Intel AXXRSBBU4 User Manual
Intel® RAID Smart Battery AXXRSBBU4 Technical Product Specification
Hardware
Revision 1.2
Intel order number E20188-002
5
2.4 Connecting Cable
A 5-pin connector cable connects the battery pack to the Smart Battery circuit board.
Table 3. Interface Connector Pin-out
Pin
Signal Name
I/O
Description
1
VBATP
Input
Battery positive terminal
2 THERMISTOR
SENSE Output
Sense contact of the thermistor
3
GND
Input
Battery negative terminal
4 SCL Output
I
2
C Clock for pack monitoring
5 SDA Input
I
2
C Data for pack monitoring
2.5 Circuit Logic Board
The Intel
®
RAID Smart Battery AXXRSBBU4 is based on the Texas Instruments bq2060A SBS
v1.1-compliant Gas Gauge IC*. The SBS v1.1 IC maintains an accurate record of the available
charge. It monitors the amount of charge input in to or removed from the Intel
charge. It monitors the amount of charge input in to or removed from the Intel
®
RAID Smart
Battery AXXRSBBU4 to determine the battery capacity.
The bq2060A measures battery voltage, temperature, and current; estimates battery self-
discharge; and monitors the battery for low-voltage thresholds. It measures charge and
discharge activity by monitoring the voltage across a small-value series sense resistor between
the battery’s negative terminal and the negative terminal of the battery pack. The battery charge
is determined by monitoring this voltage and correcting the measurement for environmental and
operating conditions.
discharge; and monitors the battery for low-voltage thresholds. It measures charge and
discharge activity by monitoring the voltage across a small-value series sense resistor between
the battery’s negative terminal and the negative terminal of the battery pack. The battery charge
is determined by monitoring this voltage and correcting the measurement for environmental and
operating conditions.
See the Texas Instruments website for more information about the Texas Instruments bq2060A
SBS v1.1-compliant Gas Gauge IC*.
SBS v1.1-compliant Gas Gauge IC*.
The following lists the Intel
®
RAID Smart Battery features:
The Smart Battery circuit integrated into the battery pack
Reduced host CPU intervention
Shares I
2
C bus with the onboard EEPROM (Electronically Erasable Programmable
Read-Only Memory) for memory
Real-time battery status information
Low charge warning
Instantaneous voltage, current, and temperature warnings
Battery charge percentage remaining and at-rate information
Broadcasts event alarms to the host:
- Out-of-temperature
-
Terminate charge
-
Terminate discharge