BELLING BL8509-300 Low voltage detector with built-in delay circuit Datasheet

BL8509
Low Voltage Detector with Built-in Delay Circuit
Features
Outline:
High-precision detection Voltage
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.
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
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.
Two type of output, CMOS and N-channel
open-drain are available.
2%
0.7V~10V
Ultra-low current consumption
VDD 3.0V)
500nA typ. (at
Two Output forms CMOS and N-channel
open-drain (Active Low)
Application
BL8509 is available in SOT-23 which is Pb
free.
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
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BL8509
Pin Alignment
Selection Guide
8509- XXX
X X XX
Package type
RM SOT-23-3
Output type
N Nch
C CMOS
Delay time
A 50mS
B 100mS
C 150mS
D 200mS
E 250mS
F 300mS
G 400mS
Detector voltage
090
0.9V
100
1.0V
263
2.63V
300
3.0V
465
4.65V
600
6.0V
(In 0.1V step)
Pin Description:
PIN Number
PIN Name
Function
1
2
3
VSS
VOUT
VDD
GND Pin
Voltage detection output Pin
Voltage input Pin
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BL8509
Block diagram:
CMOS output
N channel open-drain
Absolute Maximum Ratings
Input Voltage range -------------------------------------------------------------------------------------0.3V~12V
Output Voltage range-----------------------------------------------------------------------------------0.3V~12V
Maximum Output current -----------------------------------------------------------------------------70mA
Maximum power dissipation -------------------------------------------------------------------------150mW
Ambient temperature ---------------------------------------------------------------------------------- -40~+70 C
Storage temperature----------------------------------------------------------------------------------- -40~125 C
Lead temperature and time --------------------------------------------------------------------------260 C,10S
Recommended Work Conditions
Item
Input Voltage range
Ambient temperature
Min
0.7
-40
Recommended
Max
10
70
25
unit
V
Electrical Characteristics
BL8509-090DNRM
0.9V
Symbol
Parameter
-VDET
ISS
Detector Threshold
Current consumption
Maximum operating
voltage
Minimum Operating
voltage
VDDH
VDDL
IOUT
Output current
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(Topt
Conditions
VDD=2.9V
25
,Unless otherwise specified.)
Reference data
Min.
Typ.
Max.
0.882
0.9
0.918
1
1.5
Unit
V
uA
10
Nch
VDS=0.05V VDD=0.7V
VDS=0.50V VDD=0.8V
Pch
VDS=-2.1V VDD=4.50V
- 3Total 17 Pages
V
0.5
V
0.01
0.05
0.05
0.50
mA
1.0
2.0
mA
8/8/2006
BL8509
BL8509-270DNRM
2.7V
Symbol
Parameter
-VDET
ISS
Detector Threshold
Current consumption
Maximum operating
voltage
Minimum Operating
voltage
VDDH
VDDL
IOUT
Output current
BL8509-300DNRM
Parameter
-VDET
ISS
Detector Threshold
Current consumption
Maximum operating
voltage
Minimum Operating
voltage
VDDL
IOUT
Output current
BL8509-340DNRM
Parameter
-VDET
ISS
Detector Threshold
Current consumption
Maximum operating
voltage
Minimum Operating
voltage
VDDL
IOUT
Output current
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25
,Unless otherwise specified.)
Min.
2.646
VDD=4.7V
Reference data
Typ.
Max.
2.7
2.754
0.5
1
Unit
V
uA
10
V
0.5
Nch
VDS=0.05V
VDD=0.70V
Pch
VDS=-2.1V
VDD=4.50V
V
mA
0.01
0.05
1.0
2.0
mA
(Topt
Conditions
25
,Unless otherwise specified.)
Min.
2.94
VDD=5.0V
Reference data
Typ.
Max.
3.0
3.06
0.5
1
Unit
V
uA
10
V
0.5
Nch
VDS=0.05V
VDD=0.7V
Pch
VDS=-2.1V
VDD=4.50V
3.4V
Symbol
VDDH
Conditions
3.0V
Symbol
VDDH
(Topt
(Topt
Conditions
V
mA
0.01
0.05
1.0
2.0
25
mA
,Unless otherwise specified.)
Min.
3.332
VDD=5.0V
Reference data
Typ.
Max.
3.4
3.468
0.5
1
Unit
10
0.5
Nch
VDS=0.05V
VDD=0.7V
Pch
VDS=-2.1V
VDD=4.50V
- 4Total 17 Pages
V
uA
V
V
mA
0.01
0.05
1.0
2.0
mA
8/8/2006
BL8509
BL8509-440DNRM
4.4V
Symbol
Parameter
-VDET
ISS
Detector Threshold
Current consumption
Maximum operating
voltage
Minimum Operating
voltage
VDDH
VDDL
IOUT
Output current
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(Topt
Conditions
25
,Unless otherwise specified.)
Min.
4.312
VDD=6.4V
Reference data
Typ.
Max.
4.4
4.488
0.5
1
Unit
10
0.5
Nch
VDS=0.05V
VDD=0.7V
Pch
VDS=-2.1V
VDD=8.0V
- 5Total 17 Pages
V
uA
V
V
mA
0.01
0.05
1.5
3.0
mA
8/8/2006
BL8509
Electrical Characteristics By Detector Threshold
Detector Threshold
Supply Current1
-Vdet[V]
Iss1[uA]
Part Number
Min.
Typ.
Max.
BL8509-0900XXXXX
0.882
0.900
0.918
BL8509-1000XXXXX
0.980
1.000
1.020
BL8509-1100XXXXX
1.078
1.100
1.122
BL8509-1200XXXXX
1.176
1.200
1.224
BL8509-1300XXXXX
1.274
1.300
1.326
BL8509-1400XXXXX
1.372
1.400
1.428
BL8509-1500XXXXX
1.470
1.500
1.530
BL8509-1600XXXXX
1.568
1.600
1.632
BL8509-170XXXX
1.666
1.700
1.734
BL8509-180XXXX
1.764
1.800
1.836
BL8509-190XXXX
1.862
1.900
1.938
BL8509-200XXXX
1.960
2.000
2.040
BL8509-210XXXX
2.058
2.100
2.142
BL8509-220XXXX
2.156
2.200
2.244
BL8509-230XXXX
2.254
2.300
2.346
BL8509-240XXXX
2.352
2.400
2.448
BL8509-250XXXX
2.450
2.500
2.550
BL8509-260XXXX
2.548
2.600
2.652
BL8509-270XXXX
2.646
2.700
2.754
BL8509-280XXXX
2.744
2.800
2.856
BL8509-290XXXX
2.842
2.900
2.958
BL8509-300XXXX
2.940
3.000
3.060
BL8509-310XXXX
3.038
3.100
3.162
BL8509-320XXXX
3.136
3.200
3.264
BL8509-330XXXX
3.234
3.300
3.366
BL8509-340XXXX
3.332
3.400
3.468
BL8509-350XXXX
3.430
3.500
3.570
BL8509-360XXXX
3.528
3.600
3.672
BL8509-370XXXX
3.626
3.700
3.774
BL8509-380XXXX
3.724
3.800
3.876
BL8509-390XXXX
3.822
3.900
3.978
BL8509-400XXXX
3.920
4.000
4.080
BL8509-410XXXX
4.018
4.100
4.182
BL8509-420XXXX
4.116
4.200
4.284
BL8509-430XXXX
4.214
4.300
4.386
BL8509-440XXXX
4.312
4.400
4.488
BL8509-450XXXX
4.410
4.500
4.590
BL8509-460XXXX
4.508
4.600
4.692
BL8509-470XXXX
4.606
4.700
4.794
BL8509-480XXXX
4.704
4.800
4.896
BL8509-490XXXX
4.802
4.900
4.998
BL8509-500XXXX
4.900
5.000
5.100
BL8509-510XXXX
4.998
5.100
5.202
BL8509-520XXXX
5.096
5.200
5.304
BL8509-530XXXX
5.194
5.300
5.406
BL8509-540XXXX
5.292
5.400
5.508
BL8509-550XXXX
5.390
5.500
5.610
BL8509-560XXXX
5.488
5.600
5.712
BL8509-570XXXX
5.586
5.700
5.814
BL8509-580XXXX
5.684
5.800
5.916
BL8509-590XXXX
5.782
5.900
6.018
BL8509-600XXXX
5.880
6.000
6.120
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Condition
Vdd=
(-Vdet)
+0.1V
Typ.
0.5
- 6Total 17 Pages
Supply Current2
Iss2[uA]
Max.
1.0
Condition
Typ.
Max.
1.0
1.5
0.5
1.0
Vdd=
(-Vdet)
+2V
8/8/2006
BL8509
Output Current1
Output Current2
Iout1[mA]
Condition Min. Typ. Condition
Iout2[mA]
Min.
Vdd=0.8
0.1
5V
Vdd=1.0V
NCH,
VDS=0.05V
NCH,
0.01 0.05
,
VDS=0.5V
VDD=0.7V
VDD=1.5V
0.2
Typ.
Minimum
Detector Threshold
Operating Voltage Temperature Coefficient
VDDL[V]
-VDET/ Tppm/°C
Typ.
Max.
Condition
Typ.
0.5
1.0
0.5
1.0
0.7
2.0
-40 C
Topt
85 C
100
Electrical Characteristics by Output Delay Time
Part Number
8509-xxxAxxx
8509-xxxBxxx
8509-xxxCxxx
8509-xxxDxxx
8509-xxxExxx
8509-xxxFxxx
8509-xxxGxxx
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Test Condition
VDD=1.0V to Vdet+1.0V
- 7Total 17 Pages
Output Delay Time
Min.
Typ.
Max.
45
90
135
180
225
270
360
50
100
150
200
250
300
400
55
110
165
220
275
330
440
Unit
ms
8/8/2006
BL8509
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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8/8/2006
BL8509
Detector Treshold(Vdet)
=Release Voltage
Supply
Voltage
Minimum
Operating Voltage
Output
Voltage
(OUT)
No.
Tdelay
I
II
III
Operation status
VDD>Vdet
VDD drops below Vdet
VDD drops further below
Output status
Output voltage is equal to the supply voltage
Output voltage equals to GND level
Output voltage is undefined
IV
V
VDDL
VDD rises above VDDL
VDD rises above Vdet
Output voltage equals to GND level
Output voltage equals to supply voltage after Tdelay
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- 9Total 17 Pages
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BL8509
Test circuits
1
Supply current test circuit
2
Detector threshold test circuit
BL8509
BL8509
3
NCH Drive Output Current Test Circuit
4
PCH Drive Output Current Test Circuit
BL8509
BL8509
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- 10Total 17 Pages
8/8/2006
BL8509
Typical Performance Characteristics
1) Supply current VS. Input voltage
Detector threshold= 0.9V
Detector threshold=2.7V
1.E-05
Supply current (A)
Supply current(A)
1.E-05
1.E-06
-40ºC
1.E-07
25ºC
70ºC
1.E-06
-40ºC
1.E-07
25ºC
70ºC
1.E-08
1.E-08
0
1
2
3
4
5
6
0
2
3
4
Input voltage (V)
Input voltage (V)
Detector threshold=3.0V
Detector threshold=4.4V
5
6
1.E-05
Supply current (A)
1.E-05
Supply current(A)
1
1.E-06
-40ºC
1.E-07
25ºC
1.E-06
1.E-07
-40ºC
25ºC
70ºC
70ºC
1.E-08
1.E-08
0
1
2
3
4
5
6
0
Input voltage (V)
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1
2
3
4
5
6
Input voltage (V)
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BL8509
2) Detector Threshold VS. Temperature
Detector threshold=2.7V
0.95
0.94
0.93
0.92
0.91
0.90
0.89
0.88
0.87
0.86
0.85
2.78
Detector threshold(V)
Detector threshold (V)
Detector threshold= 0.9V
2.74
2.70
2.66
2.62
2.58
2.54
-50
-30
-10
10
30
50
70
90
-50
-30
-10
Temperature (°C)
30
50
70
90
50
70
90
Detector threshold=4.4V
Detector threshold=3.0V
4.50
3.04
4.48
3.02
Detector threshold(V)
Detector threshold(V)
10
Temperature(°C)
3.00
2.98
2.96
2.94
2.92
4.46
4.44
4.42
4.40
4.38
4.36
4.34
4.32
2.90
-50
-30
-10
10
30
50
70
90
4.30
-50
Temperature(°C)
-30
-10
10
30
Temperature(°C)
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BL8509
3
Nch Driver Output Current VS. VDS
BL8509-090xxx
BL8509-270xxx
8.00E-04
1.20E-02
1.00E-02
Output current A)
Output current A)
7.00E-04
6.00E-04
5.00E-04
4.00E-04
3.00E-04
2.00E-04
VDD=0.7V
VDD=0.8V
1.00E-04
0.00E+00
0.00
0.20
0.40
0.60
8.00E-03
6.00E-03
4.00E-03
VDD=1.0V
VDD=2.0V
2.00E-03
0.00E+00
0.00
0.80
0.50
VDS (V)
2.00
2.50
BL8509-440xxx
1.20E-02
2.50E-02
Output current A)
1.00E-02
Output current A)
1.50
VDS (V)
BL8509-300xxx
8.00E-03
6.00E-03
4.00E-03
VDD=1.0V
VDD=2.0V
2.00E-03
0.00E+00
0.00
1.00
0.50
1.00
1.50
2.00
2.50
VDS (V)
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2.00E-02
1.50E-02
1.00E-02
VDD=1.0V
VDD=2.0V
VDD=3.0V
5.00E-03
0.00E+00
0.00
1.00
2.00
3.00
VDS (V)
- 13Total 17 Pages
8/8/2006
4.00
BL8509
4
NCH Driver Output Current vs. Input Voltage
Detector threshold=2.7V
1.E-02
-40ºC
Output Current Iout (A)
Output Current Iout (A)
1.E-02
Detector threshold=3.0V
25ºC
75ºC
8.E-03
4.E-03
-40ºC
25ºC
75ºC
8.E-03
4.E-03
0.E+00
0.E+00
0
1
2
3
0
1
Input Voltage Vin (V)
5
3
PCH Driver Output Current vs. Input Current
Detector threshold=2.7V
Detector threshold=0.9V
8.0
20.0
VDS=0.5V
VDS=0.7V
6.0
Output Current Iout mA
Output Current Iout(mA)
2
Input Voltage Vin (V)
4.0
2.0
VDS=0.5V
VDS=1.0V
VDS=1.5V
VDS=2.0V
15.0
10.0
0.0
5.0
0.0
0
2
4
6
Input Voltage Vin
8
0
V
1
2
3
4
Input Voltage Vin
5
6
V
Detector threshold=4.4V
Output Current Iout mA
25.0
VDS=0.5V
VDS=1.0V
VDS=1.5V
VDS=2.0V
20.0
15.0
10.0
5.0
0.0
0
2
4
6
Input Voltage Vin
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8
10
V
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8/8/2006
7
BL8509
Typical applications
Note
1. R0 is unnecessary for CMOS output
products.
2. The value of R0 need to be selected in
different application, Typical value is
470k
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8/8/2006
BL8509
Package Outline
SOT-23-3:
Package
SOT-23-3
Devices per
reel
3000
Unit
mm
Package dimension
Taping Specification
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BL8509
Taping reel dimension
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- 17Total 17 Pages
8/8/2006
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