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CX7508 is a high performance offline PWM power switch for low power AC/DC charger and adapter applications.It operates in primary-side sensing and regulation.Consequently, opto-coupler and TL431 could be eliminated. High Precision Constant Voltage (CV) and Constant Current (CC) control are integrated as shown in the figure below. In CC control, the current a.
including Cycle-by-Cycle current limiting, VDD Over Voltage Protection (VDD OVP), short circuit protection, built-in leading edge blanking, VDD under voltage lockout (UVLO), OTP, etc. High precision constant voltage (CV) and constant current (CC) can be achieved by CX7508. CX7508 is offered in DIP7 package.
FEATURES
■ ± 5% Constant Voltage Regulation and Current Regulation at Universal AC Input
■ Primary Side Regulation (PSR) Without TL431 and Opto-coupler
■ No Need for Control Loop Compensation
■ Programmable CV and CC Regulation
■ Multi-Mode PWM/PFM Operation
■ Output Short Load Protection .
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|---|---|---|---|---|
| 1 | CX7501 |
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| 2 | CX7509 |
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