Rainbow Electronics MAX782 - Manual (Page 26)

MAX782
Triple-Output Power-Supply
Controller for Notebook Computers
26 ______________________________________________________________________________________
MAX782
X2D
15
DA1
16
DA0
17
DB1
18
DB0
D1
31
BST3
33
DH3
32
LX3
30
DL3
35
CS3
C5
0.1
µ F
R3 1M
R4 1M
R5 1M
R6 1M
34
FB3
1
ON3
19
ON5
X1A X1B
2
D1
3
D2
4
D3
R8 1M
R7 1M
R9 1M
R10 1M
R11 1M
SS3
GND
PGND
SS5
36
12
26
20
R12 OPEN R13 OPEN R14 OPEN
D3B D2B D18 ON3 ON5 3.3V OUT
X2C X2B X2A
5
VH
28
VL
9
VPPA
11
VPPB
10
VDD
24
BST5
22
DH5
23
LX5
25
DL5
21
CS5
27
FB5
13
REF
14
SYNC
8
Q1
7
Q2
6
Q3
C4 0.1
µ F
D1
R17 100k
C3 1
µ F
20V
V+
29
C2 4.7
µ F
N1 N3
N2 N4
16V
D2 EC11FS1
L2
D4 1N5819
C6 330
µ F
10V
R2
0.02
Ω
5V OUT +15V OUT
C6
2.2
µ F
25V
R16 560
Ω
C11 1
µ F
35V
C10 1
µ F
35V
C13
33
µ F
35V
C1
33
µ F
35V
BATT IN
VPPB VPPA VH SYNC Q1 Q2 Q3
N1–N4 = Si9410DY D1 = BAW56L OR TWO 1N4148s
DA1 DA0 DB1 DB0
C7
150
µ F
10V
C16
150
µ F
10V
R1
0.025
Ω
L1
10
µ H
D3
1N5819
C9
0.01
µ F
C8 0.01
µ F
R15 OPEN
Figure 14. MAX782 EV Kit Schematic