MCP73831T Datasheet

© 2008 Microchip Technology Inc. DS21984E-page 5
MCP73831/2
TEMPERATURE SPECIFICATIONS
AC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all limits apply for V
DD
= [V
REG
(typical) + 0.3V] to 12V,
T
A
= -40°C to +85°C. Typical values are at +25°C, V
DD
= [V
REG
(typical) + 1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions
UVLO Start Delay t
START
—— 5 msV
DD
Low-to-High
Constant-Current Regulation
Transition Time Out of
Preconditioning
t
DELAY
—— 1 msV
BAT
< V
PTH
to V
BAT
> V
PTH
Current Rise Time Out of
Preconditioning
t
RISE
—— 1 msI
OUT
Rising to 90% of I
REG
Termination Comparator
Filter
t
TERM
0.4 1.3 3.2 ms Average I
OUT
Falling
Charge Comparator Filter t
CHARGE
0.4 1.3 3.2 ms Average V
BAT
Status Indicator
Status Output turn-off t
OFF
——200µsI
SINK
= 1 mA to 0 mA
Status Output turn-on t
ON
——200µsI
SINK
= 0 mA to 1 mA
Electrical Specifications: Unless otherwise indicated, all limits apply for V
DD
= [V
REG
(typical) + 0.3V] to 12V.
Typical values are at +25°C, V
DD
= [V
REG
(typical) + 1.0V]
Parameters Sym. Min. Typ. Max. Units Conditions
Temperature Ranges
Specified Temperature Range T
A
-40 — +85 °C
Operating Temperature Range T
J
-40 — +125 °C
Storage Temperature Range T
A
-65 — +150 °C
Thermal Package Resistances
5-Lead, SOT-23 θ
JA
— 230 — °C/W 4-Layer JC51-7 Standard
Board, Natural Convection
(Note 2)
8-Lead, 2 mm x 3 mm, DFN θ
JA
— 76 — °C/W 4-Layer JC51-7 Standard
Board, Natural Convection
(Note 1)
Note 1: This represents the minimum copper condition on the PCB (Printed Circuit Board).
2: With large copper area on the PCB, the SOT-23-5 thermal resistance ( θ
JA
) can reach a typical value of
130°C/W or better.