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MAX1667 Datasheet, PDF (25/28 Pages) Maxim Integrated Products – Chemistry-Independent, Level 2 Smart Battery Charger | |||
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Chemistry-Independent,
Level 2 Smart Battery Charger
7) The SEL pin digitally limits the output current to 4A,
3A, or 1A without a change in sense resistor value
between the three modes.
8) The single count current-sense voltage has been
changed to 5mV. R1 required is now 40mâ¦.
9) After the AlarmWarning() message, the charger is
not locked off. Subsequent ChargingVoltage() or
ChargingCurrent() commands allow the MAX1667
to resume the charge.
10) The Alert-Response address is 0x13 (0b00010011).
When upgrading a MAX1647 design, follow these rec-
ommended or required changes (part numbers refer to
Figure 3 of the MAX1647 data sheet):
1) Change R1 to 40m⦠(required).
2) Remove diodes D5 and D6, transistor Q1, and resis-
tor R6. Connect IOUT directly to BATT (recommend-
ed).
3) Remove the external +4.096V reference (recom-
mended).
4) Remove D6 (recommended). When doing this, also
place a small-signal diode in series with R7 and con-
nect it directly to the DC source (see D3 and R5 on
Figure 3 of the MAX1647 data sheet).
TOP VIEW
Pin Configuration
IOUT 1
DCIN 2
VL 3
CCV 4
CCI 5
SEL 6
CS 7
BATT 8
REF 9
AGND 10
MAX1667
20 BST
19 LX
18 DHI
17 DLO
16 PGND
15 DACV
14 SDA
13 SCL
12 THM
11 INT
SSOP
Chip Information
TRANSISTOR COUNT: 6378
SUBSTRATE CONNECTED TO AGND
______________________________________________________________________________________ 25
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