Analog Devices Inc. DC2896A-B Demo Circuit for LT8551
Analog Devices DC2896A-B Demo Circuit demonstrates a high-power boost converter and features the LT8551 phase expander with internal gate drivers. The DC2896A-B employs LTC3769, a single-phase boost controller, as the primary controller and LT8551 as the phase expander, which adds four more power phases. The increased number of power sections connected to the Analog Devices LT8551 results in a higher output power level without a corresponding increase in the design difficulty or a sacrifice of the LTC3769 primary controller features.
The input voltage range of DC2896A-B is from 10V to 46V, and the output is 48V. The maximum input current is 12A per power section, so the maximum input current of DC2896A-B is 60A. It’s reflected up to 30A of output current/power of 1440W at an input voltage of 24V. Correspondingly, the output current will drop to 14.5A, and output power will drop to 720W at a 12V input voltage to keep the input current at the same level of 60A. Both values will increase at higher voltages. The input current value can be increased above 60A if heat sinks are installed.
Features
- 10V to 46V input voltage range
- 48V typical output voltage
- 60A maximum input current
- 98% typical efficiency
- 250kHz minimum switching frequency
Applications
- High-current distributed power systems
- Telecom, datacom, and storage systems
- Industrial and automotive
Equipment Setup
Resources
發佈日期: 2020-06-16
| 更新日期: 2024-10-11