{"product_id":"snj55451bfk","title":"SNJ55451BFK","description":"\u003cp\u003eThe SNJ55451BFK is a dual peripheral driver from Texas Instruments, designed to bridge low-power logic circuits and high-current loads. It features two open-collector outputs capable of sinking up to 300mA, making it ideal for driving relays, solenoids, lamps, and LEDs. Operating from a 4.5V to 5.5V logic supply, it provides a simple interface between 5V logic and higher-voltage or higher-current peripherals. Housed in a 20-CLCC ceramic package, it is rated for -55°C to 125°C, ensuring robust performance in industrial and military environments.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Current Sinking (300mA):\u003c\/strong\u003e Directly drives relays, solenoids, and lamps without external transistors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen-Collector Outputs:\u003c\/strong\u003e Provides flexibility to connect loads to different supply voltages, enabling level shifting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Channel Design:\u003c\/strong\u003e Two independent drivers in one package save board space and simplify layout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e -55°C to 125°C operation makes it suitable for harsh environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeramic Package:\u003c\/strong\u003e Offers high reliability and hermetic sealing for mission-critical applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRelay and Solenoid Driving\u003c\/h3\u003e\u003cp\u003eThe SNJ55451BFK can directly drive relays and solenoids in industrial control systems. The 300mA sink current is sufficient for many small-to-medium relays, and the open-collector output allows for a separate load supply voltage.\u003c\/p\u003e\u003ch3\u003eLED Display and Lamp Drivers\u003c\/h3\u003e\u003cp\u003eDrive high-current LEDs or incandescent lamps in indicator panels. The open-collector output can switch loads up to 30V (depending on external components), making it versatile for various lighting applications.\u003c\/p\u003e\u003ch3\u003eMotor Control Interfaces\u003c\/h3\u003e\u003cp\u003eInterface low-voltage logic to higher-power motor driver stages. The high current capability allows it to drive the gate or base of power transistors, providing a buffer between control logic and power electronics.\u003c\/p\u003e\u003ch3\u003eAutomotive ECU Outputs\u003c\/h3\u003e\u003cp\u003eIn automotive engine control units, this driver can actuate fuel injectors or solenoids. Its wide temperature range (-55°C to 125°C) ensures reliable operation under hood.\u003c\/p\u003e\u003ch3\u003eIndustrial Logic-to-Power Conversion\u003c\/h3\u003e\u003cp\u003eConvert 5V logic signals to higher-voltage industrial signals (e.g., 12V or 24V) using an external pull-up resistor. The open-collector output enables this level shifting with minimal components.\u003c\/p\u003e\u003ch3\u003ePeripheral Power Switching\u003c\/h3\u003e\u003cp\u003eUse it to power up or down peripheral devices in a system. The high current rating allows for controlled switching of external modules, reducing standby power consumption.\u003c\/p\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\u003ccol\u003e\u003c\/colgroup\u003e \u003ctbody\u003e \u003ctr\u003e \t\u003ctd\u003eProduct attributes\u003c\/td\u003e \t\u003ctd\u003eProperty Value\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eManufacturer\u003c\/td\u003e \t\u003ctd\u003eTexas Instruments\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003e | \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePart Status\u003c\/td\u003e \t\u003ctd\u003eActive\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eLogic Type\u003c\/td\u003e \t\u003ctd\u003ePeripheral Driver\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of Elements\u003c\/td\u003e \t\u003ctd\u003e2\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of Bits per Element\u003c\/td\u003e \t\u003ctd\u003e1\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eInput Type\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOutput Type\u003c\/td\u003e \t\u003ctd\u003eOpen Collector\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCurrent - Output High, Low\u003c\/td\u003e \t\u003ctd\u003e300µA, 300mA\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply\u003c\/td\u003e \t\u003ctd\u003e4.5V ~ 5.5V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e-55°C ~ 125°C (TA)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eGrade\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eQualification\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMounting Type\u003c\/td\u003e \t\u003ctd\u003eSurface Mount\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackage \/ Case\u003c\/td\u003e \t\u003ctd\u003e20-CLCC\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e20-CLCC\u003c\/td\u003e \u003c\/tr\u003e  \u003ctr\u003e   \u003ctd\u003eROHS\u003c\/td\u003e   \u003ctd\u003e\u003cimg class=\"ROSHICON\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/ROHSICON.png?v=1757832376\"\u003e\u003c\/td\u003e  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdl\u003e\n\u003cdt\u003eQ: What is the logic family of the SNJ55451BFK?\u003c\/dt\u003e\n\u003cdd\u003eA: It is a standard 54-series peripheral driver, not a specific high-speed logic family.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the function of this IC?\u003c\/dt\u003e\n\u003cdd\u003eA: It is a dual (2-channel) peripheral driver designed to interface logic signals to loads like relays, lamps, or LEDs.\u003c\/dd\u003e\n\u003cdt\u003eQ: How many channels does it have?\u003c\/dt\u003e\n\u003cdd\u003eA: It contains 2 independent driver channels.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the output type?\u003c\/dt\u003e\n\u003cdd\u003eA: The outputs are Open Collector, allowing for high-voltage or high-current switching.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the operating voltage range?\u003c\/dt\u003e\n\u003cdd\u003eA: It operates from 4.5V to 5.5V for the logic supply.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the maximum output current?\u003c\/dt\u003e\n\u003cdd\u003eA: It can sink up to 300mA per channel, making it suitable for driving inductive or resistive loads.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Texas Instruments","offers":[{"title":"Default Title","offer_id":53666250719521,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/hqickey.com\/products\/snj55451bfk","provider":"HQICKEY","version":"1.0","type":"link"}