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参数资料
型号： LX6433CSE-TR
厂商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分类： 电源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封装： ROHS COMPLIANT, PLASTIC, SOT-23, 5 PIN
文件页数： 1/6页
文件大小： 181K
代理商： LX6433CSE-TR
PRODUCTION DATA SHEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2003
Rev. 1.1, 2009-02-11
WWW
.Microse
m
i
.CO
M
LX6433
Precision Voltage Monitor
TM
DESCRI PTION
The LX6433 is a precise voltage
monitor programmed to signal a low
supply line condition.
VMON is
connected to the “monitored” supply
line, when VMON drops below the
threshold of 1.085V, RESET line
goes low.
When power is restored
and
VMON
moves
above
the
threshold voltage, RESET remains
low for an additional 100ms to ensure
system reset is fully applied.
Digital filtering inside the LX6433
ignores temporary dips in the VMON
line lasting for less than 10S to
avoid false triggering.
The monitor operates over a supply
range (VIN) of 3V to 6V. The RESET
line is capable of sinking an output
load current of 1mA.
This line is
protected from short circuit to VIN or
Ground without damage.
Tight threshold detection allows for a
1.085V
to
1.125V
window
over
temperature.
System efficiency is
maintained with ultra low IQ of 20A.
The 5 pin SOT-23 package provides
a small form factor similar to industry
standard device types in this category.
This
package
is
RoHS
compliant
allowing Pb free PCB assembly.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATUR ES
Precise Threshold Detection
1.105V ±0.02V
3V to 6.0V Operating Range
Active Low RESET, Sink
Current > 1mA
RESET Pulse Duration
Controlled, typical 100mS
Quiescent Current < 40
μA
Wide Temperature: 0-85°C
No External Components
Required
SOT-23, 5-Pin Package, RoHS
Compliant (Pb-Free)
Similar Devices: FM803,
NCP803 and LM3724
APPLICATIONS/BENEFITS
Portable Microprocessor Core
Voltage Supply Monitor
Supply Monitoring: 1.2V, 2.5V,
3.3V, 5V or any other level.
PRODU C T HIGHL IGHT
VIN
VMON
RESET
GND
LX6433CSE
R Pull-up
(Optional)
3.3 to 5V
VCC
Reset
Ground
1.2V Supply
Microprocessor / ASIC
Figure 1
– LX6433 Typical Application Circuit
PACK AG E OR DER INFORMATION
SE
Plastic SOT-23
5-PIN (Pb Free)
TA(°C)
Supply
Voltage (VIN)
Fault Detection
Threshold Voltage
RoHS Compliant / Pb-free
0 to 85
3 to 6V
1.105V +/-1.8%
LX6433CSE
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX6433CSE-TR)
Device Marking
2975
LL
XX
6644
3333
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