CXSD6274C 固定的300kHz开关频率电压模式和同步PWM控制器来驱动双N通道mosfet

CXSD6274C 固定的300kHz开关频率电压模式和同步PWM控制器来驱动双N通道mosfet

产品型号：CXSD6274C
产品类型：DC-DC转换器
产品系列： Buck降压型芯片
产品状态：量产
浏览次数：47 次
加入收藏

产品简介

CXSD6274C一个内置的数字软启动与固定的软启动间隔防止输出电压超调，以及限制输入电流。CXSD6274 CXSD6274C具有优良的保护功能：POR、OCP和UVP。上电复位（POR）电路可以在控制器运行时监测VCC电源电压超过其阈值电压，内置的数字软启动提供控制电压上升的输出。过电流保护（OCP）通过使用较低MOSFET的RDS（ON）上的电压降来监测输出电流，与内部VOCP（0.29V）相比，当输出电流达到触发点时，控制器将运行软启动功能，直到故障事件消除。欠压保护（UVP）监视FB引脚电压进行短路保护，当VFB小于VREF（0.4V）的50%时，控制器直接关闭IC

技术参数

输入电压范围 (VIN)≤ 2.9~13.2V
输出电压 (VOUT)ADJV
输出电流 (IOUT)20A
工作频率1500 Hz
转换效率95%%
封装类型SOP-8
TopologyBuck VM降压型芯片
Control method No. of PWM Outputs:1
Switching frequency1500
ProtectionPhase: 1
Features静态工作电流 Quiescent Current (typ)(uA):5000
Application Bias Voltage (typ) (V):12
Operating temp-40℃~125℃
Reference design反馈电压Reference Voltage(V):0.8

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 CXSD6274  CXSD6274C uses fixed 300kHz switching frequency, voltage mode, and synchronous PWM controller which drives dual N-channel MOSFETs. The device integrates the control, monitoring and protection functions into a single package, provides one controlled power output with under-voltage and over-current protections. The CXSD6274  CXSD6274C provides excellent regulation for output load variation. The internal 0.8V temperature-compensated reference voltage is designed to meet the requirement of low output voltage applications. An built-in digital softstart with fixed soft-start interval prevents the output voltage from overshoot as well as limiting the input current. The CXSD6274  CXSD6274C with excellent protection functions: POR, OCP and UVP. The Power-On-Reset (POR) circuit can monitor VCC supply voltage exceeds its threshold voltage while the controller is running, and a built-in digital soft-start provides output with controlled voltage rise. The Over-Current Protection (OCP) monitors the output current by using the voltage drop across the lower MOSFET’s RDS(ON), comparing with internal VOCP (0.29V), when the output current reaches the trip point, the controller will run the soft-start function until the fault events are removed. The Under-Voltage Protection (UVP) monitors the voltage of FB pin for short-circuit protection, when the VFB is less than 50% of VREF (0.4V), the controller will shutdown the IC directly

   产品特点 返回TOP

· Single 12V Power Supply Required 

· Fast Transient Response - 0~90% Duty Ratio 

· 0.8V Reference with 1% Accuracy 

· Shutdown Function by Controlling COMP Pin Voltage 

· Internal Soft-Start (3.4ms) Function 

· Voltage Mode PWM Control Design 

· Under-Voltage Protection 

· Over-Current Protection - Sense Low Side MOSFET’s RDS(ON) 

· 300kHz Fixed Switching Frequency 

· SOP-8 Package 

· Lead Free and Green Devices Available (RoHS Compliant)

   应用范围 返回TOP

· Graphics Card 

· Mother Board

   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！

 QQ截图20160419174301.jpg

产品封装图 返回TOP

blob.png
blob.png

电路原理图 返回TOP

 

 

blob.png
blob.png

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

 

Switching Regulator >   Buck Controller

Part_No 

Package 

Topology 

Archi

tectu

Phase

No.of

PWM

Output

Output 

Current

(A) 

Input

Voltage (V) 

Reference

Voltage

(V) 

Bias 

Voltage

(V) 

Quiescent

Current

(uA) 

min

max

CXSD6273

SOP-14|QSOP-16

QFN4x4-16

Buck

VM    

1   

1     

30

2.9    

13.2

0.9

12     

8000

CXSD6274

SOP-8

Buck

VM   

1

1

20

2.9  

13.2 

0.8

12

5000

CXSD6274C

SOP-8

Buck

VM

1

1

20

2.9

13.2

0.8

12

5000

CXSD6275

QFN4x4-24

Multiphase

VM

2

1

60

3.1

13.2

0.6

12

5000

CXSD6276

SOP-8

Buck

VM

1

1

20

2.2

13.2

0.8

5~12

2100

CXSD6276A

SOP-8

Buck

VM

1

1

20

2.2

13.2

0.8

5~12

2100

CXSD6277/A/B

SOP8|TSSOP8

Buck

VM

1

1

5

5

13.2

1.25|0.8

5~12

3000

CXSD6278

SOP-8

Buck

VM

1

1

10

3.3

5.5

0.8

5

2100

CXSD6279B

SOP-14

Buck

VM   

1

1

10

5

13.2

0.8

12

2000

CXSD6280

TSSOP-24

|QFN5x5-32

Buck

VM

1

2

20

5

13.2

0.6

5~12

4000

CXSD6281N

SOP14|QSOP16

|QFN-16

Buck

VM

1

1

30

2.9

13.2

0.9

12

4000

CXSD6282

SOP-14

Buck

VM

1

1

30

2.2

13.2

0.6

12

5000

CXSD6282A

SOP-14

Buck

VM

1

1

30

2.2

13.2

0.6

12

5000

CXSD6283

SOP-14

Buck

VM

1

1

25

2.2

13.2

0.8

12

5000

CXSD6284/A

LQFP7x7 48

|TQFN7x7-48

Buck|Boost

|Flyback

VM

1

6

0.015

1.4

6.5

-

5

1800

CXSD6285

TSSOP-24P

Buck

VM

1

2

20

2.97

5.5

0.8

5~12

5000

CXSD6286

SOP-14

Buck

VM

1

1

10

5

13.2

0.8

12

3000

CXSD6287

SOP-8-P|DIP-8

Buck

VM

1

1

30

2.9

13.2

1.2

12

3000

CXSD6288

SSOP28

QFN4x4-24

Buck

VM

1

2

20

5

24

0.9

5

1200

CXSD6289

SOP-20

Buck

VM

1

2

20

2.2

13.2

0.6

5~12

4000

CXSD6290

SOP8|DFN3x3-10

  

VM

1

2

-

-

-

-

5~12

550

CXSD6291HC

DIP8|SOP-8

Buck|Boost

|Flyback

|Forward

VM

1

1

1

1.2

9

24

5

9 ~ 24

CXSD6292

SSOP16|QFN4x4-16

|TQFN3x3-16

Buck

VM

1

1

25

3

25

0.6

5

1700

CXSD6293

TDFN3x3-10

Buck

COT

1

1

25

3

25

0.5

5

350

CXSD6294

QFN4x4-24

Buck

CM

2

1

40

4.5

13.2

0.6

5~12

4000

CXSD6295

SOP8P|TDFN3x3-10

Buck

VM

1

1

20

3

13.2

0.8

5~12

2500

CXSD6296A|B|C|D

SOP8P

Buck

VM

1

1

25

3

13.2

0.6|0.8

5~12

1200

CXSD6297

TDFN3x3-10

Buck

VM

1

1

25

4

13.2

0.8

5~12

2000

CXSD6298

TDFN3x3-10

Buck

COT

1

1

25

4.5

25

0.6

5~12

80

CXSD6299|A

SOP-8P

Buck

VM

1

1

25

4.5

13.2

0.8

5~12

16000

CXSD62100

TQFN3x3-10

Buck

VM

1

1

25

4.5

13.2

0.6

5~12

2500

CXSD62101|L

TDFN3x3-10

Buck

COT

1

1

30

3

25

0.8

5~12

2000

CXSD62102

TQFN3x3-16

Buck

COT

1

1

30

1.8

28

0.6

5

600

CXSD62102A

TQFN 3x3 16

Buck

COT

1

1

30

1.8

28

0.6

5

600

CXSD62103

QFN4x4-24

Buck

VM

2

1

50

4.5

13.2

0.6

5~12

5000

CXSD62104

TQFN4x4-24

Buck

COT

1

2

15

6

25

2

N

550

CXSD62105

TQFN4x4-24

Buck

COT

1

2

15

6

25

2

N

550

CXSD62106|A

TQFN4x4-4

TQFN3x3-20

Buck

COT

1

2

20

3

28

0.75

5

800

CXSD62107

TQFN3x3-16

Buck

COT

1

1

20

1.8

28

0.75

5

400

CXSD62108

QFN3.5x3.5-14

|TQFN3x3-16

Buck

COT

1

1

20

1.8

28

0.75

5

400

CXSD62109

TQFN3x3-16

Buck

COT

1

2

20

1.8

28

0.75

5

400

CXSD62110

QFN3x3-20

TQFN3x3-16

Buck

COT

1

2

20

3

28

1.8|1.5|0.5

5

740

CXSD62111

TQFN4x4-24

|QFN3x3-20

Buck

CM

1

2

15

5

28

0.5

N

3000

CXSD62112

TDFN3x3-10

Buck

COT

1

1

20

1.8

28

0.5

5

250

CXSD62113|C

TQFN3x3-20

Buck

COT

1

2

15

6

25

2

N

550

CXSD62113E

TQFN 3x3 20

Buck

COT

2

2

11

6

25

2

N

550

CXSD62114

TQFN3x3-20

Buck

COT

2

2

11

5.5

25

2

N

280

CXSD62115

QFN4x4-24

Multiphase

VM

2

1

60

3.1

13.2

0.85

12

5000

CXSD62116A|B|C

SOP-8P

Buck

VM

1

1

20

2.9

13.2

0.8

12

16000

CXSD62117

SOP-20

Buck

VM

2

2

30

10

13.2

1

12

5000

CXSD62118

TDFN3x3-10

Buck

COT

1

1

25

1.8

28

0.7

5

250

CXSD62119

TQFN3x3-20

Buck

COT

2

1

40

1.8

25

REFIN Setting

5

700

CXSD62120

QFN 3x3 20

TQFN 3x3 16

Buck

COT

1

2

20

3

28

1.8|1.5 1.35|1.2 0.5

5

800

CXSD62121A

TQFN3x3 20

Buck

COT

1

2

15

3

28

0.75

5

220

CXSD62121B

TQFN3x3 20

Buck

COT

1

2

15

3

28

0.75

5

220

CXSD62121

TQFN3x3-20

Buck

COT

1

2

20

3

28

0.75

5

180

用户评论

共有条评论
用户名: 密码:
验证码: 匿名发表