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參數(shù)資料
| 型號： | SP2026-2EN |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | +2.7V to +5.5V USB Power Control Switch |
| 中文描述： | 2.7V至5.5V的USB電源控制開關(guān) |
| 文件頁數(shù)： | 8/14頁 |
| 文件大小： | 164K |
| 代理商： | SP2026-2EN |
8
Rev. 1/23/02 SP2026 +2.7V to +5.5V USB Power Control Switch Copyright 2002 Sipex Corporation
P
USB Compliance
The SP2026
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 SP2026
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 appli-
cations.
Refer to
Table 1
for a USB compliance sum-
mary of the SP2026. Additional features in-
clude the following:
6) An Undervoltage Lockout ensures that the
device remains off unless there is a valid input
supply voltage present;
7) +2.7V 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 7
to
14
for typical performance
characteristics of the SP2026.
Table 1. USB Protocol Compliance of the SP2026 device
Figure 4. Bypass Capacitor at the Supply Pins
ENA 1
FLGA 2
FLGB 3
ENB 4
0.1
μ
F to 1.0
μ
F
8 OUTA
7 IN
6 GND
5 OUTB
V
IN
SP2026
USB REQUIREMENT
Inrush current limiting required
Suspend State of <500
μ
A Required
Bus powered hubs must have 350mV drop from cable plug
to port
Voltage supplied to host or hub port is +4.75V to +5.25V
A device that draws bus power must have a stable supply
within 100ms of VBUS reaching +4.4V
Over-current reporting capability required
SP2026 COMPLIANT FEATURE
Soft start turns on in 1ms
Suspend Current of 1
μ
A maximum
Switch on resistance of 140m
maximum (translates to
70mV at 500mA)
Operating range of +2.7V to +5.5V
Turns on in 1ms
Open drain fault flags
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP2026-2EN/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:+2.7V to +5.5V USB Power Control Switch |
| SP202670JLF | 制造商:TT Electronics / IRC 功能描述:SP202670JLF |
| SP202670KLF | 制造商:TT Electronics / IRC 功能描述:SP202670KLF |
| SP2026R1JLF | 制造商:TT Electronics / IRC 功能描述:SP2026R1JLF |
| SP-2027 | 功能描述:SPEAKER (WITH FRAME) 80DB SENSIT 制造商:soberton inc. 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:100 |
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