TOP257YN Power Integrations, TOP257YN Datasheet - Page 41

• 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 Performance Characteristics (cont.)
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Figure 64. Control Current Out at 0% Duty Cycle vs. Temperature.
Figure 62a. VOLTAGE-MONITOR Pin vs. Current.
Figure 63a. MULTI-FUNCTION Pin Voltage vs. Current.
1.2
1.0
0.8
0.6
0.4
0.2
5.5
4.5
3.5
2.5
6
5
4
3
2
1
0
0
MULTI-FUNCTION Pin Current ( A)
2
4
3
6
5
VOLTAGE-MONITOR Pin Current ( A)
-200 -100
-50 -25
0
Junction Temperature ( C)
100
0
0
25
200
100
50
See expanded
version
(Figure 63b)
200 300 400 500
300
75 100 125 150
400
500
EXTERNAL CURRENT LIMIT Pin Current ( A)
Figure 62b. EXTERNAL CURRENT LIMIT Pin Voltage vs. Current.
Figure 63b. MULTI-FUNCTION Pin Voltage vs. Current (Expanded).
Figure 65. Maximum Duty Cycle Reduction Onset Threshold
1.2
1.0
0.8
0.6
0.4
0.2
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
-200
-200
0
-50 -25
MULTI-FUNCTION Pin Current ( A)
Current vs. Temperature.
V
(I
V
(I
M
X
M
X
)
)
Junction Temperature ( C)
= 1.354 - 1147.5 × I
2
= 1.354 - 1147.5 × I
2
with -180 A
with -180 A
-150
-150
0
25
-100
-100
I
I
50
X
M
TOP252-262
-25 A
-25 A
X
M
75 100 125 150
1.759 × 10
1.759 × 10
-50
-50
6
6
×
×
0
0
Rev. F 01/09
41