HT70XXA-2 Datasheet, PDF (1/17 Pages) Holtek Semiconductor Inc – TinyPowerTM Voltage Detector

HT70xxA-2
TinyPower^TM Voltage Detector
Features
· Low power consumption
· Low temperature coefficient
· High input voltage range (up to 24V)
· 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
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%
Package
TO92
SOT89
SOT23-5
Marking
70xxA-2 (for TO92)
70xxA-2# (for SOT89)
70xxA-2+ (for SOT89)
xxA2# (for SOT23-5)
xxA2+ (for SOT23-5)
Note: ²xx² stands for output voltages.
Both lead free and green compound devices are available. Note the symbol marks below:
²#² stands for lead free devices.
²+² stands for green compound devices, which are Lead-free and Halogen-free.
For the TO92 package, the symbol mark will be at the end of the date code. Whereas for the SOT89 and
SOT23-5, the symbol mask will be located at the end of IC marking.
Rev. 1.20
1
December 14, 2012