MCP73831/2
AC CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated, all limits apply for V
DD
= [V
REG
(typ.) + 0.3V] to 12V,
T
A
= -40°C to +85°C. Typical values are at +25°C, V
DD
= [V
REG
(typ.) + 1.0V]
Parameters
UVLO Start Delay
Constant-Current Regulation
Transition Time Out of
Preconditioning
Current Rise Time Out of
Preconditioning
Termination Comparator
Filter
Charge Comparator Filter
Status Indicator
Status Output turn-off
Status Output turn-on
t
OFF
t
ON
—
—
—
—
200
200
μ
s
μ
s
Sym.
t
START
t
DELAY
t
RISE
t
TERM
t
CHARGE
Min.
—
—
—
0.4
0.4
Typ.
—
—
—
1.3
1.3
Max.
5
1
1
3.2
3.2
Units
ms
ms
ms
ms
ms
Conditions
V
DD
Low-to-High
V
BAT
< V
PTH
to V
BAT
> V
PTH
I
OUT
Rising to 90% of I
REG
Average I
OUT
Falling
Average V
BAT
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 12V.
Typical values are at +25°C, V
DD
= [V
REG
(typ.) + 1.0V]
Parameters
Temperature Ranges
Specified Temperature Range
Operating Temperature Range
Storage Temperature Range
Thermal Package Resistances
5-Lead, SOT23
8-Lead, 2 mm x 3 mm, DFN
θ
JA
θ
JA
—
—
230
76
—
—
°C/W
°C/W
4-Layer JC51-7 Standard
Board, Natural Convection
4-Layer JC51-7 Standard
Board, Natural Convection
T
A
T
J
T
A
-40
-40
-65
—
—
—
+85
+125
+150
°C
°C
°C
Sym.
Min.
Typ.
Max.
Units
Conditions
©
2006 Microchip Technology Inc.
DS21984B-page 5
MICROCHIP [ MICROCHIP TECHNOLOGY ]
