MAX1647 Datasheet, PDF (9/24 Pages) Maxim Integrated Products – Chemistry-Independent Battery Chargers

Chemistry-Independent
Battery Chargers
4 _GND
6 _VOUT
MAX874
VIN ²
C4
R3
R4
10
AGND
9
REF
IOUT ¹
DCIN ²
SEL ⁶
N.C.
VL ³
12 _{THM MAX1647}
C5
(NOTE 2)
5
CCI
C3
20
BST
18
DHI
LX ¹⁹
4
CCV
R2
C2
DLO ¹⁷
16
PGND
CS ⁷
15
DACV
C8
BATT ⁸
SCL ¹³
SDA ¹⁴
11
INT
D5
Q1
C9
R6
R7
D6
R5
D4*
C6
D2
M1
C7
M2
D1 L1
DC SOURCE
7.5V–28V
(NOTE 1)
D3
C1
R1B
R1A
= HIGH-CURRENT TRACES (8A MAX)
NOTE 1: C6, M2, D1, AND C1 GROUNDS MUST CONNECT TO
THE SAME RECTANGULAR PAD ON THE LAYOUT.
NOTE 2: C5 MUST BE PLACED WITHIN 0.5cm OF THE MAX1647,
WITH TRACES NO LONGER THAN 1cm CONNECTING
VL AND PGND.
*OPTIONAL (SEE NEGATIVE INPUT VOLTAGE PROTECTION SECTION).
HOST & LOAD
-T D
C+
SMART BATTERY
STANDARD CONNECTOR
Figure 3. MAX1647 Typical Application Circuit
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