NiQor - High Voltage Non-Isolated DC-DC Converters

Industrial Non-Isolated DC-DC Converters - High Voltage

High Voltage, Non-Isolated DC-DC Converters for Industrial Applications

The high input voltage NiQor® family of DC-DC converters offers unique solutions for converting high‑powered, variable voltages to a wide range of output voltages. The converter is a non-isolated buck‑boost regulator, which employs synchronous rectification to achieve extremely high conversion efficiency. These products are suitable for use in Intermediate Bus Architecture, or to provide a regulated output voltage from a variable voltage source such as a battery. They can be configured to ‘buck’ the input voltage down or ‘boost’ the input voltage up using a single external resistor.

  • Operational Features
    • Ultra-high efficiency up to 96%
    • Wide input voltage ranges:
    • 9-20 V (NQ20); 9-40 V (NQ40); 9-60 V (NQ60); 9-90 V (NQ90)
    • Buck or Buck/Boost Mode available
    • Maximum input/output currents up to 55 A
    • Suitable for use in Intermediate Bus Architectures
    • On-board input and output filtering
    • No minimum load requirement
    • -40°C to +100°C Operating Temperature
    • Remote sense and wide output voltage trim
  • Protection/Control Features
    • Input under-voltage lockout (UVLO)
    • Output current limit (OCP) and short circuit protection
    • Output over-voltage protection (OVP)
    • Thermal shutdown (OTP)
    • Output voltage trim
  • Battery Charging
    • Provides the power conversion platform for battery charging
    • Output current limit is externally controlled for constant-current charging
    • Current can be set with an external resistor or an active circuit
    • Current analog signal provided for instrumentation and control functions
    • Ideal diode output stage with zero back-drive currents prevents discharge of battery when not charging
    • Output voltage set-point is independently controlled through trim pin
    • Unit will smoothly transition between current and voltage modes as charging cycle needs charge