BQ29312_15 Datasheet, PDF (4/39 Pages) Texas Instruments – FOUR CELL LITHIUM-ION

bq29312
SLUS546E – MARCH 2003 – REVISED MARCH 2005
ELECTRICAL CHARACTERISTICS
T_A = 25°C, C_(REG) = 4.7 µF, BAT = 14 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
SUPPLY CURRENT
No load at REG, TOUT, XALERT, SCLK, and SDATA.
I_CC1
Supply current 1
ZVCHG = off ,VMEN = on, WDI no clock,
Select VC5 = VC4 = 0 V
I_CC2
Supply current 2
(Depends of VM
topology selected)
No load at REG, TOUT, XALERT, SCLK, and SDATA.
ZVCHG = off, VMEN = off, WDI no clock
I_(SLEEP)
Sleep current
No load at REG, TOUT, XALERT, SCLK, and
SDATA.CHG, DSG and ZVCHG = off, REG = on,
VMEN = off, WDI no clock, SLEEP = REG or OPEN
I_(SHIP)
Ship current
REG, CHG, DSG and ZVCHG = off, REG = off,
VMEN = off, WDI no clock, VPACK= 0 V
3.3 V LDO
V_(REG)
Regulator output
voltage
∆V_(EGTEMP)
Regulator output
change with
temperature
8.0 V < BAT or PACK ≤ 25 V, I_O ≤ 25 mA
6.5 V < BAT or PACK ≤ 8 V, I_O ≤ 25 mA
5.4 V ≤ BATor PACK ≤ 6.5 V, I_O ≤ 16 mA
4.5 V ≤ BAT or PACK ≤ 25 V, I_O ≤ 2 mA
5.4 V ≤ BAT ≤ 25 V, I_O = 2 mA,
∆V_(REGLINE) Line regulation
∆V_(REGLOAD) Load regulation
I_MAX
Current limit
5.4 V ≤ BAT or PACK ≤ 25 V, I_O = 2 mA
BAT = 14 V, 0.2 mA ≤ I_O ≤ 2 mA
BAT = 14 V, 0.2 mA ≤ I_O ≤ 25 mA
BAT = 14 V, REG = 3.0 V
BAT = 14 V, REG = 0 V
CELL VOLTAGE MONITOR
V_{(CELL OUT)} CELL output
REF
CELL output
V_(Cn) – V_{(Cn + 1)} = 0 V, 8.0 V ≤ BAT or PACK ≤ 25 V
V_(Cn) – V_{(Cn + 1)} = 4.5 V, 8.0 V ≤ BAT or PACK ≤ 25 V
Mode⁽¹⁾, 8.0 V ≤ BAT or PACK ≤ 25 V
T_A = –25°C to 85°C
T_A = –25°C to 85°C
T_A = –25°C to 85°C
T_A = –25°C to 85°C
T_A = –25°C to 85°C
T_A = –25°C to 85°C
PACK
CELL output
Mode ⁽²⁾
K
VICR
R_(BAL)
CELL scale factor
CELL output offset
error
Cell balance internal
resistance
K = (CELL output (VC5 = 0.0 V, VC4 = 4.5 V)
– CELL output (VC5 = VC4 = 0.0 V)/ 4.5
K = (CELL output (VC2 = 13.5 V, VC1 = 18.0 V)
– CELL output (VC2 = VC1 = 13.5 V)/ 4.5
CELL output (VC2 = 17.0 V, VC1 = 17.0 V)
CELL output (VC2 = VC1 = 0.0 V)
rds_(ON) for internal FET switch at V_DS = 2.0 V
(1) Register Address =0x04, b2(CAL0) = b3(CAL1) = 1, Register Address = 0x03, b0(VMEN) = 1
(2) Register Address = 0x03, b1(PACKOUT) = 1, b0( VMEN) = 1
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MIN TYP MAX UNIT
60
90
µA
100
25
50 µA
20
40 µA
0.1
1.0 µA
–4%
3.3
–9%
3.3
–9%
3.3
–2%
3.3
±0.2%
3
7
40
25
12
2%
V
2%
2% V
2% V
10 mV
15
mV
100
100
mA
50
–1%
–5%
0.975
0.3
0.975
PACK/
25
V
1% V
5% V
0.147 0.150 0.153
0.147 0.150 0.153
–1
mV
200
400
800 Ω
4