BQ29312_15 Datasheet, PDF (3/39 Pages) Texas Instruments – FOUR CELL LITHIUM-ION

www.ti.com
bq29312
SLUS546E – MARCH 2003 – REVISED MARCH 2005
RECOMMENDED OPERATING CONDITIONS
Supply Voltage (BAT or PACK)
MIN NOM
4.5 ⁽¹⁾
MAX UNIT
25 V
V_I(STARTUP) Start-up voltage (PACK)
VC1, VC2, VC3, VC4
5.0
V
0
BAT
SR1, SR2
–0.5
0.5
V_I
Input voltage range
VC5
VCn – VC(n+1), (n = 1, 2, 3, 4 )
–0.5
3.0
V
0
5.0
PMS
0
PACK
SLEEP
0
REG
V_IH
Logic level input voltage
V_IL
SCLK, SDATA, WDI
0.8×REG
0
REG V
0.2 ×
REG
V_IH
PMS logic level
V_IL
PMS
PMS pull up/pull down resistance RPMS
V_PACK – 0.2
0
100
V_PACK V
0.2
1000 kΩ
V_O
Output voltage
OD
I_O
Output current
XALERT, SDATA
CELL
I_I
Input current,External 3.3 V REG
capacitor
SLEEP
C_(REG)
Extend CELL output filter
R_(CELL)
C_(CELL)
I_OL
Input frequency
OD
WDI
-0.5
4.7
100
100
32.768
25 V
200 µA
±10 µA
1.0 µA
µF
Ω
nF
1 mA
kHz
WDI high time
2
28 µs
T_A
Operating temperature
–25
85 °C
(1) V_(PACK) supply voltage must rise above start-up voltage on power up to enable the internal regulator which drives REG and TOUT as
required. Once V_(PACK) is above the start-up voltage, it can fall down to the minimum supply voltage and still meet the specifications of
the bq29312.
3