- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358227 > MSK5822-5KRHU (MS KENNEDY CORP) 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, CSFM5 PDF資料下載
參數(shù)資料
| 型號(hào)： | MSK5822-5KRHU |
| 廠商： | MS KENNEDY CORP |
| 元件分類： | 固定正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器 |
| 英文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, CSFM5 |
| 封裝： | HERMETIC SEALED, SIP-5 |
| 文件頁(yè)數(shù)： | 4/7頁(yè) |
| 文件大小： | 504K |
| 代理商： | MSK5822-5KRHU |
APPLICATION NOTES CONT.
4
To select a heat sink for the MSK 5822RH, the following
formula for convective heat flow may be used.
Governing Equation:
T
J
=
P
D
X (R
θ
JC
+ R
θ
CS
+ R
θ
SA
) + T
A
Where
T
J
P
D
R
θ
JC
R
θ
CS
R
θ
SA
T
A
= Junction Temperature
= Total Power Dissipation
= Junction to Case Thermal Resistance
= Case to Heat Sink Thermal Resistance
= Heat Sink to Ambient Thermal Resistance
= Ambient Temperature
Power Dissipation=(VIN-VOUT) x I
OUT
Next, the user must select a maximum junction tem-
perature. The absolute maximum allowable junction tem-
perature is 150°C. The equation may now be rearranged
to solve for the required heat sink to ambient thermal
resistance (R
θ
SA
).
Example:
An MSK 5822-2.5RH is connected for VIN=+3.3V and
VOUT=+2.5V. I
OUT
is a continuous 3A DC level. The ambi-
ent temperature is +25°C. The maximum desired junction
temperature is +125°C.
R
θ
JC
=3.0°C/W and R
θ
CS
=0.15°C/W for most thermal
greases
Power Dissipation=(3.3V-2.5V) x (3A)
=2.4 Watts
Solve for R
θ
SA:
125°C - 25°C
= 38.5°C/W
In this example, a heat sink with a thermal resistance
of no more than 38°C/W must be used to maintain a
junction temperature of no more than 125°C.
The MSK 5822RH control circuitry has a thermal shut-
down temperature of approximately 150°C. This ther-
mal shutdown can be used as a protection feature, but
for continuous operation, the junction temperature of the
pass transistor must be maintained below 150°C. Proper
heat sink selection is essential to maintain these condi-
tions. Exceeding the thermal limit activates the latch fea-
ture of the MSK 5822RH. Momentarily pull the latch pin
low or cycle the power to reset the latch.
TYPICAL APPLICATIONS CIRCUIT
R
θ
SA
2.4W
FIGURE 2
THERMAL LIMITING
HEAT SINK SELECTION
Radiation performance curves for TID testing have been
generated for all radiation testing performed by MS Kennedy.
These curves show performance trends throughout the TID
test process and are located in the MSK 5822RH radiation
test report. The complete radiation test report will be avail-
able in the RAD HARD PRODUCTS section on the MSK
website.
TOTAL DOSE RADIATION TEST
PERFORMANCE
http://www.mskennedy.com/store.asppid=9951&catid=19680
Reference the MSK 5826RH RAD REPORT for ELDRS and
Neutron results.
Rev. G 9/10
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSK5827HRHUA | ADJUSTABLE POSITIVE LDO REGULATOR, CSFM5 |
| MSM-2170-FX-BMA-02 | 0 MHz - 18000 MHz 50 ohm RF/MICROWAVE TERMINATION |
| MSM-2170-FX-NNN-02 | 0 MHz - 18000 MHz 50 ohm RF/MICROWAVE TERMINATION |
| MSM-2170-FX-SMA-02 | 0 MHz - 18000 MHz 50 ohm RF/MICROWAVE TERMINATION |
| MSM-2170-0X-7MM-02 | 0 MHz - 18000 MHz 50 ohm RF/MICROWAVE TERMINATION |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSK600 | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER |
| MSK601 | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER |
| MSK601B | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER |
| MSK604 | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:NEGATIVE OUTPUT WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER |
| MSK604B | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:NEGATIVE OUTPUT WIDE BANDWIDTH HIGH VOLTAGE AMPLIFIER |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。