IC OFFLINE SWIT UVLO HV TO220

TOP242YN

Manufacturer Part NumberTOP242YN
DescriptionIC OFFLINE SWIT UVLO HV TO220
ManufacturerPower Integrations
SeriesTOPSwitch®-GX
TypeOff Line Switcher
TOP242YN datasheet
 


Specifications of TOP242YN

Output IsolationIsolatedFrequency Range66 ~ 132kHz
Voltage - Output700VPower (watts)22W
Operating Temperature-40°C ~ 150°CPackage / CaseTO-220-7 (Formed Leads), 5 Leads
Output Voltage12 VInput / Supply Voltage (max)265 VAC
Input / Supply Voltage (min)85 VACDuty Cycle (max)83 %
Switching Frequency132 KHzSupply Current1.6 mA
Operating Temperature Range- 40 C to + 150 CMounting StyleThrough Hole
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther names596-1067-5
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TOP242-250
Key Application Considerations
TOPSwitch-II vs. TOPSwitch-GX
Table 4 compares the features and performance differences
between TOPSwitch-GX and TOPSwitch-II. Many of the new
features eliminate the need for additional discrete components.
Function
TOPSwitch-II TOPSwitch-GX Figures
Soft-Start
N/A*
External Current
N/A*
Limit
DC
67%
MAX
Line Feed-Forward
N/A*
with DC
Reduction
MAX
Line OV Shutdown
N/A*
Line UV Detection
N/A*
Switching Frequency 100 kHz ±10%
Table 4. Comparison Between TOPSwitch-II and TOPSwitch-GX (continued on next page). *Not available
26
O
11/05
Other features increase the robustness of design, allowing cost
savings in the transformer and other power components.
10 ms
Programmable 100%
11,20,21,
to 30% of default
24,25,27,
current limit
28,34,35,
38,39
78%
7
78% to 38%
7,11,17,
26,27,28,
31,40
Single resistor
11,17,19,
programmable
26,27,28
31,33,40
Single resistor
11,17,18,
programmable
26,27,28,
31,32,40
132 kHz ±6%
13,15
TOPSwitch-GX
Advantages
• Limits peak current and voltage
component stresses during start-
up
• Eliminates external components
used for soft-start in most
applications
• Reduces or eliminates output
overshoot
• Smaller transformer
• Higher efficiency
• Allows power limiting (constant
overload power independent of
line voltage)
• Allows use of larger device for
lower losses, higher efficiency
and smaller heatsink
• Smaller input cap (wider dynamic
range)
• Higher power capability (when
used with RCD clamp for large
V
)
OR
• Allows use of Schottky secondary
rectifier diode for up to 15 V
output for high efficiency
• Rejects line ripple
• Increases voltage withstand
capability against line surge
• Prevents auto-restart glitches
during power down
• Smaller transformer
• Below start of conducted EMI
limits