DIO7553BST6 datasheet(1/10 Pages) DIOO

tên linh kiện	DIO7553BST6

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Rev 1.3

www.dioo.com

DIO7552B/7553B• Rev. 1.3

DIO7552B/7553B

Precision Adjustable Current-Limited Power Distribution

Switches

Features



70mΩ(typ) High-Side MOSFET



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



2ms(typical) soft start time



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

compatible

Application



USB Ports & USB Hubs



Digital TV and



Set-Top Boxes



VOIP Phones



Short-Circuit Protections

Descriptions

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.

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.

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.

Block Diagram

Figure 1 Functional Block Diagram

Số phần tương tự - DIO7553BST6

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