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NCP803SN438T1G The On Semiconductor NCP803SN438T1G is a supervisor IC designed for critical microprocessor power supply monitoring. It features a 4.38V monitoring voltage and an active-low reset output.
Mfr Part #:

NCP803SN438T1G

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor NCP803SN438T1G is a supervisor IC designed for critical microprocessor power supply monitoring. It features a 4.38V monitoring voltage and an active-low reset output.
✓ Total Stock: 15,543 pcs
$ Price Range: $0.75

NCP803SN438T1G Available from 3 distributors

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✓ Non-Authorised
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Smaxon Electronics ✓
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11,000 pcs
On Request
11000 pcs On Request 1 On Request On Request 13+ On Request On Request
Flip Electronics ✓
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3,000 pcs
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3000 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,543 pcs
On Request
1543 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

NCP803SN438T1G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Mounting Type
Number of Voltages Monitored
Operating Temperature
Output
Reset
Reset Timeout
SVHC Present
Supplier Device Package
Type
Voltage
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NCP803SN438T1G Description

Short technical summary and product information.

The NCP803SN438T1G from On Semiconductor is a cost-effective system supervisor circuit designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. It features precision monitoring for 4.38V supplies and an active-low, open-drain reset output. The device is optimized to reject fast transient glitches on the VCC line and has a low supply current, making it suitable for battery-powered applications.

 

This supervisor IC requires no external components and is available in a compact SOT-23-3 (TO-236-3) surface-mount package. It operates over a wide temperature range of -40°C to 105°C. The reset output is guaranteed to VCC = 1.0V, and it offers a minimum reset timeout period of 140ms.

 

Typical applications include computers, embedded systems, battery-powered equipment, and critical microprocessor power supply monitoring. The NCP803SN438T1G is RoHS3 compliant.

NCP803SN438T1G Quick Information

Product Type: Supervisor IC
Canonical Name: NCP803SN438T1G Microprocessor Reset Monitor
Subcategory: Power Management

NCP803SN438T1G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

NCP803SN438T1G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

NCP803SN438T1G Features

  • Monitors a single 4.38V supply.
  • Provides active-low reset output.
  • Features 140ms minimum reset timeout.
  • Available in SOT-23-3 package.
  • Operates from -40°C to 105°C.

NCP803SN438T1G Applications

  • Ideal for microprocessor power monitoring.
  • Suitable for embedded systems.
  • Used in battery-powered equipment.
  • Enhances system reliability in computers.

NCP803SN438T1G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the threshold voltage of the NCP803SN438T1G?

The threshold voltage is 4.38V.

What is the operating temperature range?

The operating temperature range is -40°C to 105°C (junction temperature).

What package is the NCP803SN438T1G available in?

It is available in a surface-mount SOT-23-3 package.

What type of reset output does this supervisor have?

It has an active low, open drain reset output.

What is the reset timeout period?

The minimum reset timeout is 140ms.

What is the typical supply current?

The typical supply current is 0.5µA at VCC=3.2V.

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