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IRF7821UTRPBF

更新时间： 2024-11-20 13:08:47

品牌	Logo	应用领域
英飞凌 - INFINEON		晶体晶体管功率场效应晶体管开关脉冲光电二极管
页数	文件大小	规格书
15页	1783K
描述
Power Field-Effect Transistor, 13.6A I(D), 30V, 0.0091ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, MS-012AA, LEAD FREE, SOP-8

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IRF7821UTRPBF 数据手册

IRDC3146EVAL

IRU3146 EVALUATION BOARD USER GUIDE

INTRODUCTION

SPECIFICATION DATA

This reference board is designed to demonstrate all

the features of IRU3146 and can be configured to two

types of applications:

The IRU3146 IC is a Dual synchronous Buck controller,

providing a cost-effective, high performance and flexible

solution. The IRU3146 can be configured as a 2-inde-

pendent or as a 2-phase controller. The 2-phase configu-

ration is ideal for high current applications. The IRU3146

features 1808 out of phase operation which reduces the

required input/output capacitance and results in a fewer

number of capacitors needed. Other key features offered

by this device include two independent programmable

soft starts, programmable switching frequency up to

400KHz per phase, Hiccup current limit and an under

voltage lockout function. The current limit is provided by

sensing the lower MOSFET's on-resistance for optimum

cost and performance.

1) Dual outputs application (Independent Outputs)

2) 2-phase application (Single Output)

This user guide contains the schematic and bill of

materials for each of these applications, and the

design guidelines are described in data sheet.

The MOSFETs sockets on the evaluation board are

dual layout for SOIC-8 and Direct FET footprint.

INPUT/OUTPUT CONNECTIONS

The following is the input/output connections:

The connection points for dual output application are

shown in Figure 1. Connect the power supply cables

according to this figure, minimizing wire lengths to re-

duce losses in the wire. Test points J1, J2, J3 and J4

provide easy connection for oscilloscope voltage probe

to monitor the inductor points for each PWM section

and output voltages.

Inputs:

JP1: Vin and Gnd

JU4: VCC and Gnd

JU5: VCL/VCH1/VCH2

Outputs:

Dual Outputs

2-Phase

JP2: Vout1 for Dual output

JP5: Vout2 for Dual output

JP4: Vout for 2-phase application

VIN = 12V

VOUT1 = 2.5V

VOUT1 = 1.8V

IOUT1 = 10A

IOUT1 = 35A

VOUT2 = 1.8V

∆VOUT = 50mV

Scope Probe connections:

J1 and J3: Inductor point for L2 and L3

J2 and J4: Outputs for Vout1 and Vout2

IOUT1 = 10A

FS = 300KHz

∆VOUT = 50mV

FS = 300KHz

Rev.1.0

7/28/04

www.irf.com

12 3 4 5 6 7...15

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