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PDF BL8509D Data sheet ( Hoja de datos )
| Número de pieza | BL8509D | |
| Descripción | Low Voltage Detector | |
| Fabricantes | BELLING | |
| Logotipo |  |
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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：
http://www.belling.com.cn
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)
- 1-
Total 16 Pages
1/1/2013
1 page  
BL8509D
Parameter
Reset active
timeout period
VDD to Reset Delay
Symbol
tdel
tTH
Tdel Rank
Ta=-40 to 85℃
A
Ta=85 to 105℃
Ta=-40 to 85℃
B
Ta=85 to 105℃
Ta=-40 to 85℃
C
Ta=85 to 105℃
Ta=-40 to 85℃
D Ta=85 to 105℃
Ta=-40 to 85℃
E Ta=85 to 105℃
VDD=（VTH+1V）
to (VTH-100mV)
(Note2)
MIN.
140
100
35
25
70
49
140
98
280
196
－
TYP.
240
-
50
-
100
-
200
-
400
-
20
MAX.
310
840
65
98
130
195
260
390
520
780
Unit
ms
Circuit
④
－ µs
④
Output Leakage Current
(active L,open drain type)
ILEAK
VDD=VRST=7V
－
－
0.1 µA
⑤
(Note1) This device is tested at Ta=25℃, over temperature limits guaranteed by design only .
(Note2) The parameter is guaranteed by design.
Test Circuit：
http://www.belling.com.cn
- 5-
Total 11 Pages
1/1/2013
5 Page 
Package Outline：
SOT-23:
Package
SOT23
Package dimension：
Devices per
reel
3000
BL8509D
Unit mm
SOT-23-3:
Package
SOT-23-3
Package dimension：
Devices per
reel
3000
Unit
mm
http://www.belling.com.cn
- 11-
Total 11 Pages
1/1/2013
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet BL8509D.PDF ] | |
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