- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372172 > SP2525 Product Description:Molex KK, 4-way crimp connector, 4 wire (250mm) RoHS Compliant: Yes PDF資料下載
參數(shù)資料
| 型號： | SP2525 |
| 英文描述： | Product Description:Molex KK, 4-way crimp connector, 4 wire (250mm) RoHS Compliant: Yes |
| 中文描述： | 3.0V至5.5V的USB電源控制開關(guān) |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 177K |
| 代理商： | SP2525 |
8
Rev. 8/21/01
SP2525 +3.0 to +5.5 Power Control Switch Copyright 2001 Sipex Corporation
Soft Start Condition
The soft start feature of the SP2525
is imple-
mented by holding the output turn-on rise time
to 1ms. When off, the device has high imped-
ance MOSFET channels that slowly become
low impedance as the device powers on. This
prevents an inrush current from causing voltage
drops that result from charging a capacitive
load and can pull the USB voltage bus below
specified levels. This satisfies the USB voltage
droop requirements for bus-powered applica-
tions.
The
SP2525
can provide inrush current limiting
for applications with large load capacitances
where C
> 10
μ
F. Refer to the circuit in
Figure 7
for a configuration that will meet USB
transient regulation specifications with large
load capacitances.
Enable Input
The ENA and ENB control pins must be driven
to a logic high or logic low for a clearly defined
signal input. Floating these control lines may
cause unpredictable operation.
USB Compliance
The SP2525
is ideal for self-powered and bus-
powered Universal Serial Bus (USB) applica-
tions. A USB port provides a +5.0V bus and
ground return line in addition to a twisted pair
for data.
The SP2525
will comply with the following
USB requirements:
1) The fault current is well below the UL 25VA
safety requirements;
2) The Flag Outputs are available to indicate
fault conditions to USB controllers;
3) The MOSFET switches' low on-resistance
meets USB voltage drop requirements;
4) Each MOSFET switch channel can supply
500mA as required by USB downstream de-
vices;
5) Soft start eliminates any momentary voltage
drops on the upstream port that may occur when
the switches are enabled in bus-powered applica-
tions.
Refer to
Table 1
for a USB compliance summary
of the SP2525. Additional features include the
following:
6) An Undervoltage Lockout ensures that the
device remains off unless there is a valid input
supply voltage present;
7) +3.3V and +5.0V logic compatible enable
inputs;
8) Thermal Shutdown prevents the possibility of
catastrophic switch failure from high-current
loads;
8) The device is available in both active-high and
active-low versions.
Refer to
Figures 8
to
23
for typical performance
characteristics of the SP2525.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP2525-1EN | +3.0V to +5.5V USB Power Control Switch |
| SP2525-2EN | +3.0V to +5.5V USB Power Control Switch |
| SP2526-1NEB | Evaluation Board Manual |
| SP2526-1 | Evaluation Board Manual |
| SP2526-1EN | +3.0V to +5.5V USB Power Control Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP2525-1EN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:+3.0V to +5.5V USB Power Control Switch |
| SP2525-1EN/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:+3.0V to +5.5V USB Power Control Switch |
| SP2525-2EN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:+3.0V to +5.5V USB Power Control Switch |
| SP2525-2EN/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:+3.0V to +5.5V USB Power Control Switch |
| SP2525A | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:USB High-Side Power Switch |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。