| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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244 pcs
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244 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Reset | |
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The Texas Instruments LM809M3X-4.38/NOPB is a 3-pin voltage supervisor IC, also known as a reset IC, designed to monitor power supply voltages in microprocessor and digital systems. It asserts a reset signal when the VCC supply voltage drops below a factory-programmed threshold, protecting systems during power-up, power-down, and brown-out conditions.
This supervisor monitors a single supply voltage with a typical threshold option of 4.38V. It features an active-low, push-pull reset output and a typical time delay of 240ms. The device operates over a temperature range of -40°C to 105°C.
Packaged in a compact SOT-23-3 surface-mount case, the LM809M3X-4.38/NOPB is suitable for space-constrained applications. Its low supply current of 0.015mA typical makes it an efficient choice for power management.
Key specifications include a reset threshold accuracy of 5% and no watchdog timer. This component is a direct upgrade to MAX809 and MAX810 devices, offering precision monitoring and power supply transient immunity.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.30 | $0.30 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The package is SOT-23-3 (also compatible with TO-236-3 and SC-59).
-40°C to 105°C.
4.38V typical.
Minimum 140ms, typical 240ms.
15µA typical.
Active-low, push-pull.
Surface mount.