TOP234GN Power Integrations, TOP234GN Datasheet - Page 19

IC OFFLINE SWIT OVP UVLO 8SMD

TOP234GN

Manufacturer Part Number
TOP234GN
Description
IC OFFLINE SWIT OVP UVLO 8SMD
Manufacturer
Power Integrations
Series
TOPSwitch®-FXr
Type
Off Line Switcherr
Datasheet

Specifications of TOP234GN

Output Isolation
Isolated
Frequency Range
66 ~ 132kHz
Voltage - Output
700V
Power (watts)
30W
Operating Temperature
-40°C ~ 150°C
Package / Case
8-SMD Gull Wing, 7 Leads
Output Voltage
12 V
Input / Supply Voltage (max)
265 VAC
Input / Supply Voltage (min)
85 VAC
Duty Cycle (max)
78 %
Switching Frequency
132 KHz
Supply Current
1.5 mA
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TOP234GN
Manufacturer:
PowerInt
Quantity:
350
Part Number:
TOP234GN
Manufacturer:
POWER
Quantity:
4 500
Company:
Part Number:
TOP234GN,,5800,SOP-7,POWER,,,2020+
0
Company:
Part Number:
TOP234GN-TL
Manufacturer:
POWER
Quantity:
10 000
Company:
Part Number:
TOP234GN-TL,,12000,SOP-7,PI,,,2020+
0
Company:
Part Number:
TOP234GN-TL,,2500,SOP-7,POWER,,,2020+
0
TOPSwitch-FX vs. TOPSwitch-ll
Table 3 compares the features and performance differences
between TOPSwitch-FX and TOPSwitch-II. Many of the new
features eliminate the need for costly discrete component.
*Not available
Table 3. Comparison Between TOPSwitch-II and TOPSwitch-FX. (continued on next page)
Key Application Considerations
Function
Soft-Start
External Current Limit
DC
Line Feed Forward with N/A*
DC
Line OV Shutdown
Line UV Detection
Switching Frequency
Switching Frequency
Option (TO-220 only)
Frequency Jitter
Cycle Skipping
MAX
MAX
Reduction
TOPSwitch-II
N/A*
N/A*
67%
N/A*
N/A*
100 kHz ±10%
N/A*
N/A*
N/A*
TOPSwitch-FX
10 ms
Programmable
100% to 40% of
default current
limit
78%
78% to 38%
Single resistor
programmable
Single resistor
programmable
132 kHz ±7%
66 kHz ±7%
±4 kHz@132 kHz
±2 kHz@66 kHz
At DC
MIN
(1.5%)
Other features increase the robustness of design allowing cost
savings in the transformer and other power components.
Figures Advantages
8, 17,
18, 21,
22
4
4, 8, 14, • Rejects line ripple
23
8, 14,
16, 23
5, 8, 14, • Prevents auto-restart glitches
15, 23
10
11, 12
6, 28
4
• Limits peak current and voltage
• Eliminates external components
• Minimizes output overshoot
• Smaller transformer
• Higher efficiency
• Allows tighter power limit
• Smaller input cap (wider dynamic
• Higher power capability (when used
• Allows use of Schottky secondary
• Increases transient and surge
• Increases voltage withstand cap-
• Smaller transformer
• Fundamental below 150 kHz for
• Lower losses when using RC and
• Allows for higher efficiency in
• Lower EMI (second harmonic below
• Reduces conducted EMI
• Zero load regulation without dummy
• Low power consumption at no load
component stresses during start-up
used for soft-start in most
applications
during output overload conditions
range)
with RCD clamp for large V
rectifier diode for up to 15 V output
for high efficiency
voltage withstand capability
ability against line surge
during power down
conducted EMI
RCD snubber for noise reduction in
video applications
standby mode
150 kHz)
load
TOP232-234
OR
7/01
)
B
19

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