CMD CM1293-02SO, CM1293-02SO, CM1293-02SR, CM1293-02SR, CM1293-02ST Schematic [ru]

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

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

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 neg­ative ESD current pulse to either the positive (V

negative (V
between V
protects the V

) supply rail. A Zener diode is embedded

N

and VN, offering two advantages. First, it

P

rail against ESD strikes, and second,

CC

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 sys­tems 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.

P

) or

The CM1293 family of devices is available with
optional lead-free finishing.

Electrical Schematics

CH6

V

P

CH1

V

N

CM1293-02ST/SO

CM1293--02SR

© 2006 California Micro Devices Corp. All rights reserved.

01/26/06 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: [phone] ● Fax: [phone] ● www.cmd.com 1

CH2

CH4

CH1

CM1293-04ST/SO

CM1293-04MS/MR

CH3

V

P

CH2

V

N

CH8

CH1

CH7

CH2

CM1293-08MS/MR

V

P

CH3

V

N

CH5

CH4

PACKAGE / PINOUT DIAGRAMS

CM1293

Top View

4

V

CH1

1

N

D036

2

V

P

3

CH2

4-Lead SOT143-4

Top View

CH1

CH2

1

D035

V

2

N

3

6-Lead SOT23-6

6

D034 /

5

4

Note: These drawings are not to scale.

PIN DESCRIPTIONS

2-CHANNEL, 4-LEAD SOT143-4 PACKAGE

PIN NAME TYPE PIN

V

1

2 CH1 I/O 2

3 CH2 I/O 3

4

PIN NAME TYPE DESCRIPTION

1 NC No connect

2V

3 CH1 I/O ESD Channel

4 CH2 I/O ESD Channel

5V

PIN NAME TYPE DESCRIPTION

1 CH1 I/O ESD Channel

2V

3 CH2 I/O ESD Channel

4 CH3 I/O ESD Channel

5V

6 CH4 I/O ESD Channel

5V

6 CH4 I/O ESD Channel

N

V

P

N

P

N

P

P

GND 1

PWR

2-CHANNEL, 5-LEAD SOT23-5 PACKAGE

GND Negative voltage supply rail

PWR Positive voltage supply rail

4-CHANNEL, 6-LEAD SOT23-6 PACKAGE

GND Negative voltage supply rail

PWR Positive voltage supply rail

PWR Positive voltage supply rail

Top View

1

NC

2

V

N

CH1

3

5-Lead SOT23-5

D032 /

D033

5

V

P

4

CH2

CH1

CH2

CH3

CH4

V

Top View

1

2

3

4

N

56

10-Lead MSOP-10

D039

10

D038 /

CH8

9

CH7

V

8

7

P

CH6

CH5

Top View

1

CH4

V

P

CH3

CH1

NC

V

CH2

P

10

2

D040 /

D041

3

4

56NC CH3

10-Lead MSOP-10

4-CHANNEL, 10-LEAD MSOP-10 PACKAGE

PIN NAME TYPE DESCRIPTION

1 CH1 I/O ESD Channel

2 NC No connect

3V

4 CH2 I/O ESD Channel

4

5 NC No connect

6 CH3 I/O ESD Channel

7 NC No connect

8V

9 CH4 I/O ESD Channel

10 NC No connect

PIN NAME TYPE DESCRIPTION

1 CH1 I/O ESD Channel

2 CH2 I/O ESD Channel

3 CH3 I/O ESD Channel

4 CH4 I/O ESD Channel

5V

6 CH5 I/O ESD Channel

7 CH6 I/O ESD Channel

8V

9 CH7 I/O ESD Channel

10 CH8 I/O ESD Channel

P

N

N

N

PWR Positive voltage supply rail

GND Negative voltage supply rail

8-CHANNEL, 10-LEAD MSOP-10 PACKAGE

PWR Positive voltage supply rail

GND Negative voltage supply rail

NC

CH4

9

V

8

7

N

NC

© 2006 California Micro Devices Corp. All rights reserved.

2 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: [phone] ● Fax: [phone] ● www.cmd.com 01/26/06

Ordering Information

PART NUMBERING INFORMATION

# of Channels Leads Package

2 4 SOT143-4 CM1293-02SR D036

2 5 SOT23-5 CM1293-02ST D032 CM1293-02SO D033

4 6 SOT23-6 CM1293-04ST D034 CM1293-04SO D035

4 10 MSOP-10 CM1293-04MS D040 CM1293-04MR D041

8 10 MSOP-10 CM1293-08MS D038 CM1293-08MR D039

Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.

Specifications

Standard Finish Lead-free Finish

Ordering Part

Number

1

Part Marking

Ordering Part

Number

1

CM1293

Part Marking

ABSOLUTE MAXIMUM RATINGS

PARAMETER RATING UNITS

Operating Supply Voltage (V

Operating Temperature Range -40 to +85 °C

Storage Temperature Range -65 to +150 °C

DC Voltage at any channel input (V

- VN)6.0V

P

- 0.5) to (VP + 0.5) V

N

STANDARD OPERATING CONDITIONS

PARAMETER RATING UNITS

Operating Temperature Range -40 to +85 °C

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)

225
225
225
400
400

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: [phone] ● Fax: [phone] ● www.cmd.com 3

Specifications (cont’d)

CM1293

ELECTRICAL OPERATING CHARACTERISTICS

1

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

I

V

I

LEAK

C

Operating Supply Voltage (VP-VN)3.35.5V

P

Operating Supply Current (VP-VN)=3.3V 8.0 μA

P

Diode Forward Voltage

F

Top Diode
Bottom Diode

IF = 8mA; TA=25°C

0.60

0.60

0.80

0.80

0.95

0.95

V
V

Channel Leakage Current TA=25°C; VP=5V, VN=0V ±0.1 ±1.0 μA

Channel Input Capacitance At 1 MHz, VP=3.3V, VN=0V, VIN=1.65V;

IN

2.0 pF

Note 2

ΔC

V

ESD

Channel I/O to I/O capacitance 1.5 pF

IO

ESD Protection

Peak Discharge Voltage at any
channel input, in system

a) Contact discharge per

Notes 2, 4 & 5; T

=25°C

A

±8

kV
IEC 61000-4-2 standard
b) Human Body Model,
MIL-STD-883, Method

Notes 2, 3 & 5; T

=25°C

A

±15

kV

3015

R

V

DYN

Channel Clamp Voltage

CL

Positive Transients
Negative Transients

Dynamic Resistance

Positive Transients
Negative Transients

At 8kV ESD HBM; TA=25°C; Notes 2 & 3

TA=25°C; Notes 5 & 6

+9.0

-9.0

1.2

0.6

V
V

Ω
Ω

Note 1: All parameters specified at TA = -40°C to +85°C unless otherwise noted.
Note 2: These parameters guaranteed by design and characterization.

Note 3: Human Body Model per MIL-STD-883, Method 3015, C
Note 4: Standard IEC 61000-4-2 with C
Note 5: These measurements performed with no external capacitor on V
Note 6: Measured under pulsed conditions, pulse width = 0.7mS, maximum current = 1.5A.

© 2006 California Micro Devices Corp. All rights reserved.

Discharge

= 150pF, R

Discharge

= 100pF, R

Discharge

= 330Ω, VP = 3.3V, VN grounded.

.

P

Discharge

= 1.5KΩ, VP = 3.3V, VN grounded.

4 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: [phone] ● Fax: [phone] ● www.cmd.com 01/26/06