bq29330
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SLUS673A – SEPTEMBER 2005 – REVISED DECEMBER 2005
ELECTRICAL CHARACTERISTICS (Continued)
CELL VOLTAGE MONITOR, T
A
= 25°C, CREG = 1
µF,
C
L
= 2.2
µF,
VCC or BAT = 14 V (unless otherwise noted)
PARAMETER
V
(CELLOUT)
REF
CELL output
PACK
BAT
CMRR
V
(CELLSLEW)
Common mode rejection
CELL output rise
TEST CONDITIONS
V
Cn
– V
Cn+1
= 0 V, 8 V
≤
VDD
≤
25 V
V
Cn
– V
Cn+1
= 4.5 V, 8 V
≤
VDD
≤
25 V
Mode
(1)
,
MIN
0.950
0.275
–1%
–2%
–2%
40
9
0.147
0.147
12
TYP
0.975
0.3
0.975
PACK/18
BAT/18
MAX
1
0.325
1%
2%
2%
UNIT
V
V
V
V
dB
ms
8 V
≤
VDD
≤
25 V
Mode
[Register Address = 0x03, b1(PACK) = 1, b0( VMEN) = 1]
Mode
[Register Address = 0X03, b6(BAT) = 1, b0 ( VMEN) = 1]
CELL max to CELL min
Min to Max 10% to 90%
K = {CELL output (VC5 = 0 V, VC4 = 4.5 V)
– CELL output (VC5 = VC4 = 0 V)} / 4.5
K = {CELL output (VC2 = 13.5 V, VC1 = 18 V)
– CELL output (VC2 = VC1 = 13.5 V)} / 4.5
V
Cn–
V
Cn+1
= 0 V , Vcell = 0 V, T
A
= –40° to 110°
CELL output (VC2 = 18 V, VC1 = 18 V)
–CELL output (VC2 = VC1 = 0 V)
R
DS(ON)
for internal FET switch at V
DS
= 2 V
0.150
0.150
18
–1
0.153
0.153
µA
mV
50%
Ω
K
CELL scale factor
I
(VCELLOUT)
V
ICR
R
(BAL)
Drive current
CELL output offset error
Cell balance internal resistance
–50%
400
(1)
Register Address = 0x04, b2(CAL0) = b3(CAL1) = 1, Register Address = 0x03, b0(VMEN) = 1
CURRENT PROTECTION DETECTION, T
A
= 25°C, CREG = 1
µF,
C
L
= 2.2
µF,
VCC or BAT = 14 V (unless otherwise noted)
PARAMETER
V
(OLT)
∆V
(OLT)
V
(SCCT)
∆V
(SCCT)
V
(SCDT)
∆V
(SCDT)
OL detection threshold voltage range, typical
(1)
RSNS = 0
RSNS = 1
RSNS = 0
RSNS = 1
RSNS = 0
RSNS = 1
RSNS = 0
RSNS = 1
RSNS = 0
RSNS = 1
RSNS = 0
RSNS = 1
V
OL
= 25 mV (min)
V
OL(acr)
OL detection threshold voltage accuracy
(1)
V
OL
= 100 mV (RSNS = 0,1)
V
OL
= 205 mV (max)
V
SCC
= 50 mV (min)
V
(SCC_acr)
SCC detection threshold voltage
accuracy
(2)
V
SCC
= 200 mV (RSNS = 0,1)
V
SCC
= 475 mV (max)
V
SCC
= –50 mV (min)
V
(SCD_acr)
SCD detection threshold voltage accuracy
(3)
V
SCC
= –200 mV (RSNS = 0,1)
V
SCC
= –475 mV (max)
15
90
185
–30
–180
–428
30
180
426
–100
–50
–25
–12.5
25
100
205
–50
–200
–475
50
200
475
35
110
225
70
–220
–523
70
220
523
mV
mV
mV
RSNS is set in
FUNCTION_CTL register
100
50
25
12.5
–475
–237.5
TEST CONDITIONS
MIN
50
25
5
2.5
475
237.5
TYP
MAX
205
102.5
UNIT
mV
OL detection threshold voltage program step
SCC detection threshold voltage range, typical
(2)
mV
mV
SCC detection threshold voltage program step
SCD detection threshold voltage range,
typical
(3)
SCD detection threshold voltage program step
mV
mV
mV
(1)
(2)
(3)
See OLV register for setting detection threshold
See SCC register for setting detection threshold
See SCD register for setting detection threshold
8
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