Product Details
Description
The LinkSwitch-II dramatically simplifies low power CV/CC charger designs by eliminating an optocoupler and secondary control circuitry. The device introduces a revolutionary control technique to provide very tight output voltage and current regulation, compensating for transformer and internal parameter tolerances along with input voltage variations.
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/CC Converters
- Eliminates Optocoupler and all secondary CV/CC control circuitry
 - Eliminates all control loop compensation circuitry
 
LNK632DG
- Dramatically simplifies CV converters
 - Enables Clampless™ designs when an external bias circuit is used
 
Advanced Performance Features
- Compensates for transformer inductance tolerances
 - Compensates for input line voltage variations
 - Compensates for cable voltage drop (LNK61X series & LNK632)
 - 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 power delivered by >95% for output short circuit and 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
 
EcoSmart® – Energy Efficient
- Easily meets all global energy efficiency regulations
 - No-load consumption <200 mW at 230 VAC and down to below 30 mW with optional external bias
 - On/Off control provides constant efficiency down to very light loads – ideal for CEC and ENERGY STAR 2.0 regulations
 - No current sense resistors – maximizes efficiency
 
Green Package
- Halogen free and RoHS compliant package
 
Applications
- Chargers for cell/cordless phones, PDAs, MP3/portable audio devices, adapters
 - LED drivers, etc.
 
Specifications
| Output Power (Max) - Open Frame, 230V | 6.10 W | 
| Breakdown Voltage | 700 V | 
| IC Package | SMD-8C | 
| Mounting Type | Surface Mount | 
| Temperature - Operating (Min) | -40 °C | 
| Temperature - Operating (Max) | 150 °C | 
