90mW N通道MOSFET功率开关2A持续电流CXUS7722A CXUS7722B电容器可编程软启动时间开关停用时反向电流闭锁欠压闭锁保护

90mW N通道MOSFET功率开关2A持续电流CXUS7722A CXUS7722B电容器可编程软启动时间开关停用时反向电流闭锁欠压闭锁保护

产品型号：CXUS7722A
产品类型：DC-DC转换器
产品系列： 限流负载开关
产品状态：量产
浏览次数：43 次
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产品简介

CXUS7722A CXUS7722B 是一个具有一些保护功能的配电开关，可以提供高达2A的电流。该设备包括一个90mW N通道MOSFET功率开关，该开关由一个使能逻辑管脚控制，并有一个SS管脚专用于软启动加速率控制，可用于有关涌流的应用。该装置集成了一些保护功能，包括限流保护、短路保护、超温保护和UVLO。电流限制和短路保护可以通过在过载或短路事件期间将输出电流限制在电流限制阈值来防止下游设备发生灾难性故障。当VOUT低于1.5V时，设备将电流限制在一个较低且安全的水平。过温保护功能在结温超过140oC时关闭N沟道MOSFET电源开关，在温度下降20oC时自动打开电源开关。UVLO功能将电源开关保持在关闭状态，直到存在有效的输入电压。该设备有无铅SOT-23-5、TDFN2x2-6和SOP-8封装，支持高电平（EN）和低电平（ENB）版本。

技术参数

输入电压范围 (VIN) V ~ 2.7~5.5V
输出电压 (VOUT)ADJV
输出电流 (IOUT)2A
工作频率400khzHz
转换效率95%%
封装类型SOT25/SOP8/TDFN2x2-6
Current Limit(A) 3.1
Short Current .8
Power Switch On Resistance(milohm) 90
Quiescent Current (typ)(uA) 60
High/Low EN H
Topology限流负载开关
Control methodPWM/PFM
ProtectionAuto-recovery
Operating temp-40℃~125℃
Precision±2.5%
 No. of Channel 1

产品详细介绍

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

The CXUS7722A CXUS7722B is a power-distribution switch with some protection functions that can deliver current up to 2A. The device incorporates a 90mW N-channel MOSFET power switch that is controlled by an enable logic pin and has a SS pin dedicated to soft-start ramp-up rate control that can be used in application where the inrush current is concerned. The device integrates some protection features, including current-limit protection, short-circuit protection, overtemperature protection, and UVLO. The current-limit and short-circuit protection can protect down-stream devices from catastrophic failure by limiting the output current at current-limit threshold during over-load or short-circuit events. When VOUT drops below VIN-1.5V the devices limit the current to a lower and safe level. The over-temperature protection function shuts down the N-channel MOSFET power switch when the junction temperature rises beyond 140oC and will automatically turns on the power switch when the temperature drops by 20oC. The UVLO function keeps the power switch in off state until there is a valid input voltage present. The device is available in lead free SOT-23-5, TDFN2x2- 6 and SOP-8 packages with enable active-high(EN) and active-low(ENB) versions.

   产品特点 返回TOP

· 90mW High Side MOSFET 

· 2A Continuous Current 

· Soft-Start Time Programmable by External Capacitor 

· Wide Supply Voltage Range: 2.7V to 5.5V 

· Current-Limit and Short-Circuit Protections 

· Under-Voltage Lockout Protection 

· Reverse Current Blocking when Switch Disabled 

· Over-Temperature Protection 

· Logic Level Enable Input CXUS7722A: Active High ACXUS7722: Active Low 

· Lead Free and Green Devices Available (RoHS Compliant)

   应用范围 返回TOP

· TFT LCD Modules 

· Notebook and Desktop Computers 

· USB Ports 

· High-Side Power Protection Switches

   技术规格书（产品PDF) 返回TOP 

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！

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产品封装图 返回TOP

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电路原理图 返回TOP

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相关芯片选择指南 返回TOP                   更多同类产品......

Switch > USB Switch

Part_No 

Package

Cha

nnel 

Drive Lout 

Vin(V) 

Current Limit 

Short   Current 

Ron (mohm) 

Iq(No load)

En pin 

High/

Low EN 

OCB 

 Soft  Start 

Vo 

Reverse Current 

(A)

min

max

(uA)

CXUS7720A

SOT23-5/SOP

8/MSOP8

1

2

2.7

5.5

2.5

0.8

75

65

Y

H

Y

Int.

N

N

CXUS7720B

SOT23-5/SOP

8/MSOP8

1

2

2.7

5.5

2.5

0.8

75

65

Y

L

Y

Int.

N

N

CXUS7720C

SOT23-5/SOP

8/MSOP8

1

1

2.7

5.5

1.5

0.8

7.5

65

Y

H

Y

Int.

N

N

CXUS7720D

SOT23-5/SOP

8/MSOP8

1

1

2.7

5.5

1.5

0.8

75

65

Y

L

Y

Int.

N

N

CXUS7721A

SOT23-5/SOP8/MSOP8

1

2

2.7

5.5

2.5

0.8

75

65

Y

H

Y

Int.

N

N

CXUS7721B

SOT23-5/SOP

8/MSOP8

1

2

2.7

5.5

2.5

0.8

75

65

Y

L

Y

Int.

N

N

CXUS7721C

SOT23-5/SOP

8/MSOP8

1

1

2.7

5.5

1.5

0.8

75

65

Y

H

Y

Int.

N

N

CXUS7721D

SOT23-5/SOP

8/MSOP8

1

1

2.7

5.5

1.5

0.8

75

65

Y

L

Y

Int.

N

N

CXUS7722A

SOT23-5/SOP

8/TDFN2x2-6

1

2

2.7

5.5

3.1

0.8

90

60

Y

H

N

Ext.

N

N

CXUS7722B

SOT23-5/SOP

8/MSOP8

1

2

2.7

5.5

3.1

0.8

90

60

Y

L

N

Ext.

N

N

CXUS7723

TDFN2x2-6

1

2

2.7

5.5

2.5

0.8

70

65

Y

H

N

Int.

N

N

CXUS7724A

SOT-23-5

1

2

2.7

5.5

3.1

0.8

90

60

Y

H

N

Int.

N

N

CXUS7724B

SOT-23-5

1

2

2.7

5.5

3.1

0.8

90

60

Y

L

N

Int.

N

N

CXUS7725A

SOP-8

1

0.9

2.9

3.7

1.325

0.6

40

70

Y

H

Y

Int.

N

N

CXUS7725B

SOP-8

1

0.9

2.9

3.7

1.325

0.6

40

70

Y

L

Y

Int.

N

N

CXUS7725C

SOP-8

1

0.9

2.9

3.7

1.4

0.6

40

70

Y

H

Y

Int.

N

N

CXUS7725D

SOP-8

1

0.9

2.9

3.7

1.4

0.6

40

70

Y

L

Y

Int.

N

N

CXUS7726

SOT-23-5

1

0.1

2.7

5.25

0.37

X

250

100

N

X

N

Int.

5.45V

Y

CXUS7726A

SOT-23-5

1

0.1

2.7

5.25

0.37

X

250

100

Y

H

N

Int.

5.45V

Y

CXUS7726B

SOT-23-5

1

0.1

2.7

5.25

0.37

X

250

100

Y

L

N

Int.

5.45V

Y

CXUS7726G

SOT-23-5

1

0.1

2.7

5.25

0.42

X

250

100

N

X

N

Int.

5.45V

Y

CXUS7727A

SOT-23-5

1

2

2.7

5.5

2.5

1.5

62

60

Y

H

Y

Int.

N

N

CXUS7727B

SOT23-5/SOP

8/MSOP8

1

2

2.7

5.5

2.5

1.5

65

60

Y

L

Y

Int.

N

N

CXUS7727C

SOT23-5/SOP

8/MSOP8

1

1

2.7

5.5

1.5

0.8

62

60

Y

H

Y

Int.

N

M

CXUS7727D

SOT23-5/SOP

8/MSOP8

1

1

2.7

5.5

1.6

0.8

62

60

Y

L

Y

Int.

N

N

CXUS7728A

SOT23-5/SOP

8/MSOP8

1

2

2.7

5.5

2.5

1.5

62

60

Y

H

Y

Int.

N

N

CXUS7728B

SOT23-5/SOP

8/MSOP8

1

2

2.7

5.5

2.5

1.5

62

60

Y

L

Y

Int.

N

N

CXUS7728C

SOT23-5/SOP

8/MSOP8

1

1

2.7

5.5

1.5

0.8

62

60

Y

H

Y

Int.

N

N

CXUS7728D

SOT23-5/SOP

8/MSOP8

1

1

2.7

5.5

1.5

0.8

62

60

Y

L

Y

Int.

M

N

CXUS7729A

SOT23-5/MSOP

8/TDFN2x2-8/TDFN3x3-8

2

1.5

2.7

5.5

3.2

1.5

70

90

Y

H

Y

Int.

N

N

CXUS7729B

SOP-8/MSOP

8/TDFN2x2-8/TDFN3x3-8

2

1.5

2.7

5.5

3.2

1.5

70

90

Y

L

Y

Int.

N

N

CXUS7729C

SOP-8/MSOP

8/TDFN2x2-8/TDFN3x3-8

2

1

2.7

5.5

1.7

0.8

70

90

Y

H

Y

Int.

N

N

CXUS7729D

SOP-8/MSOP

8/TDFN2x2-8/TDFN3x3-8

2

1

2.7

5.5

1.7

0.8

70

90

Y

L

Y

Int.

N

N

CXUS7730A

SOT-23-5

1

2

2.7

5.5

3.1

0.8

90

60

Y

H

Y

Int.

N

N

CXUS7730B

SOT-23-5

1

2

2.7

5.5

3.1

0.8

90

60

Y

L

Y

Int.

N

N

CXUS7731

TDFN2x3-14A

2

6

3

5.5

X

X

16

60

Y

H

N

Ext.

N

Y

CXUS7731A

TDFN2x3-14A

2

6

3

5.5

X

X

16

60

Y

H

N

Ext.

N

Y

CXUS7732

TQFN3x3-16

1

2.5

4.5

5.5

Adj.

X

62

180

Y

H

Y

Int.

N

N

CXUS7733

TDFN2x2-8

1

6

3

5.5

X

X

15

50

Y

H

N

Ext.

N

Y

CXUS7733B

TDFN2x2-8

1

6

3

5.5

X

X

15

50

Y

L

N

Ext.

N

Y

CXUS7734QB

TDFN2x3-14A

1

6

3

5.5

12

X

16

60

Y

H

N

Ext.

N

Y

CXUS7735

SOP-8/MSOP

8/TDFN2x2-8

1

2.5

4.5

24

5

0.4

78

250

Y

H

N

Ext.

N

N

CXUS7735A

SOP-8P

TDFN2x2-6

1

Adj.

4.5

24

Adj.

X

78

250

Y

H

N

Ext.

N

N

CXUS7736

WLCSP1.2x1.

2-4

1

3

1.5

5.5

X

X

33

7

Y

H

N

Int.

N

N

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