DISCRETE SEMICONDUCTORS
DATA SH EET
ook, halfpage
MBD127
BZA800AL series
Quadruple ESD transient voltage
suppressor
Product specification 2002 Jan 11
Philips Semiconductors Product specification
Quadruple ESD transient voltage suppressor BZA800AL series
FEATURES
• ESD rating >8 kV contact discharge, according to
IEC1000-4-2
• SOT353 (SC-88A) surface mount package
• Common anode configuration.
APPLICATIONS
• Computers and peripherals
• Audio and video equipment
• Communication systems.
DESCRIPTION
Monolithictransientvoltagesuppressordiodeinafivelead
SOT353 (SC-88A) package for 4-bit wide ESD transient
suppression.
MARKING
TYPE NUMBER MARKING CODE
BZA856AL M1
BZA862AL M2
BZA868AL M3
PINNING
PIN DESCRIPTION
1 cathode 1
2 common anode
3 cathode 2
4 cathode 3
5 cathode 4
handbook, halfpage
5
1
4
1
3
4
5
2
3
Fig.1 Simplified outline (SOT353) and symbol.
2
MGT580
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
Per diode
I
Z
I
F
I
FSM
P
tot
P
ZSM
working current T
continuous forward current T
non-repetitive peak forward current tp= 1 ms; square pulse − 4A
total power dissipation T
non repetitive peak reverse power
=25°C − note 1 mA
amb
=25°C − 200 mA
amb
=25°C; note 2; see Fig.5 − 300 mW
amb
square pulse; tp= 1 ms; see Fig.3
dissipation:
BZA856AL − 16 W
BZA862AL − 15 W
BZA868AL − 14 W
T
stg
T
j
storage temperature −65 +150 °C
junction temperature − 150 °C
Notes
1. DC working current limited by P
tot(max)
.
2. Device mounted on standard printed-circuit board.
2002 Jan 11 2
Philips Semiconductors Product specification
Quadruple ESD transient voltage suppressor BZA800AL series
THERMAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS VALUE UNIT
R
th j-a
R
th j-s
Note
1. Solder point of common anode (pin 2).
ELECTRICAL CHARACTERISTICS
T
=25°C unless otherwise specified.
j
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
F
I
R
V
Z
r
dif
S
Z
C
d
I
ZSM
thermal resistance from junction to ambient all diodes loaded 410 K/W
thermal resistance from junction to solder point;
note 1
one diode loaded 200 K/W
all diodes loaded 185 K/W
forward voltage IF= 200 mA −−1.3 V
reverse current
BZA856AL V
BZA862AL V
BZA868AL V
=3V −−1000 nA
R
=4V −−500 nA
R
= 4.3 V −−100 nA
R
working voltage IZ=1mA
BZA856AL 5.32 5.6 5.88 V
BZA862AL 5.89 6.2 6.51 V
BZA868AL 6.46 6.8 7.14 V
differential resistance IZ=1mA
BZA856AL −−400 Ω
BZA862AL −−300 Ω
BZA868AL −−200 Ω
temperature coefficient IZ=1mA
BZA856AL − 0.3 − mV/K
BZA862AL − 1.6 − mV/K
BZA868AL − 2.2 − mV/K
diode capacitance f = 1 MHz; VR=0
BZA856AL −−125 pF
BZA862AL −−105 pF
BZA868AL −−90 pF
non-repetitive peak reverse current tp= 1 ms; T
amb
=25°C
BZA856AL −−2.2 A
BZA862AL −−2.1 A
BZA868AL −−2A
2002 Jan 11 3
Philips Semiconductors Product specification
Quadruple ESD transient voltage suppressor BZA800AL series
10
handbook, halfpage
I
ZSM
(A)
BZA856AL
−1
BZA862AL
1
BZA868AL
tp (ms)
1
−1
10
−2
10
10
Fig.2 Maximum non-repetitive peak reverse
current as a function of pulse time.
MLD790
BZA856AL
BZA868AL
tp (ms)
ZSM
MLD791
10
.
2
10
handbook, halfpage
P
ZSM
(W)
10
1
10
−2
10
P
ZSM=VZSM
V
ZSM
× I
is the non-repetitive peak reverse voltage at I
ZSM
10
.
−1
BZA862AL
1
Fig.3 Maximum non-repetitive peak reverse
power dissipation as a function of pulse
duration (square pulse).
BZA862AL
6
V
R
MLD792
(V)
120
handbook, halfpage
C
d
(pF)
80
40
0
02
Tj=25°C; f = 1 MHz.
BZA856AL
BZA868AL
48
Fig.4 Diode capacitance as a function of reverse
voltage; typical values.
400
handbook, halfpage
P
tot
(mW)
300
200
100
0
050
100 150
T
amb
Fig.5 Power derating curve.
MLD793
(°C)
2002 Jan 11 4
Philips Semiconductors Product specification
Quadruple ESD transient voltage suppressor BZA800AL series
handbook, full pagewidth
ESD TESTER DIGITIZING
R
Z
C
Z
IEC 61000-4-2 network
CZ = 150 pF; RZ = 330 Ω
450 Ω
1/4 BZA800AL
vertical scale = 100 V/div
horizontal scale = 50 ns/div
RG 223/U
50 Ω coax
10×
ATTENUATOR
note 1
Note 1: attenuator is only used for open
socket high voltage measurements
BZA868AL
BZA862AL
BZA856AL
OSCILLOSCOPE
50 Ω
vertical scale = 5 V/div
horizontal scale = 50 ns/div
GND
unclamped +1 kV ESD voltage waveform
(IEC 61000-4-2 network)
GND
unclamped −1 kV ESD voltage waveform
(IEC 61000-4-2 network)
clamped +1 kV ESD voltage waveform
(IEC 61000-4-2 network)
GND
vertical scale = 100 V/div
horizontal scale = 50 ns/div
clamped −1 kV ESD voltage waveform
(IEC 61000-4-2 network)
Fig.6 ESD clamping test set-up and waveforms.
vertical scale = 5 V/div
horizontal scale = 50 ns/div
MLD794
2002 Jan 11 5
Philips Semiconductors Product specification
Quadruple ESD transient voltage suppressor BZA800AL series
APPLICATION INFORMATION
Typical common anode application
A quadruple transient suppressor in a SOT353 (SC88A) package makes it possible to protect four separate lines using
only one package. A simplified example is shown in Fig 7.
handbook, full pagewidth
keyboard,
terminal,
printer,
etc.
I/O
BZA800AL
A
B
C
D
FUNCTIONAL
DECODER
MLD795
GND
Fig.7 Computer interface protection.
Device placement and printed-circuit board layout
Circuit board layout is of extreme importance in the suppression of transients. The clamping voltage of the BZA800AL is
determinedby the peak transient current andthe rate of rise of thatcurrent (di/dt). Since parasitic inductances canfurther
add to the clamping voltage (V = L di/dt) the series conductor lengths on the printed-circuit board should be kept to a
minimum. This includes the lead length of the suppression element.
In addition to minimizing conductor length the following printed-circuit board layout guidelines are recommended:
1. Place the suppression element close to the input terminals or connectors
2. Keep parallel signal paths to a minimum
3. Avoid running protection conductors in parallel with unprotected conductors
4. Minimize all printed-circuit board loop areas including power and ground loops
5. Minimize the length of the transient return path to ground
6. Avoid using shared transient return paths to a common ground point.
2002 Jan 11 6
Philips Semiconductors Product specification
Quadruple ESD transient voltage suppressor BZA800AL series
PACKAGE OUTLINE
Plastic surface mounted package; 5 leads SOT353
D
y
45
132
e
1
e
b
p
wBM
A
A
1
E
H
E
detail X
Q
L
p
AB
X
v M
A
c
0 1 2 mm
scale
DIMENSIONS (mm are the original dimensions)
A
UNIT
mm
VERSION
A
1.1
0.8
OUTLINE
SOT353
max
0.1
1
b
cD
p
0.30
0.25
0.20
0.10
IEC JEDEC EIAJ
2.2
1.8
(2)
E
1.35
1.3
1.15
REFERENCES
e
e
1
0.65
2002 Jan 11 7
H
2.2
2.0
L
Qywv
p
E
0.45
0.15
0.25
0.15
0.2 0.10.2
EUROPEAN
PROJECTION
ISSUE DATE
97-02-28SC-88A
Philips Semiconductors Product specification
Quadruple ESD transient voltage suppressor BZA800AL series
DATA SHEET STATUS
PRODUCT
DATA SHEET STATUS
Objective data Development This data sheet contains data from the objective specification for product
Preliminary data Qualification This data sheet contains data from the preliminary specification.
Product data Production This data sheet contains data from the product specification. Philips
(1)
STATUS
(2)
DEFINITIONS
development. Philips Semiconductors reserves the right to change the
specification in any manner without notice.
Supplementary data will be published at a later date. Philips
Semiconductors reserves the right to change the specification without
notice, in order to improve the design and supply the best possible
product.
Semiconductors reserves the right to make changes at any time in order
to improve the design, manufacturing and supply. Changes will be
communicated according to the Customer Product/Process Change
Notification (CPCN) procedure SNW-SQ-650A.
Notes
1. Please consult the most recently issued data sheet before initiating or completing a design.
2. The product status of the device(s) described in this data sheet may have changed since this data sheet was
published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.
DEFINITIONS
Short-form specification The data in a short-form
specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limiting values definition Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device.
These are stress ratings only and operation of the device
attheseoratanyotherconditionsabovethosegiveninthe
Characteristics sections of the specification is not implied.
Exposure to limiting values for extended periods may
affect device reliability.
Application information Applications that are
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
norepresentationorwarrantythatsuchapplicationswillbe
suitable for the specified use without further testing or
modification.
DISCLAIMER(2)S
Life support applications These products are not
designed for use in life support appliances, devices, or
systems where malfunction of these products can
reasonably be expected to resultin personal injury. Philips
Semiconductorscustomersusingorsellingtheseproducts
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Right to make changes Philips Semiconductors
reserves the right to make changes, without notice, in the
products, including circuits, standard cells, and/or
software, described or contained herein in order to
improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for
theuseofanyoftheseproducts,conveysnolicenceortitle
under any patent, copyright, or mask work right to these
products,andmakesnorepresentations or warranties that
these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified.
2002 Jan 11 8
Philips Semiconductors Product specification
Quadruple ESD transient voltage suppressor BZA800AL series
NOTES
2002 Jan 11 9
Philips Semiconductors Product specification
Quadruple ESD transient voltage suppressor BZA800AL series
NOTES
2002 Jan 11 10
Philips Semiconductors Product specification
Quadruple ESD transient voltage suppressor BZA800AL series
NOTES
2002 Jan 11 11
Philips Semiconductors – a w orldwide compan y
Contact information
For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825
For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
© Koninklijke Philips Electronics N.V. 2002
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Printed in The Netherlands 613514/01/pp12 Date of release: 2002 Jan 11 Document order number: 9397 750 09173
SCA74
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