参数资料
型号: USB2513-AEZG
厂商: STANDARD MICROSYSTEMS CORP
元件分类: 总线控制器
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, QCC36
封装: 6 X 6 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-36
文件页数: 65/76页
文件大小: 1924K
代理商: USB2513-AEZG
USB 2.0 Hi-Speed Hub Controller
Datasheet
Revision 1.1 (04-26-10)
68
SMSC USB251x
DATASHEET
9.2.1
Package Thermal Specifications
Thermal parameters are measured or estimated for devices with the exposed pad soldered to thermal
vias in a multilayer 2S2P PCB per JESD51. Thermal resistance is measured from the die to the
ambient air. The values provided are based on the package body, die size, maximum power
consumption, 85°C ambient temperature, and 125°C junction temperature of the die.
Table 9.12 Package Thermal Resistance Parameters
Use the following formulas to calculate the junction temperature:
TJ = P x ΘJA + TA
TJ = P x ΨJT + TT
TJ = P x ΘJC + TC
Table 9.13 Legend
SYMBOL
USB2512/12i
USB2513/13i
USB2514/14i
(°C/W)
USB2512A/12Ai
(°C/W)
USB2512B/12Bi
USB2513B/13Bi
USB2514B/14Bi
(°C/W)
USB2513/13i
USB2514/14i
(°C/W)
VELOCITY
(meters/sec)
PACKAGE
36-PIN QFN
48-PIN QFN
-
ΘJA
34.2
36.2
40.1
31.6
0
29.9
33.4
35.0
27.6
1
ΨJT
0.3
0.4
0.5
0.3
0
0.5
0.7
0.4
1
ΘJC
3.0
5.1
6.3
3.0
0
3.0
5.1
6.3
3.0
1
SYMBOL
DESCRIPTION
TJ
Junction temperature
P
Power dissipated
ΘJA
Junction-to-ambient-temperature
ΘJC
Junction-to-top-of-package
ΨJT
Junction-to-bottom-of-case
TA
Ambient temperature
TC
Temperature of the bottom of the case
TT
Temperature of the top of the case
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