SG6742HRSY Fairchild Semiconductor, SG6742HRSY Datasheet - Page 7

• Manufacturer Part Number: SG6742HRSY
• Description: IC CTRLR PWM PROG GREEN CM 8SOP
• Manufacturer: Fairchild Semiconductor

Specifications of SG6742HRSY

• Output Isolation: Isolated
• Frequency Range: 90 ~ 110kHz
• Voltage - Input: 9.5 ~ 30 V
• Voltage - Output: 18V
• Power (watts): 400mW
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Number Of Outputs: 1
• Duty Cycle (max): 70 %
• Output Voltage: 18 V
• Mounting Style: SMD/SMT
• Switching Frequency: 110 KHz
• Operating Supply Voltage: 30 V
• Supply Current: 2.7 mA
• Maximum Operating Temperature: + 105 C
• Fall Time: 50 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 250 ns
• Synchronous Pin: No
• Topology: Flyback Converter
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2008 Fairchild Semiconductor Corporation
SG6742HL/HR • Rev. 1.0.4
Typical Performance Characteristics
Figure 6. Startup Current (I
Figure 10. Supply Current Drawn from HV Pin (I
Figure 12. Frequency in Normal Mode (f
Figure 8. Start Threshold Voltage (V
18
17
16
15
14
13
5
4
3
2
1
0
105
103
101
25
20
15
10
-40
99
97
95
5
0
-40
-40
-40
-30
-30
-30
-30
-15
-15
-15
-15
vs. Temperature
vs. Temperature
vs. Temperature
0
0
0
0
Temperature (℃)
Temperature (℃)
Temperature (℃)
Temperature (℃)
25
25
25
25
DD-ST
50
50
50
50
) vs. Temperature
75
75
75
75
85
85
85
85
DD-ON
100
100
100
100
OSC
)
125
125
125
125
)
HV
)
7
Figure 11. HV Pin Leakage Current after Startup
Figure 9. Minimum Operating Voltage (V
Figure 7. Operation Supply Current (I
5
4
3
2
1
0
12
11
10
10
70
68
66
64
62
60
Figure 13. Maximum Duty Cycle (DCY
-40
9
8
7
8
6
4
2
0
-40
-40
-40
-30
-30
-30
-30
(I
-15
-15
-15
-15
HV-LC
vs. Temperature
vs. Temperature
vs. Temperature
) vs. Temperature
0
0
0
0
Temperature (℃)
Temperature (℃)
Temperature (℃)
Temperature (℃)
25
25
25
25
50
50
50
50
75
75
75
75
85
85
85
85
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100
DD-OP
100
100
100
MAX
DD-OFF
)
125
)
125
125
125
)