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參數(shù)資料
| 型號： | MIC2594 |
| 廠商： | Micrel Semiconductor,Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Single-Channel, Negative High-Voltage Hot Swap Power Controllers |
| 中文描述： | 單通道，負高壓熱插拔電源控制器 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 83K |
| 代理商： | MIC2594 |
December 2003
1
M9999-122303
MIC2588/MIC2594
Micrel
MIC2588/MIC2594
Single-Channel, Negative High-Voltage Hot
Swap Power Controllers
General Description
The MIC2588 and the MIC2594 are single-channel, nega-
tive-voltage hot swap controllers designed to address the
need for safe insertion and removal of circuit boards into “l(fā)ive”
high-voltage system backplanes, while using very few exter-
nal components. The MIC2588 and the MIC2594 are each
available in an 8-pin SOIC package and work in conjunction
with an external N-Channel MOSFET for which the gate drive
is controlled to provide inrush current limiting and output
voltage slew-rate control. Overcurrent fault protection is also
provided for which the overcurrent threshold is program-
mable. During an output overload condition, a constant-
current regulation loop is engaged to ensure that the system
power supply maintains regulation. If a fault condition ex-
ceeds a built-in 400
μ
s nuisance-trip delay, the MIC2588 and
the MIC2594 will latch the circuit breaker’s output off and will
remain in the off state until reset by cycling either the UV/OFF
pin or the power to the IC. A master Power-Good signal is
provided to indicate that the output voltage of the soft-start
circuit is within its valid output range. This signal can be used
to enable one or more DC-DC converter modules.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
Typical Application
VDD
VEE
SENSE
GATE
DRAIN
/PWRGD
UV
OV
6
5
4
2
3
7
1
MIC2588-2BM
C
FDBK
C
GATE
R
FDBK
R3
12.4k
1%
Input Overvoltage = 71.2V
Input Undervoltage = 36.5V
(See "Functional Description" for more detail)
R2
11.8k
1%
R1
698k
1%
M1
R4
0.1
μ
F
DC-DC Converter
IN+
100
μ
F
/ON/OFF
+5V
OUT
5V
RETURN
–
48V
INPUT
(Long Pin)
–
48V
RETURN
(Short Pin)
–
48V
RETURN
(Long Pin)
IN
–
OUT+
OUT
–
R
SENSE
8
Features
MIC2588:
Pin-for-pin functional equivalent to the
LT1640/LT1640A/LT4250
Provides safe insertion and removal from live
–
48V
(nominal) backplanes
Operates from
–
19V to
–
80V
Electronic circuit breaker function
Built-in 400
μ
s
“
nuisance-trip
”
delay (t
FLT
)
Regulated maximum output current into faults
Programmable inrush current limiting
Fast response to short circuit conditions (< 1
μ
s)
Programmable undervoltage and overvoltage lockouts
(MIC2588-xBM)
Programmable UVLO hysteresis (MIC2594-xBM)
Fault reporting:
Active-HIGH (-1BM) and Active-LOW
(-2BM) Power-Good signal output
Applications
Central office switching
–
48V power distribution
Distributed power systems
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC2594-1BM | Single-Channel, Negative High-Voltage Hot Swap Power Controllers |
| MIC2594-2BM | Replaced by PTH05060W : |
| MIC2595R-2BM | SINGLE-CHANNEL NEGATIVE HIGH VOLTAGE HOT SWAP POWER CONTROLLERS/SEQUENCERS |
| MIC2595R-1BM | SINGLE-CHANNEL NEGATIVE HIGH VOLTAGE HOT SWAP POWER CONTROLLERS/SEQUENCERS |
| MIC2589 | Replaced by PTH05060W : |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2594-1BM | 功能描述:IC CTRLR HOT SWAP NEG HV 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| MIC2594-1BM TR | 功能描述:IC CTRLR HOT SWAP NEG HV 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| MIC2594-1YM | 功能描述:熱插拔功率分布 Negative Voltage Hot-Swap Controller - Lead Free RoHS:否 制造商:Texas Instruments 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MIC2594-1YM TR | 功能描述:熱插拔功率分布 Negative Voltage Hot-Swap Controller - Lead Free RoHS:否 制造商:Texas Instruments 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MIC2594-1YM-TR | 功能描述:Hot Swap Controller 1 Channel -48V 8-SOIC 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):停產(chǎn) 類型:熱交換控制器 通道數(shù):1 內(nèi)部開關(guān):無 應(yīng)用:-48V 特性:故障超時，閉鎖故障 可編程特性:限流，壓擺率，UVLO 電壓 - 電源:-80 V ~ -19 V 電流 - 輸出（最大值）:- 工作溫度:-40°C ~ 85°C 電流 - 電源:3mA 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商器件封裝:8-SOIC 功能引腳:DRAIN，OFF，ON，PWRGD 標準包裝:1 |
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