 English |
|
|
|
|
|
|
|
| BQ27425-G2_15 Datasheet, PDF (5/39 Pages) Texas Instruments – Fuel Gauge With Integrated Sense Resistor | |||
| |||
| ◁ |
www.ti.com
bq27425-G2
SLUSB23B â OCTOBER 2012 â REVISED JUNE 2015
7.4 Thermal Information
over operating free-air temperature range (unless otherwise noted)
THERMAL METRIC(1)
bq27425-G2
YZF [DSBGA]
UNIT
15 PINS
RθJA
RθJCtop
RθJB
ÏJT
ÏJB
RθJCbot
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
70
°C/W
17
°C/W
20
°C/W
1
°C/W
18
°C/W
n/a
°C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953
7.5 Electrical Characteristics: Power-On Reset
TA = â40°C to 85°C, typical values at TA = 25°C and VREGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
VIT+
Positive-going voltage on VCC
(Regulator output)
1.98
2.20
VHYS
Power-on reset hysteresis
43
115
MAX
2.31
185
UNIT
V
mV
7.6 2.5-V LDO Regulator
TA = â40°C to 85°C, CLDO25 = 1 μF, VREGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITION
VREG25
Regulator output voltage
VIH(CE)
VIL(CE)
CE High-level input voltage
CE Low-level input voltage
2.7 V ⤠VREGIN ⤠4.5 V, IOUT ⤠5 mA
2.45 V ⤠VREGIN < 2.7 V (low
battery),
IOUT ⤠3 mA
VREGIN = 2.7 to 4.5 V
MIN
NOM
MAX UNIT
2.4
2.5
2.6
V
2.4
2.65
V
0.8
7.7 Integrating ADC (Coulomb Counter) Characteristics
TA = â40°C to 85°C; typical values at TA = 25°C and VREGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
VSR
Input voltage (1)(2)
VSR = V(SRX) â VSS
â0.04
tSR_CONV Conversion time
Single conversion
1
Resolution
14
MAX
0.04
15
VOS(SR)
INL
ZIN(SR)
Ilkg(SR)
Input offset
Integral nonlinearity error
Effective input resistance(1)
Input leakage current(1)
TA = 25°C
10
±0.007
±0.034
2.5
0.3
(1) Specified by design. Not tested in production.
(2) Limited by ISRX maximum recommend input current with some margin for the Integrated Sense Resistor tolerance.
UNIT
V
s
bits
μV
% FSR
Mâ¦
μA
Copyright © 2012â2015, Texas Instruments Incorporated
Product Folder Links: bq27425-G2
Submit Documentation Feedback
5
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese