bq3285
DC Electrical Characteristics (TA = TOPR, VCC = 5V ± 10%)
Symbol
Parameter
Minimum Typical Maximum
Unit
Conditions/Notes
VIN = VSS to VCC
ILI
Input leakage current
-
-
± 1
µA
AD0–AD7, INT, and SQW
in high impedance,
VOUT = VSS to VCC
µA
ILO
Output leakage current
-
-
± 1
VOH
VOL
Output high voltage
Output low voltage
2.4
-
-
-
-
V
V
IOH = -2.0 mA
0.4
IOL = 4.0 mA
Min. cycle, duty = 100%,
ICC
Operating supply current
-
7
15
mA
I
OH = 0mA, IOL = 0mA
VSO
Supply switch-over voltage
Battery operation current
Power-fail-detect voltage
Input current when RCL = VSS
-
VBC
0.3
4.17
-
-
V
µA
V
ICCB
VPFD
IRCL
IMOTH
-
4.0
-
0.5
VBC = 3V, TA = 25°C
4.35
185
-185
.
µA
µA
Internal 30K pull-up
Input current when MOT = VCC
-
-
Internal 30K pull-down
Notes:
Typical values indicate operation at TA = 25°C, VCC = 5V or VBC = 3V.
Crystal Specifications (DT-26 or Equivalent)
Symbol
Parameter
Oscillation frequency
Minimum
Typical
Maximum
Unit
fO
-
32.768
-
kHz
pF
CL
TP
Load capacitance
-
6
-
30
-0.042
-
Temperature turnover point
Parabolic curvature constant
Quality factor
20
25
°C
k
-
-
ppm/°C
Q
40,000
70,000
R1
Series resistance
-
-
-
-
-
-
1.1
430
-
45
1.8
600
1
KΩ
C0
Shunt capacitance
Capacitance ratio
pF
C0/C1
DL
∆f/fO
Drive level
µW
Aging (first year at 25°C)
1
-
ppm
Jan. 1999 E
12
TI [ TEXAS INSTRUMENTS ]
