L9857-TR - STMicroelectronics

Manufacturer Part Number

L9857-TR

Manufacturer

STMicroelectronics

Introduction

The L9857-TR is a high-side gate driver designed to control N-Channel MOSFETs in power management and gate driving applications, developed by STMicroelectronics. Its purpose is to facilitate the switching of high-power electronics efficiently and with precise control.

Product Features and Performance

High-Side Driver for N-Channel MOSFET

Single channel output

Supply Voltage range from 10V to 18V

Non-Inverting Input Type

Capable of delivering peak output current of 500mA for both sourcing and sinking

High side voltage can withstand up to 300 V (Bootstrap)

Quick Rise and Fall Times: 100ns typically for both

Operates across a wide temperature range: -55°C to 150°C

Product Advantages

Direct control of N-Channel MOSFET allows for efficient power management

High voltage tolerance enhances reliability in high-power applications

Fast switching capabilities reduce power loss and increase efficiency

Wide operating temperature range ensures performance stability under extreme conditions

Key Technical Parameters

Number of Drivers: 1

Voltage Supply: 10V ~ 18V

Current Peak Output (Source, Sink): 500mA

High Side Voltage Max (Bootstrap): 300 V

Rise / Fall Time (Typ): 100ns

Operating Temperature: -55°C ~ 150°C (TJ)

Quality and Safety Features

Built to handle high-bootstrap voltages securely, providing reliable operation in high-side driving applications

Robust against temperature fluctuations ensuring safety and performance over a wide range of operating conditions

Compatibility

Primarily designed for controlling N-Channel MOSFETs in various circuit designs

Application Areas

Power Management systems

Gate Driving for MOSFETs in automotive, industrial, and consumer electronics

Motor Control circuits

High-frequency switching power supplies

Product Lifecycle

Status: Active

The product is currently actively supported by STMicroelectronics, with no indication of nearing discontinuation. Availability of replacements or upgrades can be expected as part of STMicroelectronics ongoing product development.

Several Key Reasons to Choose This Product

Reliable high-side driver capability for efficient control of N-Channel MOSFETs

High bootstrap voltage and peak output current handling allow for versatile high-power applications

Fast switching capability reduces energy loss and improves overall efficiency

Suitable for a wide range of applications from automotive to industrial power systems

Robust design ensures performance stability and reliability across a broad temperature range

Backed by STMicroelectronics' support and product longevity, making it a future-proof choice for designers