BZA900A

DISCRETE SEMICONDUCTORS DATA SHEET M3D743 BZA900A-series Quadruple ESD transient voltage suppressor Product specification 2001 Sep 03 Philips Semiconductors Product specification Quadruple ESD transient voltage suppressor FEATURES • ESD rating >8 kV, according to IEC61000-4-2 • SOT665 surface mount package • Common anode configuration. APPLICATIONS • Computers and peripherals • Audio and video equipment • Communication systems DESCRIPTION Monolithic transient voltage suppressor diode in a five lead SOT665 package for 4-bit wide ESD transient suppression. MARKING TYPE NUMBER BZA956A BZA962A BZA968A MARKING CODE Z1 Z2 Z3 PINNING PIN 1 2 3 4 5 cathode 1 BZA900A-series DESCRIPTION common anode cathode 2 cathode 3 cathode 4 handbook, halfpage 5 4 1 3 2 4 5 1 2 3 MGW315 Fig.1 Simplified outline (SOT665) and symbol. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL Per diode IZ IF IFSM Ptot PZSM working current continuous forward current total power dissipation non repetitive peak reverse power dissipation: BZA956A BZA962A BZA968A Tstg Tj Notes 1. DC working current limited by Ptot(max). 2. Device mounted on standard printed-circuit board. storage temperature junction temperature Tamb = 25 °C Tamb = 25 °C Tamb = 25 °C; note 2; see Fig.5 square pulse; tp = 1 ms; see Fig.3 − − − −65 − 16 15 14 +150 150 W W W °C °C − − − − note 1 200 4 335 mA mA A mW PARAMETER CONDITIONS MIN. MAX. UNIT non-repetitive peak forward current tp = 1 ms; square pulse 2001 Sep 03 2 Philips Semiconductors Product specification Quadruple ESD transient voltage suppressor THERMAL CHARACTERISTICS SYMBOL Rth j-a Rth j-s PARAMETER thermal resistance from junction to ambient thermal resistance from junction to solder point; note 1 CONDITIONS all diodes loaded one diode loaded all diodes loaded BZA900A-series VALUE 370 135 125 UNIT K/W K/W K/W Note 1. Solder point of common anode (pin 2). ELECTRICAL CHARACTERISTICS Tj = 25 °C unless otherwise specified. SYMBOL VF IR PARAMETER forward voltage reverse current BZA956A BZA962A BZA968A Table 1 Per type; BZ956A to BZA968A Tj = 25 °C unless otherwise specified. TYPE WORKING VOLTAGE VZ (V) at IZ = 1 mA DIFFERENTIAL TEMP. DIODE CAP. COEFF. Cd (pF) RESISTANCE SZ (mV/K) at at f = 1 MHz; rdif (Ω) at IZ = 1 mA IZ = 1 mA VR = 0 MAX. 400 300 200 TYP. 0.3 1.6 2.2 MAX. 125 105 90 NON-REPETITIVE PEAK REVERSE CURRENT IZSM (A) at tp = 1 ms; Tamb = 25 °C MAX. 2.2 2.1 2.0 VR = 3 V VR = 4 V VR = 4.3 V 1000 500 100 nA nA nA IF = 200 mA CONDITIONS MAX. 1.3 V UNIT MIN. BZA956A BZA962A BZA968A 5.32 5.89 6.46 TYP. 5.6 6.2 6.8 MAX. 5.88 6.51 7.14 2001 Sep 03 3 Philips Semiconductors Product specification Quadruple ESD transient voltage suppressor GRAPHICAL DATA BZA900A-series handbook, halfpage 10 MGW318 102 handbook, halfpage PZSM (W) MGW319 I ZSM (A) BZA956A BZA956A BZA962A 1 BZA968A 10 BZA962A BZA968A 10−1 10− 2 10−1 1 t p (ms) 10 1 10−2 10−1 1 t p (ms) 10 PZSM = VZSM × IZSM. VZSM is the non-repetitive peak reverse voltage at IZSM. Fig.3 Fig.2 Maximum non-repetitive peak reverse current as a function of pulse time. Maximum non-repetitive peak reverse power dissipation as a function of pulse duration (square pulse). handbook, halfpage 120 MGW320 MGT586 handbook, halfpage 400 Cd (pF) 80 Ptot (mW) 300 BZA956A BZA962A 40 BZA968A 200 100 0 0 2 4 6 V (V) R 8 0 0 50 100 Tamb (°C) 150 Tj = 25 °C; f = 1 MHz. Fig.4 Diode capacitance as a function of reverse voltage; typical values. Fig.5 Power derating curve. 2001 Sep 03 4 Philips Semiconductors Product specification Quadruple ESD transient voltage suppressor BZA900A-series handbook, full pagewidth ESD TESTER RZ CZ 450 Ω RG 223/U 50 Ω coax 10 × ATTENUATOR note 1 DIGITIZING OSCILLOSCOPE 50 Ω IEC 61000-4-2 network CZ = 150 pF; RZ = 330 Ω 1/4 BZA900A Note 1: attenuator is only used for open socket high voltage measurements vertical scale = 100 V/div horizontal scale = 50 ns/div BZA968A vertical scale = 5 V/div horizontal scale = 50 ns/div BZA962A BZA956A GND unclamped +1 kV ESD voltage waveform (IEC 61000-4-2 network) clamped +1 kV ESD voltage waveform (IEC 61000-4-2 network) GND GND vertical scale = 100 V/div horizontal scale = 50 ns/div vertical scale = 5 V/div horizontal scale = 50 ns/div unclamped −1 kV ESD voltage waveform (IEC 61000-4-2 network) clamped −1 kV ESD voltage waveform (IEC 61000-4-2 network) MGW321 Fig.6 ESD clamping test set-up and waveforms. 2001 Sep 03 5 Philips Semiconductors Product specification Quadruple ESD transient voltage suppressor APPLICATION INFORMATION Typical common anode application BZA900A-series A quadruple transient suppressor in a SOT665 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 A B C D FUNCTIONAL DECODER BZA900A GND MGW316 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 BZA900A is determined by the peak transient current and the rate of rise of that current (di/dt). Since parasitic inductances can further 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. 2001 Sep 03 6 Philips Semiconductors Product specification Quadruple ESD transient voltage suppressor PACKAGE OUTLINE Plastic surface mounted package; 5 leads BZA900A-series SOT665 D A E X S YS HE 5 4 A 1 e1 e 2 bp 3 wMA Lp detail X c 0 1 scale 2 mm DIMENSIONS (mm are the original dimensions) UNIT mm A 0.6 0.5 bp 0.27 0.17 c 0.18 0.08 D 1.7 1.5 E 1.3 1.1 e 1.0 e1 0.5 HE 1.7 1.5 Lp 0.3 0.1 w 0.1 y 0.1 OUTLINE VERSION SOT665 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION ISSUE DATE 01-01-04 01-08-27 2001 Sep 03 7 Philips Semiconductors Product specification Quadruple ESD transient voltage suppressor DATA SHEET STATUS DATA SHEET STATUS(1) Objective data PRODUCT STATUS(2) Development DEFINITIONS BZA900A-series This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. 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. This data sheet contains data from the product specification. Philips 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. Preliminary data Qualification Product data Production 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 at these or at any other conditions above those given in the 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 no representation or warranty that such applications will be suitable for the specified use without further testing or modification. DISCLAIMERS 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 result in personal injury. Philips Semiconductors customers using or selling these products 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 the use of any of these products, conveys no licence or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. 2001 Sep 03 8 Philips Semiconductors Product specification Quadruple ESD transient voltage suppressor NOTES BZA900A-series 2001 Sep 03 9 Philips Semiconductors Product specification Quadruple ESD transient voltage suppressor NOTES BZA900A-series 2001 Sep 03 10 Philips Semiconductors Product specification Quadruple ESD transient voltage suppressor NOTES BZA900A-series 2001 Sep 03 11 Philips Semiconductors – a worldwide company 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. 2001 SCA73 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 613514/1000/01/pp12 Date of release: 2001 Sep 03 Document order number: 9397 750 08542