Datasheet
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
PROG
PROG pin voltage
Current mode
R
PROG
= 10 kΩ
0.93 1.0 1.07 V
V
CHRG
CHRG pinpull-
down voltage
I
CHRG
= 5 mA
0.35 0.6 V
I
POWER_ON
POWER ON pin
leakage current
Pull-up 1 µA
POWER ON pin
pull-down voltage
I
POWER_ON
= 5 mA
0.35 0.6 V
∆V
RECHRG
Recharge battery
threshold voltage
Battery voltage T
J
= 25 °C
R
PROG
= 10 kΩ
200 mV
T
LIM
Junction
temperature in
constant
temperature mode
120 °C
R
ON
PowerFET on-
resistance
(between V
CC
and
BAT)
600 mΩ
t
SS
Soft-start time
I
BAT
= 0 to I
BAT
= 1000 V /
R
PROG
100 µs
T
RECHARGE
Recharge
comparator filter
time
(3)
V
BAT
highto low
0.75 2 4.5 ms
t
TERM
Termination
comparatorfilter
time
(3)
I
BAT
fallingbelow I
CHG
/10
400 1000 2500 µs
I
PROG
PROG pin pull-up
current
1 µA
1. Supply current includes PROG pin current but it doesn’t include any current delivered to the battery through V
BAT
pin
2. I
TERM
is indicated as a fraction of measured full charge current with indicated PROG resistor.
3. Guaranteed by design.
Note: The STBC08 has been tested using a battery simulator and an output capacitor value of 4.7 µF.
STBC08
Electrical characteristics
DS4901 - Rev 4
page 6/20