E-L4981AD STMicroelectronics, E-L4981AD Datasheet - Page 11

• Manufacturer Part Number: E-L4981AD
• Description: IC PWR FACTOR CORRECTOR 20 SOIC
• Manufacturer: STMicroelectronics

Specifications of E-L4981AD

• Mode: Average Current
• Frequency - Switching: 100kHz
• Current - Startup: 100µA
• Voltage - Supply: 14.5 V ~ 19.5V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Switching Frequency: 115 KHz
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-4561-5

Figure 19: Demo Board Circuit (V
Figure 20: Component Layout (Dimensions 88 x 150mm).
88 to 264 Vac
T15A250V
F1
Cf
.22uF
600V
BRIDGE
B1 8A
RAux1
RAux2
**
C1
330nF
400V
TP1
R1
460
O
15
16
C3
330n
C2
330n
2
= 400V; P
R2
33k
8
7
R3
2.2k
R4
1.2M
R5
220k
5
R9 (RS)
50m
// 3*0.15)
4
R10
5k
R8
17k
R6
500k
R7
500k
B2= D1+D2
+D8+D9
C6
3.3n
L4981A/ B**
O
1
R12
56k
R11
56k
= 360W).
9
R13
2.2k
19
L1=0.5mE42*21*15
gap=1.9 58/6 turns
20*.2mm
18
VCC
C8
100n
C9
1n
10
R14
68
R15
24k
13
Dz1
18V
C11
220n
17
R16
220k
12
D6
DZW06-48
14
D5-
STTA106
C12
1u
20
11
6
3
C10
150uF
VCC
D3
D4-STTH8R06
to220 (/40CW)
R17
15
Q1+Q2#
C13
1u
L2
3u
# // Q1&Q2
STM12NM50
/ 7C/W
TO220*2
D7-STTA406
C14
100n
Q4
4007
Cs
330pF
NTC
2.5
R25
1k
2W
R18
6.8
2W
R19
750k
R20
750k
R21
19.6k
L4981A - L4981B
R22
750k
R23
750k
R24
16.9k
V+ BUS=400V
C15
220uF
450V
-
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