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PIC16F946-E/MLQTP Datasheet(PDF) 265 Page - Microchip Technology

Part # PIC16F946-E/MLQTP
Description  28/40/44/64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology
PDF  330 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F946-E/MLQTP Datasheet(HTML) 265 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS41250F-page 263
PIC16F913/914/916/917/946
19.6
Thermal Considerations
Standard Operating Conditions (unless otherwise stated)
Operating temperature
-40°C
≤ TA ≤ +125°C
Param
No.
Symbol
Characteristic
Typ.
Units
Conditions
TH01
θJA
Thermal Resistance
Junction to Ambient
60.0
°C/W
28-pin PDIP package
80.0
°C/W
28-pin SOIC package
90.0
°C/W
28-pin SSOP package
27.5
°C/W
28-pin QFN 6x6 mm package
47.2
°C/W
40-pin PDIP package
46.0
°C/W
44-pin TQFP package
24.4
°C/W
44-pin QFN 8x8 mm package
77.0
°C/W
64-pin TQFP package
TH02
θJC
Thermal Resistance
Junction to Case
31.4
°C/W
28-pin PDIP package
24.0
°C/W
28-pin SOIC package
24.0
°C/W
28-pin SSOP package
20.0
°C/W
28-pin QFN 6x6 mm package
24.7
°C/W
40-pin PDIP package
14.5
°C/W
44-pin TQFP package
20.0
°C/W
44-pin QFN 8x8 mm package
24.4
°C/W
64-pin TQFP package
TH03
TJ
Junction Temperature
150
°C
For derated power calculations
TH04
PD
Power Dissipation
—
W
PD = PINTERNAL + PI/O
TH05
PINTERNAL Internal Power Dissipation
—
W
PINTERNAL = IDD x VDD
(NOTE 1)
TH06
PI/O
I/O Power Dissipation
—
W
PI/O =
Σ (IOL * VOL) + Σ (IOH * (VDD - VOH))
TH07
PDER
Derated Power
—
W
PDER = (TJ - TA)/
θJA
(NOTE 2, 3)
Note 1: IDD is current to run the chip alone without driving any load on the output pins.
2: TA = Ambient Temperature.
3: Maximum allowable power dissipation is the lower value of either the absolute maximum total power
dissipation or derated power (PDER).



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