TOP257YN Power Integrations, TOP257YN Datasheet - Page 20

• Manufacturer Part Number: TOP257YN
• Description: IC OFFLINE SWIT PROG OVP TO220
• Manufacturer: Power Integrations
• Series: TOPSwitch®-HXr
• Type: Off Line Switcherr

Specifications of TOP257YN

• Output Isolation: Isolated
• Frequency Range: 119 ~ 145kHz
• Voltage - Output: 700V
• Power (watts): 157W
• Operating Temperature: -40°C ~ 150°C
• Package / Case: TO-220-7 (Formed Leads), 5 Leads
• Output Voltage: 700 V
• Input / Supply Voltage (max): 9 V
• Input / Supply Voltage (min): - 0.3 V
• Duty Cycle (max): 78 %
• Switching Frequency: 132 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 40 C
• Output Current: 5.44 A
• Output Power: 157 W
• For Use With: 596-1193 - KIT REF DESIGN TOP HX FOR TOP258
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 596-1188-5

Typical Uses of MULTI-FUNCTION (M) Pin (cont.)
Figure 39. Active-off Remote ON/OFF with Externally Set Current Limit
Rev. F 01/09
Figure 37. Active-on (Fail Safe) Remote ON/OFF.
20
ON/OFF
Voltage
Input
DC
+
-
Voltage
(see M Pin Operation Description).
Input
DC
R
+
ON/OFF
TOP252-262
47 k
-
IL
12 k
Q
R
7 k
D
S
CONTROL
D
S
Q
M
R
CONTROL
R
M
MC
C
Q
output or can be replaced
by a manual switch.
R
24 k
Q
output or can be replaced
by a manual switch.
can be an optocoupler
C
R
can be an optocoupler
R
MC
=
PI-2519-040501
2R
PI-4736-060607
IL
Figure 38. Active-on Remote ON/OFF with Externally Set Current Limit
Figure 40. Line-Sensing for Undervoltage, Overvoltage, Line Feed-Forward and
ON/OFF
Reset
Voltage
Voltage
Input
DC
Input
(see M Pin Operation Description).
+
DC
Latched Output Overvoltage Protection with Device Reset.
+
16 k
-
-
10 k
R
IL
Q
R
Q
R
D
S
D
S
R
CONTROL
CONTROL
LS
M
M
4 M
For R
C
C
V
V
V
V
DC
DC
Q
output or can be replaced
by a manual switch.
UV
OV
UV
OV
LS
R
MAX
MAX
= I
= 102.8 VDC
= I
= 4 M
= 451 VDC
can be an optocoupler
For R
For R
Sense Output Voltage
UV
OV
@ 100 VDC = 76%
@ 375 VDC = 41%
www.powerint.com
I
I
LIMIT
LIMIT
× R
× R
IL
IL
LS
LS
=
= 61%
=
= 37%
PI-4757-120307
12 k
PI-4735-092107
+ V
19 k
+ V
M
M
(I
(I
M
M
= I
= I
UV
OV
)
)