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參數(shù)資料
| 型號： | IRS20954SPBF |
| 廠商： | International Rectifier |
| 英文描述： | Protected Digital Audio Driver |
| 中文描述： | 受保護的數(shù)字音頻驅動程序 |
| 文件頁數(shù)： | 20/25頁 |
| 文件大?。?/td> | 585K |
| 代理商： | IRS20954SPBF |
IRS20954S
www.irf.com
20
Power-down Sequence
As soon as V
DD
or V
CC
reaches the UVLO negative going threshold, protection logic makes LO and HO 0 V to turn off the
MOSFET.
UVLO VCC)
VCC
HO
LO
CHARGE/
DISCHARGE
Discharge
Figure 20: IRS20954 Power-Down Timing Chart
Power Supply Decoupling
As the IRS20954 contains analog circuitry, careful attention to the power supply decoupling should be taken to achieve proper
operation. Ceramic capacitors of 0.1 μF or more close to the power supply pins are recommended.
Please also refer to the application note AN-978 for general considerations of high voltage gate driver IC.
V
SS
Negative Bias Clamping
There is a case that V
SS
can go below the COM potential such as a case missing negative supply in dual supply configuration.
This causes excessive negative V
SS
voltage to damage the IRS20954. It is recommended to have a diode to clamp potential
negative bias to V
SS
, if there is a possibility. A standard recovery 1 A diode such as 1N4002 is sufficient in most cases for this
purpose.
VB
VDD
IN
CSD
VSS
COM
OCSET
LO
VCC
HO
VS
DT
CSH
NC
NC
VREF
Negative VSS
Clamping Diode
-Vbus
Figure 21: Negative V
SS
Clamping
相關PDF資料 |
PDF描述 |
|---|---|
| IRS20954STRPBF | Protected Digital Audio Driver |
| IRS20955PBF | PROTECTED DIGITAL AUDIO DRIVER |
| IRS20955SPBF | PROTECTED DIGITAL AUDIO DRIVER |
| IRS2104PBF | HALF-BRIDGE DRIVER |
| IRS2104SPBF | HALF-BRIDGE DRIVER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| IRS20954STRPbF | 功能描述:功率驅動器IC RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| IRS20955PBF | 制造商:International Rectifier 功能描述:MOSFET DRVR 100V 1.2A 2-OUT HI/LO SIDE HALF BRDG INV/NON-INV - Bulk |
| IRS20955SPBF | 功能描述:功率驅動器IC RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| IRS20955STRPBF | 功能描述:功率驅動器IC RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| IRS20957SPBF | 功能描述:功率驅動器IC Prot DIG Audio DRVR 100V 1.0A 500ns RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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