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BQ294582DRVT Datasheet(PDF) 5 Page - Texas Instruments

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Part # BQ294582DRVT
Description  Overvoltage Protection for 2-Series and 3-Series Cell Li-Ion Batteries
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ294582DRVT Datasheet(HTML) 5 Page - Texas Instruments

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bq294502, bq294504, bq294512, bq294515
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bq294572, bq294582, bq294592
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SLUSAJ3C – SEPTEMBER 2011 – REVISED MAY 2012
DC CHARACTERISTICS
Typical values stated where TA = 25°C and VDD = 10.8 V, MIN/MAX values stated where TA = –40°C to 110°C and VDD =
3 V to 15 V (unless otherwise noted).
Symbol
Parameter
Condition
Min
Typ
Max
Unit
Voltage Protection Threshold VCx
1.0
bq294502, fixed delay 4 s
4.35
V
1.1
bq294504, fixed delay 6.5 s
4.35
V
1.2
bq294512, fixed delay 4 s
4.40
V
1.3
bq294515, fixed delay 4 s
4.425
V
1.4
bq294522, fixed delay 4 s
4.45
V
V(PROTECT)
1.5
bq294524, fixed delay 6.5 s
4.45
V
VOV
Overvoltage
1.6
bq294532, fixed delay 4 s
4.50
V
Detection
1.7
bq294562, fixed delay 4 s
4.25
V
1.8
bq294572, fixed delay 4 s
4.00
V
1.9
bq294582, fixed delay 4 s
4.225
V
1.10
bq294584, fixed delay 6.5 s(1)
4.225
V
1.11
bq294592, fixed delay 4 s
4.30
V
Overvoltage
1.12
VHYS
Detection
250
300
400
mV
Hysteresis
OV Detection
1.13
VOA
TA = 25°C
–10
10
mV
Accuracy
TA = -40°C
-40
44
mV
OV Detection
TA = 0°C
-20
20
mV
1.14
VOA –DRIFT
Accuracy due to
TA = 60°C
-24
24
mV
Temperature
TA = 110°C
-54
54
mV
Supply and Leakage Current
(V3–V2) = (V2–V1) = (V1–VSS) = 4.0 V (See
1
2
Figure 11 for reference)
1.15
ICC
Supply Current
µA
(V3–V2) = (V2–V1) = (V1–VSS) = 2.8 V with TA =
1.25
–40°C to 60°C
Measured at V3, V2, and V1 = 4.0 V
Input Current at
1.16
IIN
(V2–V1) = (V1–VSS) = 4.0 V
–0.1
0.1
µA
Vx Pins
TA = 0°C to 60°C (See Figure 11 for reference.)
Output Drive OUT
(V3–V2) or (V2–V1) or (V1–VSS) > VOV
1.17
6
V
VDD = 7.2 V, IOH = 100 µA, TA = –40°C to 110°C
Two of the three cells are short circuit and only one
cell is powered
VDD –
1.18
Output Drive
(V3–V2) or (V2–V1) or (V1–VSS) > VOV
V
VOUT
0.2
Voltage
VDD = Vx (Cell voltage), IOH = 100 µA, TA = –40°C to
110°C
(V3–V2), (V2–V1), and (V1–VSS) < VOV, IOL = 100
1.19
µA, TA = 25°C
250
400
mV
TA = –40°C to 110°C
OUT Short
1.20
IOUT(Short)
OUT = 0 V (V3–V2) or (V2–V1) or (V1–VSS) > VOV
4.5
mA
Circuit Current
Output Rise
1.21
tR
CL = 1 nF, VOH(OUT) = 0 V to 5 V
(2)
5
µs
Time
Output
1.22
ZO
2
5
k
Impedance
Fixed Delay Timer
Fixed Delay, bq2945x2
3.2
4
4.8
Fault Detection
1.23
tDELAY
s
Delay Time
Fixed Delay, bq2945x4
5.2
6.5
7.8
(1)
Product Preview only
(2)
Specified by design. Not 100% tested in production.
Copyright © 2011–2012, Texas Instruments Incorporated
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bq294572 bq294582 bq294592


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