Diodes - AP3108L - High-Voltage PWM Controller

Diodes – AP3108L – High-Voltage PWM Controller

The AP3108L is a Current Mode PWM controller with HV-start up, optimized for off-line power supplies that require ultra-low standby power, high-power density and comprehensive protection. Operating with secondary-side USB- PD/Rapid charge controllers, it provides versatile solution applications which require a wide dynamic output power range.

The AP3108L integrates the high-voltage start-up function through its HV pin which removes the external start-up resistor and reduces standby loss. Its HV pin also realizes X-CAP discharge function, saving power when an X-CAP is connected to a system by automatically discharging it when the AC line voltage is off.

The AP3108L integrates a VCC LDO, improving the AP3108L accuracy in applications that have wide output voltage ranges.

The AP3108L provides versatile system protections function such as secondary side OVP, secondary side UVP, constant output current limit, cycle-by-cycle primary current limit, brown-out protection, programmable external OTP, etc.

It is available in the small footprint SSOP-9 package.

Advantages

Multiple modes of operation: 65kHz CCM PWM Mode, Green-Mode and Burst Mode optimizing efficiency across all load levels
High voltage startup/ X-cap discharge function achieves ultra-low standby power loss
Internal 100V LDO regulates Vcc improves performance, reduces BOM count and simplifies systemdesign
Constant output current limitation maintains same overcurrent limit over a wide output voltage range
Precise Output overvoltage/undervoltage protection(SOVP/SUVP) improves the OVP/UVP performance
AC input brown-out protection(BNO) Prevents BNO system damage due to ultra-low line condition

Applications