LNK520GN Power Integrations, LNK520GN Datasheet - Page 12

• Manufacturer Part Number: LNK520GN
• Description: IC SWIT OCP CV/CC HV 8SMD
• Manufacturer: Power Integrations
• Series: LinkSwitch®r

Specifications of LNK520GN

• Output Isolation: Isolated
• Frequency Range: 24 ~ 49.5kHz
• Voltage - Output: 700V
• Power (watts): 5.50W
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 8-SMD Gull Wing, 7 Leads
• Output Voltage: 5.6 V
• Input / Supply Voltage (max): 265 VAC
• Input / Supply Voltage (min): 85 VAC
• Duty Cycle (max): 80 %
• Switching Frequency: 42 KHz
• Supply Current: 0.75 mA
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• For Use With: 596-1006 - KIT DESIGN ACCELERATOR ADAPTER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 2. Comparison of LNK500 and LNK520.
12
Considerations
LNK520
E
2/05
Summary
Family
• Lowest cost CV/CC implementation
• Source is connected to the switching
• Fast switching speeds minimize losses
• Source PCB copper heatsink connected
• No bias winding required – simplest
• Perfect for linear replacement in
The LNK500 is recommended for cost
sensitive applications in larger systems with
existing EMI filtering (e.g. white goods).
node – simple circuit configuration & low
component count
for best efficiency
to switching node – size should be
minimized to limit noise
circuit configuration
applications where additional system
EMI shielding or filtering exists
Figure 13. Comparison of LNK520 and LNK500 Showing an
30.0
Approximate 5 dBµV Reduction in Radiated EMI.
QP: LNK500
AV: LNK500
LNK500
Frequency (MHz)
AV: LNK520
QP: LNK520
100.0
• Very low cost CV/CC implementation
• Source connected to quiet low-side
• Optimized switching speed – reduces
• Source PCB copper heatsink connected
• Bias winding required – allows higher
• Perfect for systems where no additional
The LNK520 is recommended for both
stand-alone charger and adapter
applications, and larger systems where
EMI reduction is required (e.g. emergency
lighting).
primary return - easy layout & low noise
(low-side configuration only)
radiated EMI by up to 5 dB (Figure 13)
to primary return – area can be
maximized for higher power without noise
(low-side configuration only)
V
configuration only)
filtering or shielding exists
OR
, increasing power capability (low-side
200.0
LNK520