BQ27510-G3 Datasheet, PDF (4/20 Pages) Texas Instruments – System-Side Impedance Track Fuel Gauge With Direct Battery Connection

bq27510-G3
SLUSAT1 – MARCH 2013
RECOMMENDED OPERATING CONDITIONS (continued)
T_A = 25°C, V_CC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITION
V_A3
t_PUCD
T_A
Input voltage range (SRP, SRN)
Power-up communication delay
Operating free-air temperature range
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MIN
V_SS–0.125
–40
TYP
250
MAX
0.125
85
UNIT
V
ms
°C
2.5 V LDO ⁽¹⁾
T_A = 25°C, C_REG = 0.47 μF, V_REGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITION
V_REG25
V_DO
ΔV_REGTEMP
Regulator output voltage
Regulator dropout voltage
Regulator output change
with temperature
2.7 V ≤ V_REGIN ≤ 5.5 V,
I_OUT ≤ 16mA
2.45 V ≤ V_REGIN < 2.7 V (low
battery), I_OUT ≤ 3mA
2.7 V, I_OUT ≤ 16 mA
2.45 V, I_OUT ≤ 3 mA
V_REGIN = 3.6 V, I_OUT = 16 mA
T_A = –40°C to 85°C
T_A = –40°C to 85°C
T_A = –40°C to 85°C
T_A = –40°C to 85°C
ΔV_REGLINE
ΔV_REGLOAD
I_SHORT ⁽²⁾
Line regulation
Load regulation
Short circuit current limit
2.7 V ≤ V_REGIN ≤ 5.5 V, I_OUT = 16 mA
0.2 mA ≤ I_{O UT} ≤ 3 mA, V_REGIN = 2.45 V
3 mA ≤ I_OUT ≤ 16 mA, V_REGIN = 2.7 V
V_REG25 = 0 V
T_A = –40°C to 85°C
(1) LDO output current, IOUT, is the sum of internal and external load currents.
(2) Assured by design. Not production tested.
POWER-ON RESET
T_A = –40°C to 85°C, typical values at T_A = 25°C and V_BAT = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V_IT+
V_HYS
Positive-going battery voltage input at V_CC
Power-on reset hysteresis
MIN NOM MAX UNIT
2.4 2.5 2.6 V
2.40
V
280 mV
50
0.3%
11
25 mV
34
40 mV
31
250 mA
MIN TYP MAX UNIT
2.05 2.20 2.31 V
45 115 185 mV
INTERNAL TEMPERATURE SENSOR CHARACTERISTICS
T_A = –40°C to 85°C, 2.4 V < V_CC < 2.6 V; typical values at T_A = 25°C and V_CC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX
G_TEMP
Temperature sensor voltage gain
–2
UNIT
mV/°C
INTERNAL CLOCK OSCILLATORS
T_A = –40°C to 85°C, 2.4 V < V_CC < 2.6 V; typical values at T_A = 25°C and V_CC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
f_OSC
f_LOSC
High Frequency Oscillator
Low Frequency Oscillator
8.389
32.768
UNIT
MHz
kHz
INTEGRATING ADC (COULOMB COUNTER) CHARACTERISTICS
T_A = –40°C to 85°C, 2.4 V < V_CC < 2.6 V; typical values at T_A = 25°C and V_CC = 2.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
V_{SR_IN}
t_{SR_CONV}
Input voltage range, V_(SRN) and V_(SRP)
Conversion time
Resolution
V_SR = V_(SRN) – V_(SRP)
Single conversion
–0.125
14
0.125
1
15
V_{SR_OS}
I_NL
Input offset
Integral nonlinearity error
10
±0.007 ±0.034
UNIT
V
s
bits
μV
%FSR
4
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