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6 and 8-Channel Low Capacitance ESD Protection Arrays CM1213
Features
* 6 or 8 channels of ESD protection Note: For 1, 2, and 4 channel devices, see the CM1213A datasheet. Provides ESD protection to IEC61000-4-2 Level 4 * 8kV contact discharge Low channel input capacitance of 1.0pF 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 SOIC and MSOP, lead-free packaging
Product Description
The CM1213 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 (VP) or negative (VN) supply rail. A Zener diode is embedded between VP and VN, offering two advantages. First, it protects the VCC 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 CM1213 will protect against ESD pulses up to 8kV per the IEC 61000-4-2 standard. These devices are particularly well-suited for protecting systems using high-speed ports such as USB2.0, IEEE1394 (Firewire(R), iLinkTM), 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.
*
* * * * * * *
Applications
* * * * * * USB2.0 ports at 480Mbps in desktop PCs, notebooks and peripherals IEEE1394 Firewire(R) 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
(c)2010 SCILLC. All rights reserved. April 2010 - Rev. 3
Publication Order Number: CM1213/D
CM1213
Block Diagram
Rev. 3 | Page 2 of 17 | www.onsemi.com
CM1213
Pin Descriptions
PIN DESCRIPTIONS
6-CHANNEL, 8-LEAD MSOP-8/SOIC-8 PACKAGES
PIN 1 2 3 4 5 6 7 8 NAME CH1 CH2 VN CH3 CH4 CH5 VP CH6 TYPE I/O I/O GND I/O I/O I/O PWR I/O DESCRIPTION ESD Channel ESD Channel Negative voltage supply rail ESD Channel ESD Channel ESD Channel Positive voltage supply rail ESD Channel
PIN DESCRIPTIONS
8-CHANNEL, 10-LEAD MSOP-10 PACKAGE
PIN 1 2 3 4 5 6 7 8 9 10 NAME CH1 CH2 CH3 CH4 VN CH5 CH6 VP CH7 CH8 TYPE I/O I/O I/O I/O GND I/O I/O PWR I/O I/O DESCRIPTION ESD Channel ESD Channel ESD Channel ESD Channel Negative voltage supply rail ESD Channel ESD Channel Positive voltage supply rail ESD Channel ESD Channel
Rev. 3 | Page 3 of 17 | www.onsemi.com
CM1213
Ordering Information
PART NUMBERING INFORMATION
Lead-free Finish # of Channels 6 6 8 Leads 8 8 10 Package SOIC-8 MSOP-8 MSOP-10 Ordering Part 1 Number CM1213-06SM CM1213-06MR CM1213-08MR
Part Marking D136 D137 D138
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER Operating Supply Voltage (VP - VN) Operating Temperature Range Storage Temperature Range DC Voltage at any channel input RATING 6.0 -40 to +85 -65 to +150 (VN - 0.5) to (VP + 0.5) UNITS V C C V
STANDARD OPERATING CONDITIONS
PARAMETER Operating Temperature Range Package Power Rating MSOP-8 Package (CM1213-06MR) MSOP-10 Package (CM1213-08MR) SOIC-8 Package (CM1213-06SM) RATING -40 to +85 UNITS C
400 400 600
mW mW mW
Rev. 3 | Page 4 of 17 | www.onsemi.com
CM1213
ELECTRICAL OPERATING CHARACTERISTICS
SYMBOL PARAMETER VP IP VF Operating Supply Voltage (VP-VN) Operating Supply Current Diode Forward Voltage Top Diode Bottom Diode Channel Leakage Current Channel Input Capacitance (VP-VN)=3.3V IF = 8mA; TA=25 C CONDITIONS
(SEE NOTE 1)
MIN
TYP 3.3
MAX 5.5 8.0
UNITS V A
0.60 0.60 TA=25 VP=5V, VN=0V C; At 1 MHz, VP=3.3V, VN=0V, VIN=1.65V;
0.80 0.80 0.1 1.0
0.95 0.95 1.0 1.5
V V A pF
ILEAK CIN
C
IN
Channel Input Capacitance Matching Mutual Capacitance between signal pin and adjacent signal pin ESD Protection Peak Discharge Voltage at any channel input, in system Contact discharge per IEC 61000-4-2 standard Channel Clamp Voltage Positive Transients Negative Transients Dynamic Resistance Positive Transients Negative Transients
At 1 MHz, VP=3.3V, VN=0V, VIN=1.65V;
0.02
pF
CMUTUAL
At 1 MHz, VP=3.3V, VN=0V, VIN=1.65V;
0.11
pF
VESD
Notes 3 and 4; TA=25 C
8
kV
VCL
TA=25 IPP = 1A, tP = 8/20uS; C, Note 4
+8.8 -1.4
V V
RDYN
IPP = 1A, tP = 8/20uS Any I/O pin to Ground; Note 4
0.7 0.4

Note 1: Note 2: Note 3: Note 4:
All parameters specified at TA = -40 to +85 unless otherwise noted. C C Human Body Model per MIL-STD-883, Method 3015, CDischarge = 100pF, RDischarge = 1.5K, VP = 3.3V, VN grounded. Standard IEC 61000-4-2 with CDischarge = 150pF, RDischarge = 330, VP = 3.3V, VN grounded. These measurements performed with no external capacitor on VP (VP floating).
Rev. 3 | Page 5 of 17 | www.onsemi.com
CM1213
Ordering Information
PART NUMBERING INFORMATION
Bumps 10 Package CSP Ordering Part Number CM1205-08CP
1
Part Marking 120508
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER Storage Temperature Range RATING -65 to +150 UNITS C
STANDARD OPERATING CONDITIONS
PARAMETER Operating Temperature Range RATING -40 to +85 UNITS C
Rev. 3 | Page 6 of 17 | www.onsemi.com
CM1213
Specifications (cont'd)
ELECTRICAL OPERATING CHARACTERISTICS1
SYMBOL VREV ILEAK VSIG PARAMETER Reverse Standoff Voltage Leakage Current Signal Clamp Voltage Positive Clamp Negative Clamp In-system ESD Withstand Voltage a) Human Body Model, MIL-STD-883, Method 3015 b) Contact Discharge per IEC 61000-4-2 Level 4 Clamping Voltage during ESD Discharge MIL-STD-883 (Method 3015), 8kV Positive Transients Negative Transients Channel Capacitance CONDITIONS IDIODE=10A VIN=3.3V DC ILOAD = 10mA 5.6 -1.2 Notes 2 & 3 +30 +25 kV kV 6.8 -0.8 8.0 -0.4 V V MIN TYP 6.0 100 MAX UNITS V nA
VESD
VCL
Notes 2 & 3 +12 -8 At 2.5V DC, f = 1MHz, Note 3 39 47 V V pF
C
Note 1: TA=25 unless otherwise specified. GND in this document refers to the lower supply voltage. C Note 2: ESD applied to channel pins with respect to GND, one at a time. All other channels are open. All GND pins tied to ground. Note 3: These parameters are guaranteed by design and characterization.
Rev. 3 | Page 7 of 17 | www.onsemi.com
CM1213
Performance Information
Input Channel Capacitance Performance Curves
Rev. 3 | Page 8 of 17 | www.onsemi.com
CM1213
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, VP=3.3V)
Figure 2. Insertion Loss (S21) VS. Frequency (2.5V DC Bias, VP=3.3V)
Rev. 3 | Page 9 of 17 | www.onsemi.com
CM1213
Application Information
Design Considerations
In order to realize the maximum protection against ESD pulses, care must be taken in the PCB layout to minimize parasitic series inductances on the Supply/Ground rails as well as the signal trace segment between the signal input (typically a connector) and the ESD protection device. Refer to Application of Positive ESD Pulse between Input Channel and Ground, which illustrates an example of a positive ESD pulse striking an input channel. The parasitic series inductance back to the power supply is represented by L1 and L2. The voltage VCL on the line being protected is:
VCL = Fwd + L2 x d(IESD ) / dt voltage drop of D1 + VSUPPLY + L1 x d(IESD )
/
dt
where IESD is the ESD current pulse, and VSUPPLY is the positive supply voltage. An ESD current pulse can rise from zero to its peak value in a very short time. As an example, a level 4 contact discharge per the IEC61000-4-2 standard results in a current pulse that rises from zero to 30 Amps in 1ns. Here -9 d(IESD)/dt can be approximated by IESD/t, or 30/(1x10 ). So just 10nH of series inductance (L1 and L2 combined) will lead to a 300V increment in VCL! Similarly for negative ESD pulses, parasitic series inductance from the VN pin to the ground rail will lead to drastically increased negative voltage on the line being protected. The CM1213 has an integrated Zener diode between VP and VN. This greatly reduces the effect of supply rail inductance L2 on VCL by clamping VP at the breakdown voltage of the Zener diode. However, for the lowest possible VCL, especially when VP is biased at a voltage significantly below the Zener breakdown voltage, it is recommended that a 0.22F ceramic chip capacitor be connected between VP and the ground plane. As a general rule, the ESD Protection Array should be located as close as possible to the point of entry of expected electrostatic discharges. The power supply bypass capacitor mentioned above should be as close to the VP pin of the Protection Array as possible, with minimum PCB trace lengths to the power supply, ground planes and between the signal input and the ESD device to minimize stray series inductance.
Additional Information
See also California Micro Devices Application Note AP209, "Design Considerations for ESD Protection", in the Applications section at www.calmicro.com.
Figure 3. Application of Positive ESD Pulse between Input Channel and Ground
Rev. 3 | Page 10 of 17 | www.onsemi.com
CM1213
Mechanical Details
The CM1213 is available in MSOP-8, SOIC-8, and MSOP-10 packages with a lead-free finishing. SOIC-8 Mechanical Specifications The CM1213-06SM is supplied in an 8-pin SOIC package. Dimensions are presented below.
*
PACKAGE DIMENSIONS
Package Pins Dimensions Millimeters Min A A1 B C D E e H L # per tape and reel 1.35 0.10 0.33 0.19 4.80 3.80 Max 1.75 0.25 0.51 0.25 5.00 4.19 Min 0.053 0.004 0.013 0.007 0.189 0.150 SOIC 8 Inches Max 0.069 0.010 0.020 0.010 0.197 0.165
1.27 BSC 5.80 0.40 6.20 1.27
0.050 BSC 0.228 0.016 0.244 0.050
2500 pieces
Controlling dimension: inches
Package Dimensions for SOIC-8
Rev. 3 | Page 11 of 17 | www.onsemi.com
CM1213
Tape and Reel Specifications
PART NUMBER CM1213-06SM PACKAGE SIZE (mm) 4.90 X 6.00 X 1.55 POCKET SIZE (mm) B0 X A0 X K0 5.30 X 6.50 X 2.10 TAPE WIDTH W 12mm REEL DIAMETER 330mm (13") QTY PER REEL 2500 P0 4mm P1 8mm
Rev. 3 | Page 12 of 17 | www.onsemi.com
CM1213
Mechanical Details (Cont'd)
MSOP-8 Mechanical Specifications: The CM1213-06MR is supplied in an 8-pin MSOP package. Dimensions are presented below.
PACKAGE DIMENSIONS
Package Pins Dimensions Millimeters Min A A1 B C D E e H L # per tape and reel 0.75 0.05 0.28 0.13 2.90 2.90 Max 0.95 0.15 0.38 0.23 3.10 3.10 Min 0.030 0.002 0.011 0.005 0.114 0.114 MSOP 8 Inches Max 0.037 0.006 0.015
TOP VIEW D
8 7 6 5
H
Pin 1 Marking
E
1
2
3
4
0.009 0.122 0.122
SEA ING T PLANE
SIDE VIEW A A1 B e
0.65 BSC 4.90 BSC 0.40 0.70
0.026 BSC 0.193 BSC 0.016 0.028
END VIEW C
4000 pieces
Controlling dimension: millimeters
L
Package Dimensions for MSOP-8
Rev. 3 | Page 13 of 17 | www.onsemi.com
CM1213
Tape and Reel Specifications
PART NUMBER CM1213-06MR PACKAGE SIZE (mm) 3.00 X 3.00 X 0.85 POCKET SIZE (mm) B0 X A0 X K0 3.3 X 5.3 X1.3 TAPE WIDTH W 12mm REEL DIAMETER 330mm (13") QTY PER REEL 4000 P0 4mm P1 8mm
Rev. 3 | Page 14 of 17 | www.onsemi.com
CM1213
Mechanical Details (cont'd)
MSOP-10 Mechanical Specifications The CM1213-08MR is supplied in a 10-pin MSOP package. Dimensions are presented below.
*
PACKAGE DIMENSIONS
TOP VIEW
Package Pins Dimensions Millimeters Min A A1 B C D E e H L # per tape and reel 0.75 0.05 0.17 0.13 2.90 2.90 Max 0.95 0.15 0.33 0.23 3.10 3.10
MSOP 10 Inches Min 0.028 0.002 0.007 0.005 0.114 0.114 Max 0.038 0.006 0.013 0.009 0.122 0.122
1 2 10 9
D
8 7 6
H
Pin 1 Marking
E
3
4
5
SIDE VIEW
A
0.50 BSC 4.90 BSC 0.40 0.70 0.0196 BSC 0.193 BSC 0.0137 4000 0.029
END VIEW SEA ING T PLANE
A1 B e
C
Controlling dimension: inches
L
Package Dimensions for MSOP-10
Rev. 3 | Page 15 of 17 | www.onsemi.com
CM1213
Tape and Reel Specifications
PART NUMBER CM1213-08MR PACKAGE SIZE (mm) 3.00 X 3.00 X 0.85 POCKET SIZE (mm) B0 X A0 X K0 3.3 X 5.3 X1.3 TAPE WIDTH W 12mm REEL DIAMETER 330mm (13") QTY PER REEL 4000 P0 4mm P1 8mm
Rev. 3 | Page 16 of 17 | www.onsemi.com
CM1213
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any
products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
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Rev. 3 | Page 17 of 17 | www.onsemi.com

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