{"product_id":"4-x-45w-quad-bridge-audio-amplifier","title":"4 x 45W Quad Bridge Audio Amplifier","description":"\u003cp\u003eThis is an AB class audio amplifier based on the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTDA7388\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003echip and it is a great choice for car audio applications. This compact board has 4 channels each\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e26W\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4 ohms\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003espeaker. Then IC consists of a fully complementary PNP\/NPN configuration and the TDA7388 allows a rail-to-rail output voltage swing with no need for bootstrap capacitors. The extremely reduced boundary components count allows very compact sets. The TDA7388’s inputs are ground-compatible and can stand very high input signals (±8 Vpk) without any performance degradation. The standard value for the input capacitors (0.1 µF) is adopted, and the low-frequency cut-off amount to 16 Hz. 4 x 3.5 mm stereo EP socket helps to feed audio signals, and the onboard screw terminal makes life easy for speaker connections, and the power supply input. Onboard jumpers are provided to select the standby and mute function. D1 indicates power present. Mounting a proper heatsink is very important for chip health.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower Supply 12V DC to 15V DC\u003c\/li\u003e\n\u003cli\u003e4 x 45 W \/ 4 Ω max.\u003c\/li\u003e\n\u003cli\u003e4 x 26 W \/ 4 Ω @ 14.4 V, 1 kHz, 10 %\u003c\/li\u003e\n\u003cli\u003eLow distortion\u003c\/li\u003e\n\u003cli\u003eLow output noise\u003c\/li\u003e\n\u003cli\u003eFrequency Response 20Hz to 20 Khz\u003c\/li\u003e\n\u003cli\u003eStandby function – On Board Jumper\u003c\/li\u003e\n\u003cli\u003eMute function – On Board Jumper\u003c\/li\u003e\n\u003cli\u003eAutomate at min. supply voltage detection\u003c\/li\u003e\n\u003cli\u003eLow external component count:\u003c\/li\u003e\n\u003cli\u003eInternally fixed gain (26 dB)\u003c\/li\u003e\n\u003cli\u003eNo external compensation\u003c\/li\u003e\n\u003cli\u003eNo bootstrap capacitors\u003c\/li\u003e\n\u003cli\u003eStandby Current 100uA (Chip)\u003c\/li\u003e\n\u003cli\u003e4 x 3 mm Mounting Holes\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 73.82 x 55.09 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProtections\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOutput short circuit to GND, to VCC, across the load\u003c\/li\u003e\n\u003cli\u003eVery inductive loads\u003c\/li\u003e\n\u003cli\u003eOverrating chip temperature with soft thermal limiter\u003c\/li\u003e\n\u003cli\u003eLoad dump voltage\u003c\/li\u003e\n\u003cli\u003eFortuitous open GND\u003c\/li\u003e\n\u003cli\u003eReversed battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConnections and Other Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCN1: DC Supply Input Pin1 = VCC, Pin2 GND\u003c\/li\u003e\n\u003cli\u003eCN2: Speaker 4, CN3: Speaker 3, CN7: Speaker 1, CN9: Speaker 2\u003c\/li\u003e\n\u003cli\u003eCN4: Audio Signal Input 3\u003c\/li\u003e\n\u003cli\u003eCN5: Audio Signal Input 4\u003c\/li\u003e\n\u003cli\u003eCN6: Audio Signal Input 2\u003c\/li\u003e\n\u003cli\u003eCN8: Audio Signal Input 1\u003c\/li\u003e\n\u003cli\u003eD1 Power LED\u003c\/li\u003e\n\u003cli\u003eJumper J2: Standby (GND Standby)\u003c\/li\u003e\n\u003cli\u003eJumper J1: Mute (GND Mute)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47037869260972,"sku":"A121","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/A121A.jpg?v=1787574340","url":"https:\/\/dotfry.com\/products\/4-x-45w-quad-bridge-audio-amplifier","provider":"dotfry","version":"1.0","type":"link"}