A3941klptr-T Power Led Driver Ic controllers Drivers Automotive Tssop-28

Description

Allegro MicroSystems,A3941KLPTR-T,TSSOP-28, Motor / Motion / Ignition Controllers & Drivers

AUTOMOTIVE FULL BRIDGE MOSFET

The A3941 is a full-bridge controller for use with external N-channel power MOSFETs and is

specifically designed for automotive applications with high-power inductive loads, such as brush DC

motors.

A unique charge pump regulator provides full (>10 V) gate drive for battery voltages down to 7 V and

allows the A3941 to operate with a reduced gate drive, down to 5.5 V.

A bootstrap capacitor is used to provide the above-battery supply voltage required for N-channel

MOSFETs. An internal charge pump for the high-side drive allows DC (100% duty cycle) operation.

The full bridge can be driven in fast or slow decay modes using diode or synchronous rectification.

In the slow decay mode, current recirculation can be through the high-side or the lowside FETs.

The power FETs are protected from shoot-through by resistor adjustable dead time.

Integrated diagnostics provide indication of undervoltage, overtemperature, and power bridge faults,

and can be configured to protect the power MOSFETs under most short circuit conditions.

The A3941 is supplied in a 28-pin TSSOP power package with an exposed thermal pad (suffix LP).

This package is lead (Pb) free, with 100% matte-tin leadframe plating.

Features

▪ High current gate drive for N-channel MOSFET full bridge

▪ High-side or low-side PWM switching

▪ Charge pump for low supply voltage operation

▪ Top-off charge pump for 100% PWM

▪ Cross-conduction protection with adjustable dead time

▪ 5.5 to 50 V supply voltage range

▪ Integrated 5 V regulator

▪ Diagnostics output

▪ Low current sleep mode

Applications

Automotive Full Bridge MOSFET Driver

Date Sheet

FAQ

Shipping:

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safe and strong. Please nitfy me you have any special needs
2, It will take around 3-5 days to reach your hands.

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be, promptly updated.So please consult the stock situation when you inquire.

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sales person will be responsible to send the AWB for the delivered goods in the next workday.

you can check the AWB in the website which we send to you. For the AWByou also can call to the

local branch of the express company in your company.

Pre-sales service :

1. Our team design and make solutions based on different requirements from different customers.

2. We provide 24-hours service,and every message you quote inquiry will be replied within12 hours

Shenzhen Retechip® Electronic Technology Co., Ltd. was established in 2013, specializing in electronic components distribution business.The products are widely used in communication equipment, power supply, medical electronics, automotive electronics, digital electronics, industrial electronics, display modules, intelligent electronics, new energy, the Internet of things, 5G productsand other fields，With high-quality products, reasonable prices, rapid distributionand timely service, we can provide customers with the most cost-effective products and save customers a lot of time.