SQ33604A
Description
The SQ33604A is a fully-featured PWM controller integrated high voltage start-up circuit that operates over a wide input range up to 100V. The SQ33604A adopts current mode, quasi constantfrequency control to avoid sub-harmonic oscillation with no need of slope compensation.
Key Features
- Integrated 100V HV Start-up circuit
- Flexible Topology：
- Primary-Side Regulated (PSR) Flyback (250kHz/400kHz Selectable)
- Secondary-Side Regulated (SSR) Flyback (Programmable Frequency)
- Precision Voltage Reference
- Output Diode Compensation in PSR Mode
- Source/Sink=0.5A/0.9A GATE Drivers
- Programmable Soft-start
- Programmable Line Under Voltage Lockout (UVLO) with Adjustable Hysteresis
- External Programmable Thermal Shutdown
