2006 California Micro Devices Corp. All rights reserved.
01/26/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
1
CM1293
2, 4, and 8-Channel Low Capacitance ESD Protection Arrays
Features
2, 4, and 8 channels of ESD protection
Provides
ESD protection to IEC61000-4-2
- 8kV contact discharge
- 15kV air 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 SOT, and MSOP packages
Lead-free version available
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
Product Description
The CM1293 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. 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 CM1293 will protect against
ESD pulses up to (
15kV air, 8kV contact discharge)
per the IEC 61000-4-2 Level 4 standard.
This device is particularly well-suited for protecting sys-
tems using high-speed ports such as USB2.0,
IEEE1394 (Firewire
, iLink
TM
), 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 CM1293 family of devices is available with
optional lead-free finishing.
Electrical Schematics
CH1
V
P
V
N
CM1293-04ST/SO
CH4
CH2
CH3
CH3
CH6
CH4
CH5
CH1
CM1293-08MS/MR
CH8
CH2
CH7
V
P
V
N
CH1
V
P
V
N
CM1293-02ST/SO
CH2
CM1293--02SR
CM1293-04MS/MR
2006 California Micro Devices Corp. All rights reserved.
2
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
01/26/06
CM1293
PACKAGE / PINOUT DIAGRAMS
Note: These drawings are not to scale.
6-Lead SOT23-6
1
2
6
5
3
4
D034 /
Top View
CH1
V
N
CH2
CH4
V
P
CH3
D035
5-Lead SOT23-5
1
2
5
3
4
D0
32 /
Top View
NC
V
N
CH1
V
P
CH2
D033
10-Lead MSOP-10
1
2
3
4
10
9
8
7
CH1
NC
V
P
CH2
NC
CH4
V
N
NC
Top View
5
6
NC
CH3
D
040
/
D
041
4-Lead SOT143-4
1
4
2
3
D036
Top View
V
N
CH1
V
P
CH2
10-Lead MSOP-10
1
2
3
4
10
9
8
7
CH1
CH2
CH3
CH4
CH8
CH7
V
P
CH6
Top View
5
6
V
N
CH5
D
038
/
D
039
PIN DESCRIPTIONS
2-CHANNEL, 4-LEAD SOT143-4 PACKAGE
PIN
NAME
TYPE
PIN
1
V
N
GND
1
2
CH1
I/O
2
3
CH2
I/O
3
4
V
P
PWR
4
2-CHANNEL, 5-LEAD SOT23-5 PACKAGE
PIN
NAME
TYPE
DESCRIPTION
1
NC
No connect
2
V
N
GND
Negative voltage supply rail
3
CH1
I/O
ESD Channel
4
CH2
I/O
ESD Channel
5
V
P
PWR
Positive voltage supply rail
4-CHANNEL, 6-LEAD SOT23-6 PACKAGE
PIN
NAME
TYPE
DESCRIPTION
1
CH1
I/O
ESD Channel
2
V
N
GND
Negative voltage supply rail
3
CH2
I/O
ESD Channel
4
CH3
I/O
ESD Channel
5
V
P
PWR
Positive voltage supply rail
6
CH4
I/O
ESD Channel
5
V
P
PWR
Positive voltage supply rail
6
CH4
I/O
ESD Channel
4-CHANNEL, 10-LEAD MSOP-10 PACKAGE
PIN
NAME
TYPE
DESCRIPTION
1
CH1
I/O
ESD Channel
2
NC
No connect
3
V
P
PWR
Positive voltage supply rail
4
CH2
I/O
ESD Channel
5
NC
No connect
6
CH3
I/O
ESD Channel
7
NC
No connect
8
V
N
GND
Negative voltage supply rail
9
CH4
I/O
ESD Channel
10
NC
No connect
8-CHANNEL, 10-LEAD MSOP-10 PACKAGE
PIN
NAME
TYPE
DESCRIPTION
1
CH1
I/O
ESD Channel
2
CH2
I/O
ESD Channel
3
CH3
I/O
ESD Channel
4
CH4
I/O
ESD Channel
5
V
N
PWR
Positive voltage supply rail
6
CH5
I/O
ESD Channel
7
CH6
I/O
ESD Channel
8
V
N
GND
Negative voltage supply rail
9
CH7
I/O
ESD Channel
10
CH8
I/O
ESD Channel
2006 California Micro Devices Corp. All rights reserved.
01/26/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
3
CM1293
Ordering Information
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Specifications
PART NUMBERING INFORMATION
Standard Finish
Lead-free Finish
# of Channels
Leads
Package
Ordering Part
Number
1
Part Marking
Ordering Part
Number
1
Part Marking
2
4
SOT143-4
CM1293-02SR
D036
2
5
SOT23-5
CM1293-02ST
D032
CM1293-02SO
D033
4
6
SOT23-6
CM1293-04ST
D034
CM1293-04SO
D035
4
10
MSOP-10
CM1293-04MS
D040
CM1293-04MR
D041
8
10
MSOP-10
CM1293-08MS
D038
CM1293-08MR
D039
ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATING
UNITS
Operating Supply Voltage (V
P
- V
N
)
6.0
V
Operating Temperature Range
-40 to +85
C
Storage Temperature Range
-65 to +150
C
DC Voltage at any channel input
(V
N
- 0.5) to (V
P
+ 0.5)
V
STANDARD OPERATING CONDITIONS
PARAMETER
RATING
UNITS
Operating Temperature Range
-40 to +85
C
Package Power Rating
SOT143-4 Package (CM1293-02SR)
SOT23-5 Package (CM1293-02ST/SO)
SOT23-6 Package (CM1293-04ST/SO)
MSOP-10 Package (CM1293-04MS/MR)
MSOP-10 Package (CM1293-08MS/MR)
225
225
225
400
400
mW
mW
mW
mW
mW
2006 California Micro Devices Corp. All rights reserved.
4
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
01/26/06
CM1293
Specifications (cont'd)
Note 1: All parameters specified at T
A
= -40C to +85C unless otherwise noted.
Note 2: These parameters guaranteed by design and characterization.
Note 3: Human Body Model per MIL-STD-883, Method 3015, C
Discharge
= 100pF, R
Discharge
= 1.5K
, V
P
= 3.3V, V
N
grounded.
Note 4: Standard IEC 61000-4-2 with C
Discharge
= 150pF, R
Discharge
= 330
, V
P
= 3.3V, V
N
grounded.
Note 5: These measurements performed with no external capacitor on V
P
.
Note 6: Measured under pulsed conditions, pulse width = 0.7mS, maximum current = 1.5A.
ELECTRICAL OPERATING CHARACTERISTICS
1
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
P
Operating Supply Voltage (V
P
-V
N
)
3.3
5.5
V
I
P
Operating Supply Current
(V
P
-V
N
)=3.3V
8.0
A
V
F
Diode Forward Voltage
Top Diode
Bottom Diode
I
F
= 8mA; T
A
=25C
0.60
0.60
0.80
0.80
0.95
0.95
V
V
I
LEAK
Channel Leakage Current
T
A
=25C; V
P
=5V, V
N
=0V
0.1
1.0
A
C
IN
Channel Input Capacitance
At 1 MHz, V
P
=3.3V, V
N
=0V, V
IN
=1.65V;
Note 2
2.0
pF
C
IO
Channel I/O to I/O capacitance
1.5
pF
V
ESD
ESD Protection
Peak Discharge Voltage at any
channel input, in system
a) Contact discharge per
IEC 61000-4-2 standard
b) Human Body Model,
MIL-STD-883, Method
3015
Notes 2, 4 & 5; T
A
=25C
Notes 2, 3 & 5; T
A
=25C
8
15
kV
kV
V
CL
Channel Clamp Voltage
Positive Transients
Negative Transients
At 8kV ESD HBM; T
A
=25C; Notes 2 & 3
+9.0
-9.0
V
V
R
DYN
Dynamic Resistance
Positive Transients
Negative Transients
T
A
=25C; Notes 5 & 6
1.2
0.6
2006 California Micro Devices Corp. All rights reserved.
01/26/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
5
CM1293
Performance Information (Cont'd)
Typical Filter Performance (nominal conditions unless specified otherwise, 50 Ohm Environment)
Figure 1. Insertion Loss (S21) VS. Frequency (0V DC Bias, V
P
=3.3V)
Figure 2. Insertion Loss (S21) VS. Frequency (2.5V DC Bias, V
P
=3.3V)
PDF 
ZIP