PRELIMINARY
CM1215
1-, 2- and 4-Channel Low Capacitance ESD Arrays
Features
•
•
•
•
•
•
•
•
•
1, 2, and 4 channels of ESD protection
Provides
+
15 kV ESD protection on each channel
per the IEC 61000-4-2 ESD requirements
Channel loading capacitance of 1.6 pF typical
Channel I/O to GND capacitance difference of
0.04pF typical
Mutual capacitance of 0.13pF typical
Minimal capacitance change with temperature and
voltage
Each I/O pin can withstand over 1000 ESD strikes
SOT packages
Lead-free versions available
Product Description
The CM1215 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 neg-
ative ESD current pulse to either the positive (V
P
) or
negative (V
N
) supply rail. The CM1215 will protect
against ESD pulses up to
+
15kV per the IEC 61000-4-2
standard.
This device is particularly well-suited for protecting sys-
tems 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 CM1215 family of devices is available with
optional lead-free finishing.
Applications
•
•
•
•
•
IEEE1394 Firewire
®
ports at 400Mbps / 800Mbps
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 protec-
tion
Simplified Electrical Schematic
V
P
V
P
CH4
V
P
CH3
CH1
CH1
CH2
V
N
CM1215-01ST/SO
V
N
CM1215-02ST/SO
CM1215-02SS/SR
CH1
V
N
CH2
CM1215-04ST/SO
©
2005 California Micro Devices Corp. All rights reserved.
06/30/05
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
1
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
