Rainbow-electronics MAX8724 Uživatelský manuál stáhnout pdf (Strana 14)

MAX1908/MAX8724

Low-Cost Multichemistry Battery Chargers

14 ______________________________________________________________________________________

TO EXTERNAL

LOAD

MAX1908

MAX8724

CLSREF

GND

CELLS

REFIN (4 CELLS SELECT)

DLOV

AC ADAPTER

INPUT

8.5V TO 28V

DHI

BST

BATTERY

ACIN

LDO

16.8V OUTPUT VOLTAGE

2.5A CHARGE LIMIT

4A INPUT CURRENT LIMIT

59kΩ

19.6kΩ

R11

15kΩ

R12

12kΩ

1µF

C12

1.5nF

SHDN

ICHG

IINP

R19

10kΩ

R20

10kΩ

CCV

C11

0.1µF

1kΩ

CCI

CCS

C10

0.01µF

C12

1µF

2 × 10µF

C13

1µF

C15

0.1µF

C16

1µF

LDO

R13

33Ω

CSSP CSSN

RS1

0.01Ω

10µH

RS2

0.015Ω

CSIP

CSIN

PGND

DLO

N1b

N1a

FROM HOST µP

(SHUTDOWN)

BATT

GNDPGND

22µF

BATT

REFIN

VCTL

DCIN

BATT-

THM

ICTL

R14

10.5kΩ

R15

8.25kΩ

R16

8.25kΩ

R17

19.1kΩ

R18

22kΩ

ACOK

0.01µF

Figure 2. Typical Application Circuit with Fixed Charging Parameters

Typical Application Circuits (continued)

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 26 27

MAX1908/MAX8724 1
Package Information 27

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