2-6 Revision 16 Thermal Characteristics Introduction The temperature variable in the Microsemi " />
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  • 參數(shù)資料
    型號: AGLP125V5-CS289I
    廠商: Microsemi SoC
    文件頁數(shù): 48/134頁
    文件大小: 0K
    描述: IC FPGA IGLOO PLUS 125K 289-CSP
    標(biāo)準(zhǔn)包裝: 152
    系列: IGLOO PLUS
    邏輯元件/單元數(shù): 3120
    RAM 位總計: 36864
    輸入/輸出數(shù): 212
    門數(shù): 125000
    電源電壓: 1.425 V ~ 1.575 V
    安裝類型: 表面貼裝
    工作溫度: -40°C ~ 85°C
    封裝/外殼: 289-TFBGA,CSBGA
    供應(yīng)商設(shè)備封裝: 289-CSP(14x14)
    IGLOO PLUS DC and Switching Characteristics
    2-6
    Revision 16
    Thermal Characteristics
    Introduction
    The temperature variable in the Microsemi Designer software refers to the junction temperature, not the
    ambient temperature. This is an important distinction because dynamic and static power consumption
    cause the chip junction temperature to be higher than the ambient temperature.
    EQ 1 can be used to calculate junction temperature.
    TJ = Junction Temperature = T + TA
    EQ 1
    where:
    TA = Ambient temperature
    T = Temperature gradient between junction (silicon) and ambient T = ja * P
    ja = Junction-to-ambient of the package. ja numbers are located in Figure 2-5.
    P = Power dissipation
    Package Thermal Characteristics
    The device junction-to-case thermal resistivity is
    jc and the junction-to-ambient air thermal resistivity is
    ja. The thermal characteristics for ja are shown for two air flow rates. The maximum operating junction
    temperature is 100°C. EQ 2 shows a sample calculation of the maximum operating power dissipation
    allowed for a 484-pin FBGA package at commercial temperature and in still air.
    EQ 2
    Temperature and Voltage Derating Factors
    Maximum Power Allowed
    Max. junction temp. (
    C) Max. ambient temp. (C)
    ja(C/W)
    ------------------------------------------------------------------------------------------------------------------------------------------
    100
    C70C
    20.5°C/W
    -------------------------------------
    1.46 W
    =
    Table 2-5 Package Thermal Resistivities
    Package Type
    Pin
    Count
    jc
    ja
    Units
    Still Air
    200 ft./
    min.
    500 ft./
    min.
    Chip Scale Package (CSP)
    CS201
    TBD
    C/W
    CS281
    TBD
    C/W
    CS289
    TBD
    C/W
    Very Thin Quad Flat Package (VQFP)
    VQ128
    TBD
    C/W
    VQ176
    TBD
    C/W
    Table 2-6 Temperature and Voltage Derating Factors for Timing Delays (normalized to TJ = 70°C,
    VCC = 1.425 V)
    For IGLOO PLUS V2 or V5 devices, 1.5 V DC Core Supply Voltage
    Array Voltage
    VCC (V)
    Junction Temperature (°C)
    –40°C
    0°C
    25°C
    70°C
    85°C
    100°C
    1.425
    0.934
    0.953
    0.971
    1.000
    1.007
    1.013
    1.5
    0.855
    0.874
    0.891
    0.917
    0.924
    0.929
    1.575
    0.799
    0.816
    0.832
    0.857
    0.864
    0.868
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