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参数资料
| 型号： | MAX4993ELB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/10页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH DPDT 10UDFN |
| 标准包装： | 2,500 |
| 功能： | 开关 |
| 电路： | 1 x DPDT |
| 导通状态电阻： | 500 毫欧 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN |
| 供应商设备封装： | 10-uDFN（2x2） |
| 包装： | 带卷 (TR) |
MAX4991–MAX4994
Analog Signal Levels
The MAX4991–MAX4994 have a very low and stable
RON, 0.3
Ω (typ), as the analog input signals are swept
from ground to VCC (see Typical Operating Character-
istics). These switches are bidirectional, allowing NO_,
NC_, and COM_ to be configured as either inputs or
outputs; however, click-and-pop reduction is only oper-
ational when COM_ is used as the output.
Power-Supply Rejection Ratio
PSRR is the measurement of AC power-supply ripple or
noise that couples to the output. Variations in supply volt-
age corrupt the audio signal due to changes in the RON
value by supply modulation. The MAX4991–MAX4994
maintain a 80dB (typ) PSRR across the supply-voltage
range, eliminating any corruption of the audio signal from
supply variations. Therefore, with no audio signal, the
RON variation due to supply-voltage ripple does not con-
tribute to any output signal modulation.
Applications Information
Click-Pop Reduction
The MAX4991/MAX4993 feature a slow switch turn-on
that can reduce click-and-pop noise caused by abrupt
changes in voltage across a speaker. These voltage
changes usually occur when a single-supply audio
amplifier with a DC bias is turned on, causing a spike of
current in the speaker while the coupling capacitor
charges (see the
Typical Operating Circuit). If the audio
amplifier connected to the unused input is powered up
before the switch position changes, the MAX4991/
MAX4993 reduce the current spike to COM_. The
speaker load must be present so that the current
charging the coupling capacitor has a path to ground.
Layout
Good layout improves performance by decreasing the
amount of stray capacitance and noise. Minimize PCB
trace lengths and resistor leads and place external
components as close as possible to the device.
Power-Supply Sequencing
Caution: Do not exceed the absolute maximum rat-
ings because stresses beyond the listed ratings
may cause permanent damage to the device.
Proper power-supply sequencing is recommended for
all devices. Always apply VCC before applying analog
signals especially if the analog signal is not current
limited.
Low RON, Dual-SPDT/Single-DPDT Analog
Switches with Slow Turn-On Time
8
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相关PDF资料 |
PDF描述 |
|---|---|
| MAX4992ELB+T | IC SWITCH DUAL SPDT 10UDFN |
| MAX4992EVB+ | IC SWITCH DUAL SPDT 10UTQFN |
| MAX4983EEVB+ | IC USB SWITCH DPDT 10UTQFN |
| V300A48C500BL3 | CONVERTER MOD DC/DC 48V 500W |
| V300A48C500BL2 | CONVERTER MOD DC/DC 48V 500W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4993EVB+ | 功能描述:IC SWITCH DPDT 10UTQFN RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:- 电路:2 x SPST 导通状态电阻:20 欧姆 电压电源:单电源 电压 - 电源，单路/双路(±):3 V ~ 5.5 V 电流 - 电源:4.1mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:带卷 (TR) |
| MAX4993EVB+T | 功能描述:交换机 IC 开发工具 Dual-SPDT/Sngl-DPDT Analog Switch RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:USB Power Switches 工具用于评估:MAX4984E 工作电源电压:2.8 V to 5.5 V |
| MAX4993EVKIT+ | 功能描述:交换机 IC 开发工具 MAX4993 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:USB Power Switches 工具用于评估:MAX4984E 工作电源电压:2.8 V to 5.5 V |
| MAX4995AATA+ | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:50MA TO 600MA PROGRAMMABLE CURRENT-LIMIT SWITCHES - Rail/Tube |
| MAX4995AATA+T | 功能描述:电源开关 IC - USB 50mA to 600mA Programmable CLS RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
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