LM3722, LM3723, LM3724
www.ti.com SNVS154E – MAY 2001 – REVISED MARCH 2013 LM3722/LM3723/LM3724 5-Pin Microprocessor Reset Circuits
Check for Samples: LM3722, LM3723, LM3724 FEATURES DESCRIPTION • The
LM3722/LM3723/LM3724
microprocessor
supervisory circuits monitor the power supplies in
microprocessor and digital systems. They provide a
reset to the microprocessor during power-up, powerdown, brown-out conditions, and manual reset. 1 2 • • •
•
•
• Precise Monitoring of 2.5V, 3.3V, and 5V
Supply Voltages
Fully Specified Over Temperature
– Industrial: −40°C to +85°C
– Extended: −40°C to +125°C
100 ms Minimum Power-On Reset pulse Width,
190 ms Typical:
– Active-Low RESET Output (LM3722)
– Active-High RESET Output (LM3723)
– Active-Low RESET Open Drain Output
(LM3724)
Guaranteed RESET Output Valid for VCC ≥ 1V
Low Supply Current, 6µA Typical …
