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參數資料
型號: MAX5930AEEG+
廠商: Maxim Integrated
文件頁數: 20/23頁
文件大小: 331K
描述: IC HOT SWAP CTLR PWR SEQ 24QSOP
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 50
類型: 熱交換控制器
應用: 通用
內部開關:
電源電壓: 1 V ~ 15 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-SSOP(0.154",3.90mm 寬)
供應商設備封裝: 24-QSOP
包裝: 管件
MOSFET Thermal Considerations
During normal operation, the external MOSFETs dissi-
pate little power. The MOSFET R
DS(ON)
is low when the
MOSFET is fully enhanced. The power dissipated in nor-
mal operation is P
D
= I
LOAD
2
x R
DS(ON)
. The most
power dissipation occurs during the turn-on and turn-off
transients when the MOSFETs are in their linear regions.
By taking into consideration the worst-case scenario of a
continuous short-circuit fault, consider these two cases:
1) The single turn-on with the device latched after a
fault: MAX5930A/MAX5931A/MAX5931B (LATCH =
high or unconnected).
2) The continuous autoretry after a fault: MAX5930A/
MAX5931A/MAX5931B (LATCH = low).
MOSFET manufacturers typically include the package
thermal resistance from junction to ambient (R
窲A
) and
thermal resistance from junction to case (R
窲C
), which
determine the startup time and the retry duty cycle (d =
t
START
/(t
START
+ t
RETRY
). Calculate the required tran-
sient thermal resistance with the following equation:
where I
START
= V
SU,TH
/R
SENSE
.
Z
T
T
V
I
JA MAX
JMAX
A
IN
START
?nbsp  (
)
   
d

?/DIV>
Low-Voltage, Triple, Hot-Swap Controllers/
Power Sequencers/Voltage Trackers
20   ______________________________________________________________________________________
INY
GATEY
INZ
GATEZ
Q1
R
SENSEY
SENSEY
R
SENSEZ
SENSEZ
Q2
C
BOARDZ
OUTY
C
BOARDY
OUTZ
V
Y
C
1
R
1
V
EN
V
Z
ON
OFF
GND
ON
GND
V
ONY, TH
V
ONZ, TH
t
DELAY
V
EN
t
1
 = -R
1
C
1
 ln(          )
V
EN
 - V
ONY, TH
V
EN
V
ON
V
Y
V
Z
t
0
t
1
t
2
t
2
 = -R
1
C
1
 ln(          )
V
EN
 - V
ONZ, TH
V
EN
t
DELAY
 = -R
1
C
1
 ln(          )
V
EN
 - V
ONY, TH
V
EN
 - V
ONZ, TH
MAX5930A
MAX5931A
MAX5931B
Figure 11. Power Sequencing: Channel Z Turns On t
DELAY
After Channel Y
相關PDF資料
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相關代理商/技術參數
參數描述
MAX5930AEEG+ 功能描述:熱插拔功率分布 Triple Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5930AEEG+T 功能描述:熱插拔功率分布 Triple Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5930EEG 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5930EEG+ 功能描述:熱插拔功率分布 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5930EEG+T 功能描述:熱插拔功率分布 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
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