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
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.
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
Electrical Schematics
8
VP
7
6
5
8
VP
7
6
5
10
9
VP
8
7
6
VN
VN
VN
1 2 3 4
CM1209-04
4-Channel
1
2 3 4
CM1209-06
6-Channel
1
2 3 4
CM1209-08
8-Channel
5
© 2004 California Micro Devices Corp. All rights reserved.
01/09/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
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Fax: 408.263.7846
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www.calmicro.com
1
CM1209
PACKAGE / PINOUT DIAGRAMS
TOP VIEW
CH 1
CH 2
V
N
V
N
1
2
3
4
8
7
6
5
CH 4
CH 3
V
P
V
N
CH 1
CH 2
V
N
CH 3
TOP VIEW
1
2
3
4
8
7
6
5
CH 6
V
P
CH 5
CH 4
CH 1
CH 2
CH 3
CH 4
V
N
TOP VIEW
1
2
3
4
5
10
9
8
7
6
CH 8
CH 7
V
P
CH 6
CH 5
8-pin MSOP
CM1209-04MS/MR
Note: These drawings are not to scale.
8-pin SOIC/MSOP
CM1209-06SN/SM
CM1209-06MS/MR
10-pin MSOP
CM1209-08MS/MR
PIN DESCRIPTIONS
CM1209-04
NAME
CH 1
CH 2
CH 3
CH 4
CH 5
CH 6
CH 7
CH 8
V
N
V
P
3,4,5
6
3
7
PIN NO.
1
2
7
8
CM1209-06
PIN NO
1
2
4
5
6
8
CM1209-08
PIN NO
1
2
3
4
6
7
9
10
5
8
TYPE
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
GND
Supply
DESCRIPTION
ESD Channel 1
ESD Channel 2
ESD Channel 3
ESD Channel 4
ESD Channel 5
ESD Channel 6
ESD Channel 7
ESD Channel 8
Negative voltage supply rail or ground reference
rail.
Positive voltage supply rail.
© 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
Ordering Information
PART NUMBERING INFORMATION
Standard Finish
Ordering Part
# of Channels
4
6
6
8
Pins
8
8
8
10
Package
MSOP-8
SOIC-8
MSOP-8
MSOP-10
Number
1
CM1209-04MS
CM1209-06SN
CM1209-06MS
CM1209-08MS
Part Marking
0904
CM1209-06S
0906
0908
Lead-free Finish
Ordering Part
Number
1
CM1209-04MR
CM1209-06SM
CM1209-06MR
CM1209-08MR
Part Marking
0914
CM1209-06SM
0916
0918
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage (V
P
- V
N
)
Diode Forward DC Current (Note 1)
Operating Temperature Range
Storage Temperature Range
DC Voltage at any channel input
Package Power Rating
SOIC Package
MSOP Package
Note 1: Only one diode conducting at a time.
RATING
6.0
20
-40 to +85
-65 to +150
(V
N
- 0.5) to (V
P
+ 0.5)
350
200
UNITS
V
mA
°C
°C
V
mW
mW
STANDARD OPERATING CONDITIONS
PARAMETER
Operating Temperature Range
Operating Supply Voltage (V
P
- V
N
)
RATING
-40 to +85
0 to 5.5
UNITS
°C
V
© 2004 California Micro Devices Corp. All rights reserved.
01/09/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
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Tel: 408.263.3214
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Fax: 408.263.7846
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www.calmicro.com
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CM1209
Specifications (cont’d)
ELECTRICAL OPERATING CHARACTERISTICS
(SEE NOTE 1)
SYMBOL
I
P
V
F
V
ZBD
I
LEAK
C
IN
PARAMETER
Supply Current
ESD Diode Forward Voltage
Zener Clamp Reverse Breakdown
Voltage
Channel Leakage Current
Channel Input Capacitance
CONDITIONS
(V
P
-V
N
)=5.5V; T
A
=25°C
I
F
= 20mA; T
A
=25°C
At 1mA; T
A
=25°C
T
A
=25°C
At 1 MHz, V
P
=5V, via 10K;
V
N
=0V, V
IN
=2.5V;
Notes 2 and 6
0.65
7
+0.1
6
+1.0
8
MIN
TYP
MAX
10
0.95
UNITS
µA
V
V
µA
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
Channel Clamp Voltage
Positive Transients
Negative Transients
Notes 2, 3, 5, and 6
Notes 2, 3, 5, and 6
At 8kV ESD HBM;
T
A
=25°C; Notes 2, 4 and 6
+
15
15
+
kV
kV
V
CL
+12.5
- 5.1
I = 1A; T
A
=25°C; See
Figure 2; Note 6 applies
I = 1A; T
A
=25°C; See
Figure 2; Note 6 applies
0.70
0.45
V
V
Ω
Ω
Z
POS
Z
NEG
Dynamic Resistance of Channel Input
for Positive Transients
Dynamic Resistance of Channel Input
for Negative Transients
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
All parameters specified at T
A
=-40 to +85°C unless otherwise noted.
These parameters guaranteed by design and characterization.
From I/O pins to V
P
or V
N
only.
Human Body Model per MIL-STD-883, Method 3015, C
Discharge
= 100pF, R
Discharge
= 1.5KΩ, V
P
= 5.0V, V
N
grounded.
Standard IEC 61000-4-2 with C
Discharge
= 150pF, R
Discharge
= 330Ω V
P
= 5.0V, V
N
grounded.
,
These measurements performed with no external capacitor on V
P
..
© 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
Performance Information
10
Slope = I/Z
POS
8
Cin (pF)
6
Current [I]
4
Slope = I/Z
NEG
V
ZBD
2
0
0
1
2
Vin
3
4
5
Voltage [V]
Figure 2.
IV Curve for CM1209
Figure 1.
Typical Variation of Channel Input
Capacitance (C
IN
) vs. Channel Input Voltage (V
IN
)
(VP = 5V via 10K resistor, VN = 0V)
Application Information
3
CM1209-06
1 24 5 6 8
7
0.22µF*
I/O Port
Buffers
Expansion
Connector
Typical ESD Protection
* Optional capacitor should be placed as close as
possible to the V
P
pin on all CM1209 devices.
Refer to ’Design Considerations’ text.
Figure 3. Application Example Using the CM1209-06 for I/O Port Protection
© 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
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