2004 California Micro Devices Corp. All rights reserved.
01/09/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L Tel: 408.263.3214
L Fax: 408.263.7846 L www.calmicro.com
1
CM1209
4,6 & 8 Channel ESD Protection Arrays
with Zener Supply Clamp
Features
Four, six or eight channels of ESD protection for
high data rate signals
Zener diode protects supply rail and eliminates the
need for external by-pass capacitors
+
15 kV contact,
+
15 kV air ESD protection per
channel (IEC 61000-4-2 standard)
Low loading capacitance of 6pF typical
Low supply current
Available in miniature MSOP and SOIC packages
Lead-free versions available
Applications
ESD protection for a variety of electronic equip-
ment
Set Top Boxes
Digital TVs
I/O & VGA Port protection
Desktop and Notebook computers
PDAs
Cellular Phones
Product Description
The CM1209 family of diode arrays are designed to
provide either 4, 6 or 8 channels of ESD protection for
electronic components or sub-systems. Each channel
consists of a pair of diodes which steer the ESD cur-
rent pulse either to the positive (V
P
) or negative (V
N
)
supply. In addition, there is an integral Zener diode
between V
P
and V
N
to suppress any voltage distur-
bance due to these ESD current pulses. The CM1209
devices will protect against ESD pulses up to 15kV
contact discharge per the International Standard
IEC61000-4-2.
These devices are particularly well-suited for portable
electronics (e.g. cellular phones, PDAs, notebook com-
puters) because of its small package footprint, high
ESD protection level, and low loading capacitance.
They are also suitable for protecting video output lines
and I/O ports in computers, set top boxes, digital TVs
and peripheral equipment.
The CM1209 family of devices is optionally available
with lead-free finishing.
1
2
3
4
8
7
6
5
VP
VN
1
2
3
4
5
10 9
8
7
6
VP
VN
1
2
3
4
8
7
5
6
VP
VN
Electrical Schematics
CM1209-04
CM1209-06
CM1209-08
4-Channel
6-Channel
8-Channel
2004 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L Tel: 408.263.3214
L Fax: 408.263.7846 L www.calmicro.com
01/09/04
CM1209
PIN DESCRIPTIONS
CM1209-04
CM1209-06
CM1209-08
NAME
PIN NO.
PIN NO
PIN NO
TYPE
DESCRIPTION
CH 1
1
1
1
I/O
ESD Channel 1
CH 2
2
2
2
I/O
ESD Channel 2
CH 3
7
4
3
I/O
ESD Channel 3
CH 4
8
5
4
I/O
ESD Channel 4
CH 5
6
6
I/O
ESD Channel 5
CH 6
8
7
I/O
ESD Channel 6
CH 7
9
I/O
ESD Channel 7
CH 8
10
I/O
ESD Channel 8
V
N
3,4,5
3
5
GND
Negative voltage supply rail or ground reference
rail.
V
P
6
7
8
Supply
Positive voltage supply rail.
PACKAGE / PINOUT DIAGRAMS
Note: These drawings are not to scale.
8-pin SOIC/MSOP
1
2
3
4
8
7
6
5
CH 1
CH 2
V
N
CH 3
CH 6
V
P
CH 5
CH 4
TOP VIEW
CM1209-06SN/SM
8-pin MSOP
1
2
3
4
8
7
6
5
CH 1
CH 2
V
N
V
N
CH 4
CH 3
V
P
V
N
TOP VIEW
CM1209-04MS/MR
10-pin MSOP
1
2
3
4
10
9
8
7
CH 1
CH 2
V
N
CH 3
CH 8
CH 7
V
P
CH 6
TOP VIEW
CM1209-08MS/MR
5
6
CH 4
CH 5
CM1209-06MS/MR
2004 California Micro Devices Corp. All rights reserved.
01/09/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L Tel: 408.263.3214
L Fax: 408.263.7846
L www.calmicro.com
3
CM1209
Ordering Information
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Specifications
Note 1: Only one diode conducting at a time.
PART NUMBERING INFORMATION
# of Channels
Pins
Package
Standard Finish
Lead-free Finish
Ordering Part
Number
1
Part Marking
Ordering Part
Number
1
Part Marking
4
8
MSOP-8
CM1209-04MS
0904
CM1209-04MR 0914
6
8
SOIC-8
CM1209-06SN
CM1209-06S
CM1209-06SM
CM1209-06SM
6
8
MSOP-8
CM1209-06MS
0906
CM1209-06MR
0916
8
10
MSOP-10
CM1209-08MS
0908
CM1209-08MR
0918
ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATING
UNITS
Supply Voltage (V
P
- V
N
)
6.0
V
Diode Forward DC Current (Note 1)
20
mA
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
Package Power Rating
SOIC Package
MSOP Package
350
200
mW
mW
STANDARD OPERATING CONDITIONS
PARAMETER
RATING
UNITS
Operating Temperature Range
-40 to +85
C
Operating Supply Voltage (V
P
- V
N
)
0 to 5.5
V
2004 California Micro Devices Corp. All rights reserved.
4
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L Tel: 408.263.3214
L Fax: 408.263.7846 L www.calmicro.com
01/09/04
CM1209
Specifications (cont'd)
Note 1: All parameters specified at T
A
=-40 to +85C unless otherwise noted.
Note 2: These parameters guaranteed by design and characterization.
Note 3: From I/O pins to V
P
or V
N
only.
Note 4: Human Body Model per MIL-STD-883, Method 3015, C
Discharge
= 100pF, R
Discharge
= 1.5K
, V
P
= 5.0V, V
N
grounded.
Note 5: Standard IEC 61000-4-2 with C
Discharge
= 150pF, R
Discharge
= 330
, V
P
= 5.0V, V
N
grounded.
Note 6: These measurements performed with no external capacitor on V
P
..
ELECTRICAL OPERATING CHARACTERISTICS
(SEE NOTE 1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
I
P
Supply Current
(V
P
-V
N
)=5.5V; T
A
=25C
10
A
V
F
ESD Diode Forward Voltage
I
F
= 20mA; T
A
=25C
0.65
0.95
V
V
ZBD
Zener Clamp Reverse Breakdown
Voltage
At 1mA; T
A
=25C
7
V
I
LEAK
Channel Leakage Current
T
A
=25C
+0.1
+1.0
A
C
IN
Channel Input Capacitance
At 1 MHz, V
P
=5V, via 10K;
V
N
=0V, V
IN
=2.5V;
Notes 2 and 6
6
8
pF
V
ESD
ESD Protection
Peak Discharge Voltage at any
channel input and V
P
rail
Contact discharge per
IEC 61000-4-2 standard
Air discharge per
IEC 61000-4-2 standard
Notes 2, 3, 5, and 6
Notes 2, 3, 5, and 6
+15
+15
kV
kV
V
CL
Channel Clamp Voltage
Positive Transients
Negative Transients
At 8kV ESD HBM;
T
A
=25C; Notes 2, 4 and 6
+12.5
- 5.1
V
V
Z
POS
Dynamic Resistance of Channel Input
for Positive Transients
I = 1A; T
A
=25C; See
Figure 2; Note 6 applies
0.70
Z
NEG
Dynamic Resistance of Channel Input
for Negative Transients
I = 1A; T
A
=25C; See
Figure 2; Note 6 applies
0.45
2004 California Micro Devices Corp. All rights reserved.
01/09/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L Tel: 408.263.3214
L Fax: 408.263.7846
L www.calmicro.com
5
CM1209
Performance Information
Figure 1. Typical Variation of Channel Input
Capacitance (C
IN
) vs. Channel Input Voltage (V
IN
)
(VP = 5V via 10K resistor, VN = 0V)
Figure 2. IV Curve for CM1209
Application Information
Figure 3. Application Example Using the CM1209-06 for I/O Port Protection
0
2
4
6
8
10
0
1
2
3
4
5
Vin
Ci
n
(
p
F
)
Slope = I/Z
POS
Slope = I/Z
NEG
Current [I]
Voltage [V]
V
ZBD
CM1209-06
I/O Port
Buffers
Connector
Expansion
Typical ESD Protection
1 2 4 5 6 8
7
3
0.22
F*
* Optional capacitor should be placed as close as
possible to the V
P
pin on all CM1209 devices.
Refer to 'Design Considerations' text.
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