BQ27421-G1 Datasheet, PDF (5/20 Pages) Texas Instruments – System-Side Impedance Track™ Fuel Gauge With Integrated Sense Resistor

bq27421-G1
www.ti.com
SLUSB85 – MAY 2013
DIGITAL INPUT AND OUTPUT DC CHARACTERISTICS
T_A = –40°C to 85°C, typical values at T_A = 30°C and V_REGIN = 3.6 V (unless otherwise noted)(Force Note1)⁽¹⁾
PARAMETER
TEST CONDITIONS
MIN
TYP
V_IH(OD)
V_IH(PP)
V_IL
V_OL
I_OH
Input voltage, high ⁽²⁾
Input voltage, high ⁽³⁾
Input voltage, low ^{(2) (3)}
Output voltage, low ⁽²⁾
Output source current, high ⁽²⁾
(3)
External pullup resistor to V_PU
V_PU * 0.7
1.4
I_OL(OD)
C_IN ⁽¹⁾
I_lkg
Output sink current, low ⁽²⁾
Input capacitance ^{(2) (3)}
Input leakage current (I/O pins)
(2) (3)
MAX
0.6
0.6
0.5
-3
5
1
UNIT
V
V
V
V
mA
mA
pF
μA
(1) Specified by design. Not production tested.
(2) Open Drain pins: (SCL, SDA, GPOUT )
(3) Push Pull pin: (BIN )
LDO REGULATOR, WAKE-UP AND AUTO-SHUTDOWN DC CHARACTERISTICS
T_A = –40°C to 85°C, typical values at T_A = 30°C and V_REGIN = 3.6 V (unless otherwise noted)(Force Note1)⁽¹⁾
PARAMETER
TEST CONDITIONS
MIN
TYP
V_BAT
V_DD
UVLO_IT+
BAT pin regulator input
Regulator output voltage
V_BAT Under Voltage Lock Out
LDO Wake-Up Rising
Threshold ⁽²⁾
2.45
1.8
2.0
UVLO_IT-
V_WU+ ⁽¹⁾
V_BAT Under Voltage Lock Out
LDO Auto-Shutdown Falling
Threshold ⁽²⁾
GPOUT (input) LDO Wake-Up
rising edge threshold ⁽²⁾
LDO Wake-up from SHUTDOWN
mode
1.95
1.2
MAX
4.5
UNIT
V
V
V
V
V
(1) Specified by design. Not production tested.
(2) If the device is commanded to SHUTDOWN via I2C with V_BAT > UVLO_IT+ , a wake-up rising edge trigger is required on GPOUT .
Copyright © 2013, Texas Instruments Incorporated
Product Folder Links: bq27421-G1
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