BQ27510-G1 Datasheet, PDF (4/39 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Direct Battery Connection

bq27510-G1
SLUS927 – APRIL 2009 ..................................................................................................................................................................................................... www.ti.com
2.5 V LDO REGULATOR⁽¹⁾
T_A = –40°C to 85°C, C_REG = 0.47 µF, 2.45 V < V_REGIN = V_BAT < 5.5 V; typical values at T_A = 25°C and V_REGIN = V_BAT = 3.6 V
(unless otherwise noted)
V_REG25
V_DO
ΔV_REGTEMP
ΔV_REGLINE
ΔV_REGLOAD
I_SHORT ⁽²⁾
PARAMETER
Regulator output voltage
Regulator dropout voltage
Regulator output change
with temperature
Line regulation
Load regulation
Short circuit current limit
TEST CONDITION
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
2.7 V ≤ V_REGIN ≤ 5.5 V, I_OUT = 16 mA
0.2 mA ≤ I_OUT ≤ 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
MIN NOM MAX UNIT
2.42 2.48 2.57 V
2.40
V
280 mV
50
0.3%
11
25 mV
34
40 mV
31
250 mA
(1) LDO output current, IOUT, is the sum of internal and external load currents.
(2) Assured by design. Not production tested.
INTERNAL TEMPERATURE SENSOR CHARACTERISTICS
T_A = –40°C to 85°C, C_REG = 0.47µF, 2.45 V < V_REGIN = V_BAT < 5.5 V; typical values at T_A = 25°C and V_REGIN = V_BAT = 3.6 V
(unless otherwise noted)
G_TEMP
PARAMETER
Temperature sensor voltage gain
TEST CONDITIONS
MIN TYP MAX UNIT
–2
mV/°C
HIGH FREQUENCY OSCILLATOR
T_A = –40°C to 85°C, C_REG = 0.47µF, 2.45 V < V_REGIN = V_BAT < 5.5 V; typical values at T_A = 25°C and V_REGIN = V_BAT = 3.6 V
(unless otherwise noted)
f_OSC
f_EIO
t_SXO
PARAMETER
Operating frequency
Frequency error^{(1) (2)}
Start-up time⁽³⁾
TEST CONDITIONS
T_A = 0°C to 60°C
T_A = –20°C to 70°C
T_A = –40°C to 85°C
MIN
–2.0%
–3.0%
-4.5%
TYP
2.097
0.38%
0.38%
0.38%
2.5
MAX
2.0%
3.0%
4.5%
5
UNIT
MHz
ms
(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.
4
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