LinkSwitch-CV

Dramatically simplifies low power power supply designs by eliminating an optocoupler and secondary control circuitry.

Typical Application/Performance – Not a Simplified Circuit (a) and Output Characteristic Envelope (b).

Description

The LinkSwitch-CV dramatically simplifies CV power supply design with tight CV requirements and by eliminating an optocoupler and secondary control circuitry. The device introduces a revolutionary control technique to provide very tight output voltage regulation, along with input voltage variations and temperature.

The device incorporates a 700 V power MOSFET, a novel On/Off control state machine, a high voltage switched current source for self biasing, frequency jittering, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry onto a monolithic IC.

Product Highlights

Dramatically Simplifies CV Converters

Eliminates optocoupler and all secondary CV control circuitry
Eliminates bias winding supply – IC is self biasing

Advanced Performance Features

Compensates for external component temperature variations
Very tight IC parameter tolerances using proprietary trimming technology
Frequency jittering greatly reduces EMI filter cost
Even tighter output tolerances achievable with external resistor selection/trimming

Advanced Protection/Safety Features

Auto-restart protection reduces delivered power by <95% for output short circuit and all control loop faults (open and shorted components)
Hysteretic thermal shutdown – automatic recovery reduces power supply returns from the field
Meets HV creepage requirements between Drain and all other pins, both on the PCB and at the package

Applications

DVD/STB
Adapters
Standby and auxiliary supplies
Home appliances, white goods and consumer electronics
Industrial controls

Output Power (Watts)
PRODUCT¹	85-265 VAC
PRODUCT¹	Adapter²	Open Frame³
LNK623PG/DG	5.0	6.0
LNK624PG/DG	5.5	6.5
LNK625PG/DG	6.5	8.0
LNK626PG/DG	8.5	10.0

Notes:

Packages: D: SO-8C, P: DIP-8C.
Minimum continuous power in a typical non-ventilated enclosed adapter measured at +50 °C ambient .
Maximum practical continuous power in an open frame design with adequate heatsinking, measured at 50 °C ambient.

產品資料
Application Note
Package Information
Data Sheet

Reference Designs
RDKs include a working power supply, sample devices, unpopulated pcb, data sheet, comprehensive engineering report, PI Expert design software and other related documentation.
RDK-201	LinkSwitch-CV Reference Design Kit

Design Ideas
DI-201	6 W universal input adapter
DI-198	10 W universal input power supply for DVD player

EcoSmart^® - Energy-Efficiency Technology

Easily meets all global energy efficiency regulations with no added components
No-load consumption <200 mW at 230 VAC and down to below 70 mW with optional external bias
On/Off control provides constant effi ciency down to very light loads – ideal for mandatory CEC and ENERGY STAR 2.0 regulations
No primary or secondary current sense resistors – maximizes efficiency

Green Package

Halogen free and RoHS compliant package

FROM: Company Name: Aunytor Electronic (HK) Co.,Ltd
            Contact Person: liao
            Skype: Aunytor
            Email: 2885745253@qq.com