Telecom 48 V Isolated DC-DC Converters

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Product Details

Single and dual output converters are composed of next-generation, board-mountable, isolated, fixed switching frequency DC-DC converters that use synchronous rectification to achieve extremely high power conversion efficiency. The power dissipated by the converter is so low that a heatsink is not required, which saves cost, weight, height, and application effort. All of the power and control components are mounted to the multi-layer PCB substrate.

Operational Features

Fixed frequency switching, low output noise
No minimum load requirement
Full feature optional on some models
Industry standard pin-out configurations and standard footprints
Output Voltage Set Point: ±1.0% to 1.5%
Output Voltage Trim Range: +10% to -20%
Output Voltage Ripple: <1% of Vout (typ.) pk-pk
Input Ref. Ripple Current <1% of Iin (typ.) rms
Switching Frequency: 200 – 300 kHz
Input-to-Output Isolation: Up to 2,250 Vdc

Control Features

Input under-voltage lockout (UVLO)
Output current limit (OCP) and short circuit protection
Output over-voltage protection (OVP)
Active back bias limit prevents damage to converter
Thermal shutdown (OTP)
Back-drive protection (starts into pre-biased load)
On/Off control referenced to input side
Remote sense
Output voltage trim (industry std. trim equations)