lc5521d Allegro MicroSystems, Inc., lc5521d Datasheet - Page 6

• Manufacturer Part Number: lc5521d
• Description: Single-stage Power Factor Corrected Off-line Switching Regulator Ic
• Manufacturer: Allegro MicroSystems, Inc.

LC5521D
MOSFET Avalanche Energy Derating Coefficient Curve
S. O. A. Temperature Derating Coefficient Curve
100
100
80
60
40
20
80
60
40
20
0
0
25
0
Channel Temperature, T ch (°C)
Channel Temperature, T ch (°C)
25
50
50
75
0.01
0.1
10
1
10
75
-6
100
100
125
125
10
Transient Thermal Resistance Curve
-5
Characteristic Performance
150
150
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
10
-4
Time (s)
Single-Stage Power Factor Corrected
MOSFET Temperature versus Power Dissipation Curve
10
-3
Off-Line Switching Regulator IC
0.01
100
0.1
10
1
MOSFET Safe Operating Area Curve
1.2
1.0
0.8
0.6
0.4
0.2
1
0
To use this graph, apply the S.O.A
temperature derating coefficient
taken from the graph at the left
0
10
Drain current limited
Drain-to-Source Voltage, V DS (V)
by on-resistance
-2
Ambient Temperature, T A (°C)
25
10
50
10
75
-1
100
1 ms
100
125
0.1 ms
150
1000
6