NCP4371 Product Preview Qualcomm Quick Charget 3.0 HVDCP Controller NCP4371 is a USB secondary side fast−charging controller, supporting Qualcomm Quick Charge 3.0 (QC 3.0) High Voltage Dedicated Charging Port (HVDCP) Class A and Class B specification. NCP4371 allows for selection of the output voltage of an AC−DC USB adapter based on commands from the Portable Device (PD) being powered. Selecting a higher charging voltage will reduce the charging current for a given power level resulting in reduced IR drops and increased system efficiency. Another advantage of QC3.0 is a decreased battery charging time and a reduced PD system cost thanks to the ability to select an optimum charging voltage. This eliminates the need for costly DC−DC converters within the PD. The USB−bus voltage can be controlled in discreet steps from 3.6 V up to 20 V. The output current is limited not to exceed maximum allowable power level. The NCP4371 resides at the secondary (isolated) side of the adapter. It includes voltage and current feedback regulation eliminating the need for a shunt regulator such as TL431. The NCP4371 provides charging current limits down to VBUS = 2.2 V protecting the portable device from excessive currents in case of a soft short−circuit condition. The NCP4371 integrates a safe−discharge circuitry to quickly and reliably discharge output capacitors in case the USB cable is unplugged or connected to a 5 V only USB port. Features • Supports Qualcomm Quick Charge 3.0 HVDCP Class A/B • Output Voltage Can be Configured in Discreet Steps from ♦ • • • • • • • • • • Class A: 3.6 V up to 12 V ♦ Class B: 3.6 V up to 20 V Compatible with USB Battery Charging Specification Revision 1.2 (USB BC1.2) Constant Voltage and Constant Current Regulation Soft Short−Circuit Current Limitation Down to VBUS = 2.2 V Removes a Need for the Secondary Side Shunt Regulator such as TL431 Output Capacitor Safe−Discharge Circuitry at Cable Unplug Fast Dynamic Response Built−in Power Limiting Function Low Supply Current Wide Operating Input Voltage Range: 2.2 V to 28 V This is Pb−free Device www.onsemi.com 8 1 SOIC−8 D SUFFIX CASE 751 MARKING DIAGRAM 8 XXXXX ALYWG G 1 XXXXX A L Y W G = Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package PIN CONNECTIONS DISCHARGE VCC DRIVE GND ISNS D− COMP D+ (Top View) ORDERING INFORMATION See detailed ordering, marking and shipping information in the package dimensions section on page 12 of this data sheet. Typical Applications • Fast Charging AC/DC Adapters for Smart Phones, Tablets and Other Portable Devices This document contains information on a product under development. ON Semiconductor reserves the right to change or discontinue this product without notice. © Semiconductor Components Industries, LLC, 2016 March, 2016 − Rev. P1 1 Publication Order Number: NCP4371/D VCC VIN R3 ~ C2 www.onsemi.com 2 Flyback Controller VCC GND ZCD HV VCC C3 FB CS DRV R2 R1 D1 C1 R_CS T1 D4 D3 D2 COUT C4 OPTO R4 Figure 1. Typical Application Schematic NCP4371 GND VCC C5 D+ COMP ISNS DISCHARGE D− DRIVE R6 C6 R5 R7 GND D− VBUS D+ USB NCP4371 R_SENSE R_DIS NCP4371 VCC DISCHARGE IDISCHARGE VCC management Power RESET VDDD SW VDDA Discharge_en VCC(UVLO) DRIVE GND RDM_DWN Sink only Current Regulation Bandgap VREFC D− VREFV Pwr. Limit VCC HVDCP Logic OTA Demux ISNS RVSNS_UP Sink only COMP VREFV RVSNS_DWN D+ VREFC OTA Voltage Regulation RDAT_LKG Figure 2. Simplified Block Diagram Table 1. PIN FUNCTION DESCRIPTION Pin No. Pin Name Description 1 DISCHARGE This output is used to safely discharge VBUS output capacitors when an unplug event is detected 2 DRIVE Output of current sinking OTA amplifier or amplifiers driving feedback optocoupler’s LED. Connect here compensation network (networks) as well. 3 ISNS Current sensing input for output current regulation, connect it to shunt resistor in ground branch. 4 COMP Compensation pin of output voltage regulation, connected to a feedback compensation network. 5 D+ USB D+ Data Line Input 6 D− USB D− Data Line Input 7 GND Ground 8 VCC Supply voltage pin www.onsemi.com 3 NCP4371 Table 2. MAXIMUM RATINGS Rating Symbol Value Unit VCC −0.3 to 28.0 ±100 V mA VDISCHARGE −0.3 to VCC +500/−40 V mA VDRIVE −0.3 to VCC +100/−90 V mA VD+, VD−, VVSNS, ViSNS −0.3 to 5.5 ±100 V mA RθJ−A_SOIC8 160 °C/W TJMAX 125 °C Supply Voltage DISCHARGE pin DRIVE pin D+, D−, VSNS, ISNS Input Voltage Junction to Air Thermal Resistance, SOIC8 Maximum Junction Temperature TSTG −60 to 150 °C ESD Capability, Human Body Model (Notes 1, 4) ESDHBM 6000 V ESD Capability, Machine Model (Note 1) ESDMM 200 V ESD Capability, Charged Device Model (Note 1) ESDCDM 750 V Storage Temperature Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area. 2. This device series incorporates ESD protection and is tested by the following methods: ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114) ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115) ESD Charged Device Model per JEDEC Standard JESD22−C101D Latchup Current Maximum Rating <100 mA per JEDEC standard: JESD78 with respect to max. ratings table values 3. For information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D 4. D+ vs. D− pin capability HBM 2500 V Table 3. ELECTRICAL CHARACTERISTICS −40°C ≤ TJ ≤ 125°C; VCC = 5 V; unless otherwise noted. Typical values are at TJ = +25°C. Parameter Test Conditions Symbol Min Typ Max Unit SUPPLY Minimum Operating Input Voltage VCC voltage at which current limiting OTA is enabled VCC(min) − − 2.2 V VCC HVDCP Logic Enable VCC increasing level at which the HVDCP commands are accepted VCC(ON) 2.9 3.2 3.4 V VCC HVDCP Logic Disable VCC decreasing level at which the HVDCP commands are stopped to be accepted VCC(OFF) 2.7 3.0 3.2 V 300 mA Quiescent Current ICC VOLTAGE CONTROL LOOP OTA Transconductance Sink current only Voltage Control Reference Voltage Nominal VBUS=5 V Sink Current Capability gmv − 1 − S VREFV 1.21 1.25 1.29 V ISINKV 2.0 mA Output Voltage Sense Divider Resistor, Pull−Up RVSNS_UP 66 kW Output Voltage Sense Divider Resistor, Pull−Down RVSNS_DWN 24 kW CURRENT CONTROL LOOP OTA Transconductance Sink current only Current Control Reference Voltage Current limit A reference set−point Current limit B reference set−point Current limit C reference set−point Current limit D reference set−point Current limit E reference set−point Current limit F reference set−point Current limit G reference set−point Current limit H reference set−point www.onsemi.com 4 gmc − 3 − S VREFC(A) VREFC(B) VREFC(C) VREFC(D) VREFC(E) VREFC(F) VREFC(G) VREFC(H) 10 12 18 24 29 34 40 53 14 17 22 28 33 38 44 57 18 21 26 32 37 42 48 61 mV NCP4371 Table 3. ELECTRICAL CHARACTERISTICS −40°C ≤ TJ ≤ 125°C; VCC = 5 V; unless otherwise noted. Typical values are at TJ = +25°C. Parameter Test Conditions Symbol Min Typ Max Unit ISINKC 2.0 VSEL_REF 1.8 2 Data Detect Voltage VDAT_REF 0.25 0.325 0.4 V Data Line Leakage Resistance RDAT_LKG 300 − 1500 kW D− Pull−Down Resistance RDM_DWN 14.25 19.53 24.8 kW D+ to D− Resistance During DCP Mode RDCP_DAT 45 W CURRENT CONTROL LOOP OTA Sink Current Capability mA HVDCP Output Voltage Selection Reference 2.2 V OUTPUT CAPACITOR DISCHARGER Discharge Comparator OFF Voltage VBUS_REF = 5 V, VDIS(OFF) sensed at VCC pin VDIS(OFF) VCC Discharge Current Discharge current of the internal current sink at the VCC pin IDIS(VCC) 90 mA DISCHARGE Pin Maximum Sink Current Maximum sink current of the DISCHARGE pin Minimum recommended external discharge resistor value connected from VBUS to DISCHARGE pin is RDIS>=70 W (Class A) DISCHARGE pin is RDIS>=120 W (Class B) IDIS(EXT) 150 mA 5.2 mV Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. www.onsemi.com 5 NCP4371 2.4 300 2.2 280 2.0 260 ICC (mA) VCC(min) (V) TYPICAL CHARACTERISTICS 1.8 1.6 220 1.4 −40 −25 −10 5 20 35 50 65 80 200 −40 −25 −10 95 110 125 20 35 50 65 80 95 110 125 TEMPERATURE (°C) Figure 3. VCC Minimum Operating Input Voltage, VCC(min) Figure 4. Quiescent Current, ICC 3.4 3.4 3.2 VCC(OFF) (V) VCC(ON) (V) 5 TEMPERATURE (°C) 3.6 3.2 3.0 3.0 2.8 2.8 2.6 −40 −25 −10 5 20 35 50 65 80 2.6 −40 −25 −10 95 110 125 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) Figure 5. VCC HVDCP Logic Enable, VCC(ON) Figure 6. VCC HVDCP Logic Disable, VCC(OFF) 1.5 20 1.4 18 VREFC(A) (mV) VREFV (V) 240 1.3 1.2 1.1 16 14 12 1.0 −40 −25 −10 5 20 35 50 65 80 10 −40 −25 −10 95 110 125 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) Figure 7. Voltage Control Reference Voltage, VREFV Figure 8. Current Control Reference Voltage, VREFC(A) www.onsemi.com 6 NCP4371 TYPICAL CHARACTERISTICS 2.2 0.40 0.36 VDAT_REF (V) VSEL_REF (V) 2.1 2.0 0.32 0.28 1.9 0.24 1.8 −40 −25 −10 5 20 35 50 65 80 0.20 −40 −25 −10 95 110 125 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) Figure 9. Output Voltage Selection Reference, VSEL_REF Figure 10. Data Detect Voltage, VDAT_REF 60 25 40 RDM_DWN (kW) RDCP_DAT (W) 23 20 21 19 17 5 20 35 50 65 80 15 −40 −25 −10 95 110 125 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) Figure 11. D+ to D− Resistance During DCP Mode, RDCP_DAT Figure 12. D− Pull−Down Resistance, RDM_DWN 5.8 100 5.6 90 IDIS(VCC) (mA) VDIS(OFF) (V) 0 −40 −25 −10 5.4 5.2 80 70 60 5.0 4.8 −40 −25 −10 5 20 35 50 65 80 50 −40 −25 −10 95 110 125 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) Figure 13. Discharge Comparator OFF Voltage, VDIS(OFF) Figure 14. VCC Discharge Current, IDIS(VCC) www.onsemi.com 7 NCP4371 TYPICAL CHARACTERISTICS 250 IDIS(EXT) (mA) 220 190 160 130 100 70 −40 −25 −10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) Figure 15. VCC Discharge Current, IDIS(EXT) www.onsemi.com 8 NCP4371 APPLICATION INFORMATION Continuous mode it responds to the PD requests in a Single request mode. It does not support Group request mode. The NCP4371 is designed to operate as an output voltage and current controller for USB chargers, which resides on the secondary side of the off−line adapter. It enables to accommodate the output voltage based on the request from the portable device in order to optimize the battery charge time. The NCP4371 is compatible with Qualcomm Quick Charge 3.0 HVDCP specification. The output voltage can be increased or decreased in discrete steps. The output current is limited not to exceed the maximum power limit for given output voltage level. The internal discharge switch discharges the output capacitors to a safe voltage level in a case of the cable unplug. Table 4. D+ AND D− OUTPUT VOLTAGE CODING Portable Device HVDCP Class A HVDCP Class B D+ D− Adapter Voltage Adapter Voltage 0.6 V 0.6 V 12 V 12 V 3.3 V 0.6 V 9V 9V 0.6 V 3.3 V Continuous mode Continuous mode 3.3 V 3.3 V Previous voltage 20 V 0.6 V GND 5V 5V Voltage Regulation The Voltage Regulation Path eliminates a need for a voltage shunt regulator at the secondary side of the off−line supply. The voltage on VCC pin is divided by internal resistor divider (RVSNS_UP, RVSNS_DWN) and compared with the internal precise voltage reference VREFV. The voltage difference is amplified by gmV of the transconductance amplifier. The amplifier output current is connected to the DRIVE pin. This DRIVE pin drives regulation optocoupler that provides regulation of primary side. The internal voltage reference VREFV is adjustable based on the command from the Portable Device compatible with Qualcomm Quick Charge specification. The voltage control loop compensation network shall be connected between DRIVE and COMP pins. DP_SEL_REF VSEL_REF D+ DP_DAT_REF VDAT_REF RDAT_LKG D− RDM_DWN DM_DAT_REF VDAT_REF DM_SEL_REF VSEL_REF Current Regulation The output current is sensed by the shunt resistor R_SENSE in series with the load. Voltage drop on R_SENSE is compared with internal precise voltage reference VREFC at ISNS transconductance amplifier input. Voltage difference is amplified by gmC to output current of amplifier, connected to the DRIVE pin. Figure 16. HVDCP D+ and D− Comparators HVDCP Mode – Continuous Mode The continuous mode of operation leverages the previously unused state in QC2.0. If the portable devices try and utilize this mode, it applies voltages on D+ and D− per Table 4. Assuming the HVDCP supports this mode of operation, it will glitch filter the request as it currently does, using TGLITCH_V_CHANGE. Before the portable device can begin to increment or decrement the voltage, it must wait TV_NEW_REQUEST_CONT before pulling D+ and D− high or low. Once this time has finished, the portable device now attempts to increment or decrement the voltage. To increment, the portable device sends a pulse of width TACTIVE by pulling D+ to VDP_UP and then must return D+ to VDP_SRC for TINACTIVE. The NCP4371 responds to the increment/decrement request in a single request mode, i.e. the output voltage is changed immediately with each request. For the single request, and HVDCP recognizes a rising edge on D+ for an increment, and falling edge on D− for a decrement, and glitch filters this with TGLITCH_CONT_CHANGE. After this period, it begins changing its output voltage by incrementing or decrementing in a 200 mV step. The output voltage is at its final value within TV_CONT_CHANGE_SINGLE. HVDCP Mode After power−up pins D+ and D− of NCP4371 are shorted with impedance RDCP_DAT and internal reference voltage VREFV is set to VBUS voltage 5 V. The device is in a BC1.2 compatible mode. If a portable device compatible with the Qualcomm Quick Charge specification is connected a negotiation between HVDCP and PD is executed. Once the negotiation is successful the NCP4371 opens D+ and D− short connection and D− is pulled down with a RDM_DWN. The NCP4371 enters HVDCP mode. It monitors D+ and D− inputs. Based on the specified control patterns the internal voltage reference value VREFV is adjusted in order to increase or decrease output voltage to the required value. The NCP4371 is available in Class A and Class B version. Class A allows to change the output voltage up to VBUS = 12 V. Class B allows output voltage up to 20 V. If the unplug event is detected the decoder circuitry turns−on an internal current sink, which discharges the output capacitors to a safe voltage level. If the NCP4371 is set to a www.onsemi.com 9 NCP4371 Power−On Reset VBUS = 5 V Short D+/D− open D− pull−down unplug BC done START BC over Open D+/D− D− pull−down BC Done D−initial low 5 V request 20 V request HVDCP Discrete VBUS = 20 V VBUS = 5 V 12 V request VBUS = 9 V 5 V request increment request Continuous mode request 9 V request VBUS = 12 V HVDCP Continuous VBUS = VBUS + 200 mV max. 12 V/20 V for class A/B unplug decrement request VBUS = VBUS − 200 mV min. 3.6 V Figure 17. NCP4371 State Diagram www.onsemi.com 10 NCP4371 Power Limit Once the Power limit is defined by an R_SENSE selection the user needs to define a maximum output current limit. This current limit can be given by a connector or cable maximum current rating. There are 5 current limit options available for Power Option A and 8 current limit options for Power Option B and C. Each power limit option corresponds to a particular Current Control Reference Voltage (VREFC), which limits the maximum output current for the selected R_SENSE resistor. The user has to make a selection from current limit characteristics shown in Figure 19. Each power limit curve represents a unique device option (see Table Device Options). IOUT(MAX) (A) The protocol decoder and the power limit logic will limit maximum output current to keep regulation within recommended Vout/Iout operating range. The Power Limit block adjusts VREFC voltage reference at the current regulation loop in order to limit the maximum output current. The NCP4371 is designed to give a user a high degree of freedom to optimize maximum power and current limit profile of the target application. The user can scale both – maximum output power and maximum current limit independently. The NCP4371 has two constant power curves defined – “Option A” for Class A only and “Option B” for either Class A or Class B. Power Option C shall be used for applications where constant power regulation is not required. If Power Option C is selected then power limiting curve is ignored. The applications based on Power Option C operate in “constant current regulation mode”. In order to scale the power limit curve for the given power a selection of the current sense resistor has to be done. The relation between current sense resistor and output power limit is given by the curves in Figure 18. 20 18 Rsense (mW) 16 POUT Limit Option B 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 E D C B A 15 16 17 18 19 14 20 21 22 23 24 25 P (W) Power Option A Current Limit Selection 12 POUT Limit Option A 4.4 10 H 8 15 16 17 18 19 20 21 22 23 24 IOUT(MAX) (A) 6 25 P (W) Figure 18. RSENSE vs. POUT Limit Curve The characteristics in the Figure 23 cover a range POUT = 15 – 25 W. For powers outside this interval following formula can be used for RSENSE selection: Option A (Class A only) : R SENSE + 168 [mW] P max (eq. 1) Option B (Class A & B) : R SENSE + 277 [mW] P max (eq. 2) 4.0 G 3.6 F 3.2 E 2.8 D 2.4 C 2.0 B A 1.6 1.2 0.8 15 16 17 18 19 20 21 22 23 P (W) Power Option B Current Limit Selection Figure 19. Current Limit Characteristics www.onsemi.com 11 24 25 NCP4371 Table 5. CURRENT LIMIT OPTION REFERENCE VOLTAGE Current Limit Option A B C D E F G H VREFC[mV] 14 17 22 28 33 38 44 57 Soft Short−Circuit Protection Discharge In case of a short−circuit at the USB cable end or the portable device USB receptacle it is desired to limit the short circuit current to prevent a portable device or cable from a damage. The NCP4371 offers an extended region of output current limiting down to VBUS = 2.2 V. If the VBUS falls below VCC(OFF) then the HVDCP logic is disabled and D+/− pins are shorted. No further commands from the portable device are accepted. The only feature enabled is the output current limiting at the moment. The device stays in the current limiting mode until VCC rises back above VCC(ON) threshold. The device logic will resume its operation and goes to a default BC1.2 compatible mode. A new negotiation between the charger and portable device has to be carried out in order to enable HVDCP compatibility mode. If voltage level lower than actual VBUS is requested by PD the discharge circuitry discharges the output capacitors to reach the new voltage level in a short time. As well, the discharge circuitry is activated if cable unplug event is detected. The NCP4371 features two discharge paths. By default, the discharge is done via built−in regulated current source at VCC pin. If the VCC pin discharge capability is not sufficient an external discharge resistor RDIS has to be used. The discharge resistor is wired from a positive pole of the output capacitor to the DISCHARGE pin. The minimum recommended value of the discharge resistor RDIS is 100 W. The DISCHARGE pin has an internal protection for a case the user wires the pin directly to VBUS. If this condition is detected the discharge MOSFET at the pin is turned off. It is highly recommended to use an external discharge resistor always if Class B device is used. In case of Class A device and COUT < 1500 mF the DISCHARGE pin can be left disconnected. Table 6. DEVICE OPTIONS QuickCharge Class A/B OPN # NCP4371___DR2G Marking A B Class A Class B Power Limit A B Current Limit (mV) C Class A Class A&B No Power Limit NCP4371AACDR2G 4371AAC X X NCP4371AAEDR2G 4371AAE X X NCP4371AADDR2G 4371AAD X X NCP4371ACCDR2G 4371ACC X NCP4371BBEDR2G 4371BBE A B C D E F G H 14 17 22 28 33 38 44 57 X X X X X X X X ORDERING INFORMATION Device Marking Package Shipping† NCP4371AACDR2G NCP4371AAEDR2G NCP4371AADDR2G NCP4371ACCDR2G NCP4371BBEDR2G 4371AAC 4371AAE 4371AAD 4371ACC 4371BBE SOIC−8 Pb−Free 2500 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. www.onsemi.com 12 NCP4371 PACKAGE DIMENSIONS SOIC−8 NB CASE 751−07 ISSUE AK −X− NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 6. 751−01 THRU 751−06 ARE OBSOLETE. NEW STANDARD IS 751−07. A 8 5 S B 0.25 (0.010) M Y M 1 4 K −Y− G C N DIM A B C D G H J K M N S X 45 _ SEATING PLANE −Z− 0.10 (0.004) H M D 0.25 (0.010) M Z Y S X J S MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 1.35 1.75 0.33 0.51 1.27 BSC 0.10 0.25 0.19 0.25 0.40 1.27 0_ 8_ 0.25 0.50 5.80 6.20 INCHES MIN MAX 0.189 0.197 0.150 0.157 0.053 0.069 0.013 0.020 0.050 BSC 0.004 0.010 0.007 0.010 0.016 0.050 0 _ 8 _ 0.010 0.020 0.228 0.244 SOLDERING FOOTPRINT* 1.52 0.060 7.0 0.275 4.0 0.155 0.6 0.024 1.270 0.050 SCALE 6:1 mm Ǔ ǒinches *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. Qualcomm Quick Charge is a trademark of Qualcomm Incorporated. ON Semiconductor and the are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries. SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. 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SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor 19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: [email protected] N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5817−1050 www.onsemi.com 13 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP4371/D