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부품번호 | BL8509D 기능 |
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기능 | Low Voltage Detector | ||
제조업체 | BELLING | ||
로고 | |||
BL8509D
Low Voltage Detector with Built-in Delay Circuit
Outline:
BL8509D is a series of high precision
voltage detector with ultra low current
consumption (500nA typ. at VDD=VTH+1V) and a
built-in delay circuit. It can work at very low
voltage, which makes it perfect for system reset.
BL8509D is composed of high precision
voltage reference, comparator, delay circuit,
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.
BL8509D is available in SOT-23,SOT-23-
3,SOT-23-5 which is Pb free.
Selection Guide:
Features:
• High-precision detection Voltage: ±2%
• Detection Voltage:1.6V~5.0V (in 0.1V steps)
• Built-in Power on Reset Delay Time circuit::
Refer to Selection Guide
• Operating Voltage range:1.0V~6.0V
• Ultra-low current consumption:0.9uA typ. (at
VDD=3V)
• Two Output forms :CMOS and N-channel open-
drain (Active Low)
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
8509D- XXX X X XX
Pin Alignment:
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Package type:
RM:SOT-23-3
RN:SOT-23-5
RO:SOT-23
Output type:
N:Nch
C:CMOS
Delay time:
A:240mS
B:50mS
C:100mS
D:200mS
E:400mS
Detector voltage:
090……0.9V
100……1.0V
263……2.63V
293……2.93V
300……3.0V
465……4.65V
……
600……6.0V
(In 0.1V step)
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Electrical Characteristics:
BL8509D
Parameter
Operating voltage
Symbol
VDD
Test Condition
Ta=0 to 70℃
Ta=-40 to 105℃
MIN.
1.0
1.1
TYP.
-
-
MAX.
6.0
6.0
Unit
V
Supply Current
Reset Threshold
Reset Threshold
Temp. Coefficient
RST output voltage
Low
(active L type)
IDD
VTH
VTH/⊿T
VOL
VDD=VTH+1V
Ta=25℃
VTH=4.63V Ta=-40 to 85℃
Ta=85 to 105℃
VTH=4.38V
Ta=25℃
Ta=-40 to 85℃
Ta=85 to 105℃
Ta=25℃
VTH=3.08V Ta=-40 to 85℃
Ta=85 to 105℃
Ta=25℃
VTH=2.93V
VTH=2.63V
VTH=1.6~
5.0V
(0.1V step)
Ta=-40 to 85℃
Ta=85 to 105℃
Ta=25℃
Ta=-40 to 85℃
Ta=85 to 105℃
Ta=25℃
Ta=-40 to 85℃
Ta=85 to 105℃
VDD=VTH-0.1V, Isink=1.2mA
VTH≦3.08V
VDD=VTH-0.1V, Isink=3.2mA
VTH>3.08V
-
4.584
4.500
4.400
4.336
4.250
4.160
3.049
3.000
2.920
2.901
2.850
2.780
2.604
2.550
2.500
-1.0
-2.5
-5.0
-
-
-
0.5
4.630
-
-
4.380
-
-
3.080
-
-
2.930
-
-
2.630
-
-
-
-
-
30
2.0
4.676
4.750
4.860
4.424
4.500
4.560
3.111
3.150
3.230
2.959
3.000
3.080
2.656
2.700
2.760
1.0
2.5
5.0
-
µA
V
%
ppm/℃
- 0.3
- 0.4
V
RST output voltage
High
(active L type)
VOH
VDD=VTH+1V Isink=500µA
VTH≦3.08V
VDD=VTH+1V, Isink=800µA
VTH>3.08V
0.8*VDD
VDD-1.5
-
-
-
-
V
RST output voltage
low
(active H type)
VOL
VDD=VTH+1V, Isink=1.2mA
VTH≦3.08V
VDD=VTH+1V, Isink=3.2mA
VTH>3.08V
- - 0.3
V
- - 0.4
RST output voltage
High
(active H type)
VOH
VDD=VTH-0.1V Isink=500µA
VTH≦3.08V
VDD=VTH-0.1V, Isink=800µA
VTH>3.08V
0.8*VDD
VDD-1.5
-
-
-
-
(Note1)This device is tested at Ta=25℃, over temperature limits guaranteed by design only.
(Note2)The parameter is guaranteed by design.
V
Circuit
①
②
①
①
③
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Total 11 Pages
1/1/2013
4페이지 BL8509D
VDD<1V region is, it will be operating limits, The output is undefined.
Function description:
Delay
Comparator
High precision low temperature co-efficiency reference voltage is applied to the
negative input of a comparator. Input voltage, divided by resistor array of Ra and Rb, is
applied to the positive input of the comparator. Output of the comparator passes a delay
circuit and a series of buffer to drive the output CMOS pair.
VDET =VREF*(1+Ra/Rb)
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Total 11 Pages
1/1/2013
7페이지 | |||
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부품번호 | 상세설명 및 기능 | 제조사 |
BL8509 | Low Voltage Detector | SHANGHAI BELLING |
BL8509B | Ultra-small package High-precision Voltage Detector | BELLING |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |