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參數(shù)資料
| 型號： | ZNBG3111Q20 |
| 廠商： | ZETEX PLC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVP00; Number of Contacts:42; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| 封裝： | QSOP-20 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 657K |
| 代理商： | ZNBG3111Q20 |
FUNCTIONAL DIAGRAM
FUNCTIONAL DESCRIPTION
The ZNBG devices provide all the bias requirements for external FETs, including the generation
of the negative supply required for gate biasing, from the single supply voltage.The diagram
above shows a single stage from the ZNBG series. The ZNBG3110/11 contains 3 such stages. The
negative rail generator is common to both devices.
The drain voltage of the external FET Q
is set by the ZNBG device to its normal operating voltage.
This is determined by the on board V
Set reference, for the ZNBG3110 this is nominally 2.2 volts
whilst the ZNBG3111 provides nominally 2 volts.
The drain current taken by the FET is monitored by the low value resistor ID Sense. The amplifier
driving the gate of the FET adjusts the gate voltage of Q
N
so that the drain current taken matches
the current called for by an external resistor R
CAL
.
Since the FET is a depletion mode transistor, it is often necessary to drive its gate negative with
respect to ground to obtain the required drain current. To provide this capability powered from
a single positive supply, the device includes a low current negative supply generator. This
generator uses an internal oscillator and two external capacitors, C
NB
and C
SUB
.
4-130
ZNBG3110
ZNBG3111
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ZNBG3113 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVP00; No. of Contacts:42; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
| ZNBG3113Q20 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVP00; Number of Contacts:42; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
| ZNBG3114 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVP00; Number of Contacts:42; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
| ZNBG3114Q20 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVP00; No. of Contacts:42; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
| ZNBG3115 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVP00; Number of Contacts:42; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZNBG3113 | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:FET BIAS CONTROLLER WITH POLARISATION |
| ZNBG3113Q20 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION |
| ZNBG3113Q20TC | 功能描述:MOSFET 3BIAS TONE H/V SWTCH 2.2V RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續(xù)電流:130 A 電阻汲極/源極 RDS（導(dǎo)通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:Max247 封裝:Tube |
| ZNBG3114 | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:FET BIAS CONTROLLER WITH POLARISATION |
| ZNBG3114Q20 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION |
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