General
5.4.1 Thermal operating requirements
Table 11. Thermal operating requirements
Symbol
Description
Min.
Max.
Unit
TJ
Die junction temperature
–40
125
°C
TA
Ambient temperature
–40
105
°C
5.4.2 Thermal attributes
Board type
Symbol
Description
144 LQFP
144
MAPBGA
Unit
Notes
Single-layer
(1s)
RθJA
Thermal
resistance,
junction to
ambient (natural
convection)
45
48
29
38
25
16
°C/W
1
Four-layer
(2s2p)
RθJA
Thermal
resistance,
junction to
ambient (natural
convection)
36
36
30
24
°C/W
°C/W
°C/W
°C/W
1
1
1
2
Single-layer
(1s)
RθJMA
RθJMA
RθJB
Thermal
resistance,
junction to
ambient (200 ft./
min. air speed)
Four-layer
(2s2p)
Thermal
resistance,
junction to
ambient (200 ft./
min. air speed)
—
Thermal
resistance,
junction to
board
—
—
RθJC
Thermal
resistance,
junction to case
9
2
9
2
°C/W
°C/W
3
4
ΨJT
Thermal
characterization
parameter,
junction to
package top
outside center
(natural
convection)
1.
Determined according to JEDEC Standard JESD51-2, Integrated Circuits Thermal Test Method Environmental
Conditions—Natural Convection (Still Air), or EIA/JEDEC Standard JESD51-6, Integrated Circuit Thermal Test Method
Environmental Conditions—Forced Convection (Moving Air).
K60 Sub-Family Data Sheet Data Sheet, Rev. 6, 9/2011.
22
Freescale Semiconductor, Inc.
FREESCALE [ Freescale ]
