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參數(shù)資料
| 型號(hào)： | MIC2525 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Replaced by PT6523 : |
| 中文描述： | USB電源控制開(kāi)關(guān)不推薦用于新設(shè)計(jì) |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 93K |
| 代理商： | MIC2525 |
MIC2525
Micrel
MIC2525
10
January 2000
During the capacitance charging time, the device enters into
constant-current mode. As the capacitance is charged, the
current decreases below the short circuit current-limit thresh-
old, and the flag will then be deasserted.
In USB applications, it is required that output bulk capaci-
tance is utilized to support hot-plug events. When the MIC2525
is enabled, the flag may go active for about 1ms due to inrush
current exceeding the current-limit setpoint. Additionally,
during hot-plug events, inrush currents may also cause the
flag to go active for 30
μ
s. Since these conditions are not valid
overcurrent faults, the USB controller must ignore the flag
during these events. To prevent this erroneous overcurrent
reporting, a 1ms RC filter as shown in Figure 4 may be used.
Alternatively, a 1ms debounce routine may be programmed
into the USB logic controller, eliminating the need for the RC
filter.
10k
10k
V+
0.1
μF
MIC2525
EN
OUT
FLG
GND
OUT
NC
NC
IN
1
8
2
7
3
6
4
5
OVERCURRENT
USB Controller
Figure 4. Transient Filter
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC2525-1BM | Replaced by PT6523 : |
| MIC2525-1BN | USB Power Control Switch Not Recommended for New Designs |
| MIC2525-2BM | USB Power Control Switch Not Recommended for New Designs |
| MIC2525-2BN | USB Power Control Switch Not Recommended for New Designs |
| MIC2529-1BM | CONNECTOR ACCESSORY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2525-1BM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC2525-2BM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 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 |
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