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
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[ 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
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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......
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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 |
|
