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| 型号： | NUP4114UCLW1T2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 5/9页 |
| 文件大小： | 0K |
| 描述： | TVS ARRAY QUAD UNIDIR SC88 |
| 标准包装： | 3,000 |
| 电压 - 反向隔离（标准值）： | 5.5V |
| 电压 - 击穿： | 6V |
| 电极标记： | 4 通道阵列 - 双向 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP，SC-88，SOT-363 |
| 供应商设备封装： | SC-88 |
| 包装： | 带卷 (TR) |
NUP4114 Series, SZNUP4114HMR6T1G
APPLICATIONS INFORMATION
The new NUP4114 is a low capacitance TVS diode array
designed to protect sensitive electronics such as
communications systems, computers, and computer
Option 2
Protection of four data lines with bias and power supply
isolation resistor.
peripherals against damage due to ESD events or transient
overvoltage conditions. Because of its low capacitance, it
can be used in high speed I/O data lines. The integrated
design of the NUP4114 offers low capacitance steering
diodes and a TVS diode integrated in a single package
(TSOP ? 6). If a transient condition occurs, the steering
diodes will drive the transient to the positive rail of the
I/O 1
I/O 2
1
2
6
5
V CC
10 k
power supply or to ground. The TVS device protects the
power line against overvoltage conditions to avoid damage
3
4
to the power supply and any downstream components.
NUP4114 Configuration Options
The NUP4114 is able to protect up to four data lines
against transient overvoltage conditions by driving them to
a fixed reference point for clamping purposes. The steering
diodes will be forward biased whenever the voltage on the
protected line exceeds the reference voltage (V f or
V CC + V f ). The diodes will force the transient current to
bypass the sensitive circuit.
Data lines are connected at pins 1, 3, 4 and 6. The negative
reference is connected at pin 2. This pin must be connected
directly to ground by using a ground plane to minimize the
PCB’s ground inductance. It is very important to reduce the
PCB trace lengths as much as possible to minimize parasitic
inductances.
I/O 3
I/O 4
The NUP4114 can be isolated from the power supply by
connecting a series resistor between pin 5 and V CC . A 10 k W
resistor is recommended for this application. This will
maintain a bias on the internal TVS and steering diodes,
reducing their capacitance.
Option 3
Protection of four data lines using the internal TVS diode
as reference.
I/O 1
I/O 2
Option 1
1
6
Protection of four data lines and the power supply using
V CC as reference.
I/O 1
I/O 2
1
6
I/O 3
I/O 4
2
3
5
4
NC
2
5
V CC
In applications lacking a positive supply reference or
those cases in which a fully isolated power supply is
3
4
required, the internal TVS can be used as the reference. For
these applications, pin 5 is not connected. In this
I/O 3
I/O 4
For this configuration, connect pin 5 directly to the
positive supply rail (V CC ), the data lines are referenced to
the supply voltage. The internal TVS diode prevents
overvoltage on the supply rail. Biasing of the steering diodes
configuration, the steering diodes will conduct whenever the
voltage on the protected line exceeds the working voltage of
the TVS plus one diode drop (V C = V f + V TVS ).
ESD Protection of Power Supply Lines
When using diodes for data line protection, referencing to
a supply rail provides advantages. Biasing the diodes
reduces their capacitance and minimizes signal distortion.
reduces their capacitance.
http://onsemi.com
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NUP4114UCW1 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Transient Voltage Suppressors |
| NUP4114UCW1_10 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Transient Voltage Suppressors |
| NUP4114UCW1T2G | 功能描述:TVS二极管阵列 TVS ARRAY RoHS:否 制造商:Littelfuse 极性: 通道:4 Channels 击穿电压: 钳位电压:11.5 V 工作电压:2.5 V 峰值浪涌电流:20 A 安装风格:SMD/SMT 端接类型:SMD/SMT 系列: 最小工作温度:- 40 C 最大工作温度:+ 85 C |
| NUP4114UPXV6 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Transient Voltage Suppressors |
| NUP4114UPXV6T1G | 功能描述:TVS二极管阵列 LOW CAP TVS ARRAY RoHS:否 制造商:Littelfuse 极性: 通道:4 Channels 击穿电压: 钳位电压:11.5 V 工作电压:2.5 V 峰值浪涌电流:20 A 安装风格:SMD/SMT 端接类型:SMD/SMT 系列: 最小工作温度:- 40 C 最大工作温度:+ 85 C |
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