Description

The Himalaya series of voltage regulator ICs, power modules,and chargers enable cooler, smaller, and simplerpower supply solutions. The MAX17701 is a high efficiency,high voltage, Himalaya synchronous, step-down, supercapacitorcharger controller designed to operate overan input-voltage range of a 4.5V to 60V. The MAX17701operates over a -40°C to +125°C industrial temperaturerange and charges a supercapacitor with a ±4% accurateconstant current. After the supercapacitor is charged, thedevice regulates the no-load output voltage with ±1% accuracy.The output voltage is programmable from 1.25Vup to (VDCIN - 2.1V).The MAX17701 supercapacitor charger controller is designedto provide a holistic application solution requiringbackup energy storage with a precise charging capability.The device uses an external nMOSFET to provide inputsupply-side short-circuit protection; thus, preventing supercapacitordischarge.The MAX17701 provides a safety timer (TMR) feature toset the maximum allowed constant current (CC) modecharging time. The device features an uncommitted comparator,which can be used to detect an output overvoltageevent (OVI) and prevent the supercapacitor fromovercharging. The MAX17701 is available in a 24-pin4mm x 4mm TQFN package with an exposed pad.ApplicationsPeak Power Delivery and Energy StorageBackup Power for Industrial SafetyRide-Through Last-Gasp SuppliesPortable Medical EquipmentBuilding and Home Automation Backup Power