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LP3808 Datasheet(PDF) 1 Page - Lowpower Semiconductor inc

Part No. LP3808
Description  High-precision Low Voltage Detector
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Maker  POWER [Lowpower Semiconductor inc]
Homepage  http://www.lowpowersemi.com
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LP3808 Datasheet(HTML) 1 Page - Lowpower Semiconductor inc

   
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Preliminary Datasheet
LP3808
LP3808 – 00 Ver. 1.0 Datasheet
Dec.-2006
Page 1 of 5
High-precision Low Voltage Detector
General Description
LP3808 is a series of high precision voltage detector
with ultra low current consumption(500nA typ. at
Vdd=3.0V). It can work at very low voltage, which
makes it perfect for system reset.
LP3808
is
composed
of
high
precision
voltage
reference, comparator, output driver and resistor array.
Internally preset detect voltage has a low temperature
drift and requires no external trimming.
Two type of output, CMOS and N-channel open-drain are
available.LP3808 is available in SOT-89-3,SOT-23-3, SOT23-5
packages which is Pb free.
Ordering Information
LP3808 -
□ □ □
□ □
F: Pb-Free
Package Type
B3: SOT23-3
B5: SOT23-5
X3: SOT89-3
Output Type
C: CMOS Output
N: Nch Open Drain
Detector Voltage
09:
0.9V
10:
1.0V
.
.
.
50:
5.0V
60:
6.0V
Marketing information
Please see website.
Feature
High-precision detection Voltage 2%
Detection Voltage 0.9V~6.0V (in 0.1V steps)
Precise hysteresis 4% typ.
Operating Voltage range 0.7V~10V
Ultra-low current consumption 500nA typ. (at VDD
3.0V)
Two Output forms CMOS and N-channel open-drain
Application
Power monitor for portable equipment such as
PDA,DSC,Mobile phone,Notebook,MP3
CPU and Logic Circuit Reset
Battery Checker
Battery Back-up Circuit
Power Failure Detector
Pin Assignment
Pin Description
Pin Number
SOT89
SOT23
SOT25
Pin
Name
Function
1
1
1
Vout
Voltage Detection output
Pin
2
3
2
VDD
Voltage input pin
3
2
3
VSS
GND pin
4,5
NC
No Connection


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