ST890CD

$1.16

Description：IC PWR SWITCH P-CHANNEL 1:1 8SO
Series：-
Mfr：STMicroelectronics
Package：Tube

SKU:f5ca1495221a Category: Power Distribution Switches, Load Drivers Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC PWR SWITCH P-CHANNEL 1:1 8SO
Series：-
Mfr：STMicroelectronics
Package：Tube
Switch Type：General Purpose
Number of Outputs：1
Ratio - Input:Output：1:01
Output Configuration：High Side
Output Type：P-Channel
Interface：On/Off
Voltage - Load：2.7V ~ 5.5V
Voltage - Supply (Vcc/Vdd)：Not Required
Current - Output (Max)：1.2A
Rds On (Typ)：75mOhm
Input Type：Non-Inverting
Features：-
Fault Protection：Current Limiting (Adjustable), Over Temperature
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Supplier Device Package：8-SOIC
Package / Case：8-SOIC (0.154", 3.90mm Width)
Grade：-
Qualification：-

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ST890CD

Overview

The ST890CD is a low voltage, P-channel MOSFET power switch designed for high-side load switching applications. It operates with input voltages ranging from 2.7 V to 5.5 V, making it suitable for both 3 V and 5 V systems. The device features internal current limiting circuitry that protects the input supply against overload conditions, with a maximum current limit of 1.2 A. This limit is programmable via a resistor connected from the SET pin to ground. Thermal overload protection limits power dissipation and junction temperatures. The ST890CD includes an active-low FAULT indicator output and offers a typical ON resistance of 90 mΩ. It is available in SO-8 and DFN8L (3 x 3 mm) packages.

Feature Summary

Programmable current limit up to 1.2 A using an external resistor
Active-low FAULT indicator output for status monitoring
Thermal shutdown protection to limit junction temperature
Low quiescent current operation

Applications

High-side load switching in 3 V and 5 V systems
Input supply overload protection
Thermal management in compact electronic designs

Procurement Notes

Verify the package type matches your design requirements, as the ST890CD is available in SO-8 and DFN8L configurations. Confirm the programming resistor value for the desired current limit setting. Ensure the input voltage range aligns with your system's 2.7 V to 5.5 V operational window. Check thermal dissipation capabilities under expected load conditions.

Selection Notes

Select the ST890CD when high-side switching with integrated protection is required. Its programmable current limit allows customization for specific load profiles. The active-low fault output facilitates easy integration into diagnostic systems. Consider the SO-8 or DFN8L package based on space constraints and thermal performance needs.

Part Context

The ST890CD belongs to a family of low-voltage power switches designed for efficient load management. It complements other STMicroelectronics components by providing reliable high-side switching with built-in safety features. The device supports various industrial and consumer applications requiring robust power control and protection mechanisms.