ST2042BD The ST2042BD is an enhanced power switch from STMicroelectronics, designed for applications with heavy capacitive loads and short-circuits. It offers 500mA continuous current per channel with 80mOhm Rds On.
Mfr Part #:

ST2042BD

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The ST2042BD is an enhanced power switch from STMicroelectronics, designed for applications with heavy capacitive loads and short-circuits. It offers 500mA continuous current per channel with 80mOhm Rds On.
✓ Total Stock: 7,640 pcs
$ Price Range: $0.32

ST2042BD Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
7,640 pcs
7640 pcs On Request 1 On Request On Request 622 On Request On Request

ST2042BD Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Fault Protection
Input Type
Interface
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Ratio
Rds On (Typ)
Supplier Device Package
Switch Type
Tape & Reel
Voltage

ST2042BD Description

Short technical summary and product information.

The STMicroelectronics ST2042BD is an enhanced power distribution switch IC designed for applications where heavy capacitive loads and short-circuits are likely. It features an 80 mΩ high-side N-channel MOSFET switch with a continuous current rating of 500 mA per channel.

 

Key features include thermal and short-circuit protection with an overcurrent logic output, an operating voltage range from 2.7 V to 5.5 V, and CMOS- and TTL-compatible enable inputs. The device also incorporates a 10 ms OC_N fault-blanking feature to prevent false assertions during switching.

 

This power switch operates within an ambient temperature range of -40 °C to 85 °C and has a typical rise time of 2.5 ms. It is supplied in an 8-SOIC package suitable for surface mounting.

 

Note: This product is not recommended for new designs.

ST2042BD Quick Information

Product Type: Power Distribution Switch
Canonical Name: ST2042BD Power Distribution Switch
Subcategory: Load Drivers

ST2042BD Compliance

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

ST2042BD Estimated Pricing

Qty Low High
1+ $0.32 $0.32

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

ST2042BD Features

  • High-side N-channel MOSFET switch.
  • 500 mA continuous current per channel.
  • 80 mΩ high-side MOSFET switch.
  • Thermal and short-circuit protection.
  • Operates from 2.7 V to 5.5 V.

ST2042BD Applications

  • General purpose power distribution switching.
  • USB peripheral power control.
  • Load switching in low voltage systems.
  • Power management for portable devices.

ST2042BD FAQs

6 frequently asked questions generated from this part’s specifications.
What is the continuous current rating per channel for the ST2042BD?

The ST2042BD offers 500 mA continuous current per channel.

What is the on-resistance of the ST2042BD power switch?

The typical on-resistance (Rds On) for the ST2042BD is 80 mΩ.

What is the operating voltage range for the ST2042BD?

The ST2042BD operates from a minimum of 2.7 V to a maximum of 5.5 V.

What type of package is the ST2042BD supplied in?

The ST2042BD is supplied in an 8-SOIC package.

What is the operating temperature range for the ST2042BD?

The ST2042BD has an operating temperature range of -40°C to 85°C.

Does the ST2042BD have fault protection features?

Yes, the ST2042BD includes Current Limiting (Fixed), Over Temperature, and UVLO fault protection.

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