5 Pin Microprocessor Reset Circuits Integrated LM3722IM5-4.63
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Model Number:LM3722IM5-4.63
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LM3722IM5-4.63 - NATIONAL SEMICONDUCTOR - 5-PIN MICROPROCESSOR RESET CIRCUITS
Detailed Product Description
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Quick Detail:
5-Pin Microprocessor Reset Circuits
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,
power-down, brown-out conditions, and manual reset.
The LM3722/LM3723/LM3724 asserts a reset signal whenever the supply
decreases below the factory-programmed reset threshold for at least
100 ms. The reset signal remains asserted for 190 ms after VCC
rises above the threshold.
The LM3722 has an active-low RESET push-pull output. The LM3723 has
an active-high RESET push-pull output. The LM3724 has an active-low
open-drain RESET output. Three standard reset voltage options are
available, suitable for monitoring 5V, 3.3V, and 2.5V supply
voltages. Additional reset voltages are also available; contact
National Semiconductor for details.
With a low supply current of only 6µA, the LM3722/LM3723/LM3724 are
ideal for use in portable equipment. The LM3722/LM3723/LM3724 are
available in the 5-pin SOT23 package.
Applications:
n Precise monitoring of 2.5V, 3.3V, and 5V supply voltages
n Fully specified over temperature Industrial: −40˚C to +85˚C
Extended: −40˚C to +125˚C
n 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)
n Guaranteed RESET Output valid for VCC ≥ 1V
n Low Supply Current, 6µA typical
n Power supply transient immunity
n Compatible with MAX811/812 applications
Specifications:
| Datasheets | LM3722/23/24 |
| Product Photos | SOT-23-5, SC-74A, MF05A |
| Standard Package | 1 |
| Category | Integrated Circuits (ICs) |
| Family | PMIC - Supervisors |
| Series | - |
| Packaging | Digi-Reel® |
| Type | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 |
| Output | Push-Pull, Totem Pole |
| Reset | Active Low |
| Reset Timeout | 100 ms Minimum |
| Voltage - Threshold | 4.63V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| Other Names | LM3722IM5-4.63/NOPBDKR LM3722IM5-4.63DKR LM3722IM5-4.63DKR-ND LM3722IM5463NOPB |
5 Pin Microprocessor Reset Circuits Integrated LM3722IM5-4.63
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