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)： 12/49頁
文件大?。?/td> 1416K
代理商： IRAUDAMP5
.
.
CH1
F
R19
.
R
R
.
AUDIO_INPUT
+VCC
-B
+B
R5
VS
HO
VB
CSH
DT
COM
LO
VCC
IN-
COMP
VAA
GND
CSD
VREF
VSS
CSLO
IRS2092S
System-level View of Class D Controller and Gate Driver IRS2092S
Fig 11
Selectable Dead-Time
The dead time of the IRS2092S is based on the voltage applied to the DT pin. (Fig 12) An
internal comparator determines the programmed dead time by comparing the voltage at the DT
pin with internal reference voltages. An internal resistive voltage divider based on different ratios
of VCC negates the need for a precise reference voltage and sets threshold voltages for each of
the four programmable settings. Shown in the table below are component values for
programmable dead times between 15 and 45 ns. To avoid drift from the input bias current of the
DT pin, a bias current of greater than 0.5mA is suggested for the external resistor divider circuit.
Resistors with up to 5% tolerance can be used.
Selectable Dead-Time
Dead-time mode
Dead time
R5
DT1
~15ns
3.3k
DT2
~25ns
5.6k
DT3
~35ns
8.2k
DT4
~45ns
open
Operational Mode
R13
8.2k
4.7k
3.3k
<10k
DT voltage
0.71 x Vcc
0.46 x Vcc
0.29 x Vcc
0 x Vcc
Default
Vcc
0.89xVcc
0.57xVcc
0.36xVcc
0.23xVcc
Shutdown
45nS
35nS
25nS
15nS
V
DT
Dead-time
Fig 12
Dead-time Settings vs. V
DT
Voltage
Default
www.irf.com
Page 11 of 49
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參數(shù)描述
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(chǎn)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(chǎn)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(chǎn)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(chǎn)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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