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