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
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
™
), 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.
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
CH8
CH7
V
P
CH6
CH5
CH1
CH2
V
N
CH1
V
N
CH2
CH1
CH2
V
N
CH3
CH4
CM1293-02ST/SO
CM1293--02SR
CM1293-04ST/SO
CM1293-04MS/MR
CM1293-08MS/MR
© 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
PACKAGE / PINOUT DIAGRAMS
Top View
V
N
1
4
Top View
V
P
NC
V
N
1
2
3
5
Top View
V
P
CH1
CH2
CH3
CH4
1
2
3
4
5
10
9
8
7
6
CH8
CH7
V
P
D032 /
D033
D036
D038 /
D039
CH1
2
3
CH2
CH1
4
CH6
CH5
CH2
V
N
4-Lead SOT143-4
5-Lead SOT23-5
Top View
CH1
V
N
CH2
1
2
3
6
Top View
CH4
V
P
CH3
10-Lead MSOP-10
NC
CH4
V
N
CH1
NC
V
P
1
2
3
4
5
10
9
8
7
6
6-Lead SOT23-6
Note: These drawings are not to scale.
PIN DESCRIPTIONS
2-CHANNEL, 4-LEAD SOT143-4 PACKAGE
PIN
1
2
3
4
NAME
V
N
CH1
CH2
V
P
TYPE
GND
I/O
I/O
PWR
PIN
1
2
3
4
PIN
1
2
3
4
5
6
7
8
9
10
2-CHANNEL, 5-LEAD SOT23-5 PACKAGE
PIN
1
2
3
4
5
NAME
NC
V
N
CH1
CH2
V
P
GND
I/O
I/O
PWR
TYPE
DESCRIPTION
No connect
Negative voltage supply rail
ESD Channel
ESD Channel
Positive voltage supply rail
4-CHANNEL, 6-LEAD SOT23-6 PACKAGE
PIN
1
2
3
4
5
6
5
6
NAME
CH1
V
N
CH2
CH3
V
P
CH4
V
P
CH4
TYPE
I/O
GND
I/O
I/O
PWR
I/O
PWR
I/O
DESCRIPTION
ESD Channel
Negative voltage supply rail
ESD Channel
ESD Channel
Positive voltage supply rail
ESD Channel
Positive voltage supply rail
ESD Channel
© 2006 California Micro Devices Corp. All rights reserved.
D034 /
D035
D040 /
D041
5
4
CH2
NC
NC
CH3
10-Lead MSOP-10
4-CHANNEL, 10-LEAD MSOP-10 PACKAGE
NAME
CH1
NC
V
P
CH2
NC
CH3
NC
V
N
CH4
NC
GND
I/O
I/O
PWR
I/O
TYPE
I/O
DESCRIPTION
ESD Channel
No connect
Positive voltage supply rail
ESD Channel
No connect
ESD Channel
No connect
Negative voltage supply rail
ESD Channel
No connect
8-CHANNEL, 10-LEAD MSOP-10 PACKAGE
PIN
1
2
3
4
5
6
7
8
9
10
NAME
CH1
CH2
CH3
CH4
V
N
CH5
CH6
V
N
CH7
CH8
TYPE
I/O
I/O
I/O
I/O
PWR
I/O
I/O
GND
I/O
I/O
DESCRIPTION
ESD Channel
ESD Channel
ESD Channel
ESD Channel
Positive voltage supply rail
ESD Channel
ESD Channel
Negative voltage supply rail
ESD Channel
ESD Channel
2
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.cmd.com
01/26/06
CM1293
Ordering Information
PART NUMBERING INFORMATION
Standard Finish
# of Channels
2
2
4
4
8
Leads
4
5
6
10
10
Package
SOT143-4
SOT23-5
SOT23-6
MSOP-10
MSOP-10
CM1293-02ST
CM1293-04ST
CM1293-04MS
CM1293-08MS
D032
D034
D040
D038
Ordering Part
Number
1
Part Marking
Lead-free Finish
Ordering Part
Number
1
CM1293-02SR
CM1293-02SO
CM1293-04SO
CM1293-04MR
CM1293-08MR
Part Marking
D036
D033
D035
D041
D039
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Operating Supply Voltage (V
P
- V
N
)
Operating Temperature Range
Storage Temperature Range
DC Voltage at any channel input
RATING
6.0
-40 to +85
-65 to +150
(V
N
- 0.5) to (V
P
+ 0.5)
UNITS
V
°C
°C
V
STANDARD OPERATING CONDITIONS
PARAMETER
Operating Temperature Range
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)
RATING
-40 to +85
225
225
225
400
400
UNITS
°C
mW
mW
mW
mW
mW
© 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
Specifications (cont’d)
ELECTRICAL OPERATING CHARACTERISTICS
1
SYMBOL PARAMETER
V
P
I
P
V
F
Operating Supply Voltage (V
P
-V
N
)
Operating Supply Current
Diode Forward Voltage
Top Diode
Bottom Diode
Channel Leakage Current
Channel Input Capacitance
Channel I/O to I/O capacitance
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
Channel Clamp Voltage
Positive Transients
Negative Transients
Dynamic Resistance
Positive Transients
Negative Transients
(V
P
-V
N
)=3.3V
I
F
= 8mA; T
A
=25°C
0.60
0.60
0.80
0.80
±0.1
CONDITIONS
MIN
TYP
3.3
MAX
5.5
8.0
0.95
0.95
±1.0
2.0
1.5
UNITS
V
μA
V
V
μA
pF
pF
I
LEAK
C
IN
T
A
=25°C; V
P
=5V, V
N
=0V
At 1 MHz, V
P
=3.3V, V
N
=0V, V
IN
=1.65V;
Note 2
Δ
C
IO
V
ESD
Notes 2, 4 & 5; T
A
=25°C
Notes 2, 3 & 5; T
A
=25°C
±8
±15
kV
kV
V
CL
At 8kV ESD HBM; T
A
=25°C; Notes 2 & 3
+9.0
-9.0
1.2
0.6
V
V
Ω
Ω
R
DYN
T
A
=25°C; Notes 5 & 6
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
All parameters specified at T
A
= -40°C to +85°C unless otherwise noted.
These parameters guaranteed by design and characterization.
Human Body Model per MIL-STD-883, Method 3015, C
Discharge
= 100pF, R
Discharge
= 1.5KΩ, V
P
= 3.3V, V
N
grounded.
Standard IEC 61000-4-2 with C
Discharge
= 150pF, R
Discharge
= 330Ω, V
P
= 3.3V, V
N
grounded.
These measurements performed with no external capacitor on V
P
.
Measured under pulsed conditions, pulse width = 0.7mS, maximum current = 1.5A.
© 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
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)
© 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
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