ld7552 Leadtrend Technology, ld7552 Datasheet - Page 5

• Manufacturer Part Number: ld7552
• Description: Green-mode Pwm Controller
• Manufacturer: Leadtrend Technology

Typical Performance Characteristics
Leadtrend Technology Corporation
LD7552-DS-00 February, 2005
12.2
12.0
11.8
11.6
11.4
11.2
11.0
72.0
71.0
70.0
69.0
68.0
67.0
66.0
75.9
75.6
75.3
75.0
74.7
74.4
-40
-40
-40
-20
-20
-20
Fig. 5 Duty-Cycle (max.) vs. Temperature
Fig. 1 UVLO (Off) vs. Temperature
Fig. 3 Frequency vs. Temperature
0
0
0
20
20
Temperature (°C)
Temperature (°C)
Temperature (°C)
20
40
40
40
60
60
60
80
80
80
100
100
100
120
120
120
5
17.0
16.8
16.4
16.0
15.6
15.2
14.8
14.4
14.0
18.2
18.0
17.8
17.6
17.4
17.2
17.0
-40
-40
Fig. 4 Green-Mode Frequency vs. Temperature
-20
-20
Fig. 2 UVLO (On) vs. Temperature
0
0
20
Temperature (°C)
Temperature (°C)
20
40
40
60
60
LD7552
80
80
100
100
120
120