Datasheet

Intel® RAID Smart Battery AXXRSBBU7 Technical Product Specification Hardware
Revision 1.0
Intel order number E70473-001
7
Pin Signal Name Signal Type
6 GND GND
7 +3.3 V Input
8 GND GND
9 DDR – Rail (2.5 V – 1.8 V) In power / out power, depending on mode
10 GND GND
11 AUXPWR_3.3V Input
12 GND GND
13 SCL Input / output
14 GND GND
15 SDA Input / output
16 PFAIL# Output
17 SPARE N/A
18 XD0-BBE Input
19 BBSTROBE Output
20 BBSTATUS Output
2.6 Battery Module
The battery module includes components and states of operation as described below.
2.6.1 Internal Connecting Cable
Within the battery module, a 5-pin connector cable connects the battery pack to the Smart
Battery circuit board.
Table 5. 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
2.6.2 Circuit Logic Board
The Intel
®
RAID Smart Battery AXXRSBBU7 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 into or removed from the Intel
®
RAID Smart
Battery AXXRSBBU7 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