TOP266EG/VG POWERINT [Power Integrations, Inc.], TOP266EG/VG Datasheet - Page 13

• Manufacturer Part Number: TOP266EG/VG
• Description: Integrated Off-Line Switcher with EcoSmart Technology for Highly Efficient Power Supplies
• Manufacturer: POWERINT [Power Integrations, Inc.]

Figure 14. Line-Sensing for Undervoltage, Overvoltage, Line Feed-Forward and
Typical Uses of VOLTAGE MONITOR (V) and EXTERNAL CURRENT LIMIT (X) Pins
Figure 16. Line-Sensing for Overvoltage Only (Undervoltage Disabled). Maximum
Figure 12. Three Terminal Operation (VOLTAGE MONITOR and EXTERNAL
www.powerint.com
Voltage
Input
DC
+
-
Voltage
Voltage
Input
Hysteretic Output Overvoltage Protection.
Input
Duty Cycle Reduced at Low Line and Further Reduction with
Increasing Line Voltage.
CURRENT LIMIT Features Disabled. FREQUENCY Pin Tied to
SOURCE or CONTROL Pin.)
DC
+
DC
+
-
-
D
S
R LS
CONTROL
D
S
D
S
X
V
R
S 12
S 11
S 10
CONTROL
LS
CONTROL
S 9
S 8
S 7
F
V
VR
V
4 MΩ
C
4 MΩ
55 kΩ
V Package
(eDIP-12)
S
OVP
For Values Shown
C
V
V
For R
C
V
V
UV
OV
OV
OV
R
V
V
DC
DC
= I
= I
= I
= 457.2 VDC
UV
OV
OVP
1N4148
LS
D C
Sense Output Voltage
UV
OV
MAX
MAX
OV
= 102.8 VDC
= 451 VDC
= 4 MΩ
1 V
2 X
3 C
4 F
5 NC
6 D
× R
× R
× R
@ 100 VDC = 76%
@ 375 VDC = 41%
R
LS
LS
OVP
LS
E Package
(eSIP-7C)
V X C
PI-5562-082809
+ V
PI-4719-120307
+ V
PI-4721-120307
+ V
>3kΩ
C
V
V
F
V
(I
S
S D
(I
(I
V
V
V
D
= I
= I
= I
UV
OV
OV
)
)
)
Figure 17. External Set Current Limit.
Figure 15. Line Sensing for Undervoltage Only (Overvoltage Disabled).
Figure 13. Line-Sensing for Undervoltage, Overvoltage and Line Feed-Forward.
Voltage
Voltage
Input
Voltage
Input
DC
+
Input
DC
+
-
+
DC
-
-
6.2 V
D
S
D
S
D
S
CONTROL
CONTROL
R
CONTROL
LS
X
V
R
4 MΩ
40 kΩ
V
IL
TOP264-271
4 MΩ
C
C
C
V
R
V
V
For R
DC
DC
UV
UV
OV
For Values Shown
LS
See Figure 35 for other
resistor values (R
MAX
MAX
V
V
V
= R
= I
= I
For R
For R
UV
UV
OV
LS
@100 VDC = 76%
@375 VDC = 41%
UV
OV
I
I
LS
= 103.8 VDC
LIMIT
LIMIT
= 102.8 VDC
= 4 MΩ
= 451 VDC
× R
× R
IL
IL
× I
= 12 kΩ
= 19 kΩ
= 61%
= 37%
UV
LS
LS
PI-4720-120307
PI-5580-012210
+ V
+ V
PI-4717-120307
+ V
V
V
V
IL
(I
Rev. B 03/10
(I
(I
).
V
V
V
= I
13
= I
= I
UV
UV
OV
)
)
)