STRW6750 Overview
Description
TERMINAL FUNCTIONS VCC (Pin 4) Start-up circuit The start-up circuit detects the VCC pin voltage (pin 4), and makes the control IC start and stop operation. The power supply of the control IC (VCC pin input) employs a circuit as shown in Figure 1.
Key Features
- Blocking (or intermittent) oscillation operation by reducing output voltage in the standby mode
- In addition to the standard quasi-resonant operation, a bottom-skip function is available for increased efficiency from light to medium load
- Soft-start operation at start-up
- Reduced switching noise (compared to conventional PWM hard-switching solution) with a step-drive function
- Built-in avalanche-energy-guaranteed power MOSFET (to simplify surge-absorption circuit; no VDSS derating is required)
- Overcurrent protection (OCP), overvoltage protection (OVP), overload protection (OLP), and maximum ON-time control circuits are incorp
