Technical Specifications
Parameters and characteristics for this part
| Specification | STEVAL-A6983CV1 |
|---|---|
| Board Type | Fully Populated |
| Current - Output | 3 A |
| Main Purpose | DC/DC, Step Down |
| Outputs and Type | Non-Isolated |
| Outputs and Type | 1 |
| Regulator Topology | Buck |
| Supplied Contents | Board(s) |
| Utilized IC / Part | A6983C |
| Voltage - Input [Max] | 38 V |
| Voltage - Input [Min] | 3.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Description
General part information
STEVAL-A6983CV1 Series
The A6983I is a device specifically designed for isolated buck topology. The primary output voltage can be accurately adjusted, whereas the isolated secondary output is derived by using a given transformer ratio. No optocoupler is required. The primary sink capability up to -4.5 A (even during soft-start) allows a proper energy transfer to the secondary side, as well as enables a tracked soft-start of the secondary output. The control loop is based on a peak current mode architecture and the device operates in forced PWM. The 390 ns blanking time filters oscillations, generated by the transformer leakage inductance, makes the solution more robust.
Both the compact QFN-16 (3x3 mm) package and the internal compensation of the A6983I help minimizing the design complexity and size.
The switching frequency can be programmed in the 200 kHz to 1 MHz range with an optional spread spectrum for improved EMC.
Documents
Technical documentation and resources