AZ70XX [BCDSEMI]
VOLTAGE DETECTOR; 电压检测器型号: | AZ70XX |
厂家: | BCD SEMICONDUCTOR MANUFACTURING LIMITED |
描述: | VOLTAGE DETECTOR |
文件: | 总13页 (文件大小:161K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
General Description
Features
The AZ70XX series ICs are under voltage detectors
with a built in voltage threshold and low power con-
sumption. The AZ70XX are specifically designed to
accurately monitor power supplies.
·
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
The AZ70XX use a precision on-chip voltage refer-
ence 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
·
·
·
o
Extended Temperature Range: -40 to 85 C
other logic systems. The detect voltage thresholds are Applications
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 pres-
ence of noise.
·
·
·
·
·
Low Battery Voltage Detector
Power Fail Indicator
Processor Reset Generator
Battery Backup Control
Home Electric Appliances
The AZ70XX series are available in 2 standard pack-
ages: TO-92 (bulk or ammo packing) and SOT-89-3.
TO-92
SOT-89-3
TO-92 Ammo Packing
Figure 1. Package Types of AZ70XX
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
1
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Pin Configuration
Z Package
(TO-92)
R Package
(SOT-89-3)
Z Package
(TO-92 Ammo Packing)
3
OUT
3
OUT
2
GND
2
GND
1
2
3
1
1
VCC
VCC
VCC
GND OUT
Figure 2. Pin Configuration of AZ70XX (Top View)
Functional Block Diagram
VCC
OUT
+
-
GND
Figure 3. Functional Block Diagram of AZ70XX
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
2
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Ordering Information
-
AZ70
E1: Lead Free
Blank: Tin Lead
Circuit Type
TR: Tape and Reel or Ammo
Blank: Bulk
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
Package
Z: TO-92
R: SOT-89-3
Part Number
Marking ID
Temperature
Range
Detect
Voltage
Package
Packing Type
Tin Lead
Lead Free
Tin Lead
AZ7023Z
AZ7023Z
AZ7025Z
AZ7025Z
AZ7027Z
AZ7027Z
AZ7029Z
AZ7029Z
AZ7031Z
AZ7031Z
AZ7033Z
AZ7033Z
AZ7042Z
AZ7042Z
AZ7045Z
AZ7045Z
7023R
Lead Free
AZ7023Z-E1
AZ7023Z-E1
AZ7025Z-E1
AZ7025Z-E1
AZ7027Z-E1
AZ7027Z-E1
AZ7029Z-E1
AZ7029Z-E1
AZ7031Z-E1
AZ7031Z-E1
AZ7033Z-E1
AZ7033Z-E1
AZ7042Z-E1
AZ7042Z-E1
AZ7045Z-E1
AZ7045Z-E1
E723
AZ7023Z
AZ7023ZTR
AZ7025Z
AZ7023Z-E1
Bulk
Ammo
2.3V
2.5V
2.7V
2.9V
3.1V
3.3V
4.2V
4.5V
AZ7023ZTR-E1
AZ7025Z-E1
Bulk
AZ7025ZTR
AZ7027Z
AZ7025ZTR-E1
AZ7027Z-E1
Ammo
Bulk
AZ7027ZTR
AZ7029Z
AZ7027ZTR-E1
AZ7029Z-E1
Ammo
Bulk
AZ7029ZTR
AZ7031Z
AZ7029ZTR-E1
AZ7031Z-E1
Ammo
-40 to 85oC
TO-92
Bulk
AZ7031ZTR
AZ7033Z
AZ7031ZTR-E1
AZ7033Z-E1
Ammo
Bulk
AZ7033ZTR
AZ7042Z
AZ7033ZTR-E1
AZ7042Z-E1
Ammo
Bulk
AZ7042ZTR
AZ7045Z
AZ7042ZTR-E1
AZ7045Z-E1
Ammo
Bulk
AZ7045ZTR
AZ7023RTR
AZ7025RTR
AZ7027RTR
AZ7029RTR
AZ7031RTR
AZ7033RTR
AZ7042RTR
AZ7045RTR
AZ7045ZTR-E1
AZ7023RTR-E1
AZ7025RTR-E1
AZ7027RTR-E1
AZ7029RTR-E1
AZ7031RTR-E1
AZ7033RTR-E1
AZ7042RTR-E1
AZ7045RTR-E1
Ammo
2.3V
2.5V
2.7V
2.9V
3.1V
3.3V
4.2V
4.5V
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
7025R
E725
7027R
E727
7029R
E729
-40 to 85oC
SOT-89-3
7031R
E731
7033R
E733
7042R
E742
7045R
E745
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
3
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
VCC
Value
Unit
Supply Voltage
-0.3 to 20
V
TO-92 Package: 400
SOT-89-3 Package: 500
150
Power Dissipation (Package Limitations,
TA=25oC)
PD
mW
oC
oC
TJ
Operating Junction Temperature
Storage Temperature Range
TSTG
-65 to 150
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 Maxi-
mum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Symbol
VCC
Min
Max
18
Unit
V
Supply Voltage
oC
TA
Operating Temperature Range
-40
85
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
4
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Electrical Characteristics
o
T =25 C, unless otherwise specified.
A
Parameter
Symbol
Conditions
AZ7023R/Z
Min
2.15
2.35
2.55
2.75
2.95
3.15
4.05
4.35
Typ
2.3
2.5
2.7
2.9
3.1
3.3
4.2
4.5
Max
2.45
2.65
2.85
3.05
3.25
3.45
4.35
4.65
Unit
AZ7025R/Z
AZ7027R/Z
AZ7029R/Z
AZ7031R/Z
AZ7033R/Z
AZ7042R/Z
AZ7045R/Z
RL=200Ω
(Note 2)
VDET
Detect Voltage
V
V
OL ≤ 0.4V
VCC=VDET(min)-0.05V
VOL
Low-level Output Voltage
0.4
V
RL=200Ω (Note 2)
µA
IOH
VCC=15V
Output Leakage Current
Hysteresis Voltage
0.1
VHYS
RL=200Ω (Note 2)
30
50
100
mV
∆VDET/(VDET
× ∆T)
Detect Voltage Temperature
Coefficient
% /oC
RL=200Ω (Note 2)
±0.01
ICCL
VCC=VDET(min)-0.05V
VCC=5.25V
Circuit Current at On Time
Circuit Current at Off Time
300
30
500
50
µA
µA
ICCH
RL=200Ω (Note 2)
VOPR
Minimum Operating Voltage
0.8
10
V
VOL ≤ 0.4V
VCC changed from 5.25V to
VDET(min)-0.05V, RL=1.0KΩ,
CL=100p (Note 3)
tpHL
tpLH
µs
“L”Transmission Delay Time
VCC changed from VDET(min)-
0.05V to 5.25V, RL=1.0KΩ,
CL=100p (Note 3)
15
µs
“H”Transmission Delay Time
VCC=VDET(min)-0.05V
TA=25oC (Note 4)
IOL
Ⅰ
Ⅱ
20
16
Output Current at On Time
mA
VCC=VDET(min)-0.05V
TA=-40 to 85 oC (Note 4)
IOL
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".
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
5
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Electrical Characteristics (Continued)
A1
A2
1
RL
VCC
3
V1
AZ7029
OUT
+
GND
2
10µF
V2
Figure 4. Test Circuit 1
RL
1
VCC
+
+5V
10µF
3
Input
Pulse
AZ7029
OUT
GND
2
CL
Figure 5. Test Circuit 2
1
VCC
+
3
VDET(min)-0.05V
10µF
AZ7029
OUT
A
GND
2
V
Figure 6. Test Circuit 3
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
6
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Typical Performance Characteristics
1200
1100
1000
900
2.95
AZ7029
2.90
AZ7029
VDET+ (VCC Rising)
800
2.85
700
VDET- (VCC Falling)
600
2.80
500
400
-40
2.75
-40
-20
0
20
40
60
80
-20
0
20
40
60
80
Temperature (OC)
Temperature (OC)
Figure 7. Detect Voltage vs. Temperature
Figure 8. Minimum Operating Voltage vs. Temperature
100
75
70
60
50
40
30
20
10
AZ7029
AZ7029
50
25
0
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
Temperature (OC)
Temperature (OC)
Figure 9. Output Current at On Time vs. Temperature
Figure 10. Low-level Output Voltage vs. Temperature
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
7
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Typical Performance Characteristics (Continued)
Time (s)
Figure 11. Output Voltage Dynamic Response when VCC Increases and Decreases
Operating Diagram
VCC
VDET+
VHYS
VDET-
VOPR
GND
VOUT
tpHL
tpLH
tpHL
tpLH
Figure 12. AZ70XX Timing Waveform (Note 5)
Note 5: Detect voltage: V
Release voltage: V
DET+
DET-
Hysteresis voltage (V
): V
-V
Minimum operating voltage: V
OPR
HYS
DET+ DET-
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
8
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Operating Diagram (Continued)
Figure 12 is a typical timing waveform for AZ70XX.
typical). Below minimum operating voltage, the out-
put is undefined.
In normal steady-state operation when V >V
,
CC
DET-
the output will be in a logic high state and V
is
OUT
3. During power-up, V
will remain undefined until
OUT
dependent upon the voltage that the pull-up resistor
connected to.
V
rises above V
, at which time the output will
OPR
CC
become valid. V
will be in its active low state
OUT
Here is some explanations for AZ70XX's operation.
while
V
<V
<V
(V
=V
+V
).
HYS
OPR
CC
DET+
DET+
DET-
V
is the release voltage. V
means the hystere-
DET+
HYS
1. When the input voltage V falls below V
, the
DET-
CC
sis voltage and is the difference voltage between the
and V
output will pull down to logic low after a delay time of
tpHL. In general, at rated output current and V
V
.
DET-
DET+
,
CC
V
can be pulled down to a voltage as low as within
OUT
4. When V rises above V
, the output will be in
DET+
CC
0.4V from GND. (See the Electrical Characteristics
section). The voltage level V
its inactive state. After a delay time of tpLH, V
will be in its logic high state .
OUT
means the detect
DET-
voltage.
2. The output, V
, will stay valid until V falls
CC
OUT
below the minimum operating voltage, V
(0.8V
OPR
Typical Applications
VCC +5V
VCC
R1
3.3k
R1
220
1
1
VCC
VCC
VCC
CPU
GND
3
3
AZ70XX
OUT
AZ70XX
OUT
RESET
+
GND
2
GND
2
LED
C1
1 µF
Figure 13. Low Voltage Indicator
Figure 14. CPU Resetting Circuit
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
9
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Mechanical Dimensions
TO-92
Unit: mm(inch)
1.100(0.043)
1.400(0.055)
3.430(0.135)
MIN
0.360(0.014)
0.510(0.020)
0.000(0.000)
0.380(0.015)
Φ1.600(0.063)
MAX
4.400(0.173)
4.700(0.185)
0.380(0.015)
0.550(0.022)
1.270(0.050)
TYP
2.440(0.096)
2.640(0.104)
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
10
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Mechanical Dimensions (Continued)
TO-92 Ammo Packing
Unit: mm(inch)
12.400(0.488)
13.000(0.512)
±1.000(0.039)
±1.000(0.039)
ΔP
4.400(0.173)
4.600(0.181)
Δh
3.400(0.134)
3.600(0.142)
4.400(0.173)
4.600(0.181)
19.000(0.748)
21.000(0.827)
0.380(0.015)
0.550(0.022)
2.200(0.087)
2.800(0.110)
2.200(0.087)
2.800(0.110)
1.000 (0.039) MAX
15.500(0.610)
16.500(0.650)
5.500(0.217)
6.500(0.256)
6.050(0.238)
6.650(0.262)
8.500(0.335)
9.500(0.374)
2.500(0.098)
MIN
3.550(0.140)
4.150(0.163)
3.800(0.150)
4.200(0.165)
12.500(0.492)
12.900(0.508)
17.500(0.689)
19.000(0.748)
0.150(0.006)
0.250(0.010)
0.350(0.014)
0.450(0.018)
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
11
Preliminary Datasheet
VOLTAGE DETECTOR
AZ70XX
Mechanical Dimensions (Continued)
SOT-89-3
Unit: mm(inch)
4.400(0.173)
4.600(0.181)
1.400(0.055)
1.600(0.063)
1.630(0.064)
1.830(0.072)
0.000(0.000)
0.076(0.003)
1.400(0.055)*
R0.200(0.008)
2.300(0.091)
2.600(0.102)
3°
0.360(0.014)
0.480(0.019)
0.440(0.017)
0.360(0.014)
0.440(0.017)
0.360(0.014)
0.520(0.020)
0.560(0.022)
3.000(0.118)
R0.150(0.006)
Mar. 2007 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
12
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cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any
particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use
of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or
other rights nor the rights of others.
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