LM2662, LM2663 www.ti.com SNVS002D - JANUARY 1999 - REVISED MAY 2013 LM2662/LM2663 Switched Capacitor Voltage Converter Check for Samples: LM2662, LM2663 FEATURES DESCRIPTION * * * * * The LM2662/LM2663 CMOS charge-pump voltage converter inverts a positive voltage in the range of 1.5V to 5.5V to the corresponding negative voltage. The LM2662/LM2663 uses two low cost capacitors to provide 200 mA of output current without the cost, size, and EMI related to inductor based converters. With an operating current of only 300 A and operating efficiency greater than 90% at most loads, the LM2662/LM2663 provides ideal performance for battery powered systems. The LM2662/LM2663 may also be used as a positive voltage doubler. 1 2 * Inverts or Doubles Input Supply Voltage 8-Pin SOIC Package 3.5 Typical Output Resistance 86% Typical Conversion Efficiency at 200 mA (LM2662) Selectable Oscillator Frequency: 20 kHz/150 kHz (LM2663) Low Current Shutdown Mode APPLICATIONS * * * * * * Laptop computers Cellular phones Medical instruments Operational amplifier power supplies Interface power supplies Handheld instruments The oscillator frequency can be lowered by adding an external capacitor to the OSC pin. Also, the OSC pin may be used to drive the LM2662/LM2663 with an external clock. For LM2662, a frequency control (FC) pin selects the oscillator frequency of 20 kHz or 150 kHz. For LM2663, an external shutdown (SD) pin replaces the FC pin. The SD pin can be used to disable the device and reduce the quiescent current to 10 A. The oscillator frequency for LM2663 is 150 kHz. Basic Application Circuits Voltage Inverter Positive Voltage Doubler Splitting VIN in Half 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright (c) 1999-2013, Texas Instruments Incorporated LM2662, LM2663 SNVS002D - JANUARY 1999 - REVISED MAY 2013 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) Supply Voltage (V+ to GND, or GND to OUT) 6V (OUT - 0.3V) to (GND + 3V) LV The least negative of (OUT - 0.3V) or (V+ - 6V) to (V+ + 0.3V) FC, OSC, SD V+ and OUT Continuous Output Current 250 mA Output Short-Circuit Duration to GND (3) Power Dissipation (TA = 25C) 1 sec. (4) 735 mW TJ Max (4) 150C JA (4) 170C/W Operating Ambient Temperature Range -40C to +85C Operating Junction Temperature Range -40C to +105C Storage Temperature Range -65C to +150C Lead Temperature (Soldering, 10 seconds) 300C ESD Rating (1) (2) (3) (4) 2 2 kV Absolute maximum ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device beyond its rated operating conditions. If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and specifications. OUT may be shorted to GND for one second without damage. However, shorting OUT to V+ may damage the device and should be avoided. Also, for temperatures above 85C, OUT must not be shorted to GND or V+, or device may be damaged. The maximum allowable power dissipation is calculated by using PDMax = (TJMax - TA)/JA, where TJMax is the maximum junction temperature, TA is the ambient temperature, and JA is the junction-to-ambient thermal resistance of the specified package. Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 LM2662, LM2663 www.ti.com SNVS002D - JANUARY 1999 - REVISED MAY 2013 Electrical Characteristics Limits in standard typeface are for TJ = 25C, and limits in boldface type apply over the full Operating Junction Temperature Range. Unless otherwise specified: V+ = 5V, FC = Open, C1 = C2 = 47 F. (1) Symbol V+ Parameter Supply Voltage IQ RL = 1k Supply Current Condition Min Inverter, LV = Open 3.5 5.5 Inverter, LV = GND 1.5 5.5 Doubler, LV = OUT 2.5 5.5 No Load FC = V+ (LM2662) LV = Open SD = Ground (LM2663) FC = Open ISD Shutdown Supply Current (LM2663) VSD Shutdown Pin Input Voltage (LM2663) Typ 1.3 4 0.3 0.8 Output Current ROUT Output Resistance (3) Shutdown Mode 2.0 fOSC Oscillator Frequency IOSC OSC = Open PEFF OSC = Open OSC Input Current FC = Open 7 20 FC = V+ 55 150 FC = Open 3.5 10 FC = V+ 27.5 75 FC = Open 2 FC = V+ 10 90 IL = 200 mA to GND VOEFF (1) (2) (3) (4) (5) A Voltage Conversion Efficiency V mA 3.5 RL (500) between V+ and OUT Power Efficiency mA (2) 200 Switching Frequency (5) fSW V 0.3 IL = 200 mA (4) Units 10 Normal Operation IL Max 7 kHz kHz 96 86 No Load 99 99.96 A % % In the test circuit, capacitors C1 and C2 are 47 F, 0.2 maximum ESR capacitors. Capacitors with higher ESR will increase output resistance, reduce output voltage and efficiency. In doubling mode, when Vout > 5V, minimum input high for shutdown equals Vout - 3V. Specified output resistance includes internal switch resistance and capacitor ESR. For LM2663, the oscillator frequency is 150 kHz. The output switches operate at one half of the oscillator frequency, fOSC = 2fSW. Test Circuits Figure 1. LM2662 and LM2663 Test Circuits Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 3 LM2662, LM2663 SNVS002D - JANUARY 1999 - REVISED MAY 2013 www.ti.com Typical Performance Characteristics (Circuit of Figure 1) 4 Supply Current vs Supply Voltage Supply Current vs Oscillator Frequency Figure 2. Figure 3. Output Source Resistance vs Supply Voltage Output Source Resistance vs Temperature Figure 4. Figure 5. Output Source Resistance vs Temperature Efficiency vs Load Current Figure 6. Figure 7. Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 LM2662, LM2663 www.ti.com SNVS002D - JANUARY 1999 - REVISED MAY 2013 Typical Performance Characteristics (continued) (Circuit of Figure 1) Output Voltage Drop vs Load Current Efficiency vs Oscillator Frequency Figure 8. Figure 9. Output Voltage vs Oscillator Frequency Oscillator Frequency vs External Capacitance Figure 10. Figure 11. Oscillator Frequency vs Supply Voltage Oscillator Frequency vs Supply Voltage Figure 12. Figure 13. Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 5 LM2662, LM2663 SNVS002D - JANUARY 1999 - REVISED MAY 2013 www.ti.com Typical Performance Characteristics (continued) (Circuit of Figure 1) Oscillator Frequency vs Temperatur Oscillator Frequency vs Temperature Figure 14. Figure 15. Shutdown Supply Current vs Temperature (LM2663 Only) Figure 16. CONNECTION DIAGRAMS 8-Pin SOIC Package Figure 17. D Package Top View 6 Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 LM2662, LM2663 www.ti.com SNVS002D - JANUARY 1999 - REVISED MAY 2013 Pin Descriptions Pin Name 1 FC Function Voltage Inverter (LM2662) Frequency control for internal oscillator: Voltage Doubler Same as inverter. FC = open, fOSC = 20 kHz (typ); FC = V+, fOSC = 150 kHz (typ); FC has no effect when OSC pin is driven externally. 1 SD (LM2663) Shutdown control pin, tie this pin to the ground in normal operation. Same as inverter. 2 CAP+ Connect this pin to the positive terminal of charge-pump capacitor. Same as inverter. 3 GND Power supply ground input. Power supply positive voltage input. 4 CAP- Connect this pin to the negative terminal of charge-pump capacitor. Same as inverter. 5 OUT Negative voltage output. Power supply ground input. 6 LV Low-voltage operation input. Tie LV to GND when input voltage is less than 3.5V. Above 3.5V, LV can be connected to GND or left open. When driving OSC with an external clock, LV must be connected to GND. LV must be tied to OUT. 7 OSC 8 V+ Oscillator control input. OSC is connected to an internal Same as inverter except that OSC cannot be driven by 15 pF capacitor. An external capacitor can be connected an external clock. to slow the oscillator. Also, an external clock can be used to drive OSC. Power supply positive voltage input. Positive voltage output. Circuit Description The LM2662/LM2663 contains four large CMOS switches which are switched in a sequence to invert the input supply voltage. Energy transfer and storage are provided by external capacitors. Figure 18 illustrates the voltage conversion scheme. When S1 and S3 are closed, C1 charges to the supply voltage V+. During this time interval switches S2 and S4 are open. In the second time interval, S1 and S3 are open and S2 and S4 are closed, C1 is charging C2. After a number of cycles, the voltage across C2 will be pumped to V+. Since the anode of C2 is connected to ground, the output at the cathode of C2 equals -(V+) assuming no load on C2, no loss in the switches, and no ESR in the capacitors. In reality, the charge transfer efficiency depends on the switching frequency, the on-resistance of the switches, and the ESR of the capacitors. Figure 18. Voltage Inverting Principle Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 7 LM2662, LM2663 SNVS002D - JANUARY 1999 - REVISED MAY 2013 www.ti.com APPLICATION INFORMATION SIMPLE NEGATIVE VOLTAGE CONVERTER The main application of LM2662/LM2663 is to generate a negative supply voltage. The voltage inverter circuit uses only two external capacitors as shown in the Basic Application Circuits. The range of the input supply voltage is 1.5V to 5.5V. For a supply voltage less than 3.5V, the LV pin must be connected to ground to bypass the internal regulator circuitry. This gives the best performance in low voltage applications. If the supply voltage is greater than 3.5V, LV may be connected to ground or left open. The choice of leaving LV open simplifies the direct substitution of the LM2662/LM2663 for the LMC7660 Switched Capacitor Voltage Converter. The output characteristics of this circuit can be approximated by an ideal voltage source in series with a resistor. The voltage source equals -(V+). The output resistance Rout is a function of the ON resistance of the internal MOS switches, the oscillator frequency, and the capacitance and ESR of C1 and C2. Since the switching current charging and discharging C1 is approximately twice as the output current, the effect of the ESR of the pumping capacitor C1 is multiplied by four in the output resistance. The output capacitor C2 is charging and discharging at a current approximately equal to the output current, therefore, its ESR only counts once in the output resistance. A good approximation is: (1) where RSW is the sum of the ON resistance of the internal MOS switches shown in Figure 18. High value, low ESR capacitors will reduce the output resistance. Instead of increasing the capacitance, the oscillator frequency can be increased to reduce the 2/(fosc x C1) term. Once this term is trivial compared with RSW and ESRs, further increasing in oscillator frequency and capacitance will become ineffective. The peak-to-peak output voltage ripple is determined by the oscillator frequency, and the capacitance and ESR of the output capacitor C2: (2) Again, using a low ESR capacitor will result in lower ripple. POSITIVE VOLTAGE DOUBLER The LM2662/LM2663 can operate as a positive voltage doubler (as shown in the Basic Application Circuits). The doubling function is achieved by reversing some of the connections to the device. The input voltage is applied to the GND pin with an allowable voltage from 2.5V to 5.5V. The V+ pin is used as the output. The LV pin and OUT pin must be connected to ground. The OSC pin can not be driven by an external clock in this operation mode. The unloaded output voltage is twice of the input voltage and is not reduced by the diode D1's forward drop. The Schottky diode D1 is only needed for start-up. The internal oscillator circuit uses the V+ pin and the LV pin (connected to ground in the voltage doubler circuit) as its power rails. Voltage across V+ and LV must be larger than 1.5V to insure the operation of the oscillator. During start-up, D1 is used to charge up the voltage at V+ pin to start the oscillator; also, it protects the device from turning-on its own parasitic diode and potentially latchingup. Therefore, the Schottky diode D1 should have enough current carrying capability to charge the output capacitor at start-up, as well as a low forward voltage to prevent the internal parasitic diode from turning-on. A Schottky diode like 1N5817 can be used for most applications. If the input voltage ramp is less than 10V/ms, a smaller Schottky diode like MBR0520LT1 can be used to reduce the circuit size. SPLIT V+ IN HALF Another interesting application shown in the Basic Application Circuits is using the LM2662/LM2663 as a precision voltage divider. Since the off-voltage across each switch equals VIN/2, the input voltage can be raised to +11V. CHANGING OSCILLATOR FREQUENCY For the LM2662, the internal oscillator frequency can be selected using the Frequency Control (FC) pin. When FC is open, the oscillator frequency is 20 kHz; when FC is connected to V+, the frequency increases to 150 kHz. A higher oscillator frequency allows smaller capacitors to be used for equivalent output resistance and ripple, but increases the typical supply current from 0.3 mA to 1.3 mA. 8 Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 LM2662, LM2663 www.ti.com SNVS002D - JANUARY 1999 - REVISED MAY 2013 The oscillator frequency can be lowered by adding an external capacitor between OSC and GND (See typical performance characteristics). Also, in the inverter mode, an external clock that swings within 100 mV of V+ and GND can be used to drive OSC. Any CMOS logic gate is suitable for driving OSC. LV must be grounded when driving OSC. The maximum external clock frequency is limited to 150 kHz. The switching frequency of the converter (also called the charge pump frequency) is half of the oscillator frequency. NOTE: OSC cannot be driven by an external clock in the voltage-doubling mode. Table 1. LM2662 Oscillator Frequency Selection FC OSC Oscillator Open Open 20 kHz V+ Open 150 kHz Open or V+ External Capacitor See Typical Performance Characteristics N/A External Clock (inverter mode only) External Clock Frequency Table 2. LM2663 Oscillator Frequency Selection OSC Oscillator Open 150 kHz External Capacitor See Typical Performance Characteristics External Clock (inverter mode only) External Clock Frequency SHUTDOWN MODE For the LM2663, a shutdown (SD) pin is available to disable the device and reduce the quiescent current to 10 A. Applying a voltage greater than 2V to the SD pin will bring the device into shutdown mode. While in normal operating mode, the SD pin is connected to ground. CAPACITOR SELECTION As discussed in the Simple Negative Voltage Converter section, the output resistance and ripple voltage are dependent on the capacitance and ESR values of the external capacitors. The output voltage drop is the load current times the output resistance, and the power efficiency is (3) Where IQ(V+) is the quiescent power loss of the IC device, and IL2ROUT is the conversion loss associated with the switch on-resistance, the two external capacitors and their ESRs. Low ESR capacitors (Table 3) are recommended for both capacitors to maximize efficiency, reduce the output voltage drop and voltage ripple. For convenience, C1 and C2 are usually chosen to be the same. The output resistance varies with the oscillator frequency and the capacitors. In Figure 19, the output resistance vs. oscillator frequency curves are drawn for four difference capacitor values. At very low frequency range, capacitance plays the most important role in determining the output resistance. Once the frequency is increased to some point (such as 100 kHz for the 47 F capacitors), the output resistance is dominated by the ON resistance of the internal switches and the ESRs of the external capacitors. A low value, smaller size capacitor usually has a higher ESR compared with a bigger size capacitor of the same type. Ceramic capacitors can be chosen for their lower ESR. As shown in Figure 19, in higher frequency range, the output resistance using the 10 F ceramic capacitors is close to these using higher value tantalum capacitors. Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 9 LM2662, LM2663 SNVS002D - JANUARY 1999 - REVISED MAY 2013 www.ti.com Figure 19. Output Source Resistance vs Oscillator Frequency Table 3. Low ESR Capacitor Manufacturers Manufacturer Phone Capacitor Type Nichicon Corp. (708)-843-7500 PL, PF series, through-hole aluminum electrolytic AVX Corp. (803)-448-9411 TPS series, surface-mount tantalum Sprague (207)-324-4140 593D, 594D, 595D series, surface-mount tantalum Sanyo (619)-661-6835 OS-CON series, through-hole aluminum electrolytic Murata (800)-831-9172 Ceramic chip capacitors Taiyo Yuden (800)-348-2496 Ceramic chip capacitors Tokin (408)-432-8020 Ceramic chip capacitors Other Applications PARALLELING DEVICES Any number of LM2662s (or LM2663s) can be paralleled to reduce the output resistance. Each device must have its own pumping capacitor C1, while only one output capacitor Cout is needed as shown in Figure 20. The composite output resistance is: (4) Figure 20. Lowering Output Resistance by Paralleling Devices 10 Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 LM2662, LM2663 www.ti.com SNVS002D - JANUARY 1999 - REVISED MAY 2013 CASCADING DEVICES Cascading the LM2662s (or LM2663s) is an easy way to produce a greater negative voltage (as shown in Figure 21). If n is the integer representing the number of devices cascaded, the unloaded output voltage Vout is (-nVin). The effective output resistance is equal to the weighted sum of each individual device: (5) A three-stage cascade circuit shown in Figure 22 generates -3Vin, from Vin. Cascading is also possible when devices are operating in doubling mode. In Figure 23, two devices are cascaded to generate 3Vin. An example of using the circuit in Figure 22 or Figure 23 is generating +15V or -15V from a +5V input. Note that, the number of n is practically limited since the increasing of n significantly reduces the efficiency and increases the output resistance and output voltage ripple. Figure 21. Increasing Output Voltage by Cascading Devices Figure 22. Generating -3Vin from +Vin Figure 23. Generating +3Vin from +Vin Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 11 LM2662, LM2663 SNVS002D - JANUARY 1999 - REVISED MAY 2013 www.ti.com REGULATING Vout It is possible to regulate the output of the LM2662/LM2663 by use of a low dropout regulator (such as LP2986). The whole converter is depicted in Figure 24. This converter can give a regulated output from -1.5V to -5.5V by choosing the proper resistor ratio: (6) where, Vref = 1.23V The error flag on pin 7 of the LP2986 goes low when the regulated output at pin 5 drops by about 5% below nominal. The LP2986 can be shutdown by taking pin 8 low. The less than 1 A quiescent current in the shutdown mode is favorable for battery powered applications. Figure 24. Combining LM2662/LM2663 with LP2986 to Make a Negative Adjustable Regulator Also, as shown in Figure 25 by operating the LM2662/LM2663 in voltage doubling mode and adding a low dropout regulator (such as LP2986) at the output, we can get +5V output from an input as low as +3.3V. Figure 25. Generating +5V from +3.3V Input Voltage 12 Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 LM2662, LM2663 www.ti.com SNVS002D - JANUARY 1999 - REVISED MAY 2013 REVISION HISTORY Changes from Revision C (May 2013) to Revision D * Page Changed layout of National Data Sheet to TI format .......................................................................................................... 12 Submit Documentation Feedback Copyright (c) 1999-2013, Texas Instruments Incorporated Product Folder Links: LM2662 LM2663 13 PACKAGE OPTION ADDENDUM www.ti.com 1-Nov-2013 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (C) Device Marking (4/5) LM2662M NRND SOIC D 8 95 TBD Call TI Call TI -40 to 85 LM26 62M LM2662M/NOPB ACTIVE SOIC D 8 95 Green (RoHS & no Sb/Br) SN | CU SN Level-1-260C-UNLIM -40 to 85 LM26 62M LM2662MX/NOPB ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) SN | CU SN Level-1-260C-UNLIM -40 to 85 LM26 62M LM2663M NRND SOIC D 8 95 TBD Call TI Call TI -40 to 85 LM26 63M LM2663M/NOPB ACTIVE SOIC D 8 95 Green (RoHS & no Sb/Br) SN | CU SN Level-1-260C-UNLIM -40 to 85 LM26 63M LM2663MX NRND SOIC D 8 2500 TBD Call TI Call TI -40 to 85 LM26 63M LM2663MX/NOPB ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) SN | CU SN Level-1-260C-UNLIM -40 to 85 LM26 63M (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. 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Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant LM2662MX/NOPB SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LM2663MX SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LM2663MX/NOPB SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM2662MX/NOPB SOIC D 8 2500 367.0 367.0 35.0 LM2663MX SOIC D 8 2500 367.0 367.0 35.0 LM2663MX/NOPB SOIC D 8 2500 367.0 367.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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