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參數(shù)資料
| 型號(hào)： | AP1212LNA |
| 英文描述： | Dual USB High-Side Power Switch |
| 中文描述： | 雙USB高端功率開關(guān) |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 246K |
| 代理商： | AP1212LNA |
AP1212
Dual USB High-Side Power Switch
Function Description
Error Flag
An open-drained output of N-channel MOSFET, the
FLG output is pulled low to signal the following fault
conditions: input undervoltage, output current limit,
and thermal shutdown.
Current Limit
The current limit threshold is preset internally. It
protects the output MOSFET switches from
damage due to undesirable short circuit conditions
or excess inrush current often encountered during
hot plug-in. The low limit of the current limit
threshold of the AP1212 allows a minimum current
of 0.5A through the MOSFET switches. A current
limit condition will signal the error flag.
Thermal Shutdown
When the chip temperature exceeds 140oC for any
reason other than overcurrent fault of either one of
the two MOSFET switches, the thermal shutdown
function turns off both MOSFET switches and
signal the error flag. A hysteresis of 10oC prevents
the MOSFETs from turning back on until the chip
temperature drops to below 130oC.
Marking Information
Anachip Corp.
www.anachip.com.tw
Rev.1.0 Sep.23, 2004
9/11
Supply Filtering
A 0.1μF to 1μF bypass capacitor from IN to GND,
located near the device, is strongly recommended
to control supply transients. Without a bypass
capacitor, an output short may cause sufficient
ringing on the input (from supply lead inductance)
to damage internal control circuitry.
Transient Droop Requirements
USB support dynamic attachment (hot plug-in) of
peripherals. A current surge is caused by the input
capacitance of downstream device. Ferrite beads
are recommended in series with all power and
ground connector pins. Ferrite beads reduce EMI
and limit the inrush current during hot-attachment
by filtering high-frequency signals.
Short Circuit Transient
Bulk capacitance provides the short-term transient
current needed during a hot-attachment event. With
capacitor mounted close to downstream connector
per port should provide transient drop protection.
Printed Circuit Layout
The power circuitry of USB printed circuit boards
requires a customized layout to maximize thermal
dissipation and to minimize voltage drop and EMI.
Part Number
1
4
PDIP/SOP
Logo
Enable Type
H: Active High
L: Active Low
ID code: internal
Xth week: 01~52
Year: "01" =2001
"02" =2002
~
8
5
AP1212 X
YY WW X X
(Top View)
Blank: normal
L: Lead Free Package
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AP1212LNL | Dual USB High-Side Power Switch |
| AP1212LS | Dual USB High-Side Power Switch |
| AP1212LSA | MOSFET; Transistor Polarity:P Channel; Drain Source Voltage, Vds:-40V; Continuous Drain Current, Id:65A; On-Resistance, Rds(on):0.023ohm; Rds(on) Test Voltage, Vgs:-10V; Package/Case:TO-220; Leaded Process Compatible:No |
| AP1212LSL | Dual USB High-Side Power Switch |
| AP1212LSLA | MOSFET; Transistor Polarity:P Channel; Continuous Drain Current, Id:-65A; Package/Case:TO-220; Leaded Process Compatible:No; Mounting Type:Through Hole; Peak Reflow Compatible (260 C):No; Power Dissipation:250W; Voltage Rating:-60V |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AP1212LNL | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:Dual USB High-Side Power Switch |
| AP1212LNLA | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:Dual USB High-Side Power Switch |
| AP1212LS | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:Dual USB High-Side Power Switch |
| AP1212LSA | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:Dual USB High-Side Power Switch |
| AP1212LSG-13 | 功能描述:電源開關(guān) IC - USB INTERFCE USB LO CMOS 1A 0.7V MAX 2.7-5.5V 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 |
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