Industrial non-isolated DC-DC converter - High Voltage

High Voltage Non-isolated DC-DC Converter for Industrial Applications

The NiQor® family of DC-DC converters for high input voltage provide the only solution for converting high power, variable voltage to a wide range of output voltages. This converter is a non-isolated step-down/step-up regulator that uses synchronous rectification to achieve extremely high conversion efficiency. These products are suitable for intermediate bus architectures or for providing a stable output voltage from a variable voltage source (such as a battery). They can be configured to either step down the input voltage or step up the input voltage using a single external resistor. 

Operating Characteristics An extremely high efficiency of up to 96%

 

Wide input voltage range: 

9-20 V (NQ20); 9-40 V (NQ40); 9-60 V (NQ60); 9-90 V (NQ90) 

The lowering blood pressure or lowering/raising pressure mode is available. 

The maximum input/output current can reach up to 55 A. 

Applicable to the intermediate bus architecture 

Built-in input and output filtering 

No minimum load requirement 

Working temperature range from -40°C to +100°C 

Remote sensing and wide output voltage adjustment 

Protection/Control Function

Input Under-Voltage Lockout (UVLO) 

Output current limit (OCP) and short circuit protection 

Output overvoltage protection (OVP) 

Thermal shutdown (OTP) 

Output voltage adjustment 

Battery charging

Provide a power conversion platform for battery charging 

The output current limit is externally controlled and is used for constant current charging. 

The current can be set through external resistors or active circuits. 

Provide the current analog signals for the instrumentation and control functions 

An ideal diode output stage with zero reverse driving current can prevent battery discharge when not being charged. 

The output voltage setting point is independently controlled by adjusting the pins. 

Since the charging cycle involves charging, the device will smoothly transition between current and voltage modes.