- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383605 > MIC2525-2BM (MICREL INC) USB Power Control Switch Not Recommended for New Designs PDF資料下載
參數(shù)資料
| 型號： | MIC2525-2BM |
| 廠商： | MICREL INC |
| 元件分類： | 電源管理 |
| 英文描述： | USB Power Control Switch Not Recommended for New Designs |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 93K |
| 代理商： | MIC2525-2BM |
January 2000
1
MIC2525
MIC2525
Micrel
MIC2525
USB Power Control Switch
Not Recommended for New Designs
Refer to MIC2025
General Description
The MIC2525 is an integrated high-side power switch, opti-
mized for self-powered and bus-powered Universal Serial
Bus (USB) applications. Few external components are nec-
essary to satisfy USB requirements.
The MIC2525 satisfies the following USB requirements: each
switch channel supplies up to 500mA as required by USB
downstream devices; the switch’s low on-resistance meets
USB voltage drop requirements; fault current is limited to
typically 750mA, 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,
undervoltage lockout (UVLO) to ensure that the device re-
mains off unless there is a valid input voltage present, and
3.3V and 5V logic compatible enable inputs.
The MIC2525 is a UL recognized component and is available
in active-high and active-low versions in 8-pin DIP and SOIC
packages.
For new designs, please see the MIC2025/2075.
Typical Application
V
BUS
D+
D
–
GND
USB
Port
Data
EN
FLG
GND
NC
OUT
IN
ON/OFF
OVERCURRENT
GND
MIC2525-2
3.3V USB Controller
OUT
NC
V
5.0V
0.1μF
10k
MIC5207-3.3
IN
OUT
GND
4.50V to 5.25V
Upstream V
BUS
100mA max.
Ferrite
Beads
150μF
V
BUS
D+
D
–
GND
Data
1μF
1μF
100k
VIN
3.3V
Single-Port USB Self-Powered Hub
Features
Compliant to USB specifications
UL Recognized Component
3V to 5.5V input
500mA minimum continuous load current per port
140m
maximum on-resistance
1.25A maximum short circuit current limit
Open-drain fault flag pins
110
μ
A typical on-state supply current
1
μ
A typical off-state supply current
Output can be forced higher than input (off-state)
Thermal shutdown
2.4V typical undervoltage lockout (UVLO)
1ms turn-on (soft-start) and fast turnoff
Active-high or active-low enable versions
8-pin SOIC and DIP packages
Applications
USB hosts and self-powered hubs
USB bus-powered hubs
Hot plug-in power supplies
Battery-charger circuits
UL Recognized Component
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 |
|---|---|
| MIC2525-2BN | USB Power Control Switch Not Recommended for New Designs |
| MIC2529-1BM | CONNECTOR ACCESSORY |
| MIC2529-2BM | Single-Channel USB Power Controller Advance Information |
| MIC2529 | Single-Channel USB Power Controller Advance Information |
| MIC2536 | Replaced by PT6526 : |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2526-1BM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC2526-1BM T&R | 制造商:Micrel Inc 功能描述:DUAL-CHANNEL POWER DISTRIBUTION SWITCH |
| MIC2526-2BM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC2526-2BM T&R | 制造商:Micrel Inc 功能描述:DUAL-CHANNEL POWER DISTRIBUTION SWITCH |
| MIC2526-2BN | 制造商:Micrel Inc 功能描述:Peripheral Driver, Dual Driver, 8 Pin, Plastic, DIP |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。