- 您现在的位置：买卖IC网 > Sheet目录247 > RCLAMP0504M.TBT (Semtech)IC TVS ARRAY 4-LINE 5V 10MSOP
RClamp0504M
PIN Descriptions
PROTECTION PRODUCTS
Applications Information (continued)
ESD Protection With RailClamps ?
RailClamps are optimized for ESD protection using the
rail-to-rail topology. Along with good board layout, these
devices virtually eliminate the disadvantages of using
discrete components to implement this topology. Con-
sider the situation shown in Figure 4 where discrete
diodes or diode arrays are configured for rail-to-rail
protection on a high speed line. During positive duration
ESD events, the top diode will be forward biased when
the voltage on the protected line exceeds the reference
voltage plus the V F drop of the diode. For negative
events, the bottom diode will be biased when the voltage
exceeds the V F of the diode. At first approximation, the
clamping voltage due to the characteristics of the protec-
tion diodes is given by:
PRELIMINARY
Figure 4 - “Rail-T o-Rail ” Pro t ection Topology
(First Approximation)
V C = V CC + V F
V C = -V F
(for positive duration pulses)
(for negative duration pulses)
However, for fast rise time transient events, the effects of
parasitic inductance must also be considered as shown
in Figure 5. Therefore, the actual clamping voltage seen
by the protected circuit will be:
V C = V CC + V F + L P di ESD /dt (for positive duration pulses)
V C = -V F - L G di ESD /dt (for negative duration pulses)
ESD current reaches a peak amplitude of 30A in 1ns for
a level 4 ESD contact discharge per IEC 61000-4-2.
Therefore, the voltage overshoot due to 1nH of series
inductance is:
V = L P di ESD /dt = 1X10 -9 (30 / 1X10 -9 ) = 30V
Example:
Consider a V CC = 5V, a typical V F of 30V (at 30A) for the
steering diode and a series trace inductance of 10nH.
The clamping voltage seen by the protected IC for a
positive 8kV (30A) ESD pulse will be:
V C = 5V + 30V + (10nH X 30V/nH) = 335V
This does not take into account that the ESD current is
directed into the supply rail, potentially damaging any
components that are attached to that rail. Also note
Figure 5 - The Effects of Parasitic Inductance
When Using Discrete Components to Implement
Rail-T o-Rail Pro t ection
Figure 6 - Rail-T o-Rail Pro t ection Using
RailClamp TVV S Arrays
? 2004 Semtech Corp.
6
www.semtech.com
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
RCLAMP0504N.TCT
IC TVS ARRAY 4-LINE 5V 6-SLP
RCLAMP0504P.TCT
IC TVS ARRAY 4-LINE 5V SLP1616P6
RCLAMP0504PA.TCT
TVS
RCLAMP0504S.TCT
IC TVS ARRAY LOW CAP SOT23-6
RCLAMP0508M.TBT
IC TVS ARRAY 4-LINE 5V 10MSOP
RCLAMP0514M.TBT
IC TVS ARRAY LOW CAP 10MSOP
RCLAMP0521P.TCT
TVS ARRAY SLP1006P2 2-PIN
RCLAMP0524J.TCT
TVS ARRAY SLP2710P8 8-PIN
相关代理商/技术参数
RCLAMP0504M.TET
制造商:Semtech Corporation 功能描述:Transient Voltage Suppression Diode Pack
RCLAMP0504MTBT
制造商:Semtech Corporation 功能描述:
RCLAMP0504N
制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:RailClamp? Low Capacitance TVS Diode Array
RCLAMP0504N.TCT
功能描述:IC TVS ARRAY 4-LINE 5V 6-SLP RoHS:是 类别:过电压，电流，温度装置 >> TVS - 二极管 系列:RailClamp® 产品目录绘图:Circuit 标准包装:15,000 系列:- 电压 - 反向隔离（标准值）:8V 电压 - 击穿:14.5V 功率（瓦特）:- 电极标记:双向 安装类型:表面贴装 封装/外壳:2-XFDFN 供应商设备封装:PG-TSSLP-2 包装:带卷 (TR) 产品目录页面:1621 (CN2011-ZH PDF) 其它名称:8V0R1B02LSE6327XTESD8V0R1B-02LSE6327ESD8V0R1B-02LSE6327INTRSP000368387
RCLAMP0504P
制造商:Semtech Corporation 功能描述:DIODE TVS QUAD 5V SLP1616P6 制造商:Semtech Corporation 功能描述:DIODE, TVS, QUAD, 5V, SLP1616P6 制造商:Semtech Corporation 功能描述:DIODE, TVS, QUAD, 5V, SLP1616P6; Clamping Voltage Vc Max:25V; No. of Pins:6 ;RoHS Compliant: Yes
RCLAMP0504P.TCT
功能描述:IC TVS ARRAY 4-LINE 5V SLP1616P6 RoHS:是 类别:过电压，电流，温度装置 >> TVS - 二极管 系列:RailClamp® 产品目录绘图:SMB 600 Watt Top
SMB 600 Watt Side 1
SMB 600 Watt Side 2 标准包装:10 系列:- 电压 - 反向隔离（标准值）:25.6V 电压 - 击穿:28.5V 功率（瓦特）:600W 电极标记:单向 安装类型:表面贴装 封装/外壳:DO-214AA，SMB 供应商设备封装:SMB 包装:剪切带 (CT) 产品目录页面:2386 (CN2011-ZH PDF) 其它名称:P6SMB30AT3GOSCT
RCLAMP0504P.TCT (G)
制造商:SEMTECH 功能描述:I.C.
RCLAMP0504PA
制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Capacitance TVS Array