NCP1399AA

NCP1399AA 14 pin

14-pin NCP1399AA chip, suitable for Avalon power supply and hash boards, 600V driver, is a current mode resonant controller.

NCP1399AA is a high-performance current mode controller for half-bridge resonant converters. The controller implements a 600 V gate driver, simplifies the layout and reduces the number of external components. The built-in Brown-Out input function makes it easy to implement the controller in all applications. In applications that require a PFC front stage, NCP1399 has a dedicated output to drive the PFC controller. This function, together with the dedicated skip mode technology, further improves the light load efficiency of the entire application. This NCP1399 provides a series of protection functions, which can operate safely in any application. This includes: overload protection, over-current protection against hard switching cycles, power-down detection, open-circuit detection of optocoupler, automatic no-load time adjustment, over-voltage (OVP) and over-temperature (OTP) protection.

Feature：

• High frequency operation from 20 kHz to 750 kHz

• Current mode control scheme

•Automatic dead zone with maximum dead zone clamp

• Dedicated startup sequence can realize the stability of fast resonance tank

• Skip mode operation can improve light load efficiency

• Non-mode operation with very low no-load power consumption

•Latch or automatically restore overload protection

• Latch or automatic recovery output short circuit protection

• Latch input for severe fault conditions, such as OVP or OTP

• Detuned switch protection

• Open loop feedback protection

• Precise power failure protection

• PFC-level operation control according to load conditions

• Starting current source with extremely low leakage current

•Dynamic self-powered (DSS) operation in shutdown mode or failure mode

• Pins are fixed to adjacent pins/open-circuit pins fail-safe

• These are lead-free devices

Typical Application：

• Adapter and offline battery charger

• Flat panel display power converter

• Calculate power

• Industrial and medical power supply