TNY267G Power Integrations, TNY267G Datasheet - Page 6

• Manufacturer Part Number: TNY267G
• Description: IC OFFLINE SWIT OTP OCP HV 8SMD
• Manufacturer: Power Integrations
• Series: TinySwitch®-IIr

Specifications of TNY267G

• Output Isolation: Isolated
• Frequency Range: 124 ~ 140kHz
• Voltage - Output: 700V
• Power (watts): 19W
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 8-SMD Gull Wing, 7 Leads
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

During power-down, when an external resistor is used, the
power MOSFET will switch for 50 ms after the output loses
regulation. The power MOSFET will then remain off without
any glitches since the under-voltage function prohibits restart
when the line voltage is low.
Figure 12 illustrates a typical power-down timing waveform of
TinySwitch-II. Figure 13 illustrates a very slow power-down
timing waveform of TinySwitch-II as in standby applications.
The external resistor (2 MΩ) is connected to the EN/UV pin
in this case to prevent unwanted restarts.
200
100
Figure 9. TinySwitch-II Operation at Very Light Load.
400
200
Figure 10. TinySwitch-II Power-up with Optional External UV
10
0
5
0
0
6
TNY263-268
V
0
I
CLOCK
D
DRAIN
DRAIN
MAX
V
G
4/05
V
EN
V
V
DC-INPUT
DRAIN
BYPASS
Resistor (2 MΩ) Connected to EN/UV Pin.
Time (ms)
1
PI-2661-072400
2
200
100
200
100
Figure 11. TinySwitch-II Power-up without Optional External UV
200
100
Figure 13. Slow Power-down Timing with Optional External
400
200
400
300
200
100
400
300
200
100
10
Figure 12. Normal Power-down Timing (without UV).
0
5
0
0
0
0
0
0
0
0
0
V
V
V
DC-INPUT
Resistor Connected to EN/UV Pin.
(2 MΩ) UV Resistor Connected to EN/UV Pin.
DRAIN
BYPASS
Time (ms)
Time (s)
Time (s)
2.5
.5
1
V
V
V
DC-INPUT
DC-INPUT
V
DRAIN
DRAIN
2
5
1