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LM3724IM5X-3.08 NOPB
Low Power Reset IC / Voltage Supervisor with manual reset 5-SOT-23 -40 to 125
VCC
LM3724SWITCH
VCC
RESET
VCC
GND
VCC
LM3722, LM3723, LM3724
www.ti.com SNVS154E –MAY 2001–REVISED MARCH 2013
LM3722/LM3723/LM3724 5-Pin Microprocessor Reset Circuits
Checkfor Samples: LM3722, LM3723, LM3724
1FEATURES DESCRIPTIONThe LM3722/LM3723/LM3724 microprocessor
Precise Monitoringof 2.5V, 3.3V, and 5V supervisory circuits monitor the power suppliesin
Supply Voltages microprocessor and digital systems. They providea
• Fully Specified Over Temperature resetto the microprocessor during power-up, power-
Industrial: −40°Cto +85°C down, brown-out conditions, and manual reset.
Extended: −40°Cto +125°C The LM3722/LM3723/LM3724 assertsa reset signal
whenever the supply decreases below the factory-
• 100 ms Minimum Power-On Reset pulse Width,programmed reset threshold. Reset will be asserted
190 ms Typical: forat least 100ms even after VCC rises above the
– Active-Low RESET Output (LM3722) reset threshold.
– Active-High RESET Output (LM3723) The LM3722 has an active-low
– Active-Low RESET Open Drain Output output. The LM3723 hasan active-high
(LM3724) pull output. The LM3724 hasan active-low
Guaranteed RESET Output Valid for VCC≥ 1V RESET output.
Low Supply Current,6µA Typical Three standard reset voltage options
Power Supply Transient Immunity suitable for monitoring 5V, 3.3V,
voltages. Additional reset voltages
• Compatible with MAX811/812 Applications contact Texas Instruments for details.
APPLICATIONS With a low supply current
LM3722/LM3723/LM3724 are ideal
• Microprocessor Systems equipment. The LM3722/LM3723/LM3724
• Computers availablein the 5-pin SOT-23 package.
Controllers Intelligent Instruments Portable/Battery-Powered Equipment
Typical Application Circuits Circuit Figure2. Typical Application Circuit
Connection
