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BQ3050DBT Datasheet(PDF) 9 Page - Texas Instruments

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Part # BQ3050DBT
Description  2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager
Download  28 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ3050DBT Datasheet(HTML) 9 Page - Texas Instruments

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bq3050
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SLUSA92A
– JANUARY 2011 – REVISED JUNE 2011
ELECTRICAL CHARACTERISTICS: CHG, DSG FET Drive (continued)
Typical values stated where TA = 25
ºC and VCC = 14.4 V, Min/Max values stated where TA= –40ºC to 85ºC and VCC = 3.8 V
to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CL= 4700 pF
RG= 5.1 kΩ
VCC
< 8.4
800
1400
μs
VDSG: VBAT to VBAT + 4 V
VCHG: VPACK to VPACK + 4 V
tr
Rise time
CL = 4700 pF
RG = 5.1 kΩ
VCC
> 8.4
200
500
μs
VDSG: VBAT to VBAT + 4 V
VCHG: VPACK to VPACK + 4 V
CL= 4700 pF
RG= 5.1 kΩ
VDSG: VBAT + VO(FETONDSG) to VBAT
tf
Fall time
80
200
μs
+ 1 V
VCHG: VPACK + VO(FETONCHG) to
VPACK + 1 V
ELECTRICAL CHARACTERISTICS: INTERNAL PRE-CHARGE LIMITING
Typical values stated where TA = 25
ºC and VCC = 14.4 V, Min/Max values stated where TA= –40ºC to 85ºC and VCC = 3.8 V
to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IPCHGMAX
Maximum Pre-charge current
3-cell and 4-cell configuration
100
mA
VDS(PRECHG) ≥ 1 V, VCC < 8.4 V
30
55
85
Ω
RPCHG_RDS
Internal Pre-charge FET RDSON
ON
VDS(PRECHG) ≥ 1 V, VCC ≥ 8.4 V
15
30
55
Ω
ELECTRICAL CHARACTERISTICS: GPOD
Typical values stated where TA = 25
ºC and VCC = 14.4 V, Min/Max values stated where TA= –40ºC to 85ºC and VCC = 3.8 V
to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VPU_GPOD
GPOD Pull-Up Voltage
VCC
V
VOL_GPOD
GPOD Output Voltage Low
IOL = 1 mA
0.3
V
ELECTRICAL CHARACTERISTICS: FUSE
Typical values stated where TA = 25
ºC and VCC = 14.4 V, Min/Max values stated where TA= –40ºC to 85ºC and VCC = 3.8 V
to 25 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VCC = 3.8 V to 9 V
2.4
8.5
V
VOH(FUSE)
High Level FUSE Output
VCC = 9 V to 25 V
7
8
9
V
2.8
V
VIH(FUSE)
Weak pull-up current in off state(1)
100
nA
CL = 1 nF, VCC = 9 V to 25 V,
tR(FUSE)
FUSE Output Rise Time
5
20
μs
VOH(FUSE) = 0 V to 5 V
ZO(FUSE)
FUSE Output Impedance
2
5
k
Ω
(1)
Verified by design. Not production tested.
Copyright
© 2011, Texas Instruments Incorporated
9


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