UCC38083DR

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UCC38083DR AC/DC converter is a low standby power off-line switching power supply controller. It comes with a comprehensive feature set and offers lowest possible quiescent current and standby power from no-load and low load conditions with ultra-low diode conduction loss. UCC38083DR integrates many protection features for the power supply, such as load current limiting, open loop protection, and under-voltage lockout (UVLO) protection.

UCC38083DR operates by using a continuous conduction mode (CCM) pulse-width modulation (PWM) technique, which provides constant power to the load from no-load and light load conditions. This operating mode provides constant frequency and waveform output while switching on the power loss of the power supply. The output ripple waveforms can be adjusted by the onboard resistors, which make the UCC38083DR suitable for a wide range of power applications.

UCC38083DR can be easily integrated into any low power AC/DC converters. It comes in a space saving TSSOP-6 package, which makes it suitable for miniaturized power conversion designs. Its small footprint and low cost makes it attractive for appliance, handheld and mobile device power supplies, LED drivers, and many other applications.

UCC38083DR has a wide operating power range for AC/DC converter applications ranging from 92V to 264V. It offers a wide range of operating frequencies from 38kHz to 400kHz and a wide duty cycle from 0.5% to 99.5%. The adjustable slope compensation feature offers better current control to the output and can be used to increase output power quality in systems with high noise or long trace inductor setups. The adjustable soft switching feature helps to minimize EMI emission in the system.

UCC38083DR has multiple protection features to ensure the power separated protection of the output and the power supply. It offers over-voltage protection (OVP), open loop protection (OLP), over-current protection (OCP), and under-voltage lockout (UVLO). These protections make UCC38083DR suitable for reliable operation in harsh conditions, such as high EMI/EMC conditions, high temperature, and current faults.

UCC38083DR is a versatile low power offline converter for universal applications, such as charging applications, lighting applications, and small appliance applications. Its wide operating power range, low quiescent current and standby power, wide operating frequency range, and multiple protection features make the UCC38083DR an ideal choice for AC/DC power conversion designs.

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