MAX1908_09 Datasheet, PDF (15/30 Pages) Maxim Integrated Products – Low-Cost Multichemistry Battery Chargers

Low-Cost Multichemistry Battery Chargers
Typical Application Circuits
AC ADAPTER INPUT
8.5V TO 28V
DAC OUTPUT
V_CC
OUTPUT
ADC INPUT
ADC INPUT
HOST
C14
0.1µF
AVDD/REF
SCL
SDA
ADC INPUT
GND
RS1
D1
0.01Ω
0.1µF 0.1µF
TO EXTERNAL
LOAD
C1
2 × 10µF
R6
59kΩ
1%
R8
1MΩ
R9
20kΩ
D2
R7
19.6kΩ
C5
1%
1µF
CSSP
DCIN
LDO _VCTL
12.6V OUTPUT VOLTAGE
ICTL
REFIN
CSSN
CELLS
LDO
BST
DLOV
C20
0.1µF
R10
10kΩ
C9
0.01µF
ACIN
ACOK
SHDN
ICHG
IINP
CCV
R5
1kΩ
C11
0.1µF
CCI
CCS
C10
0.01µF
MAX1908
MAX8724
MAX8765
MAX8765A
DHI
LX
DLO
PGND
CSIP
CSIN
BATT
GND
REF
CLS
OPEN (3 CELLS SELECT)
C13
1µF
R13
33Ω
D3
C15
0.1µF
C16
1µF
N1a
N1b
L1
10µH
RS2
0.015Ω
BATT+
C4
22µF
R19, R20, R21
10kΩ
C12
7.5A INPUT
1µF
CURRENT LIMIT
SMART
BATTERY
SCL
SDA
TEMP
BATT-
PGND GND
Figure 1. µC-Controlled Typical Application Circuit
______________________________________________________________________________________ 15