BELLING BL8509D Low voltage detector with built-in delay circuit Datasheet

BL8509D
Low Voltage Detector with Built-in Delay Circuit
Features:
:
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.
•
•
•
•
•
•
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 opendrain (Active Low)
Two type of output, CMOS and N-channel
open-drain are available.
Application:
:
BL8509D is available in SOT-23,SOT-233,SOT-23-5 which is Pb free.
•
•
•
•
Selection Guide:
:
8509D- XXX
X X XX
•
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 Alignment:
:
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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BL8509D
Product Mark Information:
:
Top View:
:VZXYW
Product Name
Top Side Mark(VZ)
Output Type
BL8509D-263
BL8509D-293
BL8509D-263
BL8509D-293
H1
H2
I1
I2
Nchannel
Nchannel
CMOS
CMOS
Top Side Mark(X)
Delay Times
A
B
C
D
E
240mS
50mS
100mS
200mS
400mS
Means assembly year and weeks
Year
Y
Week
W
2010
0
1
A
2011
1
…
…
2012
2
26
Z
2013
3
27
…
…
…
…
52
Pin Description:
PIN Number
PIN Name
Function
VSS
GND Pin
1
VOUT
Voltage detection output Pin
3
2
VDD
Voltage input Pin
-
-
4
NC
No connection
-
-
5
NC
No connection
SOT-23
1
SOT-23-3
1
SOT-23-5
3
2
2
3
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BL8509D
Block diagram:
N channel open-drain
CMOS output
Absolute Maximum Ratings:
:
PARAMETER
SYMBOL
RATING
UNIT
Supply Voltage
VDDmax
7
V
Output
RST,RST
Voltage
GND-0.3 ~VDDmax+0.3 (CMOS Type)
V
GND-0.3 ~7 ( Open Drain Type)
Input
IDD
20
mA
Current
IOUT
20
mA
Dissipation
PD
150 (Not attached PCB)
mW
Operating Temperature
Topr
-40 ~ +105
℃
Storage Temperature
Tstg
-65 ~ +150
℃
Output
Power
Current
Recommended Work Conditions:
:
PARAMETER
Operating Temperature
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SYMBOL
Topr
RATING
-40 ~
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+105
UNIT
℃
1/1/2013
BL8509D
Electrical Characteristics:
:
Parameter
Symbol
Operating voltage
VDD
Supply Current
IDD
Test Condition
MIN.
TYP.
MAX.
Ta=0 to 70℃
1.0
-
6.0
Ta=-40 to 105℃
1.1
-
6.0
VDD=VTH+1V
-
0.5
2.0
Ta=25℃
4.584
4.630
4.676
VTH=4.63V
VTH=4.38V
VTH=3.08V
Reset Threshold
VTH
VTH=2.93V
VTH=2.63V
VTH=1.6~
5.0V
(0.1V step)
Reset Threshold
Temp. Coefficient
RST output voltage
Low
(active L type)
RST output voltage
High
(active L type)
RST output voltage
low
(active H type)
RST output voltage
High
(active H type)
Ta=-40 to 85℃
4.500
-
4.750
Ta=85 to 105℃
4.400
-
4.860
Ta=25℃
4.336
4.380
4.424
Ta=-40 to 85℃
4.250
-
4.500
Ta=85 to 105℃
4.160
-
4.560
Ta=25℃
3.049
3.080
3.111
Ta=-40 to 85℃
3.000
-
3.150
Ta=85 to 105℃
2.920
-
3.230
Ta=25℃
2.901
2.930
2.959
Ta=-40 to 85℃
2.850
-
3.000
Ta=85 to 105℃
2.780
-
3.080
Ta=25℃
2.604
2.630
2.656
Ta=-40 to 85℃
2.550
-
2.700
Ta=85 to 105℃
2.500
-
2.760
Ta=25℃
-1.0
-
1.0
Ta=-40 to 85℃
-2.5
-
2.5
Ta=85 to 105℃
-5.0
-
5.0
-
30
-
-
-
0.3
VTH/⊿T
VDD=VTH-0.1V, Isink=1.2mA
VTH≦3.08V
VOL
VOL
Circuit
V
①
µA
②
V
①
%
ppm/℃
①
V
VDD=VTH-0.1V, Isink=3.2mA
VTH>3.08V
VOH
Unit
-
-
0.4
VDD=VTH+1V Isink=500µA
VTH≦3.08V
0.8*VDD
-
-
VDD=VTH+1V, Isink=800µA
VTH>3.08V
VDD-1.5
VDD=VTH+1V, Isink=1.2mA
VTH≦3.08V
-
-
0.3
VDD=VTH+1V, Isink=3.2mA
VTH>3.08V
-
-
0.4
VDD=VTH-0.1V Isink=500µA
VTH≦3.08V
0.8*VDD
-
-
V
-
-
③
V
VOH
V
VDD=VTH-0.1V, Isink=800µA
VTH>3.08V
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.
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BL8509D
Parameter
Symbol
Tdel Rank
A
B
Reset active
timeout period
tdel
C
D
E
VDD to Reset Delay
tTH
MIN.
TYP.
MAX.
Unit
Circuit
Ta=-40 to 85℃
140
240
310
Ta=85 to 105℃
100
-
840
Ta=-40 to 85℃
35
50
65
Ta=85 to 105℃
25
-
98
Ta=-40 to 85℃
70
100
130
Ta=85 to 105℃
49
-
195
ms
④
Ta=-40 to 85℃
140
200
260
Ta=85 to 105℃
98
-
390
Ta=-40 to 85℃
280
400
520
Ta=85 to 105℃
VDD=(VTH+1V)
to (VTH-100mV)
196
-
780
-
20
-
µs
④
-
-
0.1
µA
⑤
(Note2)
Output Leakage Current
(active L,open drain type)
ILEAK
VDD=VRST=7V
(Note1) This device is tested at Ta=25℃, over temperature limits guaranteed by design only .
(Note2) The parameter is guaranteed by design.
Test
Circuit:
:
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BL8509D
Timing
Chart:
:
VDD<1V region is, it will be operating limits, The output is undefined.
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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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BL8509D
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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BL8509D
Typical Performance Characteristics:
:
1) Supply current VS. Input voltage
DETECTING VOLTAGE
SUPPLY CURRENT
4.0
2.0
Supply Current(μA)
Output Voltage(V)
3.5
3.0
2.5
2.0
1.5
1.0
1.5
1.0
0.5
0.5
0.0
0.0
0
0
0.5
1
1.5
2
2.5
3
Input Voltage(V)
3.5
1
2
4
DETECTING VOLTAGE VS TEMPERATURE
3
4
Input Voltage(V)
5
6
7
SUPPLY CURRENT
VS TEMPERATURE
2.98
2.0
Detecting Voltage(V)
2.97
SUPPLY CURRENT
2.96
2.95
2.94
2.93
2.92
2.91
2.90
1.5
1.0
0.5
2.89
0.0
2.88
-40
-20
0
20
40
60
80
-40
100
-20
0
TEMPERATURE(℃)
20
40
60
80
100
Temperature(℃)
RESET ACTIVE TIMEOUT PERIOD
VS TEMPERATURE
VDD TO RESET DELAY VS TEMPERATURE
VS TEMPERATURE
300
Reset Active Timeout
Period (ms)
280
260
VDD TO RESET DELAY
VS TEMPERATURE (ms)
20
15
240
220
10
200
180
5
160
140
0
-40
-20
0
20
40
60
80
100
Temperature(℃)
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-40
-20
0
20
40
60
80
Temperature(℃)
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100
BL8509D
"L"OUTPUT VOLTAGE VS TEMPERATURE
(active L)
"H"OUTPUT VOLTAGE VS TEMPERATURE
(active L)
4.1
"H"OUTPUT VOLTAGE
(V)
"L"OUTPUT VOLTAGE(V)
0.4
4.0
0.3
3.9
0.2
0.1
3.8
0.0
-40
-20
0
20
40
60
80
100
3.7
-40
Temperature(℃)
-20
0
20
40
60
80
Temperature(℃)
Typical applications:
:
Open drain OUTPUT
CMOS OUTPUT
Note:
Please note that there is any possibility of circuit oscillation when resistance put in the line VIN.
Load current and load resistance should be adjusted, which not over power dissipation level.
We shall not be liable for any trouble or damage caused by using this circuit .
In the event a problem which may affect industrial property or any other rights of us or a third party is
encountered during the use of information described in these circuit, Mitsumi Electric Co., Ltd. shall not
be liable for any such problem, nor grant a license therefore.
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100
BL8509D
Package Outline:
:
SOT-23:
Package
SOT23
Devices per
reel
3000
Unit
mm
Devices per
reel
3000
Unit
mm
Package dimension:
SOT-23-3:
Package
SOT-23-3
Package dimension:
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BL8509D
SOT-23-5:
Package
SOT-23-5
Devices per
reel
3000
Unit
mm
Package dimension:
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