bq2031
Impedance
Symbol
Parameter
Minimum
Typical Maximum
Unit
Notes
RBATZ
RSNSZ
RTSZ
BAT pin input impedance
SNS pin input impedance
TS pin input impedance
50
50
50
-
-
-
-
-
-
MΩ
MΩ
MΩ
Soft-programmed pull-up or pull-down
resistor value (for programming)
DSEL, TSEL, and
QSEL
RPROG1
-
-
10
kΩ
RPROG2
RMTO
Pull-up or pull-down resistor value
Charge timer resistor
-
-
-
3
kΩ
kΩ
IGSEL
20
480
Timing (T = T
; V = 5V 10%)
OPR CC
A
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Notes
tMTO
tQT1
tQT2
tDV
Charge time-out range
1
-
-
-
-
-
-
-
24
-
hours See Figure 9
Pre-charge qual test 1 time-out period
Pre-charge qual test 2 time-out period
∆2V termination sample frequency
Pre-charge qual test 2 hold-off period
Bulk charge hold-off period
0.02tMTO
0.16tMTO
0.008tMTO
0.002tMTO
0.015tMTO
100
-
-
-
-
-
-
-
tH01
tH02
FPWM
-
-
PWM regulator frequency range
kHz
See Equation 9
Capacitance
Symbol
Parameter
Minimum
Typical
Maximum
Unit
CMTO
CPWM
Charge timer capacitor
PWM R-C capacitance
-
-
0.1
0.1
-
µF
µF
0.001
13
TI [ TEXAS INSTRUMENTS ]
