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MCP73853/55
AC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all limits apply for V DD = [V REG (Typ) + 0.3V] to 5.5V,
T A = -40°C to 85°C. Typical values are at +25°C, V DD = [V REG (Typ) + 1.0V]
Parameters
UVLO Start Delay
Sym
t START
Min
—
Typ
—
Max
5
Units
ms
Conditions
V DD Low-to-High
Current Regulation
Transition Time Out of
t DELAY
—
—
1
ms
V BAT < V PTH to V BAT > V PTH
Preconditioning
Current Rise Time Out of
t RISE
—
—
1
ms
I OUT Rising to 90% of I REG
Preconditioning
Fast Charge Safety Timer
t FAST
1.1
1.5
1.9
Hours
C TIMER = 0.1 μF
Period
Preconditioning Current Regulation
Preconditioning Charge
t PRECON
45
60
75
Minutes C TIMER = 0.1 μF
Safety Timer Period
Charge Termination
Elapsed Time Termination
t TERM
2.2
3
3.8
Hours
C TIMER = 0.1 μF
Period
Status Indicators
Status Output Turn-off
Status Output Turn-on
t OFF
t ON
—
—
—
—
200
200
μs
μs
I SINK = 1 mA to 0 mA
I SINK = 0 mA to 1 mA
TEMPERATURE SPECIFICATIONS
Electrical Specifications: Unless otherwise indicated, all limits apply for V DD = [V REG (Typ) + 0.3V] to 5.5.
Typical values are at +25°C, V DD = [V REG (Typ) + 1.0V]
Parameters
Sym
Min
Typ
Max
Units
Conditions
Temperature Ranges
Specified Temperature Range
Operating Temperature Range
Storage Temperature Range
T A
T J
T A
-40
-40
-65
—
—
—
+85
+125
+150
°C
°C
°C
Thermal Package Resistances
4-Layer JC51-7
Thermal Resistance, 16-L, 4mm x 4mm QFN
θ JA
—
37
—
°C/W
Standard Board,
Natural Convection
4-Layer JC51-7
Thermal Resistance, 10-L, 3mm x 3mm DFN
θ JA
—
51
—
°C/W
Standard Board,
Natural Convection
? 2004-2012 Microchip Technology Inc.
DS21915B-page 5
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