TOP268EG Power Integrations, TOP268EG Datasheet - Page 13

• Manufacturer Part Number: TOP268EG
• Description: IC OFFLINE SW PWM OCP OVP 7ESIP
• Manufacturer: Power Integrations
• Series: TOPSwitch®-JXr
• Type: Off Line Switcherr

Specifications of TOP268EG

• Output Isolation: Isolated
• Frequency Range: 66 ~ 132kHz
• Voltage - Output: 725V
• Power (watts): 112W
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 7-SIP, 6 Leads, Exposed Pad, Formed Leads
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 596-1276-5

Figure 15. Line-Sensing for Undervoltage, Overvoltage, Line Feed-Forward and
Typical Uses of VOLTAGE MONITOR (V) and EXTERNAL CURRENT LIMIT (X) Pins
Figure 17. Line-Sensing for Overvoltage Only (Undervoltage Disabled). Maximum
Figure 13. 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
CONTROL
LS
CONTROL
E Package
(eSIP-7C)
V X C
F
C
V
VR
V
4 MΩ
F
C
4 MΩ
55 kΩ
S
S D
OVP
D
For Values Shown
C
V
V
For R
C
V
V
UV
OV
5 NC
S 12
S 11
S 10
OV
OV
S 9
S 8
S 7
1 V
2 X
3 C
6 D
4 F
R
V
V
DC
DC
V Package (eDIP-12)
= I
= I
K Package (eSOP-12)
= I
= 457.2 VDC
UV
OV
OVP
C
1N4148
LS
Sense Output Voltage
UV
OV
MAX
MAX
OV
D
= 102.8 VDC
= 451 VDC
= 4 MΩ
× R
× R
S
× R
@ 100 VDC = 76%
@ 375 VDC = 41%
R
LS
LS
OVP
LS
PI-6119-082510
+ V
PI-4719-120307
+ V
PI-4721-120307
+ V
>3kΩ
V
V
V
S
(I
D C
(I
(I
V
V
V
= I
= I
= I
1 V
2 X
3 C
4 F
5 NC
6 D
S 12
S 11
S 10
S 9
S 8
S 7
UV
OV
OV
)
)
)
Figure 18. External Set Current Limit.
Figure 16. Line Sensing for Undervoltage Only (Overvoltage Disabled).
Figure 14. 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 37 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-5580-111210
+ V
+ V
PI-4717-120307
+ V
V
V
V
IL
(I
(I
Rev. C 11/10
(I
).
V
V
V
= I
13
= I
= I
UV
UV
OV
)
)
)