MAX17701

PRODUCTION

4.5V to 60V, Synchronous Step-Down Supercapacitor Charger Controller

Wide Input Voltage, High Efficiency, Switching Super Cap Battery Charger

Data Sheet (Rev. 6) Product Selection Table
Part Models
2
1ku List Price
Starting From $2.81
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Part Details

  • Optimized Feature Set for Supercapacitor Charging
    • ±4% Charging Current Regulation Accuracy
    • ±6% Charging Current Monitor Accuracy (ISMON)
    • ±1% Voltage Regulation Accuracy
    • Programmable CC Mode Charging Current (ILIM)
    • Wide 4.5V to 60V Input-Voltage Range
    • Adjustable Output-Voltage Range from 1.25V Up To (VDCIN - 2.1V)
    • 125kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization (RT/SYNC)
  • Reliable Operation in Adverse Environmental Conditions
    • Input Short-Circuit Protection (GATEN)
    • Safety Timer Feature (TMR)
    • Output Overvoltage Protection (OVI)
    • Cycle-by-Cycle Overcurrent Limit
    • Programmable EN/UVLO Threshold
    • Status Output Monitoring Using Open-Drain Outputs (FLG1 and FLG2)
    • Complies with CISPR 32 (EN55032) Class B Conducted and Radiated Emissions
    • Overtemperature Protection
    • Wide -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150°C Junction Temperature Range
MAX17701
4.5V to 60V, Synchronous Step-Down Supercapacitor Charger Controller
MAX17701: Typical Application Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 2

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Tools & Simulations

SIMPLIS Models 1

Evaluation Kits

MAX17701EVKITA

Evaluation Kit for the MAX17701 in 5V Output-Voltage Application

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Features and Benefits

  • Operates from a 7.1V to 60V Input Supply
  • 20A CC Mode Charging Current
  • 5V CV Mode Output Voltage
  • 350kHz Switching Frequency
  • Resistor-Programmable UVLO Threshold
  • Input Short Protection
  • CC Mode Safety Timer (TMR)
  • Cycle-by-Cycle Overcurrent Limit
  • External Clock Synchronization (RT/SYNC)
  • Charger Status Flags (FLG1, FLG2)
  • Charging Current Monitoring (ISMON)
  • Output Overvoltage Protection (OVI)
  • IC Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17701EVKITA# (EV kit) provides a proven design to evaluate the MAX17701 high-efficiency, high- voltage, Himalaya synchronous step-down DC-DC super- capacitor charger controller. The EV kit provides constant current (CC) mode and constant voltage (CV) modes to charge supercapacitors. The EV kit is designed to deliver 20A CC mode current (ICHGMAX) and 5V CV mode volt- age (VOUT) from a 7.1V to 60V input supply. The EV kit supports up to continuous 10A load connected in parallel to supercapacitors at the output. The EV kit is optimized for 24V nominal input voltage application. The switching frequency of the EV kit is set at 350kHz (fSW) for optimum efficiency and component size. The EV kit features a safety timer (TMR) to set the maximum allowed constant cur- rent (CC) mode charging time. For more details about the IC benefits and features, refer MAX17701 IC data sheet.

Applications

  • Backup Power for Industrial Safety
  • Building and Home Automation Backup Power
  • Peak Power Delivery and Energy Storage
  • Portable Medical Equipment
  • Ride-Through Last-Gasp Supplies
MAX17701EVKITA
Evaluation Kit for the MAX17701 in 5V Output-Voltage Application

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