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BQ7790503PWR Datasheet(PDF) 7 Page - Texas Instruments

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Part # BQ7790503PWR
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

BQ7790503PWR Datasheet(HTML) 7 Page - Texas Instruments

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7
bq77904, bq77905
www.ti.com
SLUSCM3G – JUNE 2016 – REVISED SEPTEMBER 2017
Product Folder Links: bq77904 bq77905
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Copyright © 2016–2017, Texas Instruments Incorporated
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
7.4 Thermal Information
THERMAL METRIC(1)
bq77904
bq77905
UNITS
PW (TSSOP)
20 PINS
RθJA
Junction-to-ambient thermal resistance
98.4
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
37
°C/W
RθJB
Junction-to-board thermal resistance
49.3
°C/W
ψJT
Junction-to-top characterization parameter
2.9
°C/W
ψJB
Junction-to-board characterization parameter
48.7
°C/W
(1)
Based on a 10 KΩ pull-up and 103AT thermistor.
7.5 Electrical Characteristics
Typical values stated at TA = 25ºC and VDD = 16 V (bq77904) or 20 V (bq77905). MIN and MAX values stated with TA =
–40ºC to +85ºC and VDD = 3 to 20 V (bq77904) or VDD = 3 to 25 V (bq77905) unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY VOLTAGE
V(POR)
POR threshold
VDD rising, 0 to 6 V
4
V
V(SHUT)
Shutdown threshold
VDD falling, 6 to 0 V
2
3.25
V
V(AVDD)
AVDD voltage
C(VDD) = 1 µF
2.1
2.5
3.25
V
SUPPLY AND LEAKAGE CURRENT
ICC
Normal mode current
(bq77904/bq77905)
Cell1 through Cell5 = 4 V,
VDD = 20 V (bq77905)
6
9
µA
I(CFAULT)
Fault condition current
State comparator on
8
12
µA
IOFF
Shutdown mode current
VDD < VSHUT
0.5
µA
ILKG(OW_DIS)
Input leakage current at VCx pins
All cell voltages = 4 V,
Open Wire disable configuration
–100
0
100
nA
ILKG(100nA)
Open-wire sink current at VCx
pins
All cell voltages = 4 V,
100 nA configuration
30
110
175
nA
ILKG(200nA)
Open-wire sink current at VCx
pins
All cell voltages = 4 V,
200 nA configuration
95
210
315
nA
ILKG(400nA)
Open-wire sink current at VCx
pins
All cell voltages = 4 V,
400 nA configuration
220
425
640
nA
PROTECTION ACCURACIES
VOV
Overvoltage programmable
threshold range
3000
4575
mV
VUV
Undervoltage programmable
threshold range
1200
3000
mV
V(VA)
OV, UV, detection accuracy
TA = 25ºC, OV detection accuracy
–10
10
mV
TA = 25ºC, UV detection accuracy
–18
18
mV
TA = 0 to 60ºC
–28
26
mV
TA = –40 to 85ºC
–40
40
mV
VHYS(OV)
OV hysteresis programmable
threshold range
0
400
mV
VHYS(UV)
UV hysteresis programmable
threshold range
200
800
mV
VOTD
Overtemperature in discharge
programmable threshold
Threshold for 65°C(1)
19.71
20.56
21.86
%VTB
Threshold for 70°C (1)
17.36
18.22
19.51
%VTB
VOTD(REC)
Overtemperature in discharge
recovery
Recovery threshold at 55°C for
when VOTD is at 65°C
(1)
25.24
26.12
27.44
%VTB
Recovery threshold at 60°C for
when VOTD is at 70°C
(1)
22.12
23.2
24.24
%VTB


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