Datasheet > MIC4605-1YM-EV

MIC4605-1YM-EV

更新时间： 2024-11-05 22:58:03

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
7页	1124K
描述
EVAL-BOARD MIC4605-1YM

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MIC4605-1YM-EV 数据手册

MIC4605 Evaluation Board

85V Half-Bridge MOSFET Drivers

with Adaptive Dead Time and

Shoot-Through Protection

General Description

Getting Started

The MIC4605 is an 85V half-bridge MOSFET driver that

features adaptive-dead-time and shoot-through protection.

The adaptive-dead-time circuitry actively monitors the half-

bridge outputs to minimize the time between high-side and

low-side MOSFET transitions, thus maximizing power

efficiency. Anti-shoot-through circuitry prevents erroneous

inputs and noise from turning both MOSFETs on at the

same time. Additionally, the MIC4605’s adjustable gate

drive sets the gate drive voltage to VDD for optimal

MOSFET R_DS(ON), which minimizes power loss due to the

1. Connect VIN supply between the VIN and GND

terminals and VDD supply between the VDD and

GND terminals.

Connect a supply between the VIN terminal (J2) and

the GND terminal (J3), paying careful attention to

polarity and supply range (VIN ≤ 85V). Do not apply

power until Step 5.

Connect a supply between the VDD terminal (J1) and

the GND terminal (J3), paying careful attention to

polarity and supply range (5.5V ≤ VDD < 16V). Do not

apply power until Step 5.

MOSFET’s R_DS(ON)

Requirements

2. Connect the TTL-compatible HI and LI inputs (−1),

or the PWM single input (−2).

At a minimum, the evaluation board requires a 5.5V to 16V

power supply to power the VDD terminal (J1) of the

MIC4605 and another supply (up to 85V) may be used to

power the MOSFETs connected to the VIN terminal (J2). A

pulse generator or the output of a PWM control IC may be

connected to the HI and LI terminals (−1), or PWM single

input (−2).

Connect the HI input (JP2) and LI input (JP3) to a

pulse generator or the output of a PWM control IC.

Ensure that they are non-overlapping signals and are

TTL compatible logic-levels. The PWM single input

replaces the HI input (JP2) for the −2 option.

3. Monitor inputs and outputs.

Precautions

Monitor the inputs HI (JP2) and LI (JP3) or PWM (JP2)

and outputs HO (JP1) and LO (JP4) with an

oscilloscope.

There is no reverse input protection on this board. When

connecting the input sources, make sure that the correct

polarity is observed.

4. Connect motor across HS and GND or connect HS

to GND.

Under extreme load conditions and with a high supply

voltage (>48V) connected to the VIN terminal (J2), input

transients can be quite large if long test leads are used. In

such cases a 100µF, 100V electrolytic capacitor is needed

across the VIN terminals to prevent overvoltage damage to

the IC. This can be removed if a clean supply voltage on

VIN is always guaranteed.

The simplest way to observe the MIC4605 operation is

to connect a motor across the HS terminal (J8) and

GND (J9). Alternatively the HS terminal (J8) can be

shorted to GND (J9) with the VIN supply turned OFF.

DC and AC parameters can be easily measured in this

configuration.

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

5. Turn-on supplies and HI/LI inputs.

Turn-on the VDD power supply, followed by the VIN

power supply. Turn on the HI and LI inputs (−1) or

PWM single input (−2).

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

Revision 1.0

November 18, 2013

12 3 4 5 6 7

中文翻译

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与MIC4605-1YM-EV相关器件

型号	品牌	获取价格	描述	数据表
MIC4605-1YMT	MICREL	获取价格	85V Half-Bridge MOSFET Drivers
MIC4605-1YM-T5	MICROCHIP	获取价格	HALF BRDG BASED MOSFET DRIVER
MIC4605-1YMT-EV	MICROCHIP	获取价格	EVAL-BOARD MIC4605-1YMT
MIC4605-1YM-TR	MICROCHIP	获取价格	HALF BRDG BASED MOSFET DRIVER
MIC4605-1YMT-T5	MICROCHIP	获取价格	HALF BRDG BASED MOSFET DRIVER
MIC4605-2YM	MICREL	获取价格	85V Half-Bridge MOSFET Drivers
MIC4605-2YMT	MICREL	获取价格	85V Half-Bridge MOSFET Drivers
MIC4605-2YM-T5	MICROCHIP	获取价格	HALF BRDG BASED MOSFET DRIVER
MIC4605-2YMT-EV	MICROCHIP	获取价格	EVAL-BOARD MIC4605-2YMT
MIC4605-2YM-TR	MICROCHIP	获取价格	HALF BRDG BASED MOSFET DRIVER

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