Acer Emachines E627 COMPAL LA-5481P HCWG0_H0 Rev1.0

5
4
3
2
1
D
<28,37> SYSON
PR107
0_0402_5%
1 2
PR106
267K_0402_1%
1 2
PR200
0_0603_5%
1 2 4
5
3 6
7
8
2
1
1.8_51117_B+
PQ25
AO4466_SO8
2 1
PL14
FBMA-L11-322513-151LMA50T_1210
1 2
PC88
10U_1206_25VAK
2 1
B+
@PC204
680P_0402_50V7K
D
C
VFB=0.75V
Vo=VFB*(1+PR111/PR112)=0.75*(1+14K/10K)=1.8V
Rton=267K=>Faw=297KHz
+5VALW
Cout ESR=15m ohm
Ipeak=11.96A, Imax=8.372A
Delta I=((19-1.8)*(1.8/19))/(L*Fsw)
((19-1.8)*(1.8/19))/(1.8u*297000)=3.048A
=>1/2DeltaI=1.524A
PR109
300_0603_5%
1 2
PC94
1U_0603_10V6K
1
2
1
2
@PC89
0.1U_0402_16V7K
1
@PC93
47P_0402_50V8J
1 2
PR111
14K_0402_1%
1 2
PU9
EN_PSV 1
2
TON
DRVH 13
3
VOUT
LL
12
4
V5FILT VFB=0.75V TRIP 11
5
VFB
V5DRV 10
6
PGOOD
DRVL
9
GND
7
TP 15
PGND
8
14
VBST
BST_1.8V
DH_1.8V
LX_1.8V
DL_1.8V
TPS51117RGYR_QFN14_3.5x3.5
PR108
PC90
0_0603_5%
0.1U_0603_25V7K
1 2BST_1.8V-1
1 2
1
2
PR110
16.2K_0402_1%
1
2
+5VALW
PC92
4.7U_0805_10V6K
PQ26
FDS6670AS_NL_SO8
4
G
D 5
D 6
D 7
D 8
3
2
1
S
S
S
2 1 2 1
PL8
1.8UH_MSCDRI-104A-1R8N-E_9.5A_30%
1 2
1
@PR201
4.7_1206_5%
+ PC91
330U_6.3V_M
2
@PC171
680P_0402_50V7K
+1.8VP
C
PR112
10K_0402_1%
2
Rtrip=16.2K
Iocp=12.39A~20.69A
1.2_51117_B+
PL15
FBMA-L11-322513-151LMA50T_1210
1 2
B+
B
A
<39,41> SPOK
VFB=0.75V
Vo=VFB*(1+PR119/PR120)=0.75*(1+6.04K/10K)=1.203V
Rton=267K=>Fsw=298KHz
+5VALW
PR115
0_0402_5%
1 2
1.2VP Ipeak=7.4A ; Imax=5.180A
Delta I=((19-1.2)*(1.2/19))/(L*Fsw)
((19-1.2)*(1.2/19))/(1.8u*298000)=2.10A
=>1/2DeltaI=1.05A
Rdson=11.5m/9m ohm
set Rtrip=12K
Icop_min=9.11A
Iocp_max=14.38A
@PC96
0.1U_0402_16V7K
PR120
10K_0402_1%
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5
4
1
2
PR117
300_0603_5%
1 2 @PC100
47P_0402_50V8J
1 2
PC101
1U_0603_10V6K
1
2
1
2
PR119
6.34K_0402_1%
1 2
PR114
267K_0402_1%
1 2
PU10
EN_PSV 1
2
TON
DRVH 13
3
VOUT
LL
12
4
V5FILT VFB=0.75V TRIP 11
5
VFB
V5DRV 10
6
PGOOD
DRVL
9
GND
7
TP 15
PGND
8
14
VBST
Security Classification
Issued Date
BST_1.2V
DH_1.2V
LX_1.2V
DL_1.2V
TPS51117RGYR_QFN14_3.5x3.5
PR116
PC97
0_0603_5%
0.1U_0603_25V7K
1 2BST_1.2V-1
1 2
1
2
PR118
12K_0402_1%
1
2
+5VALW
PC99
4.7U_0805_10V6K
Compal Secret Data
PQ40
FDS6670AS_NL_SO8
PQ39
AO4466_SO8
2008/06/11 Title
Deciphered Date
2010/03/12
4
PC95
10U_1206_25VAK
PL9
1.8UH_MSCDRI-104A-1R8N-E_9.5A_30%
1 2
+1.2VALWP
Compal Electronics, Inc.
SCHEMATIC, MB A5481
THIS SHEET OF ENGINEERING DRAWING IS THE PROPRIETARY PROPERTY OF COMPAL ELECTRONICS, INC. AND CONTAINS CONFIDENTIAL
Size Document Number Rev
AND TRADE SECRET INFORMATION. THIS SHEET MAY NOT BE TRANSFERED FROM THE CUSTODY OF THE COMPETENT DIVISION OF R&D
DEPARTMENT EXCEPT AS AUTHORIZED BY COMPAL ELECTRONICS, INC. NEITHER THIS SHEET NOR THE INFORMATION IT CONTAINS
Custom
C
401743
MAY BE USED BY OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC.
Date: Wednesday, June 24, 2009
Sheet 44 of
47
3
2
1
4
D 5
D 6
D 7
D 8
G
3
2
1
S
S
S
5
3 6
1
2
1
2
7
8
2
1
@PR203
4.7_1206_5%
@PC172
680P_0402_50V7K
1
2
1
1
2
+ PC98
330U_D2E_2.5VM
2
@PC205
680P_0402_50V7K
B
A