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BQ29729DSER Datasheet(PDF) 7 Page - Texas Instruments

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Part # BQ29729DSER
Description  Cost-Effective Voltage and Current Protection Integrated Circuit
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

BQ29729DSER Datasheet(HTML) 7 Page - Texas Instruments

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0.000
0.005
0.010
0.015
0.020
0.025
0.030
0.035
0.040
0.045
0.050
±40
±20
0
20
40
60
80
100
120
Temperature (
ƒC)
C001
0
1
2
3
4
5
6
±40
±20
0
20
40
60
80
100
120
Temperature (
ƒC)
C002
7
bq2970, bq2971, bq2972, bq2973
www.ti.com
SLUSBU9C – MARCH 2014 – REVISED MARCH 2016
Product Folder Links: bq2970 bq2971 bq2972 bq2973
Submit Documentation Feedback
Copyright © 2014–2016, Texas Instruments Incorporated
Programmable Fault Detection Thresholds (continued)
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
Release of
VOCD
Release of discharging
overcurrent detection voltage
Release when BAT – V– > 1 V
1
V
VOCC
Charging overcurrent detection
voltage
Factory Device Configuration: –45 mV to
–155 mV in 5-mV steps
TA = 25°C
–10
10
mV
TA = –40°C to
85°C
–15
15
mV
Release of
VOCC
Release of overcurrent
detection voltage
Release when VSS – V–
≥ OCC (min)
40
mV
VSCC
Short Circuit detection voltage
Factory Device Configuration: 300 mV,
400 mV, 500 mV, 600 mV
TA = 25°C
–100
100
mV
VSCCR
Release of Short Circuit
detection voltage
Release when BAT – V–
≥ 1 V
1
V
7.7 Programmable Fault Detection Timer Ranges
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
tOVPD
Overcharge detection delay time
Factory Device Configuration: 0.25 s, 1 s, 1.25 s, 4.5 s
–20%
20%
s
tUVPD
Over-discharge detection delay
time
Factory Device Configuration: 20 ms, 96 ms, 125 ms, 144
ms
–20%
20%
ms
tOCDD
Discharging overcurrent detection
delay time
Factory Device Configuration: 8 ms, 16 ms, 20 ms, 48 ms
–20%
20%
ms
tOCCD
Charging overcurrent detection
delay time
Factory Device Configuration: 4 ms, 6 ms, 8 ms, 16 ms
–20%
20%
ms
tSCCD
Short Circuit detection delay time
250 µs (fixed)
–50%
50%
µs
7.8 Typical Characteristics
VBAT = 1.5 V
Figure 1. 1.5-V IBAT Versus Temperature
VBAT = 3.9 V
Figure 2. 3.9-V IBAT Versus Temperature


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