Description
A LinkSwitch-HP device monolithically integrates a controller and high-voltage power MOSFET into one package.. It contains a newly created analogue control system that provides primary-side regulated (PSR), continuous conduction mode (CCM), power supply up to 90 W without the efficiency restriction of DCM or audible noise. With the ability to operate in several modes, it features an improved peak current mode PWM control method. The device enters multi-cycle modulation (MCM) with a fixed peak current of 25% of the programmed current limit for COMPENSATION pin voltages lower than VC(MCM) (typ. 1.25 V).Several innovative improvements have been added to the peak current mode control to allow primary side regulated CCM operation with no instability.
Features
- External current limit selection.
- Optional programmable shutdown delay time extension
- Optional remote On/Off. Optional fast AC reset.
- Primary-side sensed output overvoltage protection (OVP) .
- Lost regulation protection during output overload or short-circuit (auto-restart). Internal current limit over line compensation for constant overload power over the line.
- High-voltage bus overvoltage sense (line OV) for extended line surge withstand.
- High-voltage bus Undervoltage sense (line UV) for brown-in/ out protection. Accurate over-temperature protection (OTP).
- Output OVP/OCP/OTP shutdown type selection (hysteretic/ latching).
- Optional external latching shutdown input (current threshold) Cycle-by-cycle current limit control.
Specification
| Model | LNK6666 |
| Type | MOSFET |
| Output Power | 60w |
| Operating Supply Current | 1.6mA |
| Output Current | 15μA |
| Packaging type | DIP |
| Switching Frequency | 120kHZ to 136kHZ |
| Country of Origin | China |