Datasheet > MIC5021_05

MIC5021_05

更新时间： 2024-11-23 04:39:51

品牌	Logo	应用领域
麦瑞 - MICREL		驱动器
页数	文件大小	规格书
10页	207K
描述
High-Speed High-Side MOSFET Driver

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MIC5021_05 数据手册

MIC5021

Micrel, Inc.

MIC5021

High-Speed High-Side MOSFET Driver

General Description

Features

The MIC5021 high-side MOSFET driver is designed to oper-

ate at frequencies up to 100kHz (5kHz PWM for 2% to 100%

duty cycle) and is an ideal choice for high speed applications

such as motor control, SMPS (switch mode power supplies),

andapplicationsusingIGBTs.TheMIC5021canalsooperate

as a circuit breaker with or without automatic retry.

• 12V to 36V operation

• 550ns rise/fall time driving 2000pF

• TTL compatible input with internal pull-down resistor

• Overcurrent limit

• Gate to source protection

• Internal charge pump

• 100kHz operation guaranteed over full temperature and

operating voltage range

• Compatible with current sensing MOSFETs

• Current source drive reduces EMI

Arising or falling edge on the input results in a current source

pulse or sink pulse on the gate output. This output current

pulsecanturnona2000pFMOSFETinapproximately550ns.

The MIC5021 then supplies a limited current (< 2mA), if

necessary, to maintain the output state.

Applications

• Lamp control

• Heater control

• Motor control

• Solenoid switching

• Switch-mode power supplies

• Circuit breaker

Anovercurrentcomparatorwithatripvoltageof50mVmakes

theMIC5021idealforusewithacurrentsensingMOSFET.An

external low value resistor may be used instead of a sensing

MOSFET for more precise overcurrent control. An optional

external capacitor placed from the C pin to ground may be

used to control the current shutdown duty cycle (dead time)

from 20% to < 1%. A duty cycle from 20% to about 75% is

possible with an optional pull-up resistor from C to V

Ordering Information

The MIC5021 is available in 8-pin SOIC and plastic DIP

packages.

Part Number

Temperature

Range

Package

Standard Pb-Free

Other members of the MIC502x family include the MIC5020

low-side driver and the MIC5022 half-bridge driver with a

cross-conduction interlock.

MIC5021BM MIC5021YM –40ºC to +85ºC 8-pin SOIC

MIC5021BN MIC5021YN –40ºC to +85ºC 8-pin Plastic DIP

Typical Application

+12V to +36V

MIC5021

10µF

TTL Input

optional*

BOOST

Gate

N-Channel

Power MOSFET

Input

Sense-

Sense+

2.7

Gnd

R_SENSE

50mV

I_TRIP

R_SENSE

Load

* increases time before retry

High-Side Driver with Overcurrent Trip and Retry

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

July 2005

MIC5021

12 3 4 5 6 7...10

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与MIC5021_05相关器件

型号	品牌	获取价格	描述	数据表
MIC5021AJ	MICROCHIP	获取价格	Buffer/Inverter Based MOSFET Driver, BIMOS, CDIP8, CERDIP-8
MIC5021AJB	MICREL	获取价格	Buffer/Inverter Based MOSFET Driver, BIMOS, CDIP8, CERDIP-8
MIC5021AJBQ	MICREL	获取价格	Buffer/Inverter Based MOSFET Driver, CDIP8, CERDIP-8
MIC5021BM	MICREL	获取价格	High-Speed High-Side MOSFET Driver
MIC5021BMT&R	MICROCHIP	获取价格	Buffer/Inverter Based MOSFET Driver, BIMOS, PDSO8, SOIC-8
MIC5021BN	MICREL	获取价格	High-Speed High-Side MOSFET Driver
MIC5021YM	MICROCHIP	获取价格	BUF OR INV BASED MOSFET DRIVER, PDSO8
MIC5021YMTR	MICROCHIP	获取价格	BUF OR INV BASED MOSFET DRIVER, PDSO8, LEAD FREE, SOIC-8
MIC5021YM-TR	MICROCHIP	获取价格	BUF OR INV BASED MOSFET DRIVER, PDSO8
MIC5021YN	MICROCHIP	获取价格	BUF OR INV BASED MOSFET DRIVER, PDIP8

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