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Ilimit(min) per phase=41/2-7.1/2=16.95A
7A_24VDC_429007.WRML
16.95A*1.4mOHM(DCR)*1.3(temperature factor)*20=VLLIM(TYP)=0.61698V
1
PC111 PC112
Take PR156=200K, PR158=90.9K
+
PC157
VILIM=VREF*PR158/(PR158+PR156)=0.625(TYP)
4.7U_1206_25V6K 0.01U_0402_25V7Z
2
4.7U_1206_25V6K
VILIM/20=Ilimit*DCR*1.3
D D
OCP(TYP)=(0.625/20/1.3/1.4mOHM+delta I/2)*2=41A
PC116
PC117
OCP(min)=((0.625/20-2mV)/1.3/1.4mOHM+delta I/2)*2=38.83A
1U_0603_10V6K 2.2U_0603_6.3V6K PQ31
PU12
4
OCP(max)=((0.625/20+2mV)/1.3/1.4mOHM+delta I/2)*2=43.23A C*R>=L/DCR 0.47UF*PR147=0.56UH/1.4mOhm
IRF7821PBF_SO8~N
PR147=851Ohm866 Ohm
1532VCC
10 30
VCC VDD
PL10 +CPU_CORE
PR136 PR144
2 1 24 36
7 CPU_VID0 D0 V+
0_0402_5% .56UH_MPC1040LR56_ 23A_20%
0.001_2512_5%
PR137 BST5 PR138
2 1 23 26 1 2
7 CPU_VID1 D1 BSTM
1532VCC PR139 0_0402_5% 2.2_0603_5%
1 2 1 2 1 2
@ 0_0402_5% PR140 DH5 PR141 HG5
2 1 22 28 1 2
7 CPU_VID2 D2 DHM
0_0402_5% 0_0603_5%
3 4
1532REF PR142 PR143 LX5
1 2 2 1 21 27
7 CPU_VID3 D3 LXM
@0_0402_5% 0_0402_5%
PR145 DL5
2 1 20 29
7 CPU_VID4 D4 DLM
PR146 0_0402_5%
1 2
0_0402_5% PR147
2 1 19 31
7 CPU_VID5 D5 PGND
0_0402_5%
PR148 CS5+
1 2 25 37 4 4
21 VGATE VROK CMP
0_0402_5% PC121
CS5-
4 38
S0 CMN
1 2
1532VCC PR151 OAIN+ @
1 2 5 17
S1 OAIN+
PR154 0_0402_5%
OAIN- 0.47U_0603_16V7K
1 2 6 16
31 VR_ON SHDN# OAIN-
0_0402_5% PC214 PR156
TIME FB5
1 2 2 1 1 15
TIME FB
30.1K_0402_1%
C C
@0.1U_0402_16V7K PC1221 2 PR157 820_0402_5%
12 14 1 2
CCV CCI
PR158 PC123 470P_0402_50V8J
1 2
270P_0402_50V7K BST6
1 2 2 35
TON BSTS
200K_0402_1%
1532REF DH6
1 2 8 33
REF DHS
PR161 PR159
1 2
PC124 0.22U_0603_16V7K LX6 3K_0402_1% PR202
1 2 9 34
ILIM LXS
90.9K_0402_1%
0_0402_5%
+5VS
FB5 DL6 PD26
1 2 7 32
OFS DLS
PR162 BST5 PR163
2
100K_0402_1% CS6+
3 40 1 1 2 1 2
SUS CSP
0_0402_5%
3
VCCSENSE 7
PC126 CS6- PC125
18 39
SKIP CSN
100P_0402_50V8J RB717F_SOT323 0.022U_0402_16V7K~N PR165 PR203
D
11 13 1 2 1 2
D GND GNDS VSSSENSE 7
PR166
1 2 2
6,16,17 H_DPSLP#
CPU_B+
0_0402_5% G 100_0402_5% 0_0402_5%
2
S G PR174
S MAX1532AETL_TQFN40 0_0603_5%
CPU Remote -
PQ34
PR169 RHU002N06_SOT323 PR168 - Sensing Pairs.
1 2
+3VS
@100K_0402_1%
PR170
PQ36 PC130 PC131
1 2
6,17 H_DPRSLP
0_0402_5% IRF7821PBF_SO8~N
PR171
2 1
+3VS
100K_0402_1% LX5
4
4.7U_1206_25V6K
PR175 4.7U_1206_25V6K
PR176 100K_0402_1% PL11
100K_0402_1%
B B
.56UH_MPC1040LR56_ 23A_20%
D
1 2
PR195
2
G
100K_0402_1%
S
@
OAIN+ PQ39
IRF7832PBF_SO8~N PR178
2 866_0603_1%
7 H_PSI#
PQ41 PR196 PC134
4 4
100K_0402_1% 1 2
DTC115EUA_SC70 PQ40
@
0.47U_0603_16V7K
@IRF7832PBF_SO8~N
LX6
PR181
1 2
820_0402_5%
A A
OAIN+
1 2
PC211
@1000P_0402_50V7K
OAIN+
1 2
PC212
Compal Electronics, Inc.
@1000P_0402_50V7K
Title
SCHEMATIC, M/B LA-2642P
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
Custom
B
DEPARTMENT EXCEPT AS AUTHORIZED BY COMPAL ELECTRONICS, INC. NEITHER THIS SHEET NOR THE INFORMATION IT CONTAINS 401380
MAY BE USED BY OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC.
Date: fg”N, Ng 29, 2005 Sheet 41 of 48
5 4 3 2 1
PC114
PC115
2
1
2
1
2
1
2
1
2
1
PR135
10_0402_5%
PC113
2
1
220U_25V_M
5
6
7
8
0.1U_0603_25V7K
2200P_0402_50V7K
1
2
1
2
2
1
PC118
2
1
PC119
0.01U_0402_25V7Z
0.22U_0603_16V7K
5
6
3
7
2
8
1
5
6
7
8
2
1
PR149
866_0603_1%
PR152
10_0402_5%
3
2
1
3
2
1
1
2
PC120
2
1
PQ32
IRF7832PBF_SO8~N
1
2
PQ33
IRF7832PBF_SO8~N
PR150
499_0402_1%
PR160
499_0402_1%
1
2
1
2
PR153 3K_0402_1%
@
1000P_0402_50V7K
1
2
2
1
PR164
1
2
10.7K_0402_1%
3
1
1
2
PC127
3
1
2
1
PC128
PR167
2
1
PQ35
470P_0402_50V8J
1
2
5
6
7
8
10_0402_5%
HG6
RHU002N06_SOT323
1000P_0402_50V7K
2
1
1
2
2
1
2
1
2
1
2
1
PC133
PC129
PC132
0.01U_0402_25V7Z
2200P_0402_50V7K
0.22U_0603_16V7K
2.2_0603_5%
PQ38
3
1 2
1
1
1
2
5
6
3
7
2
8
1
5
6
7
8
RHU002N06_SOT323
1
2
3
2
1
2
1
3
2
1
3
2
1
A B C D
http://hobi-elektronika.net
PR209
2 1
+5V PL15
0_0603_5%
1.2_B+ B++++
2 1
1 PR210 1
1 2
FBM-L11-322513-151LMAT_1210
PC177
20_0603_5% PD34 1U_0603_6.3V6M PQ47
RB751V_SOD323 PC174 PC176
8 1
PU18 G1 D1
0.1U_0603_25V7K 4.7U_1206_25V6K
7 2
S1/D2 D1
PC178
11 10 6 3
VCC VDD S1/D2 G2
1U_0603_6.3V6M PR211 PC179 PR212
5 4
S1/D2 S2
14 15 2 1 2 1 2 1
SKIP BST
0_0603_5% 0_0603_5% SI4914DY-T1-E3_SO8
1.2DH 0.1U_0603_16V7K
13 1
V+ DH
PL16 +1.2VMVCOREP
1.2LX
7 16 1 2
PGOOD LX
PR252 PR253
PR213 1.2DL 2.0UH_SPC-07040-2R0 GP_6A_30% PD35 +1.2VMVCORE
2 1 2 9
39 SUSP_DLY#
SHDN DL
2 1 2 1
1
0_0402_5%
5
ILIM
+
EP10QY03 @10_0402_5% 0_0402_5%
PC180
PR215 PC184
2
PR214
1 2 6
REF
60.4K_0402_1% 100P_0402_50V8J 10K_0402_1% 220U_D2_4VM_R15
12 4
TON OUT
PC181
PR216 FB
8 3
GND FB
150K_0402_1%
MAX1714BEEE+T_QSOP16~N
FB 1.0V
0.22U_0402_10V4Z
+5V
2 2
PR217
49.9K_0402_1% PR254
200K_0402_1%
@
PQ55
D
TP0610K-T1-E3_SOT23
2
G
2
9,17,18,25 NB_RST#
PQ48
S
2N7002_SOT23
PR230
10K_0402_5%
PD40
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