在CXAS42278中，当开关断开时，为快速输出放电（QOD）添加250Ω片上负载电阻器。装置的上升时间由内部控制，以避免涌入电流，并可使用CTx引脚上的陶瓷电容器进行调整。CXAS42278有14针TDFN封装。CXAS42278是为高压侧负载开关应用而设计的双N沟道MOSFET电源开关，设备的典型RDS（ON）为16mΩ，输出电流限制为6A。每个开关都由开/关输入（EN1，EN2）独立控制，它能够直接与低压GPIO控制信号接口。
集成双通道负载开关
·输入电压范围：0.8V至5.5V
双超低导通电阻（16mΩ）
每个通道的6A连续开关电流
低阈值控制输入
可调回转率控制
快速输出放电晶体管
-
[ CXAS42278 ]
目录
7.相关产品
产品概述 返回TOP
In the CXAS42278, a 250Ω on-chip load resistor is added for quick output discharge (QOD) when the switch is turned off. The rise time of the device is internally controlled in order to avoid in-rush current and can be adjusted using a ceramic capacitor on the CTx pins. The CXAS42278 is available in 14 pin TDFN package.The CXAS42278 is dual N-channel MOSFET power switch designed for high-side load-switching applications, and the device has a typical RDS(ON) of 16mΩ and the output current is limited to 6A. Each switch is independently controlled by an on/off input (EN1, EN2), which is capable of interfacing directly with low-voltage GPIO control signals.
产品特点 返回TOP
„ Integrated Dual Channel Load Switch
„ Input Voltage Range: 0.8V to 5.5V
„ Dual Ultra-low ON-Resistance (16mΩ)
„ 6A Continuous Switch Current per channel
„ Low Threshold Control Inputs
„ Adjustable Slew-rate Control
„ Quick Output Discharge Transistor
„ 14 Pin TDFN Package with Thermal Pad
应用范围 返回TOP
„ Notebooks / Netbooks
„ Tablet PCs
„ Consumer Electronics
„ Set-Top-Boxes
„ Industrial Systems
„ Telecom Systems
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！
产品封装图 返回TOP
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
|
Dual Power Switch |
|||||||||
|
Part NO. |
Vin(V) min. |
Vin(V) max. |
RON (Ohm) |
VOUT rising (μs) |
Ilimit (A) |
OC Flag |
Discharge (Ohm) |
Note |
Package |
|
0.8 |
5.5 |
10 |
ADJ |
6 |
N |
220 |
3V ~ 5V Vbias Needs |
AQFN2X2-10 |
|
|
0.8 |
5.5 |
16 |
ADJ |
6 |
N |
220 |
3V ~ 5V Vbias Needs |
TDFN2X3-14 |
|
|
2 |
5.5 |
87 |
400 |
2 |
Y |
200 |
UL,CB,A/B/C/D/ ILimit=2A/1.5A/1A/0.75A |
SOP-8 |
|
|
2.7 |
5.5 |
100 |
400 |
1 |
Y |
N |
UL, CB |
SOP-8 |
|
|
2.7 |
5.5 |
74 |
1000 |
2 |
Y |
N |
SS |
TDFN2X2-8 |
|
|
2.7 |
5.5 |
72 |
400 |
2 |
Y |
N |
UL,CB,EOUT1/2 ILimit=2A/1A, A/B/C/D/ ILimit=2A/1.5A/1A/0.75A |
TDFN3X3-10 |
|
|
2.7 |
5.5 |
118 |
400 |
0.45 |
Y |
N |
N/A |
SOP-8 |
|
|
2.7 |
5.5 |
118 |
400 |
2 |
Y |
N |
N/A |
SOP-8 |
|
|
2.3 |
5.5 |
200 |
-- |
0.27 |
Y |
N |
A/B/C/D ILimit=0.27A/0.17A/0.25A/0.15A |
TSOT-23-5 |
|
◀ 上一篇:CXAS42277集成双通道负载开关输入电压范围0.8-V至5.5V双超低导通电阻10mΩ每个通道的6A连续开关电流低阈值控制输入可调回转率控制快速输出放电晶体管输入直接与低压GPIO控制信号接口
下一篇▶:CXAS42279集成的双通道87mΩ电源开关用于自供电和总线供电的通用串行总线（USB）应用逻辑电平启用引脚用于高电平或低电平内置电荷泵用于驱动二极管的N沟道MOSFET以消除开关断电时的反向电流
