Cissoid EREBUS
CISSOID at NAC Semi · High-Temperature DC-DC Converter Technology
EREBUS® Step-Down DC-DC Converter Technology
EREBUS® is CISSOID's platform for high-temperature, non-isolated step-down DC-DC converters. Its synchronous buck design combines the CHT-MAGMA PWM controller, CHT-HYPERION half-bridge driver and PLANET family power MOSFETs, with an additional short-circuit protection stage.
Two technology kits cover 12–40 V and 12–50 V inputs. Each includes a 5 V, 2 A evaluation board, documentation and a user license. The design can be adapted for higher output current by replacing MOSFETs: up to 4 A for either version, or 8 A for EREBUS-40.
EREBUS® TECHNOLOGY
Step-Down DC-DC
12–40 V / 12–50 V input
5 V · 10 W max.
Typical Performance
Evaluation-board specifications from the EREBUS product brief.
- Evaluation-board ambient temperature
- −55°C to +175°C (Ta)
- Active-component junction temperature
- −55°C to +225°C (Tj)
- Input voltage options
- EREBUS-40: 12 to 40 V; EREBUS-50: 12 to 50 V
- Evaluation-board output
- 5 V nominal; 0 to 2 A
- Design scalability
- 4 A for either version; up to 8 A for EREBUS-40, with MOSFET changes
- Efficiency
- Up to 85% at maximum power at room temperature; depends on operating conditions
- Switching frequency
- 230 kHz default oscillator
- Control and protection
- Soft start; clock synchronization input and output; short-circuit protection
Refer to the EREBUS product brief (PDF, opens in a new tab) for test conditions and operating limits.
Ordering Information
Compare the two EREBUS technology kits below. Select a part number to search the NAC store.
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| Type | Product Brief | ||||
|---|---|---|---|---|---|
| LIC-EREBUS-40 | Technology kit | 12 to 40 V | 5 V | Board, documentation, license | |
| LIC-EREBUS-50 | Technology kit | 12 to 50 V | 5 V | Board, documentation, license |
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Engineering & distribution support
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