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參數(shù)資料
| 型號： | ISL8700A |
| 廠商： | Intersil Corporation |
| 英文描述： | Adjustable Quad Sequencer |
| 中文描述： | 可調四序 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 285K |
| 代理商： | ISL8700A |
10
FN6381.0
October 12, 2006
Application Recommendations
Best practices V
IN
decoupling is required, a 1
μ
F capacitor is
recommended.
Coupling from the ENABLE_X pins to the sensitive UV and
OV pins can cause false OV/UV events to be detected. This
is most relevant for ISL8700A, ISL8702A, ISL8704A parts
due to the ENABLEA and OV pins being adjacent. This
coupling can be reduced by adding a ground trace between
UV and the ENABLE/FAULT signals, as shown in Figure 15.
The PCB traces on OV and UV should be kept as small as
practical and the ENABLE_X and FAULT traces should
ideally not be routed under/over the OV/UV traces on
different PCB layers unless there is a ground or power plane
in between. Other methods that can be used to eliminate this
issue are by reducing the value of the resistors in the
network connected to UV and OV (R2, R3, R5 in Figure 16)
or by adding small decoupling capacitors to OV and UV (C2
and C7 in Figure 16). Both these methods act to reduce the
AC impedance at the nodes, although the latter method acts
to filter the signals which will also cause an increase in the
time that a UV/OV fault takes to be detected
.
When the ISL870XA is implemented on a hot swappable
card that is plugged into an always powered passive back
plane an RC filter is required on the V
IN
pin to prevent a high
dv/dt transient. With the already existing 1
μ
F decoupling
capacitor the addition of a small series R (>50
Ω
) to provide a
time constant >50
μ
s is all that is necessary.
FIGURE 15. LAYOUT DETAIL OF GND BETWEEN PINS 4 AND 5
PIN 4
PIN 5
GND
ISL8700A, ISL8701A, ISL8702A, ISL8703A, ISL8704A, ISL8705A
相關PDF資料 |
PDF描述 |
|---|---|
| ISL8700AIBZ | Adjustable Quad Sequencer |
| ISL8701AIBZ | Adjustable Quad Sequencer |
| ISL8702AIBZ | Adjustable Quad Sequencer |
| ISL8703AIBZ | Adjustable Quad Sequencer |
| ISL8704AIBZ | Adjustable Quad Sequencer |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISL8700AIBZ | 功能描述:監(jiān)控電路 ADJ QD SEQNCR 14N W/ANNEAL RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| ISL8700AIBZ-T | 功能描述:監(jiān)控電路 ADJ QD SEQNCR 14N W/ANNEAL RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| ISL8700IBZ | 功能描述:監(jiān)控電路 ADJ QD SEQNCR 14N W/ANNEAL RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| ISL8700IBZ-T | 功能描述:監(jiān)控電路 ADJ QD SEQNCR 14N W/ANNEAL RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| ISL8701AIBZ | 功能描述:監(jiān)控電路 ADJ QD SEQNCR 14N W/ANNEAL RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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