TNY266PN Power Integrations, TNY266PN Datasheet - Page 4

IC OFFLINE SWIT OTP OCP HV 8DIP

TNY266PN

Manufacturer Part Number
TNY266PN
Description
IC OFFLINE SWIT OTP OCP HV 8DIP
Manufacturer
Power Integrations
Series
TinySwitch®-IIr
Datasheets

Specifications of TNY266PN

Output Isolation
Isolated
Frequency Range
124 ~ 140kHz
Voltage - Output
700V
Power (watts)
15W
Operating Temperature
-40°C ~ 150°C
Package / Case
8-DIP (0.300", 7.62mm), 7 Leads
Output Voltage
5.8 V
Input / Supply Voltage (max)
265 VAC
Input / Supply Voltage (min)
85 VAC
Duty Cycle (max)
68 %
Switching Frequency
132 KHz
Supply Current
265 uA
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
Through Hole
Supply Voltage
265VAC
Digital Ic Case Style
DIP
No. Of Pins
8
No. Of Regulated Outputs
1
Filter Terminals
DIP
Rohs Compliant
Yes
On Resistance Rds(on)
14ohm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
596-1051-5

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70 °C (typical) is provided to prevent overheating of the PC
board due to a continuous fault condition.
Current Limit
The current limit circuit senses the current in the power MOSFET.
When this current exceeds the internal threshold (I
power MOSFET is turned off for the remainder of that cycle. The
current limit state machine reduces the current limit threshold
by discrete amounts under medium and light loads.
The leading edge blanking circuit inhibits the current limit
comparator for a short time (t
turned on. This leading edge blanking time has been set so that
current spikes caused by capacitance and secondary-side rectifier
reverse recovery time will not cause premature termination of
the switching pulse.
Auto-Restart
In the event of a fault condition such as output overload, output
short circuit, or an open loop condition, TinySwitch-II enters
into auto-restart operation. An internal counter clocked by the
oscillator gets reset every time the EN/UV pin is pulled low. If
the EN/UV pin is not pulled low for 50 ms, the power MOSFET
switching is normally disabled for 850 ms (except in the case of
line under-voltage condition, in which case it is disabled until
the condition is removed). The auto-restart alternately enables
and disables the switching of the power MOSFET until the fault
condition is removed. Figure 5 illustrates auto-restart circuit
operation in the presence of an output short circuit.
In the event of a line under-voltage condition, the switching
of the power MOSFET is disabled beyond its normal 850 ms
time until the line under-voltage condition ends.
Figure 5. TinySwitch-II Auto-Restart Operation.
10
0
5
0
4
TNY263-268
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G
4/05
V
DC-OUTPUT
V
DRAIN
Time (ms)
LEB
1000
) after the power MOSFET is
LIMIT
), the
2000
Line Under-Voltage Sense Circuit
The DC line voltage can be monit
isMeMc
f the
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the
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Map

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