Description
D3806 6 A Digital CC-CV Buck-Boost Converter
This D3806 digital DC supply can step voltage up or down and lets you set a constant-voltage (CV) target and limit output current in constant-current (CC) mode. Its display and controls can show voltage, current, power and capacity. The source describes use in battery charge/discharge and solar-energy applications; this does not by itself confirm compatibility with a particular battery chemistry or charging profile. Check the module datasheet and the battery manufacturer’s requirements.
Features
- Stores up to 10 groups of settings for later recall
- Microprocessor-based voltage and current adjustment
- Configurable output state after power-up
- Button to save current settings
- OUT, CV and CC indicators for operating status
- Four-digit display for voltage, current, power and capacity, with automatic or manual display modes
- Constant-voltage and constant-current operation, with input voltage higher or lower than output voltage
Technical specifications
- Input voltage: 10–40 V DC
- Input current: 0–8 A
- Output voltage: 0–38 V DC
- Output current: 0–6 A
- Display resolution: voltage 0.01 V; current 0.001 A; power 0.001 W; capacity 0.001 Ah
- Maximum stated conversion efficiency: 80%
- Switching frequency: 150 kHz
- Maximum stated output ripple: 50 mV
- Operating temperature: −40 to +85 °C (as specified by the source)
- Input reverse-polarity protection: none
- Short-circuit protection: yes (as specified by the source)
- Thermal shutdown: integrated
- Dimensions: 10 × 8 × 2.9 cm
Use and safety
Observe input polarity; reverse-polarity protection is not provided. Use a suitably rated input supply and wiring, provide adequate cooling, and verify the output settings before connecting a load. Although short-circuit protection is specified, do not intentionally short the output. For battery applications, select the correct chemistry-specific charging voltage/current and use appropriate monitoring; this module’s CC/CV function alone does not ensure safe charging. Datasheet
