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參數(shù)資料
| 型號： | ILC5140 |
| 廠商： | Impala Linear Corporation |
| 英文描述： | CMOS MULTILEVEL VOLTAGE DETECTOR |
| 中文描述： | 多級電壓檢測器的CMOS |
| 文件頁數(shù)： | 5/6頁 |
| 文件大?。?/td> | 63K |
| 代理商： | ILC5140 |
The ILC514X is designed to monitor the terminal voltage of a
power source such as a battery and to assert a flag depend-
ing on the internally set threshold voltages. Up to four flags
can be used to warn of declining stages of a battery’s life.
The flags are arranged in order of decreasing threshold val-
ues; therefore Flag 1 is asserted at V
TH1
, Flag 2 is asserted
at a voltage V
TH2
which is lower than V
TH1
and so on. The
ILC514C is ideally suited for systems such as PDA’s, note-
books and personal electronics where multiple warning and
resets are desirable. An example of such a requirement is in
a PDA, where Flag 1 is asserted at V
TH1
= 2.9V “LOW BAT-
TERY WARNING” flag; Flag 2 is asserted at V
TH2
= 2.7V
“DISABLE CMOS WRITE”; Flag 3 is asserted at V
TH3
= 2.5V
“DISABLE IrDA PORT” and Flag 4 is asserted at V
TH4
= 2.3V
“DISABLE SYSTEM EXCEPT CHARGING.”
The ILC514X has three output configurations: Open Drain
(ILC5140) RESET, Push Pull (ILC5141) RESET and Push
Pull (ILC5142) RESET
The ILC5140 series will be offered in a variety of voltage
thresholds corresponding to industry standard requirements.
In addition, customer defined voltage thresholds are avail-
able on a special ordering basis. Please consult Impala
marketing for conditions surrounding custom thresholds.
The ILC5140 samples the input voltage once every 400 ms.
This sampling rate was chosen to conserve battery life and
at the same time keep a reasonble vigil on the terminal volt-
age level. Once the thrshold has been passed, the flag
enable function reacts within 30μs.
In addition to the 400ms sampling, a sample and hold cir-
cuit compares the input voltage to the most recent sample
and if there is a DV greater than 20mV the input sampling
is turned on continuously until either a flag is asserted or the
threshold is regained. If, during the continuous sampling a
thrshold is crossed, the flag is enabled. This method inher-
ently prevents accidental tripping of the flag during minor
input voltage level glitches.
Once the threshold is crossed on an increasing voltage
level, the flag is disabled 140ms after such a threshold is
detected. This is a minimum time since an addtional 400ms
may be added if the threshold is not detected at the begin-
ning of a regular sampling.
The flags are labelled Flag 1, Flag 2, Flag 3, Flag 4.
Voltage thrsholds are arranged in order of decreasing volt-
age levels, therefore Flag 1 will have a higher threshold
than Flag 2 and so on.
CMOS Multilevel Voltage Detector
Impala Linear Corporation
5
(408) 574-3939
www.impalalinear.com
Dec 2000
ILC514x 1.1
Detailed Descripton
Threshold Detect to Flag Enable
RESET
AND
RESET
Voltage Thresholds
Voltage Thrsholds for the Flags
Advance
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ILC5140XCS | CMOS MULTILEVEL VOLTAGE DETECTOR |
| ILC6301 | RESISTOR, M.F, SMT, 182K, 1% |
| ILC6370AP-25 | Rectangular Industrial Connector Housing; Series:C-146; No. of Contacts:16; Gender:Female; Body Material:Aluminum Alloy; Connecting Termination:Screw; For Use With:C146 Rectangular Circular Connectors; Operating Voltage:400V RoHS Compliant: Yes |
| ILC6370AP-33 | Rectangular Industrial Connector Housing; Series:C-146; No. of Contacts:16; Gender:Female; Body Material:Aluminum Alloy; Connecting Termination:Screw; Features:Spring Cover; For Use With:C146 Rectangular Circular Connectors RoHS Compliant: Yes |
| ILC6370AP-50 | Rectangular Industrial Connector Housing; Series:C-146; No. of Contacts:24; Gender:Female; Body Material:Aluminum Alloy; Connecting Termination:Screw; For Use With:C146 Rectangular Circular Connectors; Operating Voltage:400V RoHS Compliant: Yes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ILC5140XCS | 制造商:IMPALA 制造商全稱:IMPALA 功能描述:CMOS MULTILEVEL VOLTAGE DETECTOR |
| ILC555 | 制造商:IKSEMICON 制造商全稱:IK Semicon Co., Ltd 功能描述:CMOS general purpose timer |
| ILC555_11 | 制造商:IKSEMICON 制造商全稱:IK Semicon Co., Ltd 功能描述:CMOS general purpose timer |
| ILC555D | 制造商:IKSEMICON 制造商全稱:IK Semicon Co., Ltd 功能描述:CMOS general purpose timer |
| ILC555N | 制造商:IKSEMICON 制造商全稱:IK Semicon Co., Ltd 功能描述:CMOS general purpose timer |
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