CM1213A
1-, 2- and 4-Channel Low Capacitance ESD Protection Arrays
Features
•
•
1, 2 and 4 channels of ESD protection
Provides ESD protection to IEC61000-4-2 Level 4
- 8kV contact discharge
- 15kV air discharge
Low channel input capacitance of 0.85pF typical
Minimal capacitance change with temperature and
voltage
Channel input capacitance matching of 0.02pF
typical is ideal for differential signals
Mutual capacitance between signal pin and
adjacent signal pin - 0.11pF 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 lead-free packages
Product Description
The CM1213A 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 negative 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
CM1213A will protect against ESD pulses up to
±8kV
per the IEC 61000-4-2 standard and using the MIL
STD-883D (Method 3015) specification for Human
Body Model (HBM) ESD, all pins are protected from
contact discharges of greater than
±15kV.
These devices are particularly well-suited for protecting
systems using high-speed ports such as USB 2.0,
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 CM1213A family of devices is available with lead-
free finishing.
•
•
•
•
•
•
•
Applications
•
•
•
•
•
•
USB2.0 ports at 480Mbps in desktop PCs,
notebooks and peripherals
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
protection
Electrical Schematics
V
P
V
P
CH4
V
P
CH3
CH1
CH1
CH2
V
N
CM1213A-01SO
V
N
CM1213A-02SO
CM1213A-02SR
CH1
V
N
CH2
CM1213A-04SO
CM1213A-04MR
© 2007 California Micro Devices Corp. All rights reserved.
04/03/07
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
l
Tel: 408.263.3214
l
Fax: 408.263.7846
l
www.cmd.com
1
CM1213A
Package / Pinout Diagrams
PACKAGE / PINOUT DIAGRAMS
TOP VIEW
TOP VIEW
NC (1)
1
5
TOP VIEW
V
P
(5)
V
N
(1)
1
4
CH1 (1)
V
P
(4)
D232
D231
D233
V
N
(3)
V
N
(2)
CH1 (3)
2
3
V
P
(2)
4
CH2 (4)
CH1 (2)
2
3
CH2 (3)
3-Lead SOT23-3
CH1 (1)
V
N
(2)
CH2 (3)
TOP VIEW
1
6
5-Lead SOT23-5
CH4 (6)
V
P
(5)
CH3 (4)
TOP VIEW
1
2
3
4
5
10
9
8
7
6
NC (10)
CH4 (9)
V
N
(8)
4-Lead SOT143-4
CH1 (1)
NC (2)
D234
D237
2
3
5
4
V
P
(3)
CH2 (4)
NC (5)
NC (7)
CH3 (6)
6-Lead SOT23-6
Note: These drawings are not to scale.
10-Lead MSOP-10
Pin Descriptions
PIN
1
2
3
PIN
1
2
3
4
PIN
1
2
3
4
5
1-CHANNEL, 3-LEAD SOT23-3 PACKAGE
NAME
TYPE
DESCRIPTION
CH1
I/O
ESD Channel
V
P
PWR
Positive voltage supply rail
V
N
GND
Negative voltage supply rail
2-CHANNEL, 4-LEAD SOT143-4 PACKAGE
NAME
TYPE
DESCRIPTION
V
N
GND
Negative voltage supply rail
CH1
I/O
ESD Channel
CH2
I/O
ESD Channel
V
P
PWR
Positive voltage supply rail
2-CHANNEL, 5-LEAD SOT23-5 PACKAGE
NAME
TYPE
DESCRIPTION
NC
No Connect
V
N
GND
Negative voltage supply rail
CH1
I/O
ESD Channel
CH2
I/O
ESD Channel
V
P
PWR
Positive voltage supply rail
PIN
1
2
3
4
5
6
4-CHANNEL, 6-LEAD SOT23-6 PACKAGES
NAME
TYPE
DESCRIPTION
CH1
I/O
ESD Channel
V
N
GND
Negative voltage supply rail
CH2
I/O
ESD Channel
CH3
I/O
ESD Channel
V
P
PWR
Positive voltage supply rail
CH4
I/O
ESD Channel
4-CHANNEL, 10-LEAD MSOP-10 PACKAGE
NAME
TYPE
DESCRIPTION
CH1
I/O
ESD Channel
NC
No Connect
V
P
PWR
Positive voltage supply rail
CH2
I/O
ESD Channel
NC
No Connect
CH3
I/O
ESD Channel
NC
No Connect
V
N
GND
Negative voltage supply rail
CH4
I/O
ESD Channel
NC
No Connect
PIN
1
2
3
4
5
6
7
8
9
10
Ordering Information
PART NUMBERING INFORMATION
# of Channels
1
2
2
4
4
Leads
3
4
5
6
10
Package
SOT23-3
SOT143-4
SOT23-5
SOT23-6
MSOP-10
Lead-free Finish
Ordering Part Number
1
Part Marking
D231
CM1213A-01SO
2
CM1213A-02SR
2
CM1213A-02SO
2
CM1213A-04SO
CM1213A-04MR
D232
D233
D234
D237
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Note 2: Available Q2 ’07.
© 2007 California Micro Devices Corp. All rights reserved.
2
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
l
Tel: 408.263.3214
l
Fax: 408.263.7846
l
www.cmd.com
04/03/07
CM1213A
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
SOT23-3, SOT143-4,SOT23-5 and SOT23-6 Packages
MSOP-10 Package
RATING
–40 to +85
225
400
UNITS
°C
mW
mW
ELECTRICAL OPERATING CHARACTERISTICS
(SEE NOTE 1)
SYMBOL PARAMETER
Operating Supply Voltage (V
P
-V
N
)
V
P
I
P
V
F
Operating Supply Current
Diode Forward Voltage
Top Diode
Bottom Diode
Channel Leakage Current
Channel Input Capacitance
Channel Input Capacitance Matching
Mutual Capacitance between signal pin and
adjacent signal pin
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
CONDITIONS
(V
P
-V
N
)=3.3V
I
F
= 8mA; T
A
=25°C
0.60
0.60
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 applies
At 1 MHz, V
P
=3.3V, V
N
=0V,
V
IN
=1.65V; Note 2 applies
At 1 MHz, V
P
=3.3V, V
N
=0V,
V
IN
=1.65V; Note 2 applies
0.80
0.80
±0.1
0.85
0.02
0.11
0.95
0.95
±1.0
1.2
V
V
μA
pF
pF
pF
MIN
TYP
3.3
MAX
5.5
8.0
UNITS
V
μA
I
LEAK
C
IN
Δ
C
IN
C
MUTUAL
V
ESD
Notes 2, 4 & 5; T
A
=25°C
Notes 2, 3 & 5; T
A
=25°C
T
A
=25°C, I
PP
= 1A,
t
P
= 8/20
μ
S; Notes 2, & 5
I
PP
= 1A, t
P
= 8/20
μ
S
Any I/O pin to Ground; Note 2
and 5
±8
±15
+9.96
–1.6
0.96
0.5
kV
kV
V
V
Ω
Ω
V
CL
R
DYN
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
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
(V
P
floating).
© 2007 California Micro Devices Corp. All rights reserved.
04/03/07
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
l
Tel: 408.263.3214
l
Fax: 408.263.7846
l
www.cmd.com
3
CM1213A
Performance Information
Input Channel Capacitance Performance Curves
2.0
Input Capacitance (pF)
1.5
1.0
0.5
0.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Input Voltage (V)
Typical Variation of C
IN
vs. V
IN
(f=1MHz, VP = 3.3V, VN = 0V, 0.1
μF
chip capacitor between VP and VN,
25°C
)
1.10
Input Capacitance (pF)
1.05
1.00
0.95
0.90
0.85
0.80
0.75
-50
-25
0V DC Input Bias
1.65V DC Input Bias
0
25
50
Temperature (°C)
75
100
Typical Variation of C
IN
vs. Temp
(f=1MHz, V
IN
=30mV, VP = 3.3V, VN = 0V,
0.1
μF
chip capacitor between VP and VN)
© 2007 California Micro Devices Corp. All rights reserved.
4
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
l
Tel: 408.263.3214
l
Fax: 408.263.7846
l
www.cmd.com
04/03/07
CM1213A
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)
© 2007 California Micro Devices Corp. All rights reserved.
04/03/07
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
l
Tel: 408.263.3214
l
Fax: 408.263.7846
l
www.cmd.com
5
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