Datasheet

bq29330
SLUS673E –SEPTEMBER 2005–REVISED MARCH 2012 www.ti.com
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 TEST CONDITIONS MIN TYP MAX UNIT
V
Cn
– V
Cn+1
= 0 V, 8 V ≤ VDD ≤ 25 V 0.950 0.975 1
V
(CELLOUT)
V
V
Cn
– V
Cn+1
= 4.5 V, 8 V ≤ VDD ≤ 25 V 0.275 0.3 0.325
REF Mode
(1)
, 8 V ≤ VDD ≤ 25 V –1% 0.975 1% V
CELL output
Mode
PACK –2% PACK/18 2% V
[Register Address = 0x03, b1(PACK) = 1, b0( VMEN) = 1]
Mode
BAT –2% BAT/18 2% V
[Register Address = 0X03, b6(BAT) = 1, b0 ( VMEN) = 1]
CMRR Common mode rejection CELL max to CELL min 40 dB
V
(CELLSLEW)
CELL output rise Min to Max 10% to 90% 9 ms
K = {CELL output (VC5 = 0 V, VC4 = 4.5 V)
0.147 0.150 0.153
–CELL output (VC5 = VC4 = 0 V)} / 4.5
K CELL scale factor
K = {CELL output (VC2 = 13.5 V, VC1 = 18 V)
0.147 0.150 0.153
–CELL output (VC2 = VC1 = 13.5 V)} / 4.5
I
(VCELLOUT)
Drive current V
Cn–
V
Cn+1
= 0 V , Vcell = 0 V, T
A
= –40° to 110° 12 18 μA
CELL output offset error CELL output (VC2 = 18 V, VC1 = 18 V)
V
ICR
–1 mV
–CELL output (VC2 = VC1 = 0 V)
R
(BAL)
Cell balance internal resistance R
DS(ON)
for internal FET switch at V
DS
= 2 V –50% 400 50% Ω
(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 TEST CONDITIONS MIN TYP MAX UNIT
RSNS = 0 –50 –205
V
(OLT)
OL detection threshold voltage range, typical
(1)
mV
RSNS = 1 –25 –102.5
RSNS = 0 –5
ΔV
(OLT)
OL detection threshold voltage program step mV
RSNS = 1 –2.5
RSNS = 0 100 475
SCC detection threshold voltage range, typical
V
(SCCT)
mV
(2)
RSNS = 1 50 237.5
RSNS is set in
FUNCTION_CTL register
RSNS = 0 25
ΔV
(SCCT)
SCC detection threshold voltage program step mV
RSNS = 1 12.5
RSNS = 0 –100 –475
SCD detection threshold voltage range,
V
(SCDT)
mV
typical
(3)
RSNS = 1 –50 –237.5
RSNS = 0 –25
ΔV
(SCDT)
SCD detection threshold voltage program step mV
RSNS = 1 –12.5
V
OL
= –25 mV (typ) –15 –25 –35
V
OL(acr)
V
OL
= –100 mV (typ) (RSNS = 0,1) –90 –100 –110 mV
OL detection threshold voltage accuracy
(1)
V
OL
= –205 mV (typ) –185 –205 –225
V
SCC
= 50 mV (typ) 30 50 70
V
(SCC_acr)
V
SCC
= 200 mV (typ) (RSNS = 0,1) 180 200 220 mV
SCC detection threshold voltage accuracy
(2)
V
SCC
= 475 mV (typ) 428 475 523
V
SCD
= –50 mV (typ) –30 –50 –70
V
(SCD_acr)
V
SCD
= –200 mV (typ) (RSNS = 0,1) –180 –200 –220 mV
SCD detection threshold voltage accuracy
(3)
V
SCD
= –475 mV (typ) –426 –475 –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
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