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參數(shù)資料
| 型號： | MIC2546 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Dual Programmable Current Limit Switch(雙可編程限流電源高邊開關(guān)) |
| 中文描述： | 雙可編程電流限位開關(guān)（雙可編程限流電源高邊開關(guān)） |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 262K |
| 代理商： | MIC2546 |
June 2000
1
MIC2546/2547
MIC2546/2547
Micrel
MIC2546/2547
Dual Programmable Current Limit Switch
Preliminary Information
General Description
The MIC2546 and MIC2547 are integrated high-side dual
power switches optimized for low loss dc power switching and
other power management applications, including Advanced
Configuration and Power Interface (ACPI). The MIC2546/47
is a cost-effective, highly integrated solution that requires few
external components to satisfy USB and ACPI requirements.
Load current management features include a precision resis-
tor-programmable output current-limit and a soft-start circuit
which minimizes inrush current when the switch is enabled.
Thermal shutdown, along with current-limit, protects the
switch and the attached device.
The MIC2546/47’s open-drain flag outputs are used to indi-
cate current-limiting or thermal shutdown to a local controller.
The MIC2547 has an additional internal latch which turns the
output off upon thermal shutdown providing robust fault
control. The enable signal is compatible with both 3V and 5V
logic, and is also used as the thermal shutdown latch reset for
the MIC2547.
The MIC2546 and MIC2547 are available in active-high and
active-low enable versions in 16-pin TSSOP and SOP
packages.
Typical Application
MIC2546-xBM
ENA
FLGA
GNDA
ILIMA
OUTA
INA
OUTA
ENB
FLGB
GNDB
ILIMB
OUTB
INB
OUTB
NC
On/Off
Peripheral
+5V
On/Off
R
FLGA
Peripheral
NC
33
μ
F
0.1
μ
F
R
SETA
R
SETB
R
FLGB
+3.3V
0.1
μ
F
33
μ
F
Typical Advanced Configuration and Power Interface (ACPI) Application
Features
2.7V to 5.5V input
Adjustable current-limit up to 1.5A
Reverse current flow blocking (no
“
body diode
”
)
100
μ
A typical on-state supply current per channel
2
μ
A typical off-state supply current
120m
maximum on-resistance
Open-drain fault flag
Thermal shutdown
Thermal shutdown output latch (MIC2547)
2ms (slow) turn-on and fast turnoff
Available with active-high or active-low enable
Applications
USB power distribution
PCI Bus Power Switching
Notebook PC
ACPI power distribution
PC card hot swap applications
Inrush current-limiting
Ideal for dual supply applications
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 |
|---|---|
| MIC2547 | Dual Programmable Current Limit Switch(雙可編程限流電源高邊開關(guān)) |
| MIC2546-1BM | Dual Programmable Current Limit Switch Preliminary Information |
| MIC2546-1BTS | Replaced by PT6527 : |
| MIC2546-2BM | Dual Programmable Current Limit Switch Preliminary Information |
| MIC2546-2BTS | Replaced by PT6522 : |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2546-1BM | 功能描述:IC SW CURR LIMIT DUAL 16-SOP RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 內(nèi)部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:高端 輸入類型:非反相 輸出數(shù):1 導(dǎo)通狀態(tài)電阻:85 毫歐 電流 - 輸出 / 通道:2A 電流 - 峰值輸出:6A 電源電壓:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:4-UFDFN 裸露焊盤，4-TMLF? 供應(yīng)商設(shè)備封裝:4-TMLF?（1.2x1.6） 包裝:剪切帶 (CT) 其它名稱:576-1574-1 |
| MIC2546-1BM TR | 功能描述:IC SW CURR LIMIT DUAL 16-SOP RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 內(nèi)部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:高端 輸入類型:非反相 輸出數(shù):1 導(dǎo)通狀態(tài)電阻:85 毫歐 電流 - 輸出 / 通道:2A 電流 - 峰值輸出:6A 電源電壓:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:4-UFDFN 裸露焊盤，4-TMLF? 供應(yīng)商設(shè)備封裝:4-TMLF?（1.2x1.6） 包裝:剪切帶 (CT) 其它名稱:576-1574-1 |
| MIC2546-1BTS | 功能描述:IC SW CURR LIMIT DUAL 16-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 內(nèi)部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:高端 輸入類型:非反相 輸出數(shù):1 導(dǎo)通狀態(tài)電阻:85 毫歐 電流 - 輸出 / 通道:2A 電流 - 峰值輸出:6A 電源電壓:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:4-UFDFN 裸露焊盤，4-TMLF? 供應(yīng)商設(shè)備封裝:4-TMLF?（1.2x1.6） 包裝:剪切帶 (CT) 其它名稱:576-1574-1 |
| MIC2546-1BTS TR | 功能描述:IC SW CURR LIMIT DUAL 16-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 內(nèi)部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:高端 輸入類型:非反相 輸出數(shù):1 導(dǎo)通狀態(tài)電阻:85 毫歐 電流 - 輸出 / 通道:2A 電流 - 峰值輸出:6A 電源電壓:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:4-UFDFN 裸露焊盤，4-TMLF? 供應(yīng)商設(shè)備封裝:4-TMLF?（1.2x1.6） 包裝:剪切帶 (CT) 其它名稱:576-1574-1 |
| MIC2546-1YM | 功能描述:電源開關(guān) IC - USB Dual Programmable Current Limit Single High-Side Switch - Lead Free RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
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