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參數(shù)資料
| 型號： | IRAUDAMP5 |
| 廠商： | International Rectifier |
| 英文描述： | 120W x 2 Channel Class D Audio Power Amplifier Using the IRS2092S and IRF6645 |
| 中文描述： | 120瓦× 2通道D類音頻功率放大器使用IRS2092S和IRF6645 |
| 文件頁數(shù)： | 11/49頁 |
| 文件大?。?/td> | 1416K |
| 代理商： | IRAUDAMP5 |
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frequencies of 400 kHz and greater; lower switching frequencies may require additional filter
components.
+VCC is referenced to –B and provides the supply voltage to the LO gate driver. D6 and C5 form
a bootstrap supply that provides a floating voltage to the HO gate driver. The VAA and VSS
input supplies are derived from +B and -B via R52 and C18, and R50 and C12, respectively.
Thus, a fully functional Class D PWM amplifier plus driver circuit is realized in an SO16
package with just a few small components.
.
+
-
.
.
.
R13
IN-
COMP
C23
R33
-VSS
+VAA
IRS2092S
LO
VS
VCC
C
D
VB
0V
0V
C
R
C
R52
C
HO
C23A
INPUT
C21
R31
C12
R50
+VCC
Integrator
COM
R30
Modulator
and
Shift level
GND
0V
-B
DirectFet
0V
LP Filter
L1
DirectFet
C18
R32
+B
IRF6645
Q4
IRF6645
Q3
Simplified Block Diagram of IRAUDAMP5 Class D Amplifier
Fig 10
System overview
IRS2092S Gate Driver IC
The IRAUDAMP5 uses the IRS2092S, a high-voltage (up to 200V), high-speed power MOSFET
PWM generator and gate driver with internal dead-time and protection functions specifically
designed for Class D audio amplifier applications. These functions include OCP and UVP. Bi-
directional current protection for both the high-side and low-side MOSFETs are internal to the
IRS2092S, and the trip levels for both MOSFETs can be set independently. In this design, the
dead time can be selected for optimized performance by minimizing dead time while preventing
shoot-through. As a result, there is no gate-timing adjustment on the board. Selectable dead time
through the DT pin voltage is an easy and reliable function which requires only two external
resistors, R11 and R9 as shown on Fig11 below.
www.irf.com
Page 10 of 49
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相關代理商/技術參數(shù) |
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|---|---|
| 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 開發(fā)工具 25W - 500W Scalable IRS2092 2-Ch BRD RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| IRAUDAMP7S | 功能描述:放大器 IC 開發(fā)工具 25W - 500W Scalable IRS2092 Half BRG BRD RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| IRAUDAMP8 | 功能描述:放大器 IC 開發(fā)工具 120W x 4 Ch Class D IRS2053M IRF665 BRD RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| IRAUDAMP9 | 功能描述:音頻 IC 開發(fā)工具 1.7kW 2ohm Class-D IRS2092 IRFB4227 BRD RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
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