HT7022A-1 Detector Datasheet

HT7022A-1 Datasheet, PDF, Equivalent


Part Number

HT7022A-1

Description

Voltage Detector

Manufacture

Holtek Semiconductor

Total Page 16 Pages
Datasheet
Download HT7022A-1 Datasheet


HT7022A-1
Features
• Low power consumption
Low temperature coefficient
• High input voltage range (up to 30V)
Quiescent current 3μA
• Output voltage accuracy: tolerance ±3%
• Built-in hysteresis characteristic
• 3-pin TO92, 3-pin SOT89, 3-pin SOT23 and
5-pin SOT23 package
Applications
• Battery checkers
• Level selectors
• Power failure detectors
• Microcomputer reset
• Battery memory backup
Non-volatile RAM signal storage protectors
HT70xxA-1
TinyPowerTM Voltage Detector
General Description
The HT70xxA-1 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-1 2.2V
HT7024A-1 2.4V
HT7027A-1 2.7V
HT7033A-1 3.3V
HT7039A-1 3.9V
HT7044A-1 4.4V
HT7050A-1 5.0V
HT7082A-1 8.2V
Hysteresis
Width
0.110V
0.120V
0.135V
0.165V
0.195V
0.220V
0.250V
0.410V
Tolerance
±3%
Note: ″xx″ stands for detectable voltages.
Package
TO92
SOT89
SOT23
SOT23-5
Marking
70xxA-1 (for TO92)
70xxA-1 (for SOT89)
0xxA (for SOT23)
0xxA (for SOT23-5)
Rev. 2.40
1 August 01, 2018

HT7022A-1
Block Diagram
N Channel Open Drain Output (Normal Open; Active Low)
VDD
HT70xxA-1
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
Pin Assignment
TO 92
S O T89
7 0 x x A -1
F r o n t V ie w
7 0 x x A -1
O UT VDD VSS
S id e V ie w
O UT VDD VSS
O UT VDD VSS
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
S O T23
VDD
3
0xxA
12
O UT VSS
O UT VSS
S O T 2 3 -5
NC
NC
0 x x A T o p V ie w
O UT VDD VSS
O UT VDD VSS
Rev. 2.40
2 August 01, 2018


Features Features • Low power consumption • Low temperature coefficient • High input voltage range (up to 30V) • Qu iescent current 3μA • Output voltag e accuracy: tolerance ±3% • Built-i n hysteresis characteristic • 3-pin TO92, 3-pin SOT89, 3-pin SOT23 and 5-pi n SOT23 package Applications • Batte ry checkers • Level selectors • P ower failure detectors • Microcomput er reset • Battery memory backup • Non-volatile RAM signal storage prote ctors HT70xxA-1 TinyPowerTM Voltage De tector General Description The HT70xxA- 1 series devices area set of three term inal low power voltage detectors implem ented in CMOS technology. Each voltage detector in the series detects a partic ular fixed voltage ranging from 2.2V to 8.2V. The voltage detectors consist of a high-precision and low power consump tion standard voltage source as well as a comparator, hysteresis circuit, and an output driver. CMOS technology ensur es low power consumption. Although designed primarily as fixed voltage detectors, these dev.
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