BQ34210-Q1 Datasheet, PDF (5/19 Pages) Texas Instruments – Automotive 1-Series Cell System-Side CEDV Fuel Gauge for Rarely Discharged Batteries

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bq34210-Q1
SLUSCG1 – AUGUST 2017
Digital Input and Output DC Characteristics (continued)
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
MAX
C_IN ⁽¹⁾
Input capacitance⁽²⁾⁽³⁾
5
I_lkg
Input Leakage Current⁽²⁾⁽³⁾
1
(3) TS
UNIT
pF
μA
6.7 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
MAX
UNIT
V_REGIN
V_REG18
UVLO_IT+
Battery and regulator input
Regulator output voltage
V_REGIN undervoltage lock-out
LDO wake-up rising threshold
2.45
1.85
2
4.5
V
V
V
UVLO_IT–
V_REGIN undervoltage lock-out
LDO auto-shutdown falling threshold
1.95
V
V_WU+ ⁽¹⁾
ALERT (input) LDO Wake-up rising LDO Wake-up from SHUTDOWN
edge threshold⁽²⁾
mode
1.2
V
t_ALERT
Minimum ALERT high time after
V_WU+ to initiate Wake up
1
ms
(1) Specified by design. Not production tested.
(2) If the device is commanded to SHUTDOWN via I²C with V_REGIN > UVLO_IT+, a wake-up rising edge trigger is required on ALERT.
6.8 LDO Regulator, Wake-up, and Auto-Shutdown AC Characteristics
T_A = –40°C to 85°C, typical values at T_A = 30°C and V_REGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
t_SHDN ⁽¹⁾
SHUTDOWN entry time
Time delay from SHUTDOWN
command to LDO output disable.
t_SHUP ⁽¹⁾
t_REG18 ⁽¹⁾
SHUTDOWN ALERT low time
Initial REG18 output delay
t_WUREG18(1) Wake-up REG18 output delay
Minimum low time of ALERT (input)
in SHUTDOWN before WAKEUP
Time delay from rising edge of
ALERT (input) to nominal REG18
output.
10
13
8
Time delay from rising edge of
t_PUCD
Power-up communication delay⁽²⁾ REGIN to NORMAL mode (includes
250
firmware initialization time).
(1) Specified by design. Not production tested.
(2) t_PUCD indicates when communication can begin. Measurements are not valid for up to 1 second after any reset.
MAX
250
UNIT
ms
μs
ms
ms
ms
6.9 ADC (Temperature and Cell Measurement) 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)
PARAMETER
TEST CONDITIONS
MIN
TYP
V_IN(REGIN) REGIN pin voltage measurement
range
2.45
t_{ADC_CONV} Conversion time
125
Effective resolution
15
MAX
4.5
UNIT
V
ms
bits
6.10 Integrating ADC (Coulomb Counter) Characteristics
T_A = –40°C to 85°C; typical values at T_A = 30°C and V_REGIN = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
V_SRCM
Input voltage range of SRN, SRP
pins
VSS
TYP
MAX
V_REGIN +
100 mV
UNIT
V
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