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BQ77904 Datasheet(PDF) 9 Page - Texas Instruments

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Part # BQ77904
Description  3-5S Ultra Low-Power Voltage, Current, Temperature, and Open Wire Stackable Lithium-ion Battery Protector
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

BQ77904 Datasheet(HTML) 9 Page - Texas Instruments

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9
bq77904, bq77905
www.ti.com
SLUSCM3E – JUNE 2016 – REVISED MARCH 2017
Product Folder Links: bq77904 bq77905
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Copyright © 2016–2017, Texas Instruments Incorporated
(1)
Not production tested parameters. Specified by design
7.6 Timing Requirements
MIN
TYP
MAX
UNIT
PROTECTION DELAYS(1)
tOVn_DELAY
Overvoltage detection delay time
0.5 s Delay Option
0.4
0.5
0.8
s
1 s Delay Option
0.8
1
1.4
2 s Delay Option
1.8
2
2.7
4.5 s Delay Option
4
4.5
5.2
tUVn_DELAY
Undervoltage detection delay time
1 s Delay Option
0.8
1
1.5
s
2 s Delay Option
1.8
2
2.7
4.5 s Delay Option
4
4.5
5.5
9 s Delay Option
8
9
10.2
tOWn_DELAY
Open-wire detection delay time
3.6
4.5
5.3
s
tOTC_DELAY
Overtemperature charge detection
delay time
3.6
4.5
5.3
s
tUTC_DELAY
Undertemperature charge detection
delay time
3.6
4.5
5.3
s
tOTD_DELAY
Overtemperature discharge
detection delay time
3.6
4.5
5.3
s
tUTD_DELAY
Undertemperature discharge
detection delay time
3.6
4.5
5.3
s
tOCD1_DELAY
Overcurrent 1 detection delay time
10 ms delay option
8
10
15
ms
20 ms delay option
17
20
26
45 ms delay option
36
45
52
90 ms delay option
78
90
105
180 ms delay option
155
180
205
350 ms delay option
320
350
405
700 ms delay option
640
700
825
1420 ms delay option
1290
1420
1620
tOCD2_DELAY
Overcurrent 2 detection delay time
5 ms delay option
4
5
8
ms
10 ms delay option
8
10
15
20 ms delay option
17
20
26
45 ms delay option
36
45
52
90 ms delay option
78
90
105
180 ms delay option
155
180
205
350 ms delay option
320
350
405
700 ms delay option
640
700
825
tSCD_RELAY
Short-circuit detection delay time
360 µs delay option
220
400
610
µs
tCD_REC
Overcurrent 1, Overcurrent 2, and
Short-circuit recovery delay time
1 s option
0.8
1
1.4
s
9 s option
8
9
10.2


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