INTEGRATED CIRCUITS DATA SHEET TEA1207T High efficiency DC/DC converter Preliminary specification Supersedes data of 1999 Jan 14 File under Integrated Circuits, IC03 1999 Oct 21 Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T FEATURES • Supply voltage source for low-voltage chip sets • Fully integrated DC/DC converter circuit • Portable computers • Up-or-down conversion • Battery backup supplies • Start-up from 1.85 V input voltage • Cameras. • Adjustable output voltage • High efficiency over large load range GENERAL DESCRIPTION • Power handling capability up to 0.85 A continuous average current The TEA1207T is a fully integrated DC/DC converter. Efficient, compact and dynamic power conversion is achieved using a novel digitally controlled concept like Pulse Width Modulation (PWM) or Pulse Frequency Modulation (PFM), integrated low RDSon CMOS power switches with low parasitic capacitances, and fully synchronous rectification. • 275 kHz switching frequency • Low quiescent power consumption • Synchronizing with external clock • True current limit for Li-ion battery compatibility • Up to 100% duty cycle in down mode The device operates at 275 kHz switching frequency which enables the use of external components with minimum size. Deadlock is prevented by an on-chip undervoltage lockout circuit. • Undervoltage lockout • Shut-down function • 8-pin SO package. Efficient behaviour during short load peaks and compatibility with Li-ion batteries is guaranteed by an accurate current limiting function. APPLICATIONS • Cellular and cordless phones, Personal Digital Assistants (PDAs) and others ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA1207T 1999 Oct 21 SO8 DESCRIPTION plastic small outline package; 8 leads; body width 3.9 mm 2 VERSION SOT96-1 Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Voltage levels UPCONVERSION; pin U/D = LOW VI input voltage VI(start) − 5.50 V VO output voltage 2.80 − 5.50 V VI(start) start-up input voltage 1.40 1.60 1.85 V IL < 125 mA DOWNCONVERSION; pin U/D = HIGH VI input voltage 2.80 − 5.50 V VO output voltage 1.30 − 5.50 V feedback voltage 1.19 1.24 1.29 V 65 72 µA − 2 10 µA − − 0.60 A up mode −17.5 − +17.5 % down mode −17.5 − +17.5 % N-type 0.10 0.20 0.30 Ω P-type 0.10 0.22 0.35 Ω IL = 1 mA − 88 − % IL = 200 mA − 95 − % IL = 1 A; pulsed − 83 − % IL = 1 mA − 86 − % IL = 200 mA − 93 − % IL = 1 A; pulsed − 81 − % 220 275 330 kHz 4 6.5 20 MHz from standby to P0(max) − 50 − µs GENERAL Vfb Current levels Iq quiescent current on pin 3 down mode; VI = 3.6 V 52 Ishdwn current in shut-down state ILX maximum continuous current on pin 4 Tamb = 80 °C ∆Ilim current limit deviation Ilim = 0.5 to 5 A Power MOSFETs RDSon drain-to-source on-state resistance Efficiency η1 η2 efficiency upconversion efficiency downconversion VI = 3.6 V; VO = 4.6 V; L1 = 10 µH VI = 3.6 V; VO = 2.0 V; L1 = 10 µH Timing fsw switching frequency fsync synchronization clock input frequency tres response time 1999 Oct 21 PWM mode 3 This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... UPOUT/DNIN INTERNAL SUPPLY sense FET 2 START-UP CIRCUIT 4 I/V CONVERTER N-type POWER FET TEMPERATURE PROTECTION TIME COUNTER sense FET SYNC GATE 6 5 GND SYNC 7 CONTROL LOGIC AND MODE GEARBOX CURRENT LIMIT COMPARATORS 13 MHz OSCILLATOR TEA1207T Philips Semiconductors 3 High efficiency DC/DC converter P-type POWER FET 4 I/V CONVERTER ILIM BLOCK DIAGRAM andbook, full pagewidth 1999 Oct 21 LX FB BAND GAP REFERENCE DIGITAL CONTROLLER 8 1 MGR665 SHDWN U/D Preliminary specification TEA1207T Fig.1 Block diagram. Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T PINNING SYMBOL PIN DESCRIPTION U/D 1 up-or-down mode selection input; active LOW for up mode ILIM 2 current limiting resistor connection UPOUT/DNIN 3 output voltage in up mode; input voltage in down mode LX 4 inductor connection SYNC 5 synchronization clock input GND 6 ground FB 7 feedback input SHDWN 8 shut-down input handbook, halfpage U/D 1 SHDWN 7 FB UPOUT/DNIN 3 6 GND LX 4 5 SYNC ILIM 2 TEA1207T MGR666 Fig.2 Pin configuration. FUNCTIONAL DESCRIPTION cycle. As soon as more load current is taken from the output the output voltage starts to decay. Control mechanism When the output voltage becomes lower than the low limit of the window, a corrective action is taken by a ramp-up of the inductor current during a much longer time. As a result, the DC current level is increased and normal PWM control can continue. The output voltage (including ESR effect) is again within the predefined window. Figure 4 depicts the spread of the output voltage window. The absolute value is most dependent on spread, while the actual window size is not affected. For one specific device, the output voltage will not vary more than 2% typically. The TEA1207T DC/DC converter is able to operate in PFM (discontinuous conduction) or PWM (continuous conduction) operating mode. All switching actions are completely determined by a digital control circuit which uses the output voltage level as its control input. This novel digital approach enables the use of a new pulse width and frequency modulation scheme, which ensures optimum power efficiency over the complete operating range of the converter. When high output power is requested, the device will operate in PWM (continuous conduction) operating mode. This results in minimum AC currents in the circuit components and hence optimum efficiency, minimum costs and low EMC. In this operating mode, the output voltage is allowed to vary between two predefined voltage levels. As long as the output voltage stays within this so-called window, switching continues in a fixed pattern. When the output voltage reaches one of the window borders, the digital controller immediately reacts by adjusting the pulse width and inserting a current step in such a way that the output voltage stays within the window with higher or lower current capability. This approach enables very fast reaction to load variations. Figure 3 shows the converter’s response to a sudden load increase. The upper trace shows the output voltage. The ripple on top of the DC level is a result of the current in the output capacitor, which changes in sign twice per cycle, times the capacitor’s internal Equivalent Series Resistance (ESR). After each ramp-down of the inductor current, i.e. when the ESR effect increases the output voltage, the converter determines what to do in the next 1999 Oct 21 8 In low output power situations, the TEA1207T will switch over to PFM (discontinuous conduction) operating mode. In this mode, regulation information from earlier PWM operating modes is used. This results in optimum inductor peak current levels in the PFM mode, which are slightly larger than the inductor ripple current in the PWM mode. As a result, the transition between PFM and PWM mode is optimum under all circumstances. In the PFM mode the TEA1207T regulates the output voltage to the high window limit as shown in Fig.3. Synchronous rectification For optimum efficiency over the whole load range, synchronous rectifiers inside the TEA1207T ensure that during the whole second switching phase, all inductor current will flow through the low-ohmic power MOSFETs. Special circuitry is included which detects that the inductor current reaches zero. Following this detection, the digital controller switches off the power MOSFET and proceeds regulation. 5 Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T Start-up Current limiters Start-up from low input voltage in boost mode is realized by an independent start-up oscillator, which starts switching the N-type power MOSFET as soon as the voltage at pin UPOUT/DNIN is measured to be sufficiently high. The switch actions of the start-up oscillator will increase the output voltage. As soon as the output voltage is high enough for normal regulation, the digital control system takes over the control of the power MOSFETs. If the current in one of the power switches exceeds its limit in the PWM mode, the current ramp is stopped immediately, and the next switching phase is entered. Current limiting is required to enable optimal use of energy in Li-ion batteries, and to keep power conversion efficient during temporary high loads. Furthermore, current limiting protects the IC against overload conditions, inductor saturation, etc. The current limiting level is set by an external resistor. Undervoltage lockout External synchronization As a result of too high load or disconnection of the input power source, the output voltage can drop so low that normal regulation cannot be guaranteed. In that case, the device switches back to start-up mode. If the output voltage drops down even further, switching is stopped completely. If an external high-frequency clock is applied to the synchronization clock input, the switching frequency in PWM mode will be exactly that frequency divided by 22. In the PFM mode, the switching frequency is always lower. The quiescent current of the device increases when external clock pulses are applied. In case no external synchronization is necessary, the synchronization clock input must be connected to ground level. Shut-down When the shut-down input is made HIGH, the converter disables both power switches and the power consumption is reduced to a few microamperes. Behaviour at input voltage exceeding the specified range In general, an input voltage exceeding the specified range is not recommended since instability may occur. There are two exceptions: Power switches The power switches in the IC are one N-type and one P-type power MOSFET, having a typical drain-to-source resistance of 0.20 Ω and 0.22 Ω respectively. The maximum average current in the power switches is 0.60 A at Tamb = 80 °C. • Upconversion: at an input voltage higher than the target output voltage, but up to 6 V, the converter will stop switching and the internal P-type power MOSFET will be conducting. The output voltage will equal the input voltage minus some resistive voltage drop. The current limiting function is not active. Temperature protection When the device operates in PWM mode, and the die temperature gets too high (typically 175 °C), the converter stops operating. It resumes operation when the die temperature falls below 175 °C again. As a result, low-frequent cycling between the on and off state will occur. It should be noted that in the event of a device temperature around the cut-off limit, the application differs strongly from maximum specifications. 1999 Oct 21 • Downconversion: when the input voltage is lower than the target output voltage, but higher than 2.8 V, the P-type power MOSFET will stay conducting resulting in an output voltage being equal to the input voltage minus some resistive voltage drop. The current limiting function remains active. 6 Philips Semiconductors Preliminary specification High efficiency DC/DC converter load increase handbook, full pagewidth TEA1207T start corrective action Vo high window limit low window limit time IL time MGK925 Fig.3 Response to load increase. maximum positive spread of Vfb Vh handbook, full pagewidth upper specification limit 2% +4% Vl Vh Vout, typ 2% Vl −4% Vh 2% Vl typical situation lower specification limit maximum negative spread of Vfb Fig.4 Spread of location of output voltage window. 1999 Oct 21 7 MGR667 Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL Vn PARAMETER CONDITIONS voltage on any pin MIN. MAX. UNIT shut-down mode −0.2 +6.5 V operating mode −0.2 +5.9 V Tj junction temperature −25 +150 °C Tamb ambient temperature −40 +80 °C Tstg storage temperature −40 +125 °C Ves electrostatic handling voltage +4000 V +300 V human body model; note 1 −4000 machine model; note 2 −300 Notes 1. Class 3; equivalent to discharging a 100 pF capacitor through a 1500 resistor. 2. Class 2; equivalent to discharging a 200 pF capacitor through a 10 Ω resistor and a 0.75 µH inductor. THERMAL CHARACTERISTICS SYMBOL Rth(j-a) PARAMETER CONDITIONS thermal resistance from junction to ambient in free air QUALITY SPECIFICATION In accordance with “SNW-FQ-611 part E”. 1999 Oct 21 8 VALUE UNIT 150 K/W Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T CHARACTERISTICS Tamb = −40 to +80 °C; all voltages are measured with respect to ground; positive currents flow into the IC; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Voltage levels UPCONVERSION; pin U/D = LOW VI input voltage VI(start) − 5.50 V VO output voltage 2.80 − 5.50 V VI(start) start-up input voltage IL < 125 mA 1.40 1.60 1.85 V VI(uvlo) undervoltage lockout input voltage note 1 1.50 2.10 2.50 V note 2 2.80 − 5.50 V 1.30 − 5.50 V DOWNCONVERSION; PIN U/D = HIGH VI input voltage VO output voltage GENERAL Vfb feedback input voltage ∆Vwdw output voltage window 1.19 1.24 1.29 V 1.5 2.0 3.0 % down mode; V3 = 3.6 V; 52 note 3 65 72 µA − 2 10 µA Tamb = 60 °C − − 0.85 A Tamb = 80 °C − − 0.60 A up mode −17.5 − +17.5 % down mode −17.5 − +17.5 % N-type 0.10 0.20 0.30 Ω P-type 0.10 0.22 0.35 Ω IL = 1 mA − 88 − % IL = 10 mA − 93 − % IL = 50 mA − 93 − % IL = 100 mA − 94 − % IL = 200 mA − 95 − % IL = 500 mA − 92 − % IL = 1 A; pulsed − 83 − % PWM mode Current levels Iq quiescent current on pin 3 Ishdwn current in shut-down mode ILX maximum continuous current on pin 4 ∆Ilim current limit deviation Ilim = 0.5 to 5.0 A; note 4 Power MOSFETs RDSon drain-to-source on-state resistance Efficiency η1 1999 Oct 21 efficiency upconversion VI = 3.6 V; VO = 4.6 V; L1 = 10 µH; note 5 9 Philips Semiconductors Preliminary specification High efficiency DC/DC converter SYMBOL η2 PARAMETER efficiency downconversion TEA1207T CONDITIONS MIN. TYP. MAX. UNIT VI = 3.6 V; VO = 2.0 V; L1 = 10 µH; note 5 IL = 1 mA − 86 − % IL = 10 mA − 91 − % IL = 50 mA − 92 − % IL = 100 mA − 92 − % IL = 200 mA − 93 − % IL = 500 mA − 89 − % IL = 1 A; pulsed − 81 − % 220 275 330 kHz 4 6.5 20 MHz − 50 − µs Timing fsw switching frequency fsync synchronization clock input frequency tres response time PWM mode from standby to Po(max) Temperature Tamb ambient temperature −40 +25 +80 °C Tmax internal cut-off temperature 150 175 200 °C 0 − 0.4 V Digital levels VlL LOW-level input voltage on pins 1, 5 and 8 VIH HIGH-level input voltage note 6 on pin 1 V3 − 0.4 − V3 + 0.3 V on pins 5 and 8 0.55V3 − V3 + 0.3 V Notes 1. The undervoltage lockout voltage shows wide specification limits since it decreases at increasing temperature. When the temperature increases, the minimum supply voltage of the digital control part of the IC decreases and therefore the correct operation of this function is guaranteed over the whole temperature range. 2. When VI is lower than the target output voltage but higher than 2.8 V, the P-type power MOSFET will remain conducting (100% duty cycle), resulting in VO following VI. 3. V3 is the voltage on pin 3 (UPOUT/DNIN). 4. The current limit is defined by an external resistor Rlim (see Section “Current limiting resistors”). Accuracy of the current limit increases in proportion to the programmed current limiting level. 5. The specified efficiency is valid when using an output capacitor having an ESR of 0.10 Ω and a 10 µH small size inductor (Coilcraft DT1608C-103). 6. If the applied HIGH-level voltage is less than V3 − 1 V, the quiescent current (lq) of the device will increase. 1999 Oct 21 10 Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T APPLICATION INFORMATION handbook, full pagewidth D1 3 L1 LX VI TEA1207T 4 1 6 U/D 5 8 GND SYNC VO R1 7 C1 UPOUT/DNIN FB C2 2 SHDWN R2 ILIM Rlim MGR668 Fig.5 Complete application diagram for upconversion. handbook, full pagewidth VI UPOUT/DNIN 3 4 L1 LX VO TEA1207T R1 7 C1 1 2 U/D 5 ILIM 6 SYNC FB 8 GND C2 SHDWN D1 R2 Rlim MGR669 Fig.6 Complete application diagram for downconversion. 1999 Oct 21 11 Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T External component selection CURRENT LIMITING RESISTORS INDUCTOR L1 The maximum instantaneous current is set by the external resistor Rlim. The preferred type is SMD, 1% accurate. The connection of resistor Rlim differs per mode: The performance of the TEA1207T is not very sensitive to the inductance value. Best efficiency performance over a wide load current range is achieved by using e.g. TDK SLF7032-6R8M1R6, having an inductance of 6.8 µH and a saturation current level of 1.6 A. In case the maximum output current is lower, other inductors are also suitable such as the small sized Coilcraft DT1608 range. • At upconversion (up mode): resistor Rlim must be connected between pin 2 (ILIM) and pin 3 (UPOUT/DNIN). 238 The current limiting level is defined by: I Iim = ---------R Iim • At downconversion (down mode): resistor Rlim must be connected between pin 2 (ILIM) and pin 6 (GND). 270 The current limiting level is defined by: I Iim = ---------R Iim INPUT CAPACITOR C1 The value of capacitor C1 strongly depends on the type of input source. In general, a 100 µF tantalum capacitor will do, or a 10 µF ceramic capacitor featuring very low series resistance (ESR value). The average inductor current during limited current operation also depends on the inductance value, input voltage, output voltage and resistive losses in all components in the power path. Ensure that Ilim < Isat (saturation current) of the inductor. OUTPUT CAPACITOR C2 The value and type of capacitor C2 depend on the maximum output current and the ripple voltage which is allowed in the application. Low-ESR tantalum as well as ceramic capacitors show good results. The most important specification of capacitor C2 is its ESR, which mainly determines the output voltage ripple. DIODE D1 The Schottky diode is only used a short time during takeover from N-type power MOSFET and P-type power MOSFET and vice versa. Therefore, a medium-power diode such as Philips PRLL5819 is sufficient. FEEDBACK RESISTORS R1 AND R2 The output voltage is determined by the resistors R1 and R2. The following conditions apply: • Use 1% accurate SMD type resistors only. In case larger body resistors are used, the capacitance on pin 7 (feedback input) will be too large, causing inaccurate operation. • Resistors R1 and R2 should have a maximum value of 50 kΩ when connected in parallel. A higher value will result in inaccurate operation. Under these conditions, the output voltage can be R1 calculated by the formula: V O = 1.24 × 1 + -------- R2 1999 Oct 21 12 Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T PACKAGE OUTLINE SO8: plastic small outline package; 8 leads; body width 3.9 mm SOT96-1 D E A X c y HE v M A Z 5 8 Q A2 A (A 3) A1 pin 1 index θ Lp 1 L 4 e detail X w M bp 0 2.5 5 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) mm 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 5.0 4.8 4.0 3.8 1.27 6.2 5.8 1.05 1.0 0.4 0.7 0.6 0.25 0.25 0.1 0.7 0.3 0.069 0.010 0.057 0.004 0.049 0.01 0.019 0.0100 0.014 0.0075 0.20 0.19 0.16 0.15 0.050 0.01 0.01 0.004 0.028 0.012 inches 0.244 0.039 0.028 0.041 0.228 0.016 0.024 θ Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic or metal protrusions of 0.25 mm maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT96-1 076E03S MS-012AA 1999 Oct 21 EIAJ EUROPEAN PROJECTION ISSUE DATE 95-02-04 97-05-22 13 o 8 0o Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T • Use a double-wave soldering method comprising a turbulent wave with high upward pressure followed by a smooth laminar wave. SOLDERING Introduction to soldering surface mount packages This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our “Data Handbook IC26; Integrated Circuit Packages” (document order number 9398 652 90011). • For packages with leads on two sides and a pitch (e): – larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; There is no soldering method that is ideal for all surface mount IC packages. Wave soldering is not always suitable for surface mount ICs, or for printed-circuit boards with high population densities. In these situations reflow soldering is often used. – smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves at the downstream end. • For packages with leads on four sides, the footprint must be placed at a 45° angle to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves downstream and at the side corners. Reflow soldering Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. Several methods exist for reflowing; for example, infrared/convection heating in a conveyor type oven. Throughput times (preheating, soldering and cooling) vary between 100 and 200 seconds depending on heating method. Typical dwell time is 4 seconds at 250 °C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. Typical reflow peak temperatures range from 215 to 250 °C. The top-surface temperature of the packages should preferable be kept below 230 °C. Manual soldering Fix the component by first soldering two diagonally-opposite end leads. Use a low voltage (24 V or less) soldering iron applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 °C. Wave soldering Conventional single wave soldering is not recommended for surface mount devices (SMDs) or printed-circuit boards with a high component density, as solder bridging and non-wetting can present major problems. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 °C. To overcome these problems the double-wave soldering method was specifically developed. If wave soldering is used the following conditions must be observed for optimal results: 1999 Oct 21 14 Philips Semiconductors Preliminary specification High efficiency DC/DC converter TEA1207T Suitability of surface mount IC packages for wave and reflow soldering methods SOLDERING METHOD PACKAGE REFLOW(1) WAVE BGA, SQFP not suitable HLQFP, HSQFP, HSOP, HTSSOP, SMS not PLCC(3), SO, SOJ suitable suitable(2) suitable suitable LQFP, QFP, TQFP SSOP, TSSOP, VSO suitable not recommended(3)(4) suitable not recommended(5) suitable Notes 1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the Drypack information in the “Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”. 2. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink (at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version). 3. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction. The package footprint must incorporate solder thieves downstream and at the side corners. 4. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm. 5. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm. DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications. Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). 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 Where application information is given, it is advisory and does not form part of the specification. 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 customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. 1999 Oct 21 15 Philips Semiconductors – a worldwide company Argentina: see South America Australia: 3 Figtree Drive, HOMEBUSH, NSW 2140, Tel. +61 2 9704 8141, Fax. +61 2 9704 8139 Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. +43 1 60 101 1248, Fax. +43 1 60 101 1210 Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6, 220050 MINSK, Tel. +375 172 20 0733, Fax. +375 172 20 0773 Belgium: see The Netherlands Brazil: see South America Bulgaria: Philips Bulgaria Ltd., Energoproject, 15th floor, 51 James Bourchier Blvd., 1407 SOFIA, Tel. +359 2 68 9211, Fax. +359 2 68 9102 Canada: PHILIPS SEMICONDUCTORS/COMPONENTS, Tel. +1 800 234 7381, Fax. +1 800 943 0087 China/Hong Kong: 501 Hong Kong Industrial Technology Centre, 72 Tat Chee Avenue, Kowloon Tong, HONG KONG, Tel. +852 2319 7888, Fax. +852 2319 7700 Colombia: see South America Czech Republic: see Austria Denmark: Sydhavnsgade 23, 1780 COPENHAGEN V, Tel. +45 33 29 3333, Fax. +45 33 29 3905 Finland: Sinikalliontie 3, FIN-02630 ESPOO, Tel. +358 9 615 800, Fax. +358 9 6158 0920 France: 51 Rue Carnot, BP317, 92156 SURESNES Cedex, Tel. +33 1 4099 6161, Fax. +33 1 4099 6427 Germany: Hammerbrookstraße 69, D-20097 HAMBURG, Tel. +49 40 2353 60, Fax. +49 40 2353 6300 Hungary: see Austria India: Philips INDIA Ltd, Band Box Building, 2nd floor, 254-D, Dr. Annie Besant Road, Worli, MUMBAI 400 025, Tel. +91 22 493 8541, Fax. +91 22 493 0966 Indonesia: PT Philips Development Corporation, Semiconductors Division, Gedung Philips, Jl. Buncit Raya Kav.99-100, JAKARTA 12510, Tel. +62 21 794 0040 ext. 2501, Fax. +62 21 794 0080 Ireland: Newstead, Clonskeagh, DUBLIN 14, Tel. +353 1 7640 000, Fax. +353 1 7640 200 Israel: RAPAC Electronics, 7 Kehilat Saloniki St, PO Box 18053, TEL AVIV 61180, Tel. +972 3 645 0444, Fax. +972 3 649 1007 Italy: PHILIPS SEMICONDUCTORS, Via Casati, 23 - 20052 MONZA (MI), Tel. +39 039 203 6838, Fax +39 039 203 6800 Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108-8507, Tel. +81 3 3740 5130, Fax. +81 3 3740 5057 Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL, Tel. +82 2 709 1412, Fax. +82 2 709 1415 Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR, Tel. +60 3 750 5214, Fax. +60 3 757 4880 Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905, Tel. +9-5 800 234 7381, Fax +9-5 800 943 0087 Middle East: see Italy Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB, Tel. +31 40 27 82785, Fax. +31 40 27 88399 New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND, Tel. +64 9 849 4160, Fax. +64 9 849 7811 Norway: Box 1, Manglerud 0612, OSLO, Tel. +47 22 74 8000, Fax. +47 22 74 8341 Pakistan: see Singapore Philippines: Philips Semiconductors Philippines Inc., 106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI, Metro MANILA, Tel. +63 2 816 6380, Fax. +63 2 817 3474 Poland: Al.Jerozolimskie 195 B, 02-222 WARSAW, Tel. +48 22 5710 000, Fax. +48 22 5710 001 Portugal: see Spain Romania: see Italy Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW, Tel. +7 095 755 6918, Fax. +7 095 755 6919 Singapore: Lorong 1, Toa Payoh, SINGAPORE 319762, Tel. +65 350 2538, Fax. +65 251 6500 Slovakia: see Austria Slovenia: see Italy South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale, 2092 JOHANNESBURG, P.O. Box 58088 Newville 2114, Tel. +27 11 471 5401, Fax. +27 11 471 5398 South America: Al. Vicente Pinzon, 173, 6th floor, 04547-130 SÃO PAULO, SP, Brazil, Tel. +55 11 821 2333, Fax. +55 11 821 2382 Spain: Balmes 22, 08007 BARCELONA, Tel. +34 93 301 6312, Fax. +34 93 301 4107 Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM, Tel. +46 8 5985 2000, Fax. +46 8 5985 2745 Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. +41 1 488 2741 Fax. +41 1 488 3263 Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1, TAIPEI, Taiwan Tel. +886 2 2134 2886, Fax. +886 2 2134 2874 Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260, Tel. +66 2 745 4090, Fax. +66 2 398 0793 Turkey: Yukari Dudullu, Org. San. Blg., 2.Cad. Nr. 28 81260 Umraniye, ISTANBUL, Tel. +90 216 522 1500, Fax. +90 216 522 1813 Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7, 252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461 United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes, MIDDLESEX UB3 5BX, Tel. +44 208 730 5000, Fax. +44 208 754 8421 United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409, Tel. +1 800 234 7381, Fax. +1 800 943 0087 Uruguay: see South America Vietnam: see Singapore Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD, Tel. +381 11 62 5344, Fax.+381 11 63 5777 For all other countries apply to: Philips Semiconductors, International Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 Internet: http://www.semiconductors.philips.com SCA 68 © Philips Electronics N.V. 1999 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 465002/25/02/pp16 Date of release: 1999 Oct 21 Document order number: 9397 750 06213