{"product_id":"brushed-dc-motor-driver-with-integrated-current-regulation","title":"Brushed DC Motor Driver with Integrated Current Regulation","description":"\u003cp\u003eThe highly efficient\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDC brushed motor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edriver including an onboard shunt resistor for current regulation presented here is built using the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDRV8251\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003echip. The operating supply voltage range of the project is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4.5V to 48V DC\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eand the default output current capability is 2.1A. A trimmer potentiometer PR1 is provided to adjust the current regulation threshold. The device includes under-voltage lockout (UVLO), Latched overcurrent protection (OCP), and thermal shutdown (TSD). Output is disabled and latched when over current\/stall current condition occurs. For direction control of the motor use\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eIN1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eIN2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eas logic inputs and for speed control these inputs can be connected to a PWM source with duty cycle\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0 to 100%\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand frequency\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e20Khz\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv class=\"simple-alert-boxes sab_info sab_normal\"\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf current regulation is not required, the I\u003csub\u003eSEN\u003c\/sub\u003e\u003cspan\u003e \u003c\/span\u003epin should be directly connected to the PCB ground plane, thus shunt resistor R4 should be 0 Ohms. Refer to the datasheet of the chip for adjusting the load current regulation.\u003c\/div\u003e\n\u003ch3\u003eConnections and Other details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCN1: Pin 1 Output 1, Pin 2 Output 2 (Motor Connections)\u003c\/li\u003e\n\u003cli\u003eCN2: Pin 1 VCC 5V DC for V-REF, Pin 2 Input 1 PWM or Logic, Pin 3 Input 2 PWM or Logic, Pin 4 GND\u003c\/li\u003e\n\u003cli\u003eCN3: Pin 1 VM Motor Supply 4.5V to 48V DC, Pin 2 GND\u003c\/li\u003e\n\u003cli\u003eLED: D2, D3 Motor Direction Indicator\u003c\/li\u003e\n\u003cli\u003eLED: D1 Power LED\u003c\/li\u003e\n\u003cli\u003ePR1 Trimmer Potentiometer: Current Regulation Threshold Adjust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5V to 48V operating supply voltage range\u003c\/li\u003e\n\u003cli\u003eVCC Supply 5V DC 10mA (V-Ref = 4V for 2.1A Adjust Using PR1)\u003c\/li\u003e\n\u003cli\u003eLoad Current Up to 2.1Amp\u003c\/li\u003e\n\u003cli\u003eMotor Trip Point 1.9 Amp\u003c\/li\u003e\n\u003cli\u003ePin-to-pin, RDS (on), voltage, and current sense\/regulation variants (external shunt resistor and integrated current mirror)\u003c\/li\u003e\n\u003cli\u003ePWM control interface, PWM Frequency 20Khz (Range Up to 200Khz)\u003c\/li\u003e\n\u003cli\u003eSupports 1.8-V, 3.3-V, and 5-V logic inputs, IN1 and IN2\u003c\/li\u003e\n\u003cli\u003eIntegrated current regulation\u003c\/li\u003e\n\u003cli\u003eLow-power sleep mode\u003c\/li\u003e\n\u003cli\u003eIntegrated protection features, VM under-voltage lockout (UVLO), Latched overcurrent protection (OCP)\u003c\/li\u003e\n\u003cli\u003eThermal shutdown (TSD)\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 55.25 x 37.47mm\u003c\/li\u003e\n\u003cli\u003e4 x 3mm Mounting Holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eVideo\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003ehttps:\/\/www.youtube.com\/watch?v=r6nJbBUHoXM\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47196925984940,"sku":"M118","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/M118A.jpg?v=1789293445","url":"https:\/\/dotfry.com\/products\/brushed-dc-motor-driver-with-integrated-current-regulation","provider":"dotfry","version":"1.0","type":"link"}