products\/the-isolated-half-bridge-an-igbt-gate-driver-module-with-current-sense-ncd57085dr2g","provider":"dotfry","version":"1.0","type":"link"}