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Voltage Detector. HT7027A-2 Datasheet

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Voltage Detector. HT7027A-2 Datasheet






HT7027A-2 Detector. Datasheet pdf. Equivalent




HT7027A-2 Detector. Datasheet pdf. Equivalent





Part

HT7027A-2

Description

Voltage Detector



Feature


Features • Low power consumption • Low temperature coefficient • High input voltage range (up to 30V) • Qu iescent current 2.5μA • Output volt age accuracy: tolerance ±1% • Built -in hysteresis characteristic • TO92 , SOT89 and SOT23-5 package Application s • Battery checkers • Level sele ctors • Power failure detectors • Microcomputer reset • Battery memory bac.
Manufacture

Holtek Semiconductor

Datasheet
Download HT7027A-2 Datasheet


Holtek Semiconductor HT7027A-2

HT7027A-2; kup • Non-volatile RAM signal storage protectors HT70xxA-2 TinyPowerTM Volt age Detector General Description The HT 70xxA-2 series devices area set of thre e terminal low power voltage detectors implemented in CMOS technology. Each vo ltage detector in the series detects a particular fixed voltage ranging from 2 .2V to 8.2V. The voltage detectors cons ist of a high-precis.


Holtek Semiconductor HT7027A-2

ion and low power consumption standard v oltage source as well as a comparator, hysteresis circuit, and an output drive r. CMOS technology ensures low power co nsumption. Although designed primarily as fixed voltage detectors, these de .


Holtek Semiconductor HT7027A-2

.

Part

HT7027A-2

Description

Voltage Detector



Feature


Features • Low power consumption • Low temperature coefficient • High input voltage range (up to 30V) • Qu iescent current 2.5μA • Output volt age accuracy: tolerance ±1% • Built -in hysteresis characteristic • TO92 , SOT89 and SOT23-5 package Application s • Battery checkers • Level sele ctors • Power failure detectors • Microcomputer reset • Battery memory bac.
Manufacture

Holtek Semiconductor

Datasheet
Download HT7027A-2 Datasheet




 HT7027A-2
Features
• Low power consumption
• Low temperature coefficient
• High input voltage range (up to 30V)
• Quiescent current 2.5μA
• Output voltage accuracy: tolerance ±1%
• Built-in hysteresis characteristic
• TO92, SOT89 and SOT23-5 package
Applications
• Battery checkers
• Level selectors
• Power failure detectors
• Microcomputer reset
• Battery memory backup
• Non-volatile RAM signal storage protectors
HT70xxA-2
TinyPowerTM Voltage Detector
General Description
The HT70xxA-2 series devices area set of three
terminal low power voltage detectors implemented in
CMOS technology. Each voltage detector in the series
detects a particular fixed voltage ranging from 2.2V to
8.2V. The voltage detectors consist of a high-precision
and low power consumption standard voltage source
as well as a comparator, hysteresis circuit, and an
output driver. CMOS technology ensures low power
consumption.
Although designed primarily as fixed voltage
detectors, these devices can be used with external
components to detect user specified threshold voltages.
Selection Table
Part No.
Detectable
Voltage
HT7022A-2 2.2V
HT7024A-2 2.4V
HT7027A-2 2.7V
HT7033A-2 3.3V
HT7039A-2 3.9V
HT7044A-2 4.4V
HT7050A-2 5.0V
HT7082A-2 8.2V
Hysteresis
Width
0.110V
0.120V
0.135V
0.165V
0.195V
0.220V
0.250V
0.410V
Tolerance
±1%
Note: ″xx″ stands for detectable voltages.
Package
TO92
SOT89
SOT23-5
Marking
70xxA-2 (for TO92)
70xxA-2 (for SOT89)
xxA2 (for SOT23-5)
Rev. 1.50
1 May 16, 2016




 HT7027A-2
Block Diagram
N Channel Open Drain Output (Normal Open; Active Low)
VDD
HT70xxA-2
VO UT
VR EF
GND
Output Table & Curve
V OUT
VDD
VOUT
VDD>VDET(+)
Hi-Z
VDD≤VDET(−)
VSS
V D E T V D E T ´ 1 .0 5
V HYS
D a s h lin e ... V IN fr o m L O ® H I
S o lid lin e ... V IN fr o m H I ® L O
V IN
Pin Assignment
TO 92
7 0 x x A -2
F r o n t V ie w
S O T89
7 0 x x A -2
O UT VDD VSS
S id e V ie w
O UT VDD VSS
O UT VDD VSS
S O T 2 3 -5
NC
NC
x x A 2 T o p V ie w
O UT VDD VSS
O UT VDD VSS
Rev. 1.50
2 May 16, 2016




 HT7027A-2
HT70xxA-2
Absolute Maximum Ratings
Supply Voltage ....................................................VSS−0.3V to VSS+33V
Output Voltage................................................... VSS−0.3V to VDD+0.3V
Output Current............................................................................. 50mA
Power Consumption................................................................. 200mW
Storage Temperature.................................................... −50°C to 125°C
Operating Temperature.................................................. −40°C to 85°C
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.
Electrical Characteristics
HT7022A-2
Symbol
VDET
VHYS
IDD
VDD
IOL
D V OUT
D T a ´ V DET
tDELAY
Parameter
Detection Voltage
Hysteresis Width
Operating Current
Operating Voltage
Output Sink Current
Test Conditions
VDD Conditions
——
——
3.2V No load
——
VDET–0.2V VOUT=0.2V
Min. Typ. Max.
2.178
0.02VDET
1.5
1
2.200
0.05VDET
2.5
2
2.222
0.10VDET
4.0
30
Temperature Coefficient — -40°C<Ta<85°C
— ±100 —
Output Delay Time
— RL=100kΩ (see fig 1)
— 200
Ta=25°C
Unit
V
V
µA
V
mA
ppm/°C
µs
HT7024A-2
Symbol
VDET
VHYS
IDD
VDD
IOL
D V OUT
D T a ´ V DET
tDELAY
Parameter
Detection Voltage
Hysteresis Width
Operating Current
Operating Voltage
Output Sink Current
Test Conditions
VDD Conditions
——
——
3.4V No load
——
VDET–0.2V VOUT=0.2V
Min.
Typ.
Max.
2.376
0.02VDET
1.5
1
2.400
0.05VDET
2.5
2
2.424
0.10VDET
4.0
30
Temperature Coefficient — -40°C<Ta<85°C
— ±100 —
Output Delay Time
— RL=100kΩ (see fig 1)
— 200
Ta=25°C
Unit
V
V
µA
V
mA
ppm/°C
µs
Rev. 1.50
3 May 16, 2016



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