2- and 4-Channel Low Capacitance ESD Protection Arrays
Features
•
2 and 4 channels of ESD protection
Note: For the 8-channel device, see the CM1293
datasheet.
Provides ESD protection to IEC61000-4-2
• ±8kV contact discharge
Low loading capacitance of 2.0pF max.
Low clamping voltage
Channel I/O to I/O capacitance 1.5pF typical
Zener diode protects supply rail and eliminates the
need for external by-pass capacitors
Each I/O pin can withstand over 1000 ESD strikes*
Available in lead-free SOT and MSOP packages
Product Description
The CM1293A family of diode arrays has been
designed to provide ESD protection for electronic
components or sub-systems requiring minimal
capacitive loading. These devices are ideal for
protecting systems with high data and clock rates or for
circuits requiring low capacitive loading. Each ESD
channel consists of a pair of diodes in series which
steer the positive or negative ESD current pulse to
either the positive (V
P
) or negative (V
N
) supply rail. A
Zener diode is embedded between V
P
and V
N
, offering
two advantages. First, it protects the V
CC
rail against
ESD strikes, and second, it eliminates the need for a
bypass capacitor that would otherwise be needed for
absorbing positive ESD strikes to ground. The
CM1293A will protect against ESD pulses up to
±8kV
contact discharge) per the IEC 61000-4-2 Level 4
standard.
This device is particularly well-suited for protecting
systems using high-speed ports such as USB2.0,
IEEE1394 (Firewire
®
, iLink
™
), Serial ATA, DVI, HDMI
and corresponding ports in removable storage, digital
camcorders, DVD-RW drives and other applications
where extremely low loading capacitance with ESD
protection are required in a small package footprint.
The CM1293A family of devices is available with lead-
free finishing.
•
•
•
•
•
•
•
Applications
•
•
•
•
DVI ports, HDMI ports in notebooks, set top boxes,
digital TVs, LCD displays
Serial ATA ports in desktop PCs and hard disk
drives
PCI Express ports
General purpose high-speed data line ESD
protection
Electrical Schematics
V
P
CH4
V
P
CH3
CH1
CH2
V
N
CH1
V
N
CH2
CM1293A-02SO
CM1293A-02SR
CM1293A-04SO
CM1293A-04MR
*
Standard test condition is IEC61000-4-2 level 4 test circuit with each pin subjected to ±8kV contact discharge for 1000 pulses. Discharges are timed at 1 second intervals and all 1000 strikes are completed in one continuous test
run. The part is then subjected to standard production test to verify that all of the tested parameters are within spec after the 1000 strikes.
据外媒报道，萨里大学（University of Surrey）的研究人员开发出一种无需依赖GPS即可在人口密集的城市地区精确定位设备位置的人工智能系统。该系统可将定位误差从734米缩小到22米以内，这对于自动驾驶汽车和救援车辆等技术的发展意义重大。 图片来源： 萨里大学 在发表于《IEEE Robotics and Automation Letters》的论文中，研究人员介绍了PEn...[详细]
FPGA/CPLD
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
