Features
• Low power consumption • Low temperature coefficient • High input voltage range (up to 30V) • Quiescent cu...
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 (...