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參數(shù)資料
| 型號(hào)： | MIC2537-1BM |
| 廠商： | MICREL INC |
| 元件分類： | 電源管理 |
| 英文描述： | Quad Power Distribution Switch Preliminary Information |
| 中文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | SOP-16 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 88K |
| 代理商： | MIC2537-1BM |
December 1999
1
MIC2537
MIC2537
Micrel
MIC2537
Quad Power Distribution Switch
Preliminary Information
General Description
The MIC2537 is a cost-effective high-side power switch with
four independently controlled channels, optimized for bus-
powered Universal Serial Bus (USB) applications. Few exter-
nal components are necessary to satisfy USB requirements.
The MIC2537 satisfies the following USB requirements: each
switch channel supplies up to 100mA as required by USB
bus-powered downstream devices; fault current is limited to
typically 250mA, well below the UL 25VA safety require-
ments; and a flag output is available to indicate fault condi-
tions to the local USB controller. Soft start eliminates the
momentary voltage drop on the upstream port that may occur
when the switch is enabled in bus-powered applications.
Additional features include thermal shutdown to prevent
catastrophic switch failure from high-current loads and 3.3V
and 5V logic compatible enable inputs.
The MIC2537 is available in active-high and active-low ver-
sions in a 16-lead SOP package.
Typical Application
EN
OC
EN
OC
EN
OC
EN
OC
MIC2537
3.3V USB Controller
V
BUS
D+
D–
GND
V
BUS
D+
D
–
GND
MIC5207-3.3
LDO Regulator
IN
OUT
GND
33μF*
Ferrite
Bead
D+
D
–
V+
ENA
FLGA
ENB
FLGB
ENC
FLGC
END
FLGD
IN
NC
OUTA
OUTB
OUTC
Bold
lines indicate
0.1" wide, 1-oz. copper
high-current traces.
Downstream
USB
Port 1
100mA max.
Downstream
USB
Port 2
100mA max.
33μF*
0.1
μF
V
BUS
D+
D
–
GND
V
BUS
D+
D
–
GND
33μF*
OUTD
NC
GND
Downstream
USB
Port 3
100mA max.
Downstream
USB
Port 4
100mA max.
33μF*
0.01μF
0.01μF
0.01μF
0.01μF
4.7
μF
1μF
GND
Upstream V
BUS
4.75V to 5.25V
500mA max.
* 33μF, 16V tantalum or 100μF, 10V electrolytic per port
10k
10k 10k 10k
Typical Bus-Powered Hub
Features
Compliant to USB specifications
3V to 5.5V input
100mA minimum continuous load current per port
425m
typical on-resistance
< 400mA current limit
Individual open-drain fault flag leads
3V/5V-compatible enable inputs
Active-high (-1) and active-low (-2) versions
100
μ
A max. on-state supply current
<1
μ
A typical off-state supply current
16-lead SOP package
–
40
°
C to 85
°
C operation
Applications
USB keyboards
USB bus-powered docking stations
Notebook docking stations
Notebook PCs
PDA
General power distribution
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 |
|---|---|
| MIC2537-2BM | Quad Power Distribution Switch Preliminary Information |
| MIC2548-2BMM | Replaced by PT6522 : |
| MIC2544-1 | Programmable Current Limit High-Side Switch Preliminary Information |
| MIC2544-1BM | Programmable Current Limit High-Side Switch Preliminary Information |
| MIC2544-1BMM | Programmable Current Limit High-Side Switch Preliminary Information |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2537-1BM TR | 功能描述:IC USB SWITCH QUAD 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電源分配開關(guān) 系列:- 特色產(chǎn)品:XRP252 Switches 標(biāo)準(zhǔn)包裝:1 系列:- 類型:高端開關(guān) 輸出數(shù):2 Rds（開）:140 毫歐 內(nèi)部開關(guān):是 電流限制:1.15A 輸入電壓:1.75 V ~ 5.5 V 工作溫度:-40°C ~ 85°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（3x3） 包裝:Digi-Reel® 其它名稱:1016-1691-6 |
| MIC2537-1YM | 功能描述:電源開關(guān) IC - USB Quad USB 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 |
| MIC2537-1YM TR | 功能描述:電源開關(guān) IC - USB Quad USB 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 |
| MIC2537-2BM | 功能描述:IC USB SWITCH QUAD 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電源分配開關(guān) 系列:- 特色產(chǎn)品:XRP252 Switches 標(biāo)準(zhǔn)包裝:1 系列:- 類型:高端開關(guān) 輸出數(shù):2 Rds（開）:140 毫歐 內(nèi)部開關(guān):是 電流限制:1.15A 輸入電壓:1.75 V ~ 5.5 V 工作溫度:-40°C ~ 85°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（3x3） 包裝:Digi-Reel® 其它名稱:1016-1691-6 |
| MIC2537-2BM TR | 功能描述:IC USB SWITCH QUAD 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電源分配開關(guān) 系列:- 特色產(chǎn)品:XRP252 Switches 標(biāo)準(zhǔn)包裝:1 系列:- 類型:高端開關(guān) 輸出數(shù):2 Rds（開）:140 毫歐 內(nèi)部開關(guān):是 電流限制:1.15A 輸入電壓:1.75 V ~ 5.5 V 工作溫度:-40°C ~ 85°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（3x3） 包裝:Digi-Reel® 其它名稱:1016-1691-6 |
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