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