Rainbow-electronics MAX783 Manual do Utilizador descarregar pdf (Página 21)

MAX783

Triple-Output Power-Supply Controller

for Notebook Computers

______________________________________________________________________________________ 21

Figure 6. MAX783 EV Kit Schematic

MAX783

VPPA

VPPB

VPPA

VPPB

VDD

BST3

V+ VL

D1B

DH3

LX3

C11

0.1µF

+15OUT

C12

2.2µF

L2

10µH

D6

18V

C5

150µF

C6

150µF

DL3

CS3

+3.3OUT

FB3

C14

0.01µF

SS3

R12

OPEN

R14

560Ω

TO VL

RDY5

SYNC

REF

SYNC

REF

R13

100k

C15

1µF

SW2D

PGND GND

1226

BST5

DB0

DH5

LX5

DL5

CS5

FB5

C10

0.1µF

L1

10µH

R2

20mΩ

R1

25mΩ

C3

330µF

C4

330µF

+5OUT

DA0

DA1

DB1

DB0

DA0

DA1

DB1

BC D

R5R4

D1A

R11R10

SW2

SW1

C1

33µF

SS5

ON3

ON5

SHDN

ON3

ON5

SHDN

R3 - R11 = 1MΩ

C2

33µF

C7

4.7µF

C8

1µF

C9

1µF

C13

0.01µF

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 27 28

Evaluation Kit 1
Information Included 1
ELECTRICAL CHARACTERISTICS 2
ABSOLUTE MAXIMUM RATINGS 2
MAX183 5 4
MAX183 6 4
+5V Switch-Mode Supply 8
+3.3V Switch-Mode Supply 8
HIGH-SIDE SUPPLY (VDD) 9
Figure 2. Block Diagram 10
High-Side Supply (VDD) 13
PCMCIA-Compatible 13
Programmable VPP Supplies 13
Table 2. VPP Program Codes 14
+5V Inductor (L1) 15
+3.3V Transformer (L2) 15
MOSFET Switches (N1-N4) 16
Diode D3 17
Diodes D2 and D5 17
Bypass Capacitors 17
Low-Voltage Operation 17
Layout and Grounding 18
Evaluation Kit Information 20
36-PIN PLASTIC 28
SMALL-OUTLINE 28

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