Datasheet > DIO7553B

DIO7553B

更新时间： 2024-09-26 17:00:59

品牌	Logo	应用领域
帝奥微 - DIOO		/
页数	文件大小	规格书
10页	727K
描述
The DIO7553B is power distribution switches that intended for applications where precision current

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DIO7553B 数据手册

Rev 1.3

DIO7552B/7553B

Precision Adjustable Current-Limited Power Distribution

Switches

Features

Descriptions



70mΩ(typ) High-Side MOSFET

The DIO7552B/7553B is power distribution

switches that intended for applications where

precision current limiting is required or heavy

capacitive loads and short circuits are

encountered and provide up to 2.31A of

continuous load current.

2.31A Maximum Continuous Load Current

±10% Current-Limit Accuracy at 1A typically

Adjustable Current Limit: 400mA–2.57A (typ)

Operating Range: 4.75V to 5.5V

70μA(typ) Quiescent Current

2μs Fast Over current Response Typically

Reverse Input-Output Voltage Protection

Built-in 450Ω(typ) output discharge resistor

6kV HBM ESD Protection

A programmable current-limit threshold is offered

between 400mA and 2.57A (typ) via an external

resistor. Current-limit accuracy is ±10% @1A. The

power-switch rise and fall times are controlled to

minimize current surges during turn on/off. A

constant-current mode is used when the output

load exceeds the current-limit threshold.

2ms(typical) soft start time

Green package: SOT23-6 and DFN2*2-6 is pin

compatible

Application

The DIO7552B/7553B limits the output current to a

safe level by using a constant-current mode when

the output load exceeds the current-limit

threshold. An internal reverse voltage comparator

disables the power switch when the output

voltage is driven higher than the input to protect

devices on the input side.



USB Ports & USB Hubs

Digital TV and

Set-Top Boxes

VOIP Phones

Short-Circuit Protections

Block Diagram

Figure 1 Functional Block Diagram

www.dioo.com

DIO7552B/7553B• Rev. 1.3

12 3 4 5 6 7...10

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