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PDF BL8509 Data sheet ( Hoja de datos )
| Número de pieza | BL8509 | |
| Descripción | Low Voltage Detector | |
| Fabricantes | SHANGHAI BELLING | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BL8509 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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BL8509
Low Voltage Detector with Built-in Delay Circuit
Outline:
BL8509 is a series of high precision voltage
detector with ultra low current consumption
(500nA typ. at Vdd=3.0V) and a built-in delay
circuit. It can work at very low voltage, which
makes it perfect for system reset.
BL8509 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.
Features
High-precision detection Voltage 2%
Detection Voltage 0.9V~6.0V (in 0.1V steps)
Built-in Power on Reset Delay Time
circuit::Refer to Selection Guide
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 (Active Low)
Two type of output, CMOS and N-channel
open-drain are available.
BL8509 is available in SOT-23 which is Pb
free.
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
http://www.belling.com.cn
- 1-
Total 17 Pages
8/8/2006
1 page  
BL8509
BL8509-440DNRM 4.4V
(Topt 25 ,Unless otherwise specified.)
Symbol
-VDET
ISS
VDDH
VDDL
IOUT
Parameter
Detector Threshold
Current consumption
Maximum operating
voltage
Minimum Operating
voltage
Output current
Conditions
VDD=6.4V
Nch
VDS=0.05V VDD=0.7V
Pch
VDS=-2.1V VDD=8.0V
Reference data
Min.
Typ.
Max.
4.312
4.4 4.488
0.5 1
10
0.5
Unit
V
uA
V
V
0.01
1.5
0.05
3.0
mA
mA
http://www.belling.com.cn
- 5-
Total 17 Pages
8/8/2006
5 Page 
Typical Performance Characteristics
1) Supply current VS. Input voltage
Detector threshold= 0.9V
1.E-05
1.E-06
1.E-07
1.E-08
0
-40º C
25º C
70º C
12 34 56
Input voltage (V)
1.E-05
Detector threshold=3.0V
1.E-06
1.E-07
-40º C
25º C
1.E-08
70º C
01 234 56
Input voltage (V)
BL8509
1.E-05
Detector threshold=2.7V
1.E-06
1.E-07
-40º C
25º C
1.E-08
70º C
012 3456
Input voltage (V)
1.E-05
Detector threshold=4.4V
1.E-06
1.E-07
-40º C
25º C
1.E-08
70º C
0 123456
Input voltage (V)
http://www.belling.com.cn
- 11-
Total 17 Pages
8/8/2006
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet BL8509.PDF ] | |
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