NXP ESD User Manual

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Date of rel ease: April 20 09

Docum ent order numb er: 9397 750 16710

Printe d in the Netherl ands

ESD protection diodes
for automotive applications

Advanced protection for FlexRay, LIN, and CAN systems

Selection guide - ESD protection diodes for automotive applications

Number of

protected lines

uni- bi-

directional

C

line

typ (pF)

P

PP

1) 2)

max (W)

ESD rating

3)

max (kV)

I

RM

@ V

RWM

max (µA) (V)

Configuration Type Packages Size (mm)

2 1

210

24

1)

30 5 3

MMBZ5V6AL

SOT23 2.9 x 1.3 x 1.0 mm

170

24

1)

30 0.5 3

MMBZ6V2AL

150

24

1)

30 0.5 4.5

MMBZ6V8AL

160

24

1)

30 0.3 6

MMBZ9V1AL

135

24

1)

30 0.3 6.5

MMBZ10VAL

110

40

1)

30 0.2 8.5

MMBZ12VAL

85

40

1)

30 0.05 12

MMBZ15VAL

70

40

1)

30 0.05 14.5

MMBZ18VAL

62

40

1)

30 0.05 17

MMBZ20VAL

48

40

1)

30 0.05 22

MMBZ27VAL

42

40

1)

30 0.05 26

MMBZ33VAL

2 1

110

40

1)

30 0.2 8.5

MMBZ12VDL

85

40

1)

30 0.1 12.8

MMBZ15VDL

70

40

1)

30 0.05 14.5

MMBZ18VCL

62

40

1)

30 0.05 17

MMBZ20VCL

48

40

1)

30 0.05 22

MMBZ27VCL

42

40

1)

30 0.05 26

MMBZ33VCL

2

11

200

2)

23 0.05 24

PESD1CAN

25

230

2)

30 0.01 24

PESD2CAN

11

4)

200

2)

23 0.05 24

PESD1FLEX

1 13

160

2)

23 0.05

15 (diode 1)

PESD1LIN

SOD323 (SC-76)

1.7 x 1.25 x 0.95 mm

24 (diode 2)

Types in bo ld are in clud ed in the Launch Pack

1)

10/100 0 µs acc . to IEC 61643-321

2)

8/20 µs a cc. to IEC61000-4-5 3) ESD pulse acc. to IEC6100 0-4-2 4) f = 5 MHz; VR = 0 V

1

2

3

bra004

1

2

3

bra526

15 V 24 V

1 2

mse213

1

2

3

M3D088

PESD1LIN, PESD1CAN, PESD2CAN, PESD1FLEX

These devices are single-component solutions for the
protection of LIN, CAN or FlexRay bus lines, in a small
SOD323 (SC-76) or SOT23 SMD plastic package.

Key features PESD1LIN

} Bidirectional protection of one LIN bus line
} Max. peak pulse power: PPP = 160 W at tp = 8/20 µs
} Low clamping voltage: V

(CL)R

= 40 V at IPP = 1 A

} Ultra-low leakage current: IRM < 1 nA
} ESD protection of up to 23 kV

Proven protection that reduces failures

These protection diodes, specifically designed for
automotive applications, reduce failures by protecting
Electronic Control Units (ECU) against ElectroStatic
Discharge (ESD) and other transient pulses that can enter
the ECU via the battery or data-bus lines.

They protect a range of electronic components,
including FlexRay bus transceivers, Local Interconnect
Network (LIN), and Controller Area Network (CAN)
devices against human-body discharge according to
MIL-STD-883 class 3, and comply with IEC 61000-4-2
level 4 (air and contact discharge), IEC 61000-4-5
(8/20 μs pulse), and IEC 61643-321 (10/1000 μs pulse)
standards.

MMBZ series

These devices offer single line bidirectional or dual-line
unidirectional transient overvoltage protection in a small
SOT23 package.

Key features

} Common cathode or common anode configuration
} Max. peak pulse power: PPP = 40 W at tp = 10/1000 µs
} Ultra-low leakage current: IRM < 1 nA
} ESD protection of up to 30 kV

Example MMBZ series application

unidirectional protection

of two lines

GND

line 2 to be protected

line 1 to be protected

MMBZ27VAL

brb318

bidirectional protection

of one line

GND

line 1 to be protected

MMBZ27VCL

Example FlexRay application

006aab053

FlexRay

TRANSCEIVER

FlexRay

bus

common

mode choke

(optional)

BM

R

T/2

R

T/2

C

G

PESD1FLEX

BP

2 1

3

Example LIN bus line application

bra328

LIN

transceiver

PESD1LIN

C

MASTER/SLAVE

C

BAT

24 V

application (e.g. voltage regulator and microcontroller)

power application (e.g. electro motor, inductive loads)

LIN node
connector

15 V

BAT

GND

LIN

MMBZ15VAL

V

RWM

= 12V, SOT23

common anode

Transient voltage suppressor

MMBZ15VDL

V

RWM

= 12.8V, SOT23

common cathode

Transient voltage suppressor

MMBZ27VAL

V

RWM

= 22V, SOT23

common anode

Transient voltage suppressor

MMBZ27VCL

V

RWM

= 22V, SOT23

common cathode

Transient voltage suppressor

PESD1FLEX

V

RWM

= 24V, SOT23

FlexRay bus ESD protection

PESD1LIN

V

RWM

= 15V (diode 1) 24V

(diode 2), SOD323

LIN bus ESD protection

PESD1CAN

V

RWM

= 24V, SOT23

CAN bus ESD protection

PESD2CAN

VR

WM

= 24V, SOT23

CAN bus ESD protection

Key features PESD1CAN

} Bidirectional protection of two CAN bus lines
} Very low capacitance Cd = 11 pF
} ESD protection of up to 23 kV

Key features PESD2CAN

} Bidirectional protection of two CAN bus lines
} Max. peak pulse power: PPP = 230 W at tp = 8/20 µs
} Low clamping voltage: V

(CL)R

= 34 V at Ipp = 1 A

} ESD protection of up to 30 kV

Key features PESD1FLEX

} Bidirectional protection of two FlexRay bus lines
} Very low capacitance C

d

= 11 pF at VR = 0 V, f = 5 MHz

} Optimized diode capacitance matching: ΔCd/Cd = 0.1 %
} ESD protection of up to 23 kV