參數(shù)資料
型號: LPC12D27FBD100
廠商: NXP Semiconductors N.V.
元件分類: 數(shù)學(xué)處理器
英文描述: 32-bit ARM Cortex-M0 microcontroller; 128 kB flash and 8 kB SRAM; 4 x 40 segment LCD driver
中文描述: 32位ARM Cortex-M0的微控制器,128KB閃存和8 KB靜態(tài)隨機存儲器;4×40段LCD驅(qū)動器
封裝: LPC12D27FBD100/301<SOT407-1 (LQFP100)|<<http://www.nxp.com/packages/SOT407-1.html<1<Always Pb-free,;
文件頁數(shù): 18/46頁
文件大?。?/td> 371K
代理商: LPC12D27FBD100
LPC12D27
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 1 — 20 September 2011
18 of 46
NXP Semiconductors
LPC12D27
32-bit ARM Cortex-M0 microcontroller
9. Thermal characteristics
9.1 Thermal characteristics
The average chip junction temperature, T
j
(
C), can be calculated using the following
equation:
(1)
T
amb
= ambient temperature (
C),
R
th(j-a)
= the package junction-to-ambient thermal resistance (
C/W)
P
D
= sum of internal and I/O power dissipation
The internal power dissipation is the product of I
DD
and V
DD
. The I/O power dissipation of
the I/O pins is often small and many times can be negligible. However it can be significant
in some applications.
T
j
T
amb
P
D
R
th j
a
+
=
Table 6.
V
DD
= 3.0 V to 3.6 V; T
amb
=
40
C to +85
C unless otherwise specified.
Symbol
Parameter
R
th(j-a)
thermal resistance from
junction to ambient
Thermal characteristics
Conditions
JEDEC test board; no
air flow
LQFP64 package
LQFP48 package
JEDEC test board
LQFP64 package
LQFP48 package
Min
-
Typ
61
Max
-
Unit
C/W
86
19
-
-
C/W
C/W
R
th(j-c)
thermal resistance from
junction to case
-
36
-
-
150
C/W
C
T
j(max)
maximum junction
temperature
-
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