HM70C38NR 概述
Low Power Voltage Detector
HM70C38NR 数据手册
通过下载HM70C38NR数据手册来全面了解它。这个PDF文档包含了所有必要的细节,如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载HM70 series
Low Power Voltage Detector
Features
Low power consumption
High input voltage (up to 12V)
Low temperature coefficient
Output voltage accuracy: tolerance ±1% or ±2%
TO92, SOT89 and SOT23 package
Built-in hysteresis characteristic
Applications
Battery checkers
Microcomputer reset
Level selectors
Battery memory backup
Power failure detectors
Non-volatile RAM signal storage protectors
General Description
HM70
The
series devices area set of three
hysteresis circuit, and an output driver (CMOS
inverter or NMOS open drain). CMOS technology
ensures low power consumption.
terminal low power voltage detectors implemented
in CMOS technology. Each voltage detector in the
series detects a particular fixed voltage ranging
from 0.9V to 5.0V. The voltage detectors consist of
a high-precision and low power consumption
standard voltage source as well as a comparator,
Selection Table
Although designed primarily as fixed voltage
detectors, these devices can be used with external
components to detect user specified threshold
voltages.
Part No.
HM70C09XX
HM7009XX
HM70C10XX
HM7010XX
Det. Voltage
0.9V
0.9V
1.0V
1.0V
1.1V
1.1V
1.2V
1.2V
…
Hys. Width
4%
Output
CMOS
NMOS
CMOS
NMOS
CMOS
NMOS
CMOS
NMOS
…
Tolerance
±2%
±2%
±2%
±2%
±2%
±2%
±2%
±2%
±2%
±2%
±2%
Package
4%
4%
4%
TO92
SOT89
HM70C11XX
HM7011XX
HM70C12XX
HM7012XX
…
4%
4%
SOT23-3
SOT23-5
4%
4%
4%
HM70C50XX
HM7050XX
5.0V
5.0V
4%
CMOS
NMOS
4%
Order Information
HM70
ꢀ
①②③④⑤
DESIGNATOR
DESCRIPTION
DESIGNATOR
DESCRIPTION
Package Type:
Output Configuration:
C=CMOS
M=SOT23-3
P=SOT89
①
④
⑤
(space)
=N-ch open drain
N=SOT25
T=TO-92(Standard)
L=TO-92(Custom pin configuration
Device Orientation:
Detect Voltage
25=2.5V
R=Embossed Taped(Right)
L=Embossed Taped(Left)
H=Paper Type(TO-92)
B=Bag(TO-92)
②③
38=3.8V
Ver1.1
1
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70 series
Low Power Voltage Detector
Block Diagram
Output Table & Curve
VDD≤VDET(-)
VSS
VDD
VOUT
VDD>VDET(+)
Hi-Z
Pin Assignment
Ver1.1
2
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70 series
Low Power Voltage Detector
Absolute Maximum Ratings
Supply Voltage ................................-0.3V to 12V
Storage Temperature ..................-50℃ to 125℃
Operating Temperature .................-40℃ to 85℃
Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maximum
Ratings” may cause substantial damage to the device. Functional operation of this device at other
conditions beyond those listed in the specification is not implied and prolonged exposure to extreme
conditions may affect device reliability.
Thermal Information
Symbol
Parameter
Package
Max.
Unit
SOT23
500
℃/W
Thermal Resistance (Junction to
Ambient) (Assume no ambient
airflow, no heat sink)
SOT89
TO92
200
200
θ
℃/W
℃/W
JA
SOT23
SOT89
TO92
0.20
0.50
0.50
W
W
W
PD
Power Dissipation
Note: PD is measured at Ta= 25℃
Electrical Characteristics
VDF=0.8V~5.0V
Ta=25℃
Symbol
VDET
Parameter
Test Conditions
Min.
Typ.
VDF
Max.
Unit
V
VDF=0.8V~2.2V
VDF=2.3V~5.0V
Detection Voltage
Hysteresis Width
VDF*0.98
VDF*1.02
0.02
0.04
VDET
0.7
0.8
0.9
1.0
1.1
-
0.08
VDET
2.3
2.7
3.0
3.2
3.6
10
VHYS
-
V
VDET
Vin=1.5V
Vin=2.0V
Vin=3.0V
Vin=4.0V
Vin=5.0V
-
-
-
IDD
Operating Current
-
-
μA
-
VDD
IOL
Operating Voltage
Output Sink Current
-
0.7
V
2V
VOUT=0.2V
0.5
-
1
-
-
mA
VDET
VDF Ta
-25℃
Temperature
Coefficient
±
-
ppm/℃
<Ta<125℃
100
Ver1.1
3
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70 series
Low Power Voltage Detector
Typical Performance Characteristics
(1) Output Voltage vs Input voltage
(2) Supply Current vs. Input Voltage
(3) Detect, Release Voltage vs. Ambient Temperature
Ver1.1
4
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70 series
Low Power Voltage Detector
Application Circuits
Microcomputer Reset Circuit
Normally a reset circuit is required to
protect the microcomputer system from
malfunctions due to power line inter-
rupttions. The following examples
show how different output configure-
tions perform a reset function in
various systems.
NMOS open drain output application
for separate power supply
HM70XXPR
5V Power Line Monitoring Circuit
Generally, minimum operating
a
NMOS open drain output application
with R-C delay
voltage of 4.5V is guaranteed in a 5V
power line system. The HM61 is
recommended for use as 5V power line
monitoring circuit.
HM70XXPR
5V power line monitor with power-on
reset
Power-on Reset Circuit
With several external components, the
NMOS open drain type of the
HM61 series can be used to
perform a power-on reset function as
shown:
HM70XXPR
With 5V voltage regulator
HM70XXPR
Ver1.1
5
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70 series
Low Power Voltage Detector
HM7050
Malfunction Analysis
The following circuit demonstrates the
way a circuit analyzes malfunctions by
monitoring the variation or spike noise
of power supply voltage.
HM70XXPR
Change of Detectable Voltage
If the required voltage is not found in
the standard product selection table, it
is possible to change it by using
external resistance dividers or diodes.
Varying the detectable voltage with a
resistance divider
HM70XXPR
Charge Monitoring Circuit
The following circuit shows a charged
monitor for protection against battery
deterioration by overcharging. When
the voltage of the battery is higher than
the set detectable voltage, the
transistor turns onto bypass the charge
current, protecting the battery from
overcharging.
HM70XXPR
HM70XXPR
Varying the detectable voltage with a
diode
HM70XXPR
Level Selector
The following diagram illustrates a logic level selector.
Ver1.1
6
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70 series
Low Power Voltage Detector
HM7050PR
HM7039PR
Ver1.1
7
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70 series
Low Power Voltage Detector
Package Information
3-pin TO92 Outline Dimensions
Ver1.1
8
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70 series
Low Power Voltage Detector
SOT-89-3L Package Information
Notes
1. All dimensions are in millimeters.
2. Tolerance ±0.10mm (4 mil) unless otherwise specified
3. Package body sizes exclude mold flash and gate burrs. Mold flash at the non-lead sides should be less than 5 mils.
4. Dimension L is measured in gauge plane.
5. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact.
Ver1.1
9
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70 series
Low Power Voltage Detector
3-pin SOT23-3 Outline Dimensions
Ver1.1
10
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70 series
Low Power Voltage Detector
5-pin SOT23-5 Outline Dimensions
Ver1.1
11
Oct 3,2011
Shenzhen H&M Semiconductor Co.Ltd
http://www.hmsemi.com
HM70C38NR 相关器件
型号 | 制造商 | 描述 | 价格 | 文档 |
HM70C38PB | HMSEMI | Low Power Voltage Detector | 获取价格 | |
HM70C38PH | HMSEMI | Low Power Voltage Detector | 获取价格 | |
HM70C38PL | HMSEMI | Low Power Voltage Detector | 获取价格 | |
HM70C38PR | HMSEMI | Low Power Voltage Detector | 获取价格 | |
HM70C38TB | HMSEMI | Low Power Voltage Detector | 获取价格 | |
HM70C38TH | HMSEMI | Low Power Voltage Detector | 获取价格 | |
HM70C38TL | HMSEMI | Low Power Voltage Detector | 获取价格 | |
HM70C38TR | HMSEMI | Low Power Voltage Detector | 获取价格 | |
HM70C39LB | HMSEMI | Low Power Voltage Detector | 获取价格 | |
HM70C39LH | HMSEMI | Low Power Voltage Detector | 获取价格 |
HM70C38NR 相关文章
- 2024-09-20
- 5
- 2024-09-20
- 9
- 2024-09-20
- 8
- 2024-09-20
- 6