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LNK4302S

Power Integrations
Part Number LNK4302S
Manufacturer Power Integrations
Description CV/CC Switcher
Published Nov 21, 2019
Detailed Description LinkSwitch-4 Family Energy-Efficient, Accurate Primary-Side Regulated CV/CC Switcher for Adapters and Chargers Product...
Datasheet PDF File LNK4302S PDF File

LNK4302S
LNK4302S

Overview
LinkSwitch-4 Family Energy-Efficient, Accurate Primary-Side Regulated CV/CC Switcher for Adapters and Chargers Product Highlights Dramatically Simplifies CV/CC Converters • Eliminates optocoupler and all secondary CV/CC control circuitry • Eliminates all control loop compensation circuitry Advanced Performance Features • Dynamic base drive technology provides flexibility in choice of BJT transistor by dynamically optimizing BJT switching characteristics • Extends RBSOA of BJT • Dramatically reduces sensitivity to BJT gain • Compensates for input line voltage variations • Compensates for cable voltage drop • Compensates for external component temperature variations • Very accurate IC parameter tolerances using proprietary trimming technology • Frequency up to 65 kHz to reduce transformer size • The minimum peak current is fixed to improve transient load response Enhanced Performance Features • Easy start for starting into capacitive loads (LNK4114D, LNK4115D) • Constant power for high current start-up (LNK4214D, LNK4215D) • 13003 drive improved efficiency with 13003 BJT’s (LNK4302S, LNK4322S) Advanced Protection/Safety Features • Single fault output overvoltage and short-circuit • Over-temperature protection • Active clamp EcoSmart™– Energy Efficient • Meets DoE 6 and CoC V5 2016 via an optimized quasi-resonant switching PWM/PFM control • No-load consumption of <30 mW at 230 VAC input Green Package • Halogen free and RoHS compliant package Applications • Chargers for cell/cordless phones, PDAs, MP3/portable audio devices, adapters, networking, etc.
Description The LinkSwitchTM-4 family of ICs dramatically simplifies low power CV/CC charger design by eliminating an optocoupler and secondary control circuitry.
The LinkSwitch-4 family adaptive BJT drive technology uses combined base and emitter switching to boost switching performance and deliver higher efficiency, wider Reverse Bias Safe Operating Area (RBSOA) margin and the flexibility to accommodate a wide range ...


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