MAX1660 Datasheet, PDF (12/20 Pages) Maxim Integrated Products – Digitally Controlled Fuel-Gauge Interface

Digitally Controlled
Fuel-Gauge Interface
Table 4a. OCO Logic Truth Table
OCHI BIT
0
0
0
1
1
OCLO BIT
0
0
1
0
1
OCSTATUS BIT
0
1
X
X
X
OCO OUTPUT
GND
HI-Z
GND
HI-Z
OCICMP
STATE
Automatic overcurrent protection (default)
Overcurrent detected
Force-charge path on
Force-charge path off
Free running
Table 4b. ODO Logic Truth Table
ODHI BIT
0
0
0
1
1
ODLO BIT
0
0
1
0
1
ODSTATUS BIT
0
1
X
X
X
ODO OUTPUT
GND
HI-Z
GND
HI-Z
ODICMP
STATE
Automatic overcurrent protection (default)
Overcurrent detected
Force-discharge path on
Force-discharge path off
Free running
M2
M1
R8 R7
PACK+
R10
R9
V_{CC SERIAL}
EEPROM
+
OCO
BATT ODO
R11
SCL
SDA
GND
SHDN
R2
CS ^{MAX1660 VL}
V_CC
C3
C1
R_CS
C5
C2
AGND
GND
R13 R14 R15 R16
µC
D1
REF
GPIO
SCL
GPIO
R5
R3
SDA
GPIO
OCI
INT
INT
ODI
RST
RST GND
R6
R4
C4
PACK-
Figure 8. Typical Application Circuit
*Patent pending
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