PIC16F1946 Datasheet, PDF (396/440 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC16F/LF1946/47
29.6 Thermal Considerations
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  TA  +125°C
Param
No.
Sym.
Characteristic
Typ.
Units
Conditions
TH01
JA Thermal Resistance Junction to Ambient ^48.3
28
C/W 64-pin TQFP package
C/W 64-pin QFN package
TH02
JC Thermal Resistance Junction to Case
26.1
C/W 64-pin TQFP package
0.24
C/W 64-pin QFN package
TH03
TJMAX Maximum Junction Temperature
150
C
TH04
TH05
PD Power Dissipation
PINTERNAL Internal Power Dissipation
—
W
PD = PINTERNAL + PI/O
—
W
PINTERNAL = IDD x VDD⁽¹⁾
TH06
TH07
PI/O
PDER
I/O Power Dissipation
Derated Power
—
W
PI/O =  (IOL * VOL) +  (IOH * (VDD - VOH))
—
W
PDER = PDMAX (TJ - TA)/JA⁽²⁾
Note 1: IDD is current to run the chip alone without driving any load on the output pins.
2: TA = Ambient Temperature
3: TJ = Junction Temperature
DS41414A-page 394
Preliminary
 2010 Microchip Technology Inc.