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| BQ27520-G4 Datasheet, PDF (6/34 Pages) Texas Instruments – System-Side Impedance Track Fuel Gauge | |||
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bq27520-G4
SLUSB20B â NOVEMBER 2012 â REVISED DECEMBER 2015
www.ti.com
7.5 Electrical Characteristics: Supply Current
TA = 25°C and VREGIN = VBAT = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
ICC (1)
ISLP+ (1)
ISLP (1)
IHIB (1)
Normal operating mode current
Snooze operating mode current
Low-power storage mode current
Hibernate operating mode current
Fuel gauge in NORMAL mode
ILOAD > Sleep current
Fuel gauge in SNOOZE mode
ILOAD < Sleep current
Fuel gauge in SLEEP mode
ILOAD < Sleep current
Fuel gauge in HIBERNATE mode
ILOAD < Hibernate current
(1) Specified by design. Not production tested.
MIN TYP
118
62
23
8
MAX
UNIT
μA
μA
μA
μA
7.6 Digital Input and Output DC 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
VOL
Output voltage, low (SCL, SDA,
SOC_INT, BAT_LOW, BAT_GD)
IOL = 3 mA
VOH(PP)
Output voltage, high (BAT_LOW,
BAT_GD)
IOH = â1 mA
VCC â 0.5
VOH(OD)
Output voltage, high (SDA, SCL,
SOC_INT)
External pullup resistor connected to VCC VCC â 0.5
Input voltage, low (SDA, SCL)
â0.3
VIL
Input voltage, low (BI/TOUT)
BAT INSERT CHECK mode active
â0.3
Input voltage, high (SDA, SCL)
1.2
VIH
Input voltage, high (BI/TOUT)
BAT INSERT CHECK mode active
1.2
VIL(CE)
VIH(CE)
Ilkg (1)
Input voltage, low (CE)
Input voltage, high (CE)
Input leakage current (IO pins)
VREGIN = 2.8 to 4.5 V
2.65
(1) Specified by design. Not production tested.
TYP
MAX
0.4
0.6
0.6
VCC + 0.3
0.8
0.3
UNIT
V
V
V
V
V
μA
7.7 Power-on Reset
TA = â40°C to 85°C, typical values at TA = 25°C and VREGIN = 3.6 V (unless otherwise noted)
PARAMETER
MIN TYP
VIT+
VHYS
Positive-going battery voltage input at VCC
Power-on reset hysteresis
2.05 2.15
115
MAX
2.20
UNIT
V
mV
7.8 2.5-V LDO Regulator
TA = â40°C to 85°C, CLDO25 = 1 μF, VREGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VREG25
Regulator output voltage (VCC)
2.8 V ⤠VREGIN ⤠4.5 V, IOUT ⤠16 mA(1)
2.45 V ⤠VREGIN < 2.8 V (low battery),
IOUT ⤠3 mA
MIN TYP
2.3 2.5
2.3
(1) LDO output current, IOUT, is the total load current. LDO regulator should be used to power internal fuel gauge only.
MAX
2.6
7.9 Internal Clock Oscillators
TA = â40°C to 85°C, 2.4 V < VCC < 2.6 V; typical values at TA = 25°C and VCC = 2.5 V (unless otherwise noted)
PARAMETER
MIN TYP
MAX
fOSC
fLOSC
High frequency oscillator
Low frequency oscillator
8.389
32.768
UNIT
V
V
UNIT
MHz
kHz
6
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