The demo board input range is 36V to 80V. The output is optimized for 48V at 5A, with the output current limit set at 7A. (The circuit will operate with lower input voltage than 36V if load current is reduced).
This document is a user manual for the DC1924A demonstration board, which features the LT8705 synchronous 4-switch buck-boost DC/DC controller. The board is designed to operate with input voltages from 36V to 80V and delivers an optimized output of 48V at 5A, with a current limit of 7A. It includes integrated regulators for input and output voltage and current, and supports bidirectional operation in forced continuous mode. The manual provides setup instructions, performance data, and a detailed parts list for the board's components.
| Input Voltage Range | 36V to 80V |
|---|---|
| Output Voltage | 48V |
| Output Current Limit | 7A |
| Switching Frequency | 200 kHz |
The input voltage range is 36V to 80V.
The output is optimized for 48V at 5A, with a current limit set at 7A.
The operating mode is determined through the MODE pin and can be set to discontinuous mode, forced continuous mode, or Burst Mode® operation.