DS2790G+T&R Maxim Integrated Products, DS2790G+T&R Datasheet - Page 33

• Manufacturer Part Number: DS2790G+T&R
• Description: IC FUEL GAUGE BATT 28-TDFN
• Manufacturer: Maxim Integrated Products

Specifications of DS2790G+T&R

• Function: Fuel, Gas Gauge/Monitor
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TDFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Field
IBIAS
COCT
DOCT
SCDT
Reserved
OBEN
Figure 16. Temperature Register Format
ADC Configuration Register
The ADC Configuration register located at word address 600Ah controls current measurement bias and offset
blanking as well as current fault limits for the protector circuitry. ADC Configuration register bits are read and write
accessable by application code. COCT, DOCT, and SCDT bit functionality is described under Lithium-Ion
Protection.
Figure 17. ADC Configuration Register Format
ADDRESS
MSb
“S”: sign bit
S
600AH
15:8
7:6
5:4
2:1
Bit
2
3
0
9
2
8
2
7
Read Only
Format
R/W
R/W
R/W
R/W
R/W
2
6
2
5
Word Address 6005h
2
4
Accumulation Register Bias
8-bit 2’s complement value that is added to the ACR on every
update.
Charge Overcurrent Threshold⎯See Lithium-Ion Protection. See
V
0 0 = 16mV V
0 1 = 32mV V
1 0 = 48mV V
1 1 = 64mV V
Discharge Overcurrent and Short Circuit Thresholds⎯See
Lithium-Ion Protection. See V
for limit tolerances.
0 0 = 16mV V
0 1 = 32mV V
1 0 = 48mV V
1 1 = 64mV V
Short Circuit Delay Time⎯See Lithium-Ion Protection. See
the specification table for limit tolerances.
0 = 250µs
1 = 2.0ms
Undefined
Offset Blanking Enable
0 = All current measurements accumulated into the ACR.
1 = Positive current measurements less than 62.5µV/R
accumulated into the ACR.
OC
33 of 41
2
in the specification table for limit tolerances.
3
2
2
OC
OC
OC
OC
OC
OC
OC
OC
2
, 100mV V
, 140mV V
, 180mV V
, 220mV V
1
2
0
Allowable Values
BIT DEFINITION
SC
SC
SC
SC
X
OC
and V
X
Units: 2
X
SC
in the specification table
0
X
= 0.125°C
LSb
X
SNS
not
t
SCD
in