TOP242-250 POWERINT [Power Integrations, Inc.], TOP242-250 Datasheet - Page 14

• Manufacturer Part Number: TOP242-250
• Description: TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher
• Manufacturer: POWERINT [Power Integrations, Inc.]

Typical Uses of FREQUENCY (F) PIN
Figure 13. Full Frequency Operation (132 kHz).
14
TOP242-250
Voltage
Input
M
12/04
DC
+
-
D
S
CONTROL
Figure 15. Half Frequency Standby Mode (For High Standby
F
C
Voltage
Input
DC
+
-
Efficiency).
PI-2654-071700
D
S
CONTROL
Q
20 kΩ
R
S
HF
can be an optocoupler output.
F
Figure 14. Half Frequency Operation (66 kHz).
C
1 nF
Voltage
Q
Input
S
DC
47 kΩ
+
-
STANDBY
PI-2656-040501
D
S
CONTROL
F
C
PI-2655-071700