NCP1365XS1GEVB: Low Power Offline Constant Current & Constant Voltage Primary Side PWM Current-Mode Controller with High Voltage Startup Current Source Evaluation Board
The NCP1365XS1GEVB Evaluation Board is designed to efficiently evaluate the NCP1365, which offers a new solution targeting output power levels from a few watts up to 20 W in a universal-mains flyback application. Thanks to a novel method this new controller eliminates the need for a secondary feedback circuitry (typically an opto-coupler and TL431 reference) while achieving excellent line and load regulation. The NCP1365 operates in valley lockout quasi-resonant peak current mode control mode at high load to provide high efficiency. When the power on the secondary side starts to diminish, the controller automatically adjusts the duty-cycle then at lower load the controller enters in pulse frequency modulation at fixed peak current with a valley switching detection. This technique allows keeping the output regulation with tiny dummy load. Valley lockout at the first 4 valleys prevent valley jumping operation and then a valley switching at lower load provides high efficiency.
Evaluation/Development Tool Information
| Product | Status | Compliance | Short Description | Parts Used |
|---|---|---|---|---|
| NCP1365XS1GEVB | Active | Pb-free | Low Power Offline Constant Current & Constant Voltage Primary Side PWM Current-Mode Controller with High Voltage Startup Current Source Evaluation Board | NCP1365AABCYDR2G NCP1365BABCYDR2G |
Technical Documents
| Type | Document Title | Document ID/Size | Rev |
|---|---|---|---|
| Eval Board: BOM | NCP1365XS1GEVB Bill Of Materials (ROHS Compliant) | NCP1365XS1GEVB_BOM_ROHS.pdf - 61 KB | 0 |
| Eval Board: Gerber | NCP1365XS1GEVB Gerber Layout Files (Zip Format) | NCP1365XS1GEVB_GERBER.zip - 28 KB | 0 |
| Eval Board: Test Procedure | NCP1365XS1GEVB Test Procedure | NCP1365XS1GEVB_TEST_PROCEDURE.pdf - 155 KB | 0 |
| Eval Board: Schematic | NCP1365XS1GEVBGEVB Schematic | NCP1365XS1GEVBGEVB_SCHEMATIC.pdf - 81 KB | 0 |
| Video | Low Power Offline Constant Current & Constant Voltage Primary Side PWM Current-Mode Controller - NCP1365XS1GEVB | WVD17551/D |
- NCP1365XS1GEVB BOM ROHS NCP1365XS1GEVB
- NCP1365XS1GEVB GERBER NCP1365XS1GEVB
- NCP1365XS1GEVB TEST PROCEDURE NCP1365XS1GEVB
- NCP1365XS1GEVBGEVB SCHEMATIC NCP1365XS1GEVB
