Rainbow Electronics MAX1585 - Manual (Page 13)

MAX1584/MAX1585
5-Channel Slim DSC Power Supplies
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MAX1585
OSC
CCSU
CCSD
CC1
CC2
CC3
ONSU
ONSD
ON1
ON2
ON3
330pF
R1
47k Ω R2
25k Ω R3
20k Ω R5
10k Ω
R4
61.9k Ω
GND
TO PVSU
FBSD
LXSD
PVSD
PVSU
LXSU
DL1
FB1
DL3
FB3
CURRENT-
MODE
STEP-
DOWN
CURRENT-
MODE
STEP-UP
FBSU
-7.5V
-CDD
BIAS
DL2
FB2
REF
1.25V
REF
PGSU
PV
AUX3 V-MODE
STEP-DOWN
PWM
AUX2
V-MODE
INV
PWM
AUX1
V-MODE
STEP-UP
PWM
TO V IN
PGSD
C11
47
µF
C9
30 µF
C8
4.7 µF
0.1 µF
C1
0.01 µF
20k Ω
+15V, 80mA
+CCD
LCD
LED
+1.5V
250mA
CORE
C24
10 µF
L6
3.6
µH
V IN
1.5V TO 4.2V
5V 1A
MAIN SYSTEM
C19
10
µF
L1
5 µH
TO V IN OR PVSU
INDL2
TO PVSU
OR V
IN
3.3V
250mA
LOGIC
SCF
R12
274k
Ω
R13
90.9k
Ω
D4
P1
D2
R8
526k Ω
R9
93.1k Ω
P2
D3
L4
10 µH
C25
47 µF R14
30.1k
Ω
R15
18.2k
Ω
N1
D1
L3
2
µH
C6
4.7
µF
R6
1M Ω
R7
90.9k
Ω
L2
22 µH
R10
18.2k
Ω
R11
90.9k
Ω
C2
4700pF
C3
1500pF
C5
1500pF
TO FB3
R22
1.2k
Ω
C20
560pF
C4
470pF
AUX1OK
SDOK
C23
10
µF
Figure 1. MAX1584/MAX1585 Typical Application for 2-Cell AA or 1-Cell Li+ Battery