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 V
■
Very low standby power: less than 0.5 W
at 264 V
■ Hiccup mode: Auto recovery with SCP
■ Latch mode: OVP acts while V
■ 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.
P-P
> 29 VDC
OUT
STEVAL-ISC002V1
Data Brief
STEVAL-ISC002V1
June 2008 Rev 1 1/4
For further information contact your local STMicroelectronics sales office.
www.st.com
4
Schematic diagram STEVAL-ISC002V1
1 Schematic diagram
Figure 1. Resonant LLC 90 W notebook power adapter schematic diagram
GND
+19 V
CN2
1
1
680 KΩ680 KΩ680
F1
T4A/250 VAC
1
CN1
R50 R51 R52 R53
0.47 µF
FL1
R1
L
NC NC NC NC
NTC1
D3
QP-25
3
BD1
/250 V
CX1
2
FG
1
R2
CY1
3300PY1
R27
2 MΩ
R28
R23
1 MΩ
R24
+
C13
SCK2R55A
68 µF / 450 V
STTH2R06
2
L1
6 7
4
R6
R7
3 MΩ
R4
R5
1 MΩ
C1
0.47 µF
/450 V
D2SB60A
CX2
0.47 µF
/250 V
KΩ
FOTC1905500800A
R3
3
N
264 VAC
R29
8.2 KΩ
3 MΩ
1 MΩ
R26
STD1NK 60-1
Q1
2 MΩ
1.5 MΩ
Q2
4401
R8
2
C204
0.1 µF
NC
NC
C203
+
L201
R201
NC
C202
+
470 µF
C201
+
470 µF
STPS20L60CT
CR202
7
8
T1
4
6
0.022 µF/
300 VAC
100 KΩ
ZD3
15 V
C25
47 µF
+
47 Ω
C24
0.1 µF
13
12
14
NC
V
OUT
STBY
CF
DELAY
RFMIN
5
4
3
C17
NTC2
1 MΩ
470 pF NPO
R35
R34
STP12N M50
R16
12
11
GD
ZCD
RUN
PWM-GND
MULT
VFF
CS
TBO
4
3105
6
C7
1000 PF
R13
20 KΩ
/ 25 V
MKDSN1.5_2P
470 µF
/ 25 V
/ 25 V
/ 25 V
9
101112
C26
Q6
/25 V
R45
47 Ω
10
11
CC
ISEN LVG
LINE GND
7
6
NC
R36
15
KΩ
0 Ω
C12
223
1
1
Q3
D2
0 Ω
8
9
PWM-STOP
PWM-LATCH
PFC-OK
7
C8
0.47
R14
150 KΩ
R204
100 Ω
STPS20L60CT
1
2
R46
100 KΩ
STP9NM50ZFP
D5
D6
1N4148
9
DISABLE
PFC_STOP
8
NC
NC
3
R18
22 KΩ
R17
4.7 Ω
1N4148
C11
2.2 nF
µF
R47
C27
C18
R206
R48
100 Ω
220 P
1N4148
0.1 µF
470 nF
R19
C10
C9
R15
R208
39 KΩ
R205
C205
6.8 Ω
/ 500 V
D7
R37
120 Ω
X7R
R20
1 kΩ
33 nF
240 KΩ
NC
1%
3.9 KΩ
1 µF
1/4 W
D8
1N4148
ZD2
C22
0.27 Ω 2 Ω
C206
NC
0 Ω
R207
1N4148
+
C28
BZV55C22
R38
1000 PF
/ 35 V
220 µF
10 KΩ
R40
220 Ω
C20
680
R39
200 KΩ
C19
0.1 µF / 25 V
4401
R212
R211
C208
C207
0.22 µF
2.2 KΩ
R210
NC
R209
U3
IC201
PC817B
R49
KST4401
Q7
D9
0 Ω
R40
PF
C21
NC
R41
2.7 KΩ
R21
100 KΩ
Q4
R22
6.8 kΩ
R203
R202
CR201
LP-2920
Q5
STP9NK50ZFP
R44
1N4148
D4
R43
C23 0.1 µF
15
16
+
L6599
39 Ω
R31
C15
22 µF
/ 6.3 V
R11
62
R10
10 KΩ
0.1 µF
C3
C4
47 µF
/ 25 V
L6563
U1
10 nF
C5
U2
C16
KΩ
1
R33
R12
C6
HVG
VBOOT
CSS
2
R32
0.22 µF
2.7
KΩ
13
14
CC
V
COMP
NV
1
2
1 µF/ 25 V 22 KΩ
C14
68 PF
R30
22 KΩ
R25
15 KΩ
82 KΩ
ZD1
D1
148
ZV55-C15
B
1N4
R9
12 KΩ
C2
NC
100 KΩ
X
6 KΩ 2F
120 KΩ
NC
TL431
4.3 KΩ
X
1N4148
ZD4
BZV55C15
AM00204
2/4
STEVAL-ISC002V1 Revision history
2 Revision history
Table 1. Document revision history
Date Revision Changes
11-June-2008 1 Initial release.
3/4
STEVAL-ISC002V1
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