BCD AZ7031R Voltage detector Datasheet

Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
AZ70XX
General Description
Features
The AZ70XX series ICs are under voltage detectors
with a built in voltage threshold and low power consumption. The AZ70XX are specifically designed to
accurately monitor power supplies.
·
The AZ70XX use a precision on-chip voltage reference and a comparator to measure the input operating
voltage. These ICs can accurately reset the system after
detecting voltage at the time of switching power on and
instantaneous power off in various CPU systems and
other logic systems. The detect voltage thresholds are
2.3V/2.5V/2.7V/2.9V/3.1V/3.3V/4.2V/4.5Vfor
AZ7023/25/27/29/31/33/42/45 respectively. Built in
hysteresis helps to prevent erratic operation in the presence of noise.
·
·
·
·
Low Current Consumption:
ICCL=300µA Typical
ICCH=30µA Typical
Low Minimum Operating Voltage for Output
Resetting: 0.8V Typical
Built in Hysteresis Voltage: 50mV Typical
Open Collector Output
Extended Temperature Range: -40 to 85oC
Applications
·
·
·
·
·
The AZ70XX series are available in 2 standard packages: TO-92 and SOT-89-3.
Low Battery Voltage Detector
Power Fail Indicator
Processor Reset Generator
Battery Backup Control
Home Electric Appliances
SOT-89-3
TO-92
Figure 1. Package Types of AZ70XX
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
AZ70XX
Pin Configuration
Z Package
(TO-92)
3
OUT
2
GND
1
VCC
R Package
(SOT-89-3)
1
VCC
2
3
GND OUT
Figure 2. Pin Configuration of AZ70XX (Top View)
Functional Block Diagram
VCC
OUT
+
-
GND
Figure 3. Functional Block Diagram of AZ70XX
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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Preliminary Datasheet
VOLTAGE DETECTOR
Ordering Information
AZ70XX
AZ70XX
-
AZ70
Package
Circuit Type
E1: Lead Free
Blank: Tin Lead
Detect Voltage
23: 2.3V 31: 3.1V
25: 2.5V 33: 3.3V
27: 2.7V 42: 4.2V
29: 2.9V 45: 4.5V
TR: Tape and Reel or Ammo
Blank: Bulk
Package
Z: TO-92
R: SOT-89-3
Temperature
Range
Detector
Voltage
2.3V
2.5V
2.7V
2.9V
TO-92
-40 to 85oC
3.1V
3.3V
4.2V
-40 to 85oC
Marking ID
Packing Type
Lead Free
Tin Lead
Lead Free
AZ7023Z
AZ7023Z-E1
AZ7023Z
AZ7023Z-E1
Bulk
AZ7023ZTR
AZ7023ZTR-E1
AZ7023Z
AZ7023Z-E1
Ammo
AZ7025Z
AZ7025Z-E1
AZ7025Z
AZ7025Z-E1
Bulk
AZ7025ZTR
AZ7025ZTR-E1
AZ7025Z
AZ7025Z-E1
Ammo
AZ7027Z
AZ7027Z-E1
AZ7027Z
AZ7027Z-E1
Bulk
AZ7027ZTR
AZ7027ZTR-E1
AZ7027Z
AZ7027Z-E1
Ammo
AZ7029Z
AZ7029Z-E1
AZ7029Z
AZ7029Z-E1
Bulk
AZ7029ZTR
AZ7029ZTR-E1
AZ7029Z
AZ7029Z-E1
Ammo
AZ7031Z
AZ7031Z-E1
AZ7031Z
AZ7031Z-E1
Bulk
AZ7031ZTR
AZ7031ZTR-E1
AZ7031Z
AZ7031Z-E1
Ammo
AZ7033Z
AZ7033Z-E1
AZ7033Z
AZ7033Z-E1
Bulk
AZ7033ZTR
AZ7033ZTR-E1
AZ7033Z
AZ7033Z-E1
Ammo
AZ7042Z
AZ7042Z-E1
AZ7042Z
AZ7042Z-E1
Bulk
AZ7042ZTR
AZ7042ZTR-E1
AZ7042Z
AZ7042Z-E1
Ammo
AZ7045Z
AZ7045Z-E1
AZ7045Z
AZ7045Z-E1
Bulk
AZ7045ZTR
AZ7045ZTR-E1
AZ7045Z
AZ7045Z-E1
Ammo
2.3V
AZ7023RTR
AZ7023RTR-E1
7023R
E723
Tape & Reel
2.5V
AZ7025RTR
AZ7025RTR-E1
7025R
E725
Tape & Reel
2.7V
AZ7027RTR
AZ7027RTR-E1
7027R
E727
Tape & Reel
2.9V
AZ7029RTR
AZ7029RTR-E1
7029R
E729
Tape & Reel
3.1V
AZ7031RTR
AZ7031RTR-E1
7031R
E731
Tape & Reel
3.3V
AZ7033RTR
AZ7033RTR-E1
7033R
E733
Tape & Reel
4.2V
AZ7042RTR
AZ7042RTR-E1
7042R
E742
Tape & Reel
4.5V
AZ7045RTR
AZ7045RTR-E1
7045R
E745
Tape & Reel
4.5V
SOT-89-3
Part Number
Tin Lead
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
AZ70XX
Absolute Maximum Ratings (Note 1)
Parameter
Supply Voltage
Power Dissipation (Package Limitations)
Symbol
Min
Max
Unit
VCC
-0.3
18
V
TO-92 Package: 500
PD
SOT-89-3 Package: 400
mW
150
o
ESD
500
V
ESD
5000
V
Storage Temperature Range
TSTG
ESD (Machine Model)
ESD (Human Body Mode)
-65
C
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under"Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Supply Voltage
Operating Temperature Range
Symbol
Min
VCC
TOPR
-40
Max
Unit
15
V
85
oC
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
AZ70XX
Electrical Characteristics
Operating Conditions: TA=25oC unless otherwise specified.
Parameter
Detecting Voltage
Symbol
VS
Conditions
RL=200Ω
(Note 2)
VOL ≤ 0.4V
Min
Typ
Max
AZ7023R/Z
2.15
2.3
2.45
AZ7025R/Z
2.35
2.5
2.65
AZ7027R/Z
2.55
2.7
2.85
AZ7029R/Z
2.75
2.9
3.05
AZ7031R/Z
2.95
3.1
3.25
AZ7033R/Z
3.15
3.3
3.45
AZ7042R/Z
4.05
4.2
4.35
AZ7045R/Z
4.35
4.5
4.65
Unit
V
Low-Level Output Voltage
VOL
VCC=VS(min)-0.05V
RL=200Ω (Note 2)
0.4
V
Output Leakage Current
IOH
VCC=15V
0.1
µA
100
mV
Hysteresis Voltage
Detect Voltage Temperature
Coefficient
VHYS
RL=200Ω (Note 2)
30
∆VS/(VS × ∆T) RL=200Ω (Note 2)
50
±0.01
% / oC
Circuit Current at On Time
ICCL
VCC=VS(min)-0.05V
300
500
µA
Circuit Current at Off Time
ICCH
VCC=5.25V
30
50
µA
Minimum Operating Voltage
VOPR
RL=200Ω (Note 2)
VOL ≤ 0.4V
“L”Transmission Delay Time
tpHL
VCC changed from 5.25V to
VS(min)-0.05V, RL=1.0KΩ,
CL=100p (Note 3)
“H”Transmission Delay Time
tpLH
VCC changed from VS(min)0.05V to 5.25V, RL=1.0KΩ,
CL=100p (Note 3)
IOL Ⅰ
0.8
V
10
µs
15
µs
VCC=VS(min)-0.05V
20
TA=25oC (Note 4)
Output Current at On Time
mA
IOL Ⅱ
VCC=VS(min)-0.05V
TA=-40 to 85 oC (Note 4)
16
Note 2: See test circuit 1 and Figure 12.
Note 3: See test circuit 2 and Figure 12.
Note 4: See test circuit 3. Adjusting the regulative power source until the reading value of voltage meter V is 0.4V,
the reading value of current meter A is defined as "Output Current at On Time".
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
AZ70XX
Electrical Characteristics (Continued)
A1
A2
1
RL
VCC
AZ7029
V1
3
OUT
+
GND
10µF
2
V2
Figure 4. Test Circuit 1
RL
1
VCC
Input
Pulse
AZ7029
+
OUT
+5V
10µF
3
GND
CL
2
Figure 5. Test Circuit 2
1
V S(min)-0.05V
V CC
+
10µF
AZ7029
OUT
GND
2
3
A
V
Figure 6. Test Circuit 3
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
AZ70XX
Typical Performance Characteristics
1200
2.95
1100
Minimum Operating Voltage (mV)
AZ7029
Detecting Voltage (V)
2.90
VS (VCC Rising)
2.85
VS-VHYS (VCC Falling)
2.80
2.75
-40
-20
0
20
40
60
1000
AZ7029
900
800
700
600
500
400
-40
80
-20
0
40
60
80
Temperature ( C)
Figure 7. Detecting Voltage vs. Temperature
Figure 8. Minimum Operating Voltage vs. Temperature
70
100
Low-level Output Voltage (mV)
Output Current at on time (mA)
20
O
O
Temperature ( C)
60
50
AZ7029
40
30
75
AZ7029
50
25
20
10
-40
-20
0
20
40
60
0
-40
80
O
-20
0
20
40
60
80
O
Temperature ( C)
Temperature ( C)
Figure 9. Output Current at on Time vs. Temperature
Figure 10. Low-level Output Voltage vs. Temperature
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
AZ70XX
Typical Performance Characteristics (Continued)
Time (s)
Figure 11. Output Voltage Dynamic Response when VCC Increases and Decreases
Operating Diagram
VCC
VS
VS -VHYS
VOUT
tpLH
tpHL
tpLH
Figure 12. AZ70XX Timing Waveform
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Operating Diagram (Continued)
AZ70XX
Figure 12 is a typical timing waveform for AZ70XX
during power-up and temporary power-down period.
Here is some explanations for AZ70XX's operation.
3. During power-down, after a delay time of tpHL
from the moment VCC<VS-VHYS, VOUT will be at its
logic low state. In general, at rated output current and
VCC, VOUT can be pulled down to a voltage as low as
within 0.4V from GND. (See the Electrical
Characteristics section).
1. During power-up period, VOUT will remain
undefined until VCC rises above VOPR (typically
0.8V). After that moment, the output will become
valid and will be at its logic low state while
VOPR<VCC<VS for power-up operating.
4. VOUT will be at its logic low state while VSVHYS>VCC>VOPR for power-down operating.
2. After a delay time of tpLH from the moment
VCC>VS, the VOUT will be at its logic high state. In
general, VOUT is dependent upon the voltage that the
pull up resistor connected to.
5. After VCC falls below VOPR, the output is
undefined.
Typical Applications
VCC +5V
VCC
R1
220
1
1
VCC
AZ70XX
VCC
OUT
GND
R1
3.3k
3
AZ70XX
VCC
OUT
3
+
GND
LED
2
2
Figure 13. Low Voltage Indicator
RESET
CPU
GND
C1
1 µF
Figure 14. CPU Resetting Circuit
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
AZ70XX
Mechanical Dimensions
TO-92
Unit: mm(inch)
1.100(0.043)
3.430(0.135)
MIN
3.700(0.146)
3.300(0.130)
1.400(0.055)
0.360(0.014)
0.510(0.020)
0.000(0.000)
0.380(0.015)
Φ1.600(0.063)
MAX
4.700(0.185)
0.380(0.015)
0.550(0.022)
14.100(0.555)
14.500(0.571)
4.300(0.169)
4.400(0.173)
4.700(0.185)
1.270(0.050)
TYP
2.440(0.096)
2.640(0.104)
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
AZ70XX
Mechanical Dimensions (Continued)
SOT-89-3
Unit: mm(inch)
4.400(0.173)
4.600(0.181)
1.630(0.064)
1.400(0.055)
1.600(0.063)
1.830(0.072)
0.000(0.000)
0.076(0.003)
1.400(0.055)*
1.200(0.047)
0.900(0.035)
3.950(0.156)
4.250(0.167)
R0.200(0.008)
2.300(0.091)
2.600(0.102)
3°
10°
0.360(0.014)
0.360(0.014)
0.360(0.014)
0.480(0.019)
0.480(0.019)
0.440(0.017)
0.440(0.017)
3.000(0.118)
0.560(0.022)
3°
10°
R0.150(0.006)
BCD Semiconductor Manufacturing Limited
Jul. 2005 Rev. 1. 3
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IMPORTANT NOTICE
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use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any
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