AP3102L

Preliminary Datasheet GREEN MODE PWM CONTROLLER General Description Features AP3102/V/L The AP3102/V/L series is a green-mode PWM controller with low start-up current. At normal operation, the switching frequency is externally programmable and trimmed to tight range, the frequency dithering technique is also equipped to improve the EMI performance. When the load is very low or zero, the IC enters green mode and skip mode to minimize switching loss. In skip mode, the PWM switching frequency is about 20kHz to avoid the audible noise and reduce the standby loss. The AP3102/V/L series features a lot of functions such as the Leading-Edge Blanking (LEB) of the current sensing, internal slope compensation, line compensation, and several protection functions including cycleby-cycle current limit (OCP), over voltage protection (VCC or line voltage), OTP, OLP and brownout protection. The AP3102/V/L series provides 3 different versions with optional protection functions. AP3102 has external trigger latch shutdown only (VOVP and OLP are auto recoverable). AP3102V supports both VOVP and external latch shutdown. AP3102L provides latch shutdown control for VOVP, OLP and external trigger. This IC is available in SOIC-8 and DIP-8 packages. · Bi-CMOS Process with Excellent Performance · Very Low Start-up Current: 5µA typical · Current Mode Control · Non-audible-noise Green Mode Control · Frequency Foldback for High Average Efficiency · Internal Slope Compensation · Programmable Brownout P...