ld7576a Leadtrend Technology, ld7576a Datasheet - Page 7

• Manufacturer Part Number: ld7576a
• Description: Green-mode Pwm Controller With High-voltage Start-up Circuit And Adjustable Olp Delay Time
• Manufacturer: Leadtrend Technology

Typical Performance Characteristics
Leadtrend Technology Corporation
LD7576A-DS-00b November, 2009
Fig. 1 HV Current Source vs. Temperature (HV=500V, Vcc=0V)
18.0
17.2
16.4
15.6
14.8
14.0
1.5
1.3
1.1
0.9
0.7
70
68
66
64
62
60
-40
-40
-40
Fig. 3 UVLO (on) vs. Temperature
Fig. 5 Frequency vs. Temperature
0
0
0
Temperature (°C)
Temperature (°C)
Temperature (°C)
40
40
40
www.leadtrend.com.tw
80
80
80
120 125
120 125
120 125
7
0.88
0.86
0.84
0.82
0.80
0.78
11.2
10.4
9.6
24
22
20
18
16
14
8.8
12
8
-40
-40
-40
Fig. 6 Green Mode Frequency vs. Temperature
Fig. 4 UVLO (off ) vs. Temperature
Fig. 2 V
0
0
0
Temperature (°C)
Temperature (°C)
Temperature (°C)
CS
(off) vs. Temperature
40
40
40
LD7576A
80
80
80
120 125
120 125
120 125