Datasheet

13
Impedance
Symbol Parameter Minimum Typical Maximum Unit Notes
R
BATZ
BAT pin input impedance 50 - - M
Ω
R
SNSZ
SNS pin input impedance 50 - - M
Ω
R
TSZ
TS pin input impedance 50 - - M
Ω
R
PROG1
Soft-programmed pull-up or pull-down
resistor value (for programming)
--10
k
Ω
DSEL
R
PROG2
Pull-up or pull-down resistor value - - 3 k
Ω
I
TERM
R
MTO
Charge timer resistor 20 - 480 k
Ω
Timing (T
A
= T
OPR
;V
CC
= 5V
±
10%)
Symbol Parameter Minimum Typical Maximum Unit Notes
t
MTO
Charge time-out range 1 - 24 hours See Figure 7
t
QT
Pre-charge qual test time-out period - t
MTO
--
t
HO
Termination hold-off period 1.14 - 1.52 sec.
t
IMIN
Min. current detect filter period 80 160 msec.
F
PWM
PWM regulator frequency range - 100 kHz
C
PWM
= 0.001
µ
F
(equation 7)
Capacitance
Symbol Parameter Minimum Typical Maximum Unit
C
MTO
Charge timer capacitor - - 0.1
µ
F
C
PWM
PWM R-C capacitance - 0.001 -
µ
F
bq2054