BQ27510-G2 Datasheet, PDF (4/38 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Direct Battery Connection

bq27510-G2
SLUS948 – AUGUST 2010
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
www.ti.com
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 mF, 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
HIGH FREQUENCY OSCILLATOR
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_EIO
t_SXO
Operating frequency
Frequency error^{(1) (2)}
Start-up time⁽³⁾
T_A = 0°C to 60°C
T_A = –20°C to 70°C
T_A = –40°C to 85°C
–2.0%
–3.0%
-4.5%
2.097
0.38%
0.38%
0.38%
2.5
2.0%
3.0%
4.5%
5
(1) The frequency error is measured from 2.097 MHz.
(2) The frequency drift is included and measured from the trimmed frequency at V_CC = 2.5 V, T_A = 25°C.
(3) The startup time is defined as the time it takes for the oscillator output frequency to be ±3% of typical oscillator frequency.
UNIT
MHz
ms
4
Submit Documentation Feedback
Copyright © 2010, Texas Instruments Incorporated