Dual-Voltage ESD Protection Array for USB Ports

CM1240
Dual-Voltage ESD
Protection Array
for USB Ports
Product Description
The CM1240 is a 4−channel ESD protection array. Three channels
of the CM1240 are low voltage (LV) diodes, which have a capacitance
of 7 pF enabling them to protect high speed I/O ports while providing
robust ESD protection. The other channel of the CM1240 is a high
voltage (HV) diode which has a capacitance of 25 pF enabling it to
protect power supply inputs or OLED power rails, etc.
The parts integrate avalanche−type ESD diodes, which provide a
very high level of protection for sensitive electronic components that
may be subjected to electrostatic discharge (ESD). The ESD
protection diodes are designed and characterized to safely dissipate
ESD strikes of ±8 kV, the maximum requirement of the
IEC61000−4−2 international standard. Using the MIL−STD−883
(Method 3015) specification for Human Body Model (HBM) ESD, the
pins are protected for contact discharges of greater than ±16 kV.
This device is particularly well suited for portable electronics (e.g.
wireless handsets, PDAs, notebook computers) because of its small
package format and easy−to−use pin assignments. In particular, the
CM1240 is ideal for protecting USB or mini−USB ports operating at
full speed (12 Mbps).
Features
•
•
•
•
•
•
Four Channels of ESD Protection
±8 kV ESD Protection (IEC61000−4−2, Contact Discharge)
±16 kV ESD Protection (HBM)
SOT−563 Space−saving Package
16 V Clamp on VCC
These Devices are Pb−Free and are RoHS Compliant
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6
1
SOT−563
SE SUFFIX
CASE 463A
MARKING DIAGRAM
L40 M G
1
L40 = Specific Device Code
M = Month Code
G
= Pb−Free Package
ORDERING INFORMATION
Device
Package
Shipping†
CM1240−F4SE
SOT−563
(Pb−Free)
5000/Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
Applications
• USB and Mini−USB Applications
• I/O Port Protection for Mobile Handsets
• Wireless Handsets
© Semiconductor Components Industries, LLC, 2011
February, 2011 − Rev. 4
1
Publication Order Number:
CM1240/D
CM1240
PACKAGE / PINOUT DIAGRAMS
Table 1. PIN DESCRIPTIONS
6−pin SOT−563 Package
Pin
Name
Description
1
D1
Cathode Connection for Low Voltage ESD Diode
2
D2
Cathode Connection for Low Voltage ESD Diode
5
D3
Cathode Connection for Low Voltage ESD Diode
3
VCC
Cathode Connection for High Voltage ESD Diode
−
NC
No Connect
−
NC
No Connect
−
NC
No Connect
−
NC
No Connect
4
GND
Anode−side Connection for All ESD Diodes
6
GND
Anode−side Connection for All ESD Diodes
D1
1
6
GND
D2
2
5
D3
VCC 3
4
GND
SOT−563
SPECIFICATIONS
Table 2. ABSOLUTE MAXIMUM RATINGS
Parameter
ESD Protection (HBM)
Pin Voltages
VCC to GND
All Other Pins to GND
Rating
Units
16
kV
[GND − 0.3] to +13
[GND − 0.3] to +5.5
Storage Temperature Range
Lead Temperature (soldering, 10 sec)
V
–65 to +150
°C
300
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 3. STANDARD OPERATING CONDITIONS
Parameter
Operating Temperature Range
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2
Rating
Units
–40 to +85
°C
CM1240
Table 4. ELECTRICAL OPERATING CHARACTERISTICS (Note 1)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
CLV
LV Diode Capacitance at 3 Vdc; 1 MHz, 30 mVac
6
pF
CHV
HV Diode Capacitance at 3 Vdc; 1 MHz, 30 mVac
25
pF
ILV
LV Diode Leakage at +3.3 V reverse bias voltage
0.01
0.4
mA
IHV
HV Diode Leakage at +11 V reverse bias voltage
0.01
0.4
mA
VCL(LV)
LV Diode Signal Clamp Voltage:
Positive Clamp, 10 mA
Negative Clamp, −10 mA
5.6
−1.5
6.8
–0.8
9
−0.4
VCL(HV)
HV Diode Signal Clamp Voltage:
Positive Clamp, 10 mA
Negative Clamp, −10 mA
13
−1.5
16
–0.8
19
−0.4
VESD
In−system ESD withstand voltage:
Human Body Model (MIL−STD−883, method 3015)
IEC 61000−4−2, contact discharge method
(Note 2)
LV Diode Dynamic Resistance:
Positive
Negative
2.8
1.2
RDYN(HV)
HV Diode Dynamic Resistance:
Positive
Negative
1.0
0.7
1. Guaranteed at 25°C only
2. ESD applied to input/output pins with respect to GND, one at a time. These parameters are guaranteed by design.
3
V
kV
±25
±12
RDYN(LV)
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V
W
W
CM1240
PACKAGE DIMENSIONS
SOT−563, 6 LEAD
CASE 463A−01
ISSUE F
D
−X−
5
6
1
2
A
4
b
e
L
E
−Y−
3
DIM
A
b
C
D
E
e
L
HE
HE
C
5 PL
6
0.08 (0.003)
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETERS
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD
FINISH THICKNESS. MINIMUM LEAD THICKNESS
IS THE MINIMUM THICKNESS OF BASE MATERIAL.
X Y
M
MILLIMETERS
MIN
NOM MAX
0.50
0.55
0.60
0.17
0.22
0.27
0.08
0.12
0.18
1.50
1.60
1.70
1.10
1.20
1.30
0.5 BSC
0.10
0.20
0.30
1.50
1.60
1.70
INCHES
NOM MAX
0.021 0.023
0.009 0.011
0.005 0.007
0.062 0.066
0.047 0.051
0.02 BSC
0.004 0.008 0.012
0.059 0.062 0.066
MIN
0.020
0.007
0.003
0.059
0.043
SOLDERING FOOTPRINT*
0.3
0.0118
0.45
0.0177
1.35
0.0531
1.0
0.0394
0.5
0.5
0.0197 0.0197
SCALE 20:1
mm Ǔ
ǒinches
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
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
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PUBLICATION ORDERING INFORMATION
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For additional information, please contact your local
Sales Representative
CM1240/D
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