BQ2003 Datasheet, PDF (11/15 Pages) Texas Instruments – Fast-Charge IC

bq2003
Impedance
Symbol
RBAT
RMCV
RTCO
RSNS
RTS
Parameter
Battery input impedance
MCV input impedance
TCO input impedance
SNS input impedance
TS input impedance
Minimum
50
50
50
50
50
Typical
-
-
-
-
-
Maximum
-
-
-
-
-
Unit
MΩ
MΩ
MΩ
MΩ
MΩ
Timing (TA = 0 to +70°C; VCC ±10%)
Symbol
Parameter
Minimum Typical Maximum
tPW
Pulse width for CCMD,
DCMD pulse commands
1
-
-
dFCV
Time base variation
-16
-
16
fREG
MOD output regulation
frequency
-
-
300
tMCV
Maximum voltage
termination time limit
200
250
300
Unit
Notes
µs
Pulse start for charge or discharge-
before-charge
% VCC = 4.5V to 5.5V
kHz
ms
Time limit to distinguish battery re-
moved from charge complete
Note:
Typical is at TA = 25°C, VCC = 5.0V.
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