R EM MICROELECTRONIC - MARIN SA A6250 High Efficiency Linear Power Supply with Power Surveillance and Software Monitoring Description Features The A6250 offers a high level of integration by combining voltage regulation, voltage monitoring and software monitoring in a 16 lead package. The voltage regulator has a low dropout voltage (typ. 260 mV at 250 mA) and a low quiescent current (175 A). The quiescent current increases only slightly in dropout prolonging battery life. Built-in protection includes a positive transient absorber for up to 60V (load dump) and the ability to survive an unregulated input voltage of -20 V (reverse battery). The input may be connected to ground or a reverse voltage without reverse current flow from the output to the input. A comparator monitors the voltage applied at the VIN input comparing it with an internal 1.52 V reference. The power-on reset function is initialized after VIN reaches 1.52 V and takes the reset output inactive after TPOR depending of external resistance. The reset output goes active low when the VIN voltage is less than 1.52 V. The RES and EN outputs are guaranteed to be in a correct state for a regulated output voltage as low as 1.2 V. The watchdog function monitors software cycle time and execution. If software clears the watchdog too quickly (incorrect cycle time) or too slowly (incorrect execution) it will cause the system to be reset. The system enable output prevents critical control functions being activated until software has successfully cleared the watchdog three times. Such a security could be used to prevent motor controls being energized on repeated resets of a faulty system. Highly accurate 5 V, 250 mA guaranteed output Low dropout voltage, typically 260 mV at 250 mA Low quiescent current, typically 175 A Standby mode, maximum current 340 A (with 100 A load on OUTPUT) Unregulated DC input can withstand -20 V reverse battery and + 60 V power transients Fully operational for unregulated DC input voltage up to 40 V and regulated output voltage down to 3.0 V Reset output guaranteed for regulated output voltage down to 1.2 V No reverse output current Very low temperature coefficient for the regulated output Current limiting Comparator for voltage monitoring, voltage reference 1.52 V Programmable reset voltage monitoring Programmable power on reset (POR ) delay Watchdog with programmable time windows guarantees a minimum time and a maximum time between software clearing of the watchdog Time base accuracy 10% System enable output offers added security TTL/CMOS compatible -40 to +125 C temperature range PSOP2-16 package Applications Typical Operating Configuration Industrial electronics Cellular telephones Security systems Battery powered products High efficiency linear power supplies Automotive electronics Pin Assignment Unregulated Voltage PSOP2-16 5V INPUT OUTPUT + NC NC EN VIN A6250 R + VIN TCL VSS R RES TCL OUTPUT A6250 RES VSS INPUT EN NC NC NC NC NC NC GND Fig. 2 Fig. 1 Copyright (c) 2005, EM Microelectronic-Marin SA 1 www.emmicroelectronic.com R A6250 Absolute Maximum Ratings Parameter Operating Conditions Symbol Conditions Continuous voltage at INPUT - 0.3 to + 45V VINPUT to VSS Transients on INPUT for VTRANS up to + 60V t < 100 ms and duty cycle 1% Reverse supply voltage on VREV - 20 V INPUT Max. voltage at any signal pin VMAX OUTPUT + 0.3V Min. voltage at any signal pin VMIN VSS - 0.3V Storage temperature TSTO - 65 to + 150 C Operating junction TJ max. 150 C temperature Electrostatic discharge max. 1000V to MIL-STD-883C method VSmax 3015.7 with ref. to VSS Max. soldering conditions TSmax 250 C x 10s Max. output current IOUTPUTmax 300mA Table 1 Stresses above these listed maximum ratings may cause permanent damages to the device. Exposure beyond specified operating conditions may affect device reliability or cause malfunction. Decoupling Methods The input capacitor is necessary to compensate the line influences. A resistor of approx. 1 connected in series with the input capacitor may be used to damp the oscillation of the input capacitor and input inductivity. The ESR value of the capacitor plays a major role regarding the efficiency of the decoupling. It is recommended also to connect a ceramic capacitor (100 nF) directly at the IC's pins. In general the user must assure that pulses on the input line have slew rates lower than 1 V/s. On the output side, the capacitor is necessary for the stability of the regulation circuit. The stability is guaranteed for values of 22 F or bigger. It is especially important to choose a capacitor with a low ESR value. Tantal capacitors are recommended. See the notes related to Table 2. Special care must be taken in disturbed environments (automotive, proximity of motors and relays, etc.). Handling Procedures This device has built-in protection against high static voltages or electric fields; however, it is advised that normal precautions be taken as for any other CMOS component. Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the voltage range. Unused inputs must always be tied to a defined logic voltage level. Copyright (c) 2005, EM Microelectronic-Marin SA Symbol Parameter Operating junction 1) temperature 2) INPUT voltage 2)3) OUTPUT voltage 4) RES & EN guaranteed 5) OUTPUT current Comparator input voltage RC-oscillator programming Min. Max. Units TJ -40 +125 C VINPUT VOUTPUT 2.3 1.2 40 V V VOUTPUT 1.2 250 V IOUTPUT VIN 0 VOUTPUT mA V R 10 1000 k Rth(j-a) 30 90 C/W 6) Thermal resistance from 7) junction to ambient - PSOP2-16 Table 2 1) The maximum operating temperature is confirmed by sampling at initial device qualification. In production, all devices are tested at +125 C. 2) Full operation guaranteed. To achieve the load regulation specified in Table 3 a 22 F capacitor or greater is required on the INPUT, see Fig. 8. The 22 F must have an effective resistance 5 and a resonant frequency above 500 kHz. 3) A 10 F load capacitor and a 100 nF decoupling capacitor are required on the regulator OUTPUT for stability. The 10 F must have an effective series resistance of 5 and a resonant frequency above 500 kHz. 4) RES must be pulled up externally to VOUTPUT even if it is unused. (Note: RES and EN are used as inputs by EM test). 5) The OUTPUT current will not apply for all possible combinations of input voltage and output current. Combinations that would require the A6250 to work above the maximum junction temperature (+125 C) must be avoided. 6) Resistor values close to 1000 k are not recommended for applications working at 125 C. 7) The thermal resistance specified assumes the package is soldered to a PCB. The thermal resistance's value depends on the PCB's structure. A typical value of 51 C/W has been obtained with a dual layer board, with the slug soldered to the heat-sink area of the PCB (see Fig. 22). 2 www.emmicroelectronic.com R A6250 Electrical Characteristics VINPUT = 6.0 V, CL = 10 F + 100 nF, CINPUT = 22 F, TJ = -40 to +125 C, unless otherwise specified Parameter Symbol Test Conditions Supply current in standby mode ISS Supply current 1) ISS Supply current 1) ISS REXT = don't care, TCL = VOUTPUT, VIN = 0 V, IL = 100 A REXT = 100 k, I/PS at VOUTPUT, O/PS 1 M to VOUTPUT, IL = 100 A REXT = 100 k, I/PS at VOUTPUT, VINPUT =8.0 V, O/PS 1 M to VOUTPUT, IL = 100 mA IL = 250 mA IL = 100 A 100 A IL 250 mA, Output voltage Output voltage VOUTPUT VOUTPUT Output voltage temperature 2) coefficient Vth(coeff) Min. Typ. Max. Unit 140 340 A 175 400 A 1.7 7 4.2 15 5.15 5.15 mA mA V V 4.85 4.85 ppm/C 100 VLINE 6 V VINPUT 35 V, IL = 1 mA, TJ = +125 C 0.2 0.8 % Load regulation 3) Load regulation 4) Dropout voltage 4) Dropout voltage 4) Dropout voltage Dropout supply current VL VL VDROPOUT VDROPOUT VDROPOUT ISS 100 A IL 100 mA 5 mA IL 250 mA IL = 100 A IL = 100 mA IL = 250 mA VINPUT = 4.5 V, IL = 100 A, REXT = 100 k, O/PS 1 M to VOUTPUT, I/PS at VOUTPUT 0.2 0.9 40 160 260 1.2 0.7 1.45 170 5) 380 650 1.8 % % mV mV mV mA Current limit OUTPUT noise, 10Hz to 100kHz ILmax VNOISE OUTPUT tied to VSS 450 200 Line regulation 3) 3) mA V rms 4.5 VOUTPUT 5.5 V, IL = 100 A, CL = 10 F + 100 nF, CINPUT = 22 F, TJ = -40 to +125 C, unless otherwise specified RES & EN Output Low Voltage EN Output High Voltage VOL VOL VOL VOL VOUTPUT = 4.5 V, IOL= 20 mA VOUTPUT = 4.5 V, IOL = 8 mA VOUTPUT = 2.0 V, IOL = 4 mA VOUTPUT = 1.2 V, IOL = 0.5 mA VOH VOH VOH VOUTPUT = 4.5 V, IOH= -1 mA VOUTPUT = 2.0 V, IOH= -100 A VOUTPUT = 1.2 V, IOH= -30 A 0.4 0.2 0.2 0.06 3.5 1.8 1.0 0.4 0.4 0.2 4.1 1.9 1.1 V V V V V V V TCL and VIN TCL Input Low Level VIL VSS 0.8 V TCL Input High Level VIH 2.0 VOUTPUT V Leakage current TCL input VIN input resistance 6)7) Comparator reference ILI RVIN VREF VREF VREF VHY 1 A M V V V mV Comparator hysteresis 7) VSS VTCL VOUTPUT TJ = +25 C -40 C TJ +125 C 0.05 100 1.474 1.52 1.436 1.420 2 1.566 1.620 1.620 Table 3 1) If INPUT is connected to VSS, no reverse current will flow from the OUTPUT to the INPUT, however the supply current specified will be sank by the OUTPUT to supply the A6250. 2) The OUTPUT voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. 3) Regulation is measured at constant junction temperature using pulse testing with a low duty cycle. Changes in OUTPUT voltage due to heating effects are covered in the specification for thermal regulation. 4) The dropout voltage is defined as the INPUT to OUTPUT differential, measured with the input voltage equal to 5.0 V. 5) Not tested 6) The comparator and the voltage regulator have separate voltage references (see "Block Diagram" Fig. 7). 7) The comparator reference is the power-down reset threshold. The power-on reset threshold equals the comparator reference voltage plus the comparator hysteresis (see Fig. 4). Copyright (c) 2005, EM Microelectronic-Marin SA 3 www.emmicroelectronic.com R A6250 Timing Characteristics VINPUT = 6.0 V, IL = 100 A, CL = 10 F + 100 nF, CINPUT = 22 F, TJ = -40 to + 125 C, unless otherwise specified Parameter Symbol Test Conditions Min. Typ. Max. Units 250 500 ns 5 30 100 100 0.2 TWD 0.8 TWD 80 0.4 TWD 40 TWD/40 2.5 20 100 110 110 s ns ms ms 88 ms 44 ms Propagation delays: TCL to Output Pins TDIDO VIN sensitivity Logic Transition Times on all Output Pins Power-on Reset delay Watchdog Time Open Window Percentage Closed Window Time TSEN TTR TPOR TWD OWP TCW TCW TOW TOW TWDR TWDR TTCL Open Window Time Watchdog Reset Pulse TCL Input Pulse Width 1 Load 10 k, 50 pF REXT = 123 k 1% REXT = 123 k 1% 90 90 REXT = 123 k 1% 72 REXT = 123 k 1% 36 REXT = 123 k 1% ms ns 150 Table 4 Timing Waveforms Watchdog Timeout Period TWD = TPOR TCW - closed window Watchdog timer reset Condition: REXT = 123 k + OWP + 20% - OWP - 20% TOW - open window t [ms] 80 100 120 Fig. 3 Voltage Monitoring VIN VHY Conditions: VOUTPUT 3 V No timeout VREF TSEN TSEN TPOR TSEN TSEN TPOR RES Fig. 4 Fig. 4 Copyright (c) 2005, EM Microelectronic-Marin SA 4 www.emmicroelectronic.com R A6250 Timer Reaction Fig. 5 Combined Voltage and Timer Reaction Fig. 6 Block Diagram INPUT Voltage Regulator OUTPUT Enable Logic EN Reset Control RES Voltage Reference Voltage Reference VIN R VREF Comparator - Open drain output RES + Current Controlled Oscillator Timer TCL Fig. 7 Copyright (c) 2005, EM Microelectronic-Marin SA 5 www.emmicroelectronic.com R A6250 Pin Description Pin 2 Name 3 RES 4 5 12 13 14 15 TCL VSS INPUT OUTPUT R VIN EN Function Push-pull active low enable output Open drain active low reset output. RES must be pulled up to VOUTPUT even if unused Watchdog timer clear input signal GND terminal Voltage regulator input Voltage regulator output REXT input for RC oscillator tuning Voltage comparator input Table 5 Functional Description Voltage Regulator The A6250 has a 5 V 2%, 250 mA, low dropout voltage regulator. The low supply current (typ.155 A) makes the A6250 particularly suited to automotive systems then remain energized 24 hours a day. The input voltage range is 2.3 V to 40 V for operation and the input protection includes both reverse battery (20 V below ground) and load dump (positive transients up to 60 V). There is no reverse current flow from the OUTPUT to the INPUT when the INPUT equals VSS. This feature is important for systems which need to implement (with capacitance) a minimum power supply hold-up time in the event of power failure. To achieve good load regulation a 22 F capacitor (or greater) is needed on the INPUT (see Fig. 8). Tantalum or aluminium electrolytics are adequate for the 22 F capacitor; film types will work but are relatively expensive. Many aluminium electrolytics have electrolytes that freeze at about -30 C, so tantalums are recommended for operation below -25 C. The important parameters of the 22 F capacitor are an effective series resistance of 5 and a resonant frequency above 500 kHz. A 10 F capacitor (or greater) and a 100 nF capacitor are required on the OUTPUT to prevent oscillations due to instability. The specification of the 10 F capacitor is as per the 22 F capacitor on the INPUT (see previous paragraph). The A6250 will remain stable and in regulation with no external load and the dropout voltage is typically constant as the input voltage fall to below its minimum level (see Table 2). These features are especially important in CMOS RAM keep-alive applications. resistance for a single pulse is much lower than the continuous value. VIN Monitoring The power-on reset and the power-down reset are generated as a response to the external voltage level applied on the VIN input. The external voltage level is typically obtained from a voltage divider as shown on Fig. 8. The user uses the external voltage divider to set the desired threshold level for power-on reset and power-down reset in his system. The internal comparator reference voltage is typically 1.52 V. At power-up the reset output ( RES ) is held low (see Fig. 4). After INPUT reaches 3.36 V (and so OUTPUT reaches at least 3 V) and VIN becomes greater than VREF, the RES output is held low for an additional power-on-reset (POR) delay which is equal to the watchdog time TWD (typically 100 ms with an external resistor of 123 k connected at R pin). The POR delay prevents repeated toggling of RES even if VIN and the INPUT voltage drops out and recovers. The POR delay allows the microprocessor's crystal oscillator time to start and stabilize and ensures correct recognition of the reset signal to the microprocessor. The RES output goes active low generating the powerdown reset whenever VIN falls below VREF. The sensitivity or reaction time of the internal comparator to the vol-tage level on VIN is typically 5 s. Timer Programming The on-chip oscillator with an external resistor REXT connected between the R pin and VSS (see Fig. 8) allows the user to adjust the power-on reset (POR) delay, watchdog time TWD and with this also the closed and open time windows as well as the watchdog reset pulse width (TWD/40). With REXT = 123 k typical values are: -Power-on reset delay: -Watchdog time: -Closed window: -Open window: -Watchdog reset: TPOR is 100 ms TWD is 100 ms TCW is 80 ms TOW is 40 ms TWDR is 2.5 ms Note the current consumption increases as the frequency increases. Care must be taken not to exceed the maximum junction temperature (+ 125 C). The power dissipation within the A6250 is given by the formula: PTOTAL = (VINPUT - VOUTPUT) * IOUTPUT + (VINPUT) * ISS The maximum continuous power dissipation at a given temperature can be calculated using the formula: PMAX = ( 125 C - TA) / Rth(j-a) where Rth(j-a) is the thermal resistance from the junction to the ambient and is specified in Table 2. Note the Rth(j-a) given in Table 2 assumes that the package is soldered to a PCB. The above formula for maximum power dissipation assumes a constant load (ie.100 s). The transient thermal Copyright (c) 2005, EM Microelectronic-Marin SA 6 www.emmicroelectronic.com R A6250 Watchdog Timeout Period Description The watchdog timeout period is divided into two parts, a "closed" window and an "open" window (see Fig. 3) and is defined by two parameters, TWD and the Open Window Percentage (OWP). Related to curves (Fig. 10 to Fig. 20), especially Fig. 19 and Fig. 20, the relation between TWD and REXT could easily be defined. Let us take an example describing the variations due to production and temperature: 1. Choice, TWD = 26 ms. The closed window starts just after the watchdog timer resets and is defined by TCW = TWD - OWP(TWD). 2. Related to Fig. 20, the coefficient (TWD to REXT) is 1.125 where REXT is in k and TWD in ms. The open window starts after the closed time window finishes and lasts till TWD + OWP(TWD).The open window time is defined by TOW = 2 x OWP (TWD) 3. REXT (typ.) = 26 x 1.155 = 30.0 k. 4. The ratio between TWD = 26 ms and the ( TCL period) = 25.4 ms is 0.975. 26 ms at +25C a) b) (26 - 10% = 23.4 ms) Then the relation over the production and the full temperature range is, (26 + 10% = 28.6 ms) a) TCL period = 0.975 x TWD 0.975 x REXT or 0.975 x REXT TCL period = , as typical value. 1.155 (28.6 + 5% = 30.0 ms) b) (23.4 - 5% = 22.2 ms) a) 10% while PRODUCTION value unknown for the customer when REXT 123 k. min.: (30.0 - 20% = 24.0 ms) max.: (22.2 + 20% = 26.7 ms) Typical TCL period of (24.0 + 26.7) / 2 = 25.4 ms b) 5% while operating TEMPERATURE range -40 C TJ +125 C. For example if TWD = 100 ms (actual value) and OWP = 20% this means the closed window lasts during first the 80 ms (TCW = 80 ms = 100ms - 0.2 (100 ms)) and the open window the next 40 ms (TOW = 2 x 0.2 (100 ms) = 40 ms). The watchdog can be serviced between 80 ms and 120 ms after the timer reset. However as the time base is 10% accurate, software must use the following calculation as the limits for servicing signal TCL during the open window: 5. If you fixed a TCL period = 26 ms 26 x 1.155 REXT = = 30.8 k. 0.975 TWD versus VOUTPUT at TJ = +25 C TWD versus R at TJ = +25 C If during your production the TWD time can be measured at TJ = + 25 C and the C can adjust the TCL period, then the TCL period range will be much larger for the full operating temperature. R = 10 M 10'000 10'000 R = 1 M 1000 R = 100 k TWD [ms] TWD [ms] 1000 100 100 R = 10 k 10 10 3V 4.8 V 5V 5.2 V 6V R = 1 k 1 0.1 1 3 4 5 6 VOUTPUT [V] 100 10 1000 10'000 R[k] Fig. 8 Copyright (c) 2005, EM Microelectronic-Marin SA 1 Fig. 9 7 www.emmicroelectronic.com R A6250 TWD versus R at TJ = +25 C 10'000 1000 TWD [ms] 100 3V 10 4.8 V 5V 5.2 V 6V 1 0.1 1 100 10 1000 10'000 R[k] Fig. 10 Copyright (c) 2005, EM Microelectronic-Marin SA 8 www.emmicroelectronic.com R A6250 TWD versus VOUTPUT at TJ = +85 C R = 10 M 10'000 10'000 R = 1 M 1000 1000 R = 100 k TWD [ms] TWD [ms] TWD versus R at TJ = +85 C 100 100 R = 10 k 10 10 3V 4.8 V 5V 5.2 V 6V R = 1 k 1 0.1 1 3 4 5 6 1 10 100 1000 10'000 R[k] VOUTPUT [V] Fig. 11 TWD versus VOUTPUT at TJ = -40 C Fig. 12 TWD versus R at TJ = -40 C R = 10 M 10'000 10'000 R = 1 M 1000 100 R = 100 k TWD [ms] TWD [ms] 1000 100 10 R = 10 k 10 1 3V 4.8 V 5V 5.2 V 6V R = 1 k 1 3 4 5 0.1 6 0.1 10 100 1000 10'000 R[k] VOUTPUT [V] Fig. 13 Copyright (c) 2005, EM Microelectronic-Marin SA 1 Fig. 14 9 www.emmicroelectronic.com R A6250 TWD versus temperature at 5 V T WD versus R at 5 V R = 10 M 10'000 10'000 R = 1 M 1000 R = 100 k TWD [ms] TWD [ms] 1000 100 100 R = 10 k 10 -40 C -20 C +25 C +70 C +85 C 10 R = 1 k 1 -40 1 -20 0 +20 +40 +60 TJ [C] +80 0.1 1 10 100 1000 10'000 R[k] Fig. 15 Fig. 16 Maximum OUTPUT Current versus INPUT Voltage Fig. 17 Copyright (c) 2005, EM Microelectronic-Marin SA 10 www.emmicroelectronic.com R A6250 POR delay. A TCL pulse will have no effect until this power-on-reset delay is completed. After the POR delay has elapsed, RES goes inactive and the watchdog timer starts acting. If no TCL pulse occurs, RES goes active low for a short time TWDR after each closed and open window period. A TCL pulse coming during the open window clears the watchdog timer. When the TCL pulse occurs too early (during the closed window), RES goes active and a new timeout sequence starts. A voltage drop below the VREF level for longer than typically 5s overrides the timer and immediately forces RES active and EN inactive. Any further TCL pulse has no effect until the next power-up sequence has completed. Timer Clearing and RES Action The watchdog circuit monitors the activity of the processor. If the user's software does not send a pulse to the TCL input within the programmed open window timeout period a short watchdog RES pulse is generated which is equal to TWD /40 = 2.5 ms typically (see Fig. 5). With the open window constraint new security is added to conventional watchdogs by monitoring both software cycle time and execution. Should software clear the watchdog too quickly (incorrect cycle time) or too slowly (incorrect execution) it will cause the system to be reset. If software is stuck in a loop which includes the routine to clear the watchdog then a conventional watchdog would not make a system reset even though software is malfunctioning; the A6250 would make a system reset because the watchdog would be cleared too quickly. If no TCL signal is applied before the closed and open windows expire, RES will start to generate square waves of period (TCW + TOW + TWDR). The watchdog will remain in this state until the next TCL falling edge appears during an open window, or until a fresh power-up sequence. The system enable output, EN , can be used to prevent critical control functions being activated in the event of the system going into this failure mode (see section "Enable- EN Output"). The RES output must be pulled up to VOUTPUT even if the output is not used by the system (see Fig 8). Enable - EN Output The system enable output, EN ,is inactive always when RES is active and remains inactive after a RES pulse until the watchdog is serviced correctly 3 consecutive times (ie. the TCL pulse must come in the open window). After three consecutive services of the watchdog with TCL during the open window, the EN goes active low. A malfunctioning system would be repeatedly reset by the watchdog. In a conventional system critical motor controls could be energized each time reset goes inactive (time allowed for the system to restart) and in this way the electrical motors driven by the system could function out of control. The A6250 prevents the above failure mode by using the EN output to disable the motor controls until software has successfully cleared the watchdog three times (ie. the system has correctly re-started after a reset condition). Combined Voltage and Timer Action The combination of voltage and timer actions is illustrated by the sequence of events shown in Fig. 6. On power-up, when the voltage at VIN reaches VREF, the power-on-reset, POR, delay is initialized and holds RES active for the time of the Typical Application Regulated voltage Unregulated voltage INPUT OUTPUT 100 nF + 10 F 22 F + R A6250 R1 Address decoder 100 k VIN 100 k Microprocessor TCL VSS RES EN RES R2 EN Motor Controls GND Fig. 18 Copyright (c) 2005, EM Microelectronic-Marin SA 11 www.emmicroelectronic.com R A6250 TWD Coefficient versus REXT at TJ = + 25 C 0.96 0.94 0.92 TWD Coefficient 0.90 0.88 0.86 0.84 0.82 0.80 0.78 0.76 10 1000 100 REXT [k] Fig. 19 REXT Coefficient versus TWD at TJ = + 25 C 1.30 1.28 1.26 REXT Coefficient 1.24 1.22 1.20 1.18 1.16 1.14 1.12 1.10 1.08 1.06 1.04 10 100 1000 TWD [ms] Fig. 20 Copyright (c) 2005, EM Microelectronic-Marin SA 12 www.emmicroelectronic.com R A6250 Package and Ordering Information Dimensions of PSOP2-16 Package Fig. 21 Dual Layer PCB Fig. 22 Ordering Information When ordering, please specify the complete part number. Part Number Package Delivery Form A6250V1PS16B 16-pin PSOP2 Tape & Reel Package Marking (first line) A62500116W EM Microelectronic-Marin SA (EM) makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in EM's General Terms of Sale located on the Company's web site. EM assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of EM are granted in connection with the sale of EM products, expressly or by implications. EM's products are not authorized for use as components in life support devices or systems. (c) EM Microelectronic-Marin SA, 01/05, Rev. E Copyright (c) 2005, EM Microelectronic-Marin SA 13 www.emmicroelectronic.com