Description
MIL-COTS High Voltage Non-Isolated DC-DC Converters
Featuring adjustable output voltage and output current
The high input voltage non-isolated DC-DC converters offer 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 Architectures, 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 with a single external setpoint resistor.
Operational Features
- Ultra-high efficiency up to 97%
- Wide input voltage ranges: 9-60 V (28V); 9-90 V (28VE)
- Buck/Boost Mode available
- Maximum input/output currents up to 40 A
- Suitable for use in Intermediate Bus Architectures
- On-board input and output filtering
- No minimum load requirement
- -55°C to +100°C Operating Temperature
- Remote sense and wide output voltage trim (Half-brick only)
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
- Key feature of Trimmable Current Limit
- 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 change
