The MAX471/MAX472 are complete, bidirectional, highside current-sense amplifiers for portable PCs, telephones, and other systems where battery/DC power-line monitoring is critical. High-side power-line monitoring is especially useful in battery-powered systems, since it does not interfere with the ground paths of the battery chargers or monitors often found in “smart” batteries.
The MAX471 has an internal 35mΩ current-sense resistor and measures battery currents up to ±3A. For applications requiring higher current or increased flexibility, the MAX472 functions with external sense and gain-setting resistors. Both devices have a current output that can be converted to a ground-referred voltage with a single resistor, allowing a wide range of battery voltages and currents.
An open-collector SIGN output indicates current-flow direction, so the user can monitor whether a battery is being charged or discharged. Both devices operate from 3V to 36V, draw less than 100µA over temperature, and include a 18µA max shutdown mode.
Complete High-Side Current Sensing
Precision Internal Sense Resistor (MAX471)
2% Accuracy Over Temperature
Monitors Both Charge and Discharge
3A Sense Capability with Internal Sense Resistor (MAX471)
Higher Current-Sense Capability with External Sense Resistor (MAX472)
Careful, careful, no return policy once ordered, Monitor is very fragile
I order 15.6 inch monitor with built in stand for my Raspberry PI. The issue with built in stand, is that it is so fragile that a slight movement in cables the monitor will move and it can topple breaking the LCD panel. The stand does not help monitor to be in one place, not suitable for regular use.
Be careful before ordering this product as as the company does not accept returns and has not return policy, be careful careful careful.
This is Delhi based company which is importing items from China and selling without any return policy.
{"id":1662968725576,"title":"GY-471 MAX471 3A Range Current Sensor Module","handle":"max471-3a-range-current-sensor-module","description":"\u003cp\u003eThe MAX471\/MAX472 are complete, bidirectional, highside current-sense amplifiers for portable PCs, telephones, and other systems where battery\/DC power-line monitoring is critical. High-side power-line monitoring is especially useful in battery-powered systems, since it does not interfere with the ground paths of the battery chargers or monitors often found in “smart” batteries.\u003c\/p\u003e\n\u003cp\u003eThe MAX471 has an internal 35mΩ current-sense resistor and measures battery currents up to ±3A. For applications requiring higher current or increased flexibility, the MAX472 functions with external sense and gain-setting resistors. Both devices have a current output that can be converted to a ground-referred voltage with a single resistor, allowing a wide range of battery voltages and currents.\u003c\/p\u003e\n\u003cp\u003eAn open-collector SIGN output indicates current-flow direction, so the user can monitor whether a battery is being charged or discharged. Both devices operate from 3V to 36V, draw less than 100µA over temperature, and include a 18µA max shutdown mode.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete High-Side Current Sensing\u003c\/li\u003e\n\u003cli\u003ePrecision Internal Sense Resistor (MAX471)\u003c\/li\u003e\n\u003cli\u003e2% Accuracy Over Temperature\u003c\/li\u003e\n\u003cli\u003eMonitors Both Charge and Discharge\u003c\/li\u003e\n\u003cli\u003e3A Sense Capability with Internal Sense Resistor (MAX471)\u003c\/li\u003e\n\u003cli\u003eHigher Current-Sense Capability with External Sense Resistor (MAX472)\u003c\/li\u003e\n\u003cli\u003e100µA Max Supply Current\u003c\/li\u003e\n\u003cli\u003e18µA Max Shutdown Mode\u003c\/li\u003e\n\u003cli\u003e3V to 36V Supply Operation\u003c\/li\u003e\n\u003cli\u003e8-Pin DIP\/SO Packages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/Max-471-Volt-Current-Power-Pinouts_480x480.png?v=1589262056\" alt=\"ThinkRobotics | MAX471\" style=\"margin-right: 50px; 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High-side power-line monitoring is especially useful in battery-powered systems, since it does not interfere with the ground paths of the battery chargers or monitors often found in “smart” batteries.\u003c\/p\u003e\n\u003cp\u003eThe MAX471 has an internal 35mΩ current-sense resistor and measures battery currents up to ±3A. For applications requiring higher current or increased flexibility, the MAX472 functions with external sense and gain-setting resistors. Both devices have a current output that can be converted to a ground-referred voltage with a single resistor, allowing a wide range of battery voltages and currents.\u003c\/p\u003e\n\u003cp\u003eAn open-collector SIGN output indicates current-flow direction, so the user can monitor whether a battery is being charged or discharged. Both devices operate from 3V to 36V, draw less than 100µA over temperature, and include a 18µA max shutdown mode.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete High-Side Current Sensing\u003c\/li\u003e\n\u003cli\u003ePrecision Internal Sense Resistor (MAX471)\u003c\/li\u003e\n\u003cli\u003e2% Accuracy Over Temperature\u003c\/li\u003e\n\u003cli\u003eMonitors Both Charge and Discharge\u003c\/li\u003e\n\u003cli\u003e3A Sense Capability with Internal Sense Resistor (MAX471)\u003c\/li\u003e\n\u003cli\u003eHigher Current-Sense Capability with External Sense Resistor (MAX472)\u003c\/li\u003e\n\u003cli\u003e100µA Max Supply Current\u003c\/li\u003e\n\u003cli\u003e18µA Max Shutdown Mode\u003c\/li\u003e\n\u003cli\u003e3V to 36V Supply Operation\u003c\/li\u003e\n\u003cli\u003e8-Pin DIP\/SO Packages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/Max-471-Volt-Current-Power-Pinouts_480x480.png?v=1589262056\" alt=\"ThinkRobotics | MAX471\" style=\"margin-right: 50px; margin-left: 50px; float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/1108_480x480.gif?v=1592395576\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003ch5 style=\"text-align: left;\"\u003eResources\u003c\/h5\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/DATASHEET\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC1031\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheets\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/SAMPLE_CODE\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC1031\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSample Code\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003ch5\u003eTutorials\u003c\/h5\u003e\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/Pc2-r29LvW4\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e \u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/EdnB2O9iBtc\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\n\u003cdiv\u003e\u003c\/div\u003e"}
