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參數資料
| 型號： | MAX5948BESA+T |
| 廠商： | Maxim Integrated |
| 文件頁數： | 17/18頁 |
| 文件大小： | 182K |
| 描述： | IC CNTRLR HOT SWAP 8-SOIC |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 類型： | 熱交換控制器 |
| 應用： | 通用 |
| 內部開關： | 無 |
| 電源電壓： | -20 V ~ -80 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
Using the IRL520NS, V
DS
d 0.625V even at +80癈 so
efficiency e 98.6% at 80癈. P
D
d 1.56W and junction
temperature rise above case temperature would be 5癈
due to the package ?/DIV>
JC
= 3.1癈/W thermal resistance.
Of course, using the SUD40N10-25 would yield an effi-
ciency greater than 99.8% to compensate for the
increased cost.
If I
CB
is set to twice I
LOAD
, or 5A, V
DS
momentarily dou-
bles to d 1.25V. If C
OUT
= 4000礔, transient-line input
voltage is 36V, the 5A charging-current pulse is:
Entering the data sheet transient-thermal-resistance
curves at 1ms provides a 窲C = 0.9癈/W. P
D
= 6.25W,
so t
JC
= 5.6癈. Clearly, this is not a problem.
Example 2:
I
LOAD
= 10A, efficiency = 98%, allowing V
DS
= 0.96V
but R
DS(ON)
d 96m&. An IRF530 in a D
2
PAK exhibits
R
DS(ON)
d 90m& at +25癈 and d 135m& at +80癈.
Power dissipation is 9.6W at +25癈 or 14.4W at +80癈.
Junction-to-case thermal resistance is 1.9W/癈, so the
junction temperature rise would be approximately 5癈
above the +25癈 case temperature. For higher efficien-
cy, consider IRL540NS with R
DS(ON)
d 44m&. This
allows ?= 99%, P
D
d 4.4W, and T
JC
= +4癈 (?/DIV>
JC
=
1.1癈/W) at +25癈.
Thermal calculations for the transient condition yield
I
CB
= 20A, V
DS
= 1.8V, t = 0.5ms, transient ?/DIV>
JC
=
0.12癈/W, P
D
= 36W and t
JC
= 4.3癈.
t
F x
V
A
ms
=
=
4000
1 25
5
1
?/DIV>
.
-48V Hot-Swap Controllers
with External R
SENSE
______________________________________________________________________________________ 17
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maxim-ic.com/packages
. Note that a
+ , # , or - in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE NO.
LAND
PATTERN NO.
8 SO
S8+5
21-0041
90-0096
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5949AESA | 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 |
| MAX5949AESA+ | 功能描述:熱插拔功率分布 48V- 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 |
| MAX5949AESA+T | 功能描述:熱插拔功率分布 48V- 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 |
| MAX5949AESA+TG126 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX5949AESA-T | 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 |
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