In repair scenarios where the protection circuit prevents an inverter from turning on (often due to aging lamps), technicians sometimes "disable" the protection for diagnostic purposes. While specific pin-outs for disabling the LX1692 vary by application, common methods for similar controllers include grounding specific sense pins or using resistors to bypass fault signals. Bypassing protection features can lead to transformer failure or fire hazards and should only be done for testing.
Old CCFL bulbs require higher voltage to "strike," which can trip the over-voltage protection. lx1692 protection pin
When designing a system with the LX1692 PMIC, there are several design considerations to keep in mind: In repair scenarios where the protection circuit prevents
Worn CCFL lamps often cause the protection circuit to shut the system down immediately after ignition. lx1692 protection pin