unitrode EV2014, Руководство пользователя, Страница: 5 / 13

VSR Step This is the value of the V
SR
current step
as defined in the bq2014 data sheet.
GG Step This is the lower four bits of the TMPGG
register that correspond to the current
NAC value relative to either the LMD or
the original programmed full count (as
determined by PROG
1-4
). The GG step is
reported as a step number from 0 to 15,
with step 0 representing available capacity
from 0 to
1
16
of full, and 15 representing
available capacity from
15
16
full to full.
Charge
Rate Indicates whether the present charge is
TRICKLE or FAST depending on the
state of the charge rate (CR) bit in
FLGS2.
First EDV This is the state of the EDV1 flag as pro-
grammed in the Display Program Menu.
The default is 1.05V. The EDV1 flag
latches ON if V
SB
drops below the EDV1
threshold value. It remains latched until
charging is detected, at which time it is
cleared.
Cell voltage This is the cell voltage at the SB pin of
the bq2014.
Battery
voltage This multiplies the cell voltage by the
number of cells programmed in the Dis-
play Program Menu. The default is one
cell.
Battery
Removed This is the state of the battery removed
flag. It is set (BRM = yes) if one of the
conditions indicating battery removed oc-
curs. This flag is reset when the battery
is replaced.
Valid
Discharge This is the state of the VDQ bit in
FLGS1.
VDQ = yes if the bq2014 is
charged until NAC = LMD. VDQ = no indi-
5
EV2014
Benchmarq BQ2014 Evaluation Board Real-Time Monitor Screen
Time: 99:99:99 EMPTY ****_____FULL Date: 99-99-9999
NAC: 99999 mAH LMD: 99999 mAH Sense Resistor Value: XXXm
Ω
Avg Vsr Current:
±
9999mA Time remaining: 9999 min.
Digital Filter Setting: -0.XXmV=Vsrd +0.XXmV=Vsrq Temp Step: XX
Activity: XXXXX Vsr Current Step: XX GG Step: XX
Charge Rate: XXXX First EDV: XXX Batt. Rem'vd: XXX
Valid Discharge: XXX Final EDV: XXX Batt. Repl'd: XXX
Cell Voltage: XXX V Batt. Voltage: XXX V
Capacity Inaccurate: XXX Capacity Inaccurate Count: XXX
FLGS1: X X X X X _ X X FLGS2: X X X X _ _ _ X
C B B C V N E E C D D D N N N O
H R R I D / D D R R R R / / / V
G P M Q U V V 2 1 0 U U U L
S 1 F D
ESC to main menu F1 to modify NAC F2 to modify LMD
Figure 2. Real-Time Monitor Screen
Rev. B Board