SG684965DZ Fairchild Semiconductor, SG684965DZ Datasheet - Page 9

• Manufacturer Part Number: SG684965DZ
• Description: IC CTRLR PWM OTP UVLO CV/CC 8DIP
• Manufacturer: Fairchild Semiconductor

Specifications of SG684965DZ

• Output Isolation: Isolated
• Frequency Range: 60 ~ 70kHz
• Voltage - Input: 8 ~ 25 V
• Voltage - Output: 16.7V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Number Of Outputs: 1
• Duty Cycle (max): 80 %
• Mounting Style: Through Hole
• Switching Frequency: 70 KHz
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Flyback
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2008 Fairchild Semiconductor Corporation
SG6849 Rev. 1.6.1
Typical Performance Characteristics
Figure 17. Valley Threshold Voltage (V
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
5.0
4.8
4.6
4.4
4.2
4.0
Figure 15. Output Voltage Low (V
Figure 13. FB Open-Loop Voltage (V
-40
-40
9
-25
10
-30
-10
11
-15
5
12
vs. Temperature
vs. Temperature
20
13
0
Temperature (°C)
Temperature (°C)
35
14
V
Figure 19. V
25
DD
50
(V)
15
50
65
16
80
120
100
80
60
40
20
17
75
0
26.0
STHVA
DD
GATE-L
95
18
100
26.5
Zener Current vs. Zener Clamp Voltage
FB
110 125
) vs. V
19
)
)
27.0
125
20
(Continued)
DD
V
DD
27.5
Zener Clamp Voltage (V)
9
28.0
Figure 16. Green-Mode Burst Back and Green-Mode
1.10
1.05
1.00
0.95
0.90
28.5
Figure 14. Valley Threshold Voltage (V
0.80
0.78
0.76
0.74
0.72
0.70
30.0
25.0
20.0
15.0
10.0
10
5.0
0.0
Figure 18. V
-40
29.0
8
-25
29.5
15
-10
30.0
Off Frequency vs. V
8.5
LIMIT
5
vs. Temperature
20
20
Ramp vs. Duty Cycle
Temperature (°C)
Duty Cycle (%)
35
f
V
OSC-G-BK
DD
25
9
(V)
50
65
30
DD
80
9.5
95
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f
STHVA
OSC-G-OFF
35
110 125
)
10
40