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參數(shù)資料
| 型號： | PIP401 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | OR-ing Intelligent Switch |
| 中文描述： | 400 A BUF OR INV BASED PRPHL DRVR, PSSO6 |
| 封裝： | PLASTIC, SOT-427, D2PAK-7 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大小： | 272K |
| 代理商： | PIP401 |
Philips Semiconductors
PIP401
OR-ing Intelligent Switch
Product data
Rev. 03 — 5 November 2002
3 of 16
9397 750 10578
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
The open-collector overtemperature flag output (TFL) is fed back to the remote
shutdown input of the protected supply. In a parallel redundant system, there will be
at least one other protected supply feeding the system bus via another or-ing device.
7.1 Supply voltage
The PIP401 requires a supply voltage on V
CC
. The supply voltage must be at least
5 V greater than the voltage on VI in order to supply sufficient drive voltage for the
series power switch. The maximum rated supply voltage is 20 V.
7.2 Voltage drop monitoring
7.2.1
Comparator
The comparator monitors the voltage between the input (VI) and the remote sense
input (VRS). When the voltage on VI is greater than the voltage on VRS by more than
a few millivolts, the comparator output goes HIGH, turning on the series power switch.
When the voltage on VI is less than the voltage on VRS, the series power switch is
turned off, blocking the flow of reverse current between VO and VI.
7.2.2
Remote sense input
The remote sense input (VRS) provides a high impedance connection to the load,
bypassing the power supply line inductance. This connection enables the PIP401 to
respond immediately to voltage changes at the load, removing the effects of voltage
transients induced in the power supply line inductance due to changes in load
current.
(1) C1 allows operation for a short time after the auxiliary supply to V
CC
fails.
(2) D1 prevents reverse current flow from VO into the auxiliary supply in the event of failure
of the auxiliary supply.
(3) R1 prevents charging of the input voltage due to current flowing from V
CC
and out of VI.
(4) VRS should be connected to VO at the load point. Direct connection between VRS and
VO at the device pins should only be made if the distance between the PIP401 and the
load is very short, less than 25 mm.
Fig 2.
Functional circuit diagram.
VCC
VRS
GND
system bus
system bus ground
power supply shutdown
(open collector)
auxiliary supply
+
20 V max
input voltage
from power supply
system
ground
03aj16
VO
VI
R1
(100
typ)
C1
(100 nF)
D1
TFL
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| PIP401,118 | 功能描述:電源開關(guān) IC - 配電 OR-ING INTELIGENT SW RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| PIP401 | 制造商:NXP Semiconductors 功能描述:IC MOSFET N SOT-427 |
| PIP401/T3 | 功能描述:電源開關(guān) IC - 配電 OR-ING INTELIGENT SW RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| PIP440 | 制造商:ProTek Devices 功能描述:Diode TVS Single Bi-Dir 623V 15KW 2-Pin 制造商:Microsemi Corporation 功能描述:TVS SGL BI-DIR 623V 15KW 2PIN CASE 11 - Bulk |
| PIP46U | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Fibers can be free cut using fiber cutter |
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