Quanta ZG8 Schematic
5
4
3
2
1
28
OCP: 7.2A
+1.05V
1.05V
PC19
PC19
33p/50V_6
33p/50V_6
PR21
PR21
10K/F_6
10K/F_6
R1
R2
VIN
PR19
PR19
4.02K/F_6
4.02K/F_6
VCCP 1.05V(DCD)
PR108
PR108
10_6
D D
PR109
PR109
1M_6
1M_6
PR110
PR110
*10K/F_6
MAINON(23,27,29)
C C
HWPG_1.05V(23)
PR18 47K_6PR18 47K_6
+3V
PR20
PR20
*10K/F_6
*10K/F_6
PC96
PC96
PC95
PC95
0.1u/50V_6
0.1u/50V_6
PC18
PC18
12
PC17
PC17
*10K/F_6 PC16
12
10_6
PC94
PC94
*0.1u/50V_6
*0.1u/50V_6
15
EN/DEM
16
TON
1
VOUT
2
VDD
PU2
PU2
UP6111AQDD
UP6111AQDD
3
FB
4
PGOOD
6
GND
5
NC
14
NC
BOOT
UGATE
PHASE
OC
VDDP
LGATE
PGND
TPAD
13
C-test
12
11
10
9
8
7
17
+5V_S5
PR17
PR17
*Short_6
*Short_6
PR16 6.04K/F_6PR16 6.04K/F_6
PD8
PD8
RB500V-40
RB500V-40
PC16
0.1u/50V_6
0.1u/50V_6
LGATE-1V
UGATE-1V
PHASE-1V
need change to +5V_S5
12
PC93
PC93
4.7u/6.3V_6
4.7u/6.3V_6
Rds*OCP=RILIM*20uA
578
3 6
241
578
3 6
241
PQ10
PQ10
AO4468
AO4468
PQ9
PQ9
AO4712
AO4712
PC90
PC90
0.1u/50V_6
0.1u/50V_6
PL4
PL4
2.2uH/14A_10X10X4.5
2.2uH/14A_10X10X4.5
PR107
PR107
*2.2/F_6
*2.2/F_6
PC89
PC89
*2200p/50V_6
*2200p/50V_6
PC15
PC15
10u/25V_1206
10u/25V_1206
+
+
PC92
PC92
220u/2.5V_3528
220u/2.5V_3528
PC91
PC91
10u/10V_8
10u/10V_8
0.1542
0.01/50V_6
*1000p/50V_6
1u/16V_6
1u/16V_6
B B
*1000p/50V_6
TON=3.85p*RTON*Vout/(Vin-0.5)
Frequency=Vout/(Vin*TON)
TON=3.85p*1M*1/(Vin-0.5)
0.01/50V_6
AO4712 Rdson=15~18mOhm
OCP=7.2-0.8A
L(ripple current)
=(19-1.05)*1.05/(2.2u*272k*19)
~1.63A
1V_FB
VOUT=(1+R1/R2)*0.75
18m*7=RILIM*20uA
Frequency=1/(0.0036767)=272K
RILIM=6K(2.5~8K)
A A
Quanta Computer Inc.
Quanta Computer Inc.
Quanta Computer Inc.
PROJECT :
PROJECT :
Size Document Number Rev
Size Document Number Rev
Size Document Number Rev
Date: Sheet of
Date: Sheet of
5
4
3
2
Date: Sheet of
PROJECT :
VCCP 1.05V(RT8202)
VCCP 1.05V(RT8202)
VCCP 1.05V(RT8202)
ZG8
ZG8
ZG8
1
1A
1A
1A
28
28
28
33Wednesday, January 21, 2009
33Wednesday, January 21, 2009
33Wednesday, January 21, 2009
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