BQ27520YZFR-G4 Datasheet, PDF (5/19 Pages) Texas Instruments – System-Side Impedance Track Fuel Gauge With Integrated LDO

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DIGITAL INPUT AND OUTPUT DC CHARACTERISTICS
T_A = –40°C to 85°C, typical values at T_A = 25°C and V_REGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
Output voltage, low (SCL, SDA,
V_OL
SOC_INT , BAT_LOW ,
I_OL = 3 mA
BAT_GD )
V_OH(PP)
Output voltage, high
(BAT_LOW , BAT_GD )
I_OH = –1 mA
V_CC –
0.5
V_OH(OD)
V_IL
Output voltage, high (SDA,
SCL, SOC_INT )
Input voltage, low (SDA, SCL)
Input voltage, low ( BI/TOUT )
External pullup resistor connected to
V_CC
BAT INSERT CHECK MODE active
V_CC –
0.5
–0.3
–0.3
Input voltage, high (SDA, SCL)
1.2
V_IH
Input voltage, high ( BI/TOUT ) BAT INSERT CHECK MODE active
1.2
V_IL(CE)
V_IH(CE)
I_lkg ⁽¹⁾
Input voltage, low (CE)
Input voltage, high (CE)
Input leakage current (I/O pins)
V_REGIN = 2.8 to 4.5V
(1) Specified by design. Not production tested.
2.65
POWER-ON RESET
T_A = –40°C to 85°C, typical values at T_A = 25°C and V_REGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
V_IT+
V_HYS
Positive-going battery voltage
input at V_CC
Power-on reset hysteresis
2.05
45
bq27520-G4
SLUSB20 – NOVEMBER 2012
TYP
MAX UNIT
0.4 V
V
0.6
V
0.6
V_CC +
V
0.3
0.8
V
0.3 μA
TYP
MAX UNIT
2.15
2.20 V
115
185 mV
2.5V LDO REGULATOR
T_A = –40°C to 85°C, C_LDO25 = 1μF, V_REGIN = 3.6V (unless otherwise noted)
PARAMETER
TEST CONDITION
V_REG25
Regulator output voltage (V_CC)
2.8V ≤ V_REGIN ≤ 4.5V, I_OUT ≤ 16mA
2.45V ≤ V_REGIN < 2.8V (low battery),
I_OUT ≤ 3mA
MIN
NOM
MAX UNIT
2.3
2.5
2.6 V
2.3
V
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
2.097
32.768
UNIT
MHz
kHz
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