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参数资料
| 型号： | IRAUDAMP4 |
| 厂商： | International Rectifier |
| 文件页数： | 9/21页 |
| 文件大小： | 0K |
| 描述： | KIT 2CH 120W HALF BRDG AUDIO AMP |
| 标准包装： | 1 |
| 放大器类型： | D 类 |
| 输出类型： | 2 通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 170W x 2 @ 4 欧姆 |
| 电源电压： | ±25 V ~ 35 V |
| 工作温度： | -40°C ~ 125°C |
| 板类型： | 完全填充 |
| 已用 IC / 零件： | IRF6645，IRS20955 |
| 已供物品： | 板 |
| 相关产品： | IRF6645TRPBFDKR-ND - MOSFET N-CH 100V 5.7A DIRECTFET IRF6645TR1PBFDKR-ND - MOSFET N-CH 100V 5.7A DIRECTFET IRF6645TRPBFCT-ND - MOSFET N-CH 100V 5.7A DIRECTFET IRF6645TR1PBFCT-ND - MOSFET N-CH 100V 5.7A DIRECTFET IRF6645TRPBFTR-ND - MOSFET N-CH 100V 5.7A DIRECTFET IRF6645TR1PBFTR-ND - MOSFET N-CH 100V 5.7A DIRECTFET |
IRS20955(S)PbF
Functional Description
Floating PWM Input
The IRS20955S accepts floating inputs, enabling
easy half-bridge implementation. V DD , CSD and IN
refer to V SS . As a result, the PWM input signal can
directly feed into IN while referencing V SS , which is
typically the midpoint between the positive and
negative DC bus voltages in a half-bridge
configuration.
The IRS20955S also accepts a non-floating input
when V SS is tied to COM.
VDD
Over-Current Protection (OCP)
The IRS20955S features over-current protection to
protect the power MOSFETs during abnormal load
conditions. The IRS20955S engages a sequence of
events when it detects the over-current condition
during high-side or low-side turn on.
As soon as either the high-side or low-side current
sensing block detects over-current:
1. The OC Latch (OCL) flips logic states and
shutdowns the outputs LO and HO.
2. The CSD pin starts discharging the external
capacitor C t .
3. When V CSD , the voltage across C t , falls
below the lower threshold V th2 , an output
signal from COMP2 resets OCL.
IN
CSD
HV
LEVEL
SHIFT
PROTECTION
4. The CSD pin starts charging the external
capacitor C t .
5. When V CSD goes above the upper threshold
V th1 , the logic on COMP1 flips and the IC
Floating Bias
VSS
Floating Input Isolation
resumes operation.
0V – 200V
COM
As long as the over-current condition exists, the IC
will repeat the over-current protection sequence.
IRS20955
Figure 5. Floating PWM Input Structure
Figure 6. Over-Current Protection Timing Chart
www.irf.com
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRAUDAMP4A | 功能描述:放大器 IC 开发工具 120W x 2 Ch Class D IRS20957 IRF6645 BRD RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| IRAUDAMP5 | 功能描述:放大器 IC 开发工具 120W x 2 Ch Class D IRS2092S IRF6645 BRD RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| IRAUDAMP6 | 制造商:International Rectifier 功能描述:AUDIO REFERENCE DESIGN KIT FEATURING IRS20957 - Boxed Product (Development Kits) 制造商:International Rectifier 功能描述:BOARD EVAL FOR IRS20957S |
| IRAUDAMP7D | 功能描述:放大器 IC 开发工具 25W - 500W Scalable IRS2092 2-Ch BRD RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| IRAUDAMP7S | 功能描述:放大器 IC 开发工具 25W - 500W Scalable IRS2092 Half BRG BRD RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
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