ld7575ps Leadtrend Technology, ld7575ps Datasheet - Page 7

• Manufacturer Part Number: ld7575ps
• Description: Green-mode Pwm Controller With High-voltage Start-up Circuit
• Manufacturer: Leadtrend Technology

Leadtrend Technology Corporation
LD7575-DS-04b November 2007
5.0
4.5
7.0
6.5
6.0
5.5
85
80
75
70
65
60
62
70
68
66
64
60
11
-40
-40
12
Fig. 11 V
Fig. 9 Max Duty vs. Temperature
14
0
0
COMP
Fig. 7 Frequency vs. Vcc
Temperature ( ° C)
16
open loop voltage vs. Temperature
Temperature ( ° C)
Vcc (V)
40
40
18
20
www.leadtrend.com.tw
80
80
22
120 125
24
120 125
25
7
6.0
5.5
5.0
4.5
4.0
3.5
35
30
25
20
15
10
25
23
21
19
17
15
11
-40
-40
12
Fig. 12 OLP-Trip Level vs. Temperature
Fig. 8 Green mode frequency vs. Vcc
Fig. 10 VCC OVP vs. Temperature
14
0
0
16
Temperature ( ° C)
Temperature ( ° C)
Vcc (V)
40
40
18
20
LD7575
80
80
22
120 125
120 125
24
25