THERMAL ADDENDUM (REV 1.0) Figure 21. Therma" />
參數(shù)資料
型號: MM908E626AVDWB
廠商: Freescale Semiconductor
文件頁數(shù): 35/43頁
文件大?。?/td> 0K
描述: IC STEPPER MOTOR DRIVER 54-SOIC
標準包裝: 26
應用: 自動鏡像控制
核心處理器: HC08
程序存儲器類型: 閃存(16 kB)
控制器系列: 908E
RAM 容量: 512 x 8
接口: SCI,SPI
輸入/輸出數(shù): 13
電源電壓: 8 V ~ 18 V
工作溫度: -40°C ~ 115°C
安裝類型: 表面貼裝
封裝/外殼: 54-BSSOP(0.295",7.50mm 寬)裸露焊盤
包裝: 管件
供應商設備封裝: 54-SOICW-EP
Analog Integrated Circuit Device Data
40
Freescale Semiconductor
908E626
ADDITIONAL DOCUMENTATION
THERMAL ADDENDUM (REV 1.0)
Figure 21. Thermal Test Board
Device on Thermal Test Board
RJAis the thermal resistance between die junction and
ambient air.
RJSmn is the thermal resistance between die junction and
the reference location on the board surface near a center
lead of the package.
This device is a dual die package. Index m indicates the
die that is heated. Index n refers to the number of the die
where the junction temperature is sensed.
908E626 Pin Connections
54-Pin SOICW-EP
0.65 mm Pitch
17.9 mm x 7.5 mm Body
PTA0/KBD0
PTA1/KBD1
PTA2/KBD2
PTA3/KBD3
PTA4/KBD4
VREFH
VDDA
EVDD
EVSS
VSSA
VREFL
PTE1/RXD
RXD
VSS
NC
VDD
NC
HVDD
NC
HB4
VSUP3
GND2
HB3
NC
FLSVPP
PTB7/AD7/TBCH1
PTB6/AD6/TBCH0
PTC4/OSC1
PTC3/OSC2
PTC2/MCLK
PTB5/AD5
PTB4/AD4
PTB3/AD3
IRQ
RST
PTB1/AD1
PTD0/TACH0/BEMF
PTD1/TACH1
NC
FGEN
BEMF
RST_A
IRQ_A
SS
LIN
NC
HB1
VSUP1
GND1
HB2
VSUP2
1
11
12
13
14
15
16
17
18
19
20
9
10
21
22
23
24
25
26
27
6
7
8
4
5
2
3
54
44
43
42
41
40
39
38
37
36
35
46
45
34
33
32
31
30
29
28
49
48
47
51
50
53
52
Exposed
Pad
A
10.3 mm x 5.1 mm Exposed Pad
A
Material:
Single layer printed circuit board
FR4, 1.6 mm thickness
Cu traces, 0.07 mm thickness
Outline:
80 mm x 100 mm board area,
including edge connector for thermal
testing
Area A:
Cu heat-spreading areas on board
surface
Ambient Conditions:
Natural convection, still air
Table 13. Thermal Resistance Performance
Thermal
Resistance
Area A
(mm2)
1 = Power Chip, 2 = Logic Chip
(
C/W)
m = 1,
n = 1
m = 1, n = 2
m = 2, n = 1
m = 2,
n = 2
RJAmn
053
48
53
300
39
34
38
600
35
30
34
RJSmn
021
16
20
300
15
11
15
600
14
9.0
13
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