Data Brief
For further information contact your local STMicroelectronics sales office.
June 2008 Rev 1 1/4
4
STEVAL-ISC002V1
Resonant LCC 90 W notebook power adapter
based on the L6599 and STP12NM50N
Features
■Dimensions (L/W/H): 132 mm / 52 mm / 22 mm
■Universal AC mains range: 90 VAC to 264 VAC
■High output power: 90 W (4.74 A, 19 VDC)
■Very low output noise and ripple: less than
300 m VP-P
■Very low standby power: less than 0.5 W
at 264 V
■Hiccup mode: Auto recovery with SCP
■Latch mode: OVP acts while VOUT > 29 VDC
■Efficiency > 88% at universal AC mains range
Description
This demonstration board is a 90 W wide-range
mains AC-DC adapter which is power factor
corrected. Its electrical specifications are suitable
for typical high-end portable computer power
adapters. The particular benefits of this design
are the very low no-load input consumption (<0.5
W) and the very high global efficiency.
The architecture is based on a two-stage
approach: a front-end PFC pre-regulator based
on the L6563 TM PFC controller and a
downstream multi-resonant half-bridge converter
that makes use of the L6599 resonant controller.
STEVAL-ISC002V1
www.st.com
Schematic diagram STEVAL-ISC002V1
2/4
1 Schematic diagram
Figure 1. Resonant LLC 90 W notebook power adapter schematic diagram
1
BD1
R3
C2
NC
+
NC
D6
+
+
C13
FL1
D7
+
D2
1
2
+
C1
D8
+
CX1 D3
R4
1 MΩ
D9
NC
C8
6 7
2
4
3
1
+
C4
R5
Q6
L
1
N3
FG 2
CN1
264 VAC
Q1
C9
CF
3
8
7
5
4
CSS
1
2
16
NC 13
11
OUT 14
HVG 15
12
9
6
10
U2
C3
R6
3 MΩ
U3
Q7
F1
1
12
2
3
3
Q3
Q2
D4
R7
2 MΩ
R1
D5
R8
CS
4
14
3
10
5
9
12
NV
1
2
6
GD 13
7
11
8
U1
C6
R2
1
2
4
67
8
9
10
11
12
T1
C5
X
X
AM00204
T4A/250 VAC
680
KΩ
680
KΩ
680
KΩ
0.47 µF
/250 V
FOTC1905500800A
CX2
0.47 µF
/250 V
D2SB60A
0.47 µF
/450 V
STD1NK 60-1
1.5 MΩ
QP-25
L1
NTC1
STTH2R06
SCK2R55A
68 µF / 450 V
R23
1 MΩ
R24
1 MΩ
R27
2 MΩ
R28
3 MΩ
R26
82 KΩ
R25
15 KΩ
R29
8.2 KΩ
R30
22 KΩ
C14
68 PF
R50 R51 R52 R53
NC NC NC NC
CY1
3300PY1
100 KΩR9
12 KΩ
4401
1N4
148
D1
ZD1
B
ZV55-C15
R10
10 KΩ
R11
62
KΩ
10 nF
R12
1 µF/ 25 V 22 KΩ
20 KΩ
R13 C7
1000 PF
150 KΩ
R14
0.47
µF
VCC
COMP
MULT
PWM-GND
ZCD
VFF
TBO
PFC-OK
RUN
PWM-STOP
PWM-LATCH
L6563
240 KΩ
R15
1000 PF
C10
33 nF
C11
2.2 nF
R16
0 Ω
1N4148
R17
4.7 Ω
R19
1 kΩ
R18
22 KΩ
R20
0.27 Ω 2 Ω
STP12N M50
C12
NC
C18
470 nF
R34
0 Ω
R35
15
KΩ
R33
2.7
KΩ
R21
100 KΩ
R22
6.8 kΩ
4401
Q4
R39
200 KΩ
C19
0.1 µF / 25 V R40
220 Ω
C20
680
PF
R41
2.7 KΩ
R40
0 Ω
C21
NC
R37
120 Ω
R38
10 KΩ
C22
0.1 µF
X7R
ZD2
BZV55C22
NTC2
NC
R36
NC
C15
22 µF
/ 6.3 V C16
0.22 µF
R32
1 MΩ
C17
470 pF NPO
39 Ω
R31
L6599
DELAY
VBOOT
C23 0.1 µF
RFMIN
STBY VCC
ISEN LVG
LINE GND
DISABLE
PFC_STOP
1N4148
R43
47 Ω100 KΩ
R44
Q5
STP9NK50ZFP
C24
0.1 µF
ZD3
15 V
C25
47 µF
/25 V
R45
47 Ω
1N4148
R46
100 KΩ
STP9NM50ZFP
C27 R47
1N4148 220 P
/ 500 V
1N4148
100 Ω
1N4148
C28
220 µF
/ 35 V
R48
6.8 Ω
1/4 W
C26
0.022 µF/
300 VAC
LP-2920 CR201
CR202
STPS20L60CT
STPS20L60CT
L201
470 µF
/ 25 V
C201C202
470 µF
/ 25 V
R201
NC 470 µF
/ 25 V
C203
R202
NC
R203
NC
0.1 µF
/ 25 V
C204
MKDSN1.5_2P
+19 V
GND
CN2
R204
100 Ω
R205
3.9 KΩ
C205
1 µF
KST4401
1N4148 R49
4.3 KΩ
ZD4
BZV55C15
R209
PC817B
IC201
TL431
R210 C207
2.2 KΩ
0.22 µF C208 R211
120 KΩ
R212
6 KΩ 2F
R206
39 KΩ
1%
R207
0 Ω
R208
NC
C206
NC
0.1 µF
47 µF
/ 25 V
STEVAL-ISC002V1 Revision history
3/4
2 Revision history
Table 1. Document revision history
Date Revision Changes
11-June-2008 1 Initial release.
STEVAL-ISC002V1
4/4
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