Microchip Technology MCP1630DM-DDBS1 Scheda Tecnica

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©
 2007 Microchip Technology Inc.
DS41211D-page 123
PIC12F683
15.6
Thermal Considerations
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C 
 T
A
 
 +125°C
Param
No.
Sym
Characteristic
Typ
Units
Conditions
TH01
θ
JA
Thermal Resistance 
Junction to Ambient
84.6
°C/W
8-pin PDIP package
163.0
°C/W
8-pin SOIC package
52.4
°C/W
8-pin DFN-S 4x4x0.9 mm package
46.3
°C/W
8-pin DFN-S 6x5 mm package
TH02
θ
JC
Thermal Resistance 
Junction to Case
41.2
°C/W
8-pin PDIP package
38.8
°C/W
8-pin SOIC package
3.0
°C/W
8-pin DFN-S 4x4x0.9 mm package
2.6
°C/W
8-pin DFN-S 6x5 mm package
TH03
T
J
Junction Temperature
150
°C
For derated power calculations
TH04
PD
Power Dissipation
W
PD = P
INTERNAL
 + P
I
/
O
TH05
P
INTERNAL
Internal Power Dissipation
W
P
INTERNAL
 = I
DD
 x V
DD
(NOTE 1)
TH06
P
I
/
O
I/O Power Dissipation
W
P
I
/
O
 = 
Σ
 (I
OL
 * V
OL
) + 
Σ
 (I
OH
 * (V
DD
 - V
OH
))
TH07
P
DER
Derated Power
W
P
DER
 = (T
J
 - T
A
)/
θ
JA
(NOTE 2, 3)
Note 1:
I
DD
 is current to run the chip alone without driving any load on the output pins.
2:
T
A
 = Ambient Temperature.
3:
Maximum allowable power dissipation is the lower value of either the absolute maximum total power 
dissipation or derated power (P
DER
).