NCV890103 Evaluation Board User`s Manual
Contents
1. CBST CDRV CCOMP CDLY CFLT1 CFLT2 CVIN1 Tolerance 10 C0603C104K8RACTU CAP CER GCM1885C1H331JA16D 330 pF 50 V COG 0603 CAP CER GCM188R71E474KA64D 0 47 uF 25 V 10 X7R 0603 Murata Electronics North America CAP CER GRM32ER71H475KA88L 4 7 uF 50 V 1096 X7R 1210 Murata Electronics North America 1210 1206 Taiyo Yuden Murata Electronics North America SOD 323 SMB DIODE 4 5A XAL4030 472 Coilcraft CAP CER LMK316AB7106KLHT 10 uF 10 V 10 X7R 1206 CAP CER UMK212BJ105KG T 1 0 uF 50 V X5R 0805 DIODE BAS16HT1G SWITCH 200 mA 75 V SOD323 DIODE SCHOTTKY 4 0 A 40 V SMB ON Semiconductor o ON Semiconductor NRVB440MFST1G XAL4030 472ME o INDUCTOR POWER 4 7 uH 4 5 A 20 SMD z z z zx EEN i RES 0 0 Q 1 4 W JUMP 1206 SMD RES 6 98 a RC1206JR 070RL CRCWO6036K98FKEA 1 10 W 1 0603 SMD 6 98 kQ Vishay Dale 03 03 3 3 RES 100 Q CRCW0603100RFKEA 1 10 W 1 0603 SMD RES 31 6 Q CRCW060331R6FKEA 1 10 W 1 0603 SMD RES 10 0 CRCW060310KOFKEA 1 10 W 1 0603 5 GRM188R71H472KA01D 4700 pF 50 V 10 X7R 0603 North America Murata Electronics 6 1206 e A o o PS D BST COMP CIRCUIT PIN N A TPA Mill Max 3128 2 00 15 00 00 08 0 DLY FB PRNTD 020 D Manufacturing RDEP RMOD 425 L Corp sw GND1 GND2 4 CONN JACK N A N A BANANA Emerson Network 108 0740 001 Yes VIN VOUT BANANA Power Connectivity UNINS PANEL So2. VIN 28 0 V E 2 o gt o 3 tc 0 6 Output Current Figure 11 Load Regulation with a 3 3 V Output NCV890103 Load Regulation 5 0 V VIN 6 0 V VIN 13 2V VIN 28 0 V Load Regulation of VOUT 0 6 Output Current A Figure 12 Load Regulation with a 5 0 V Output hitp onsemi com 9 NCV890103GEVB SCHEMATIC 900 2090 10066 009 e 3 o 2848 ano T 090 001 9159 Figure 13 Schematic 9021 9021 q AOL EN AOL SA HZX AOS NadO NadO 3n01 anol 9080 011 ZNINE LNIINH ZLNOO LLNOO an EOLOGRAQN ZNIAO INIA O MS NIA LNOA HZX AOL 2090 jnro Adao onsemi com http 10 NCV890103GEVB PCB LAYOUT NCV890103 Demo Board Rev 1 04 15 14 P Layer Figure 14 Top View NCV890103 Demo Board Rev 1 04 15 14 BOTTOM Layer mirrored Figure 15 Bottom View hitp onsemi com 11 NCV890103GEVB BILL OF MATERIALS ES 603 Murata Electronics North America 5 Table 4 BILL OF MATERIALS peserpan CAP 10 uF 0 1 uF 10 V CERAMIC X7R 0603 330 pF 0 47 uF 4 7 uF 10 uF 1 0 uF 75 0 2 40 V 4 0 A 4 7 uH Substi tution Allowed Manufacturer s Part Number Reference Designator s
3. Output Voltage VOUT Line Regulation VOUT Load Regulation VOUT SWITCHING Switching Frequency Soft start Time CURRENT LIMIT Peak Current Limit VOUT EN 5V 2 35 A PROTECTIONS E Es 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 http onsemi com 3 NCV890103GEVB 909 ano NOS pon lt AND 2848 3 C GND aNd ET 2090 001 9159 9021 goz AOL HZX N0L 2X P 9021 9021 Nado Nado 9080 0421 ININH ZLMO9 J aia ON a ra O AINZZb 0807 TVX 4e191100 NIA LNOA 2090 jnro Adao Figure 4 NCV890103GEVB Evaluation Board Schematic onsemi com http NCV890103GEVB OPERATIONAL GUIDELINES 1 Connect a de input voltage within the 6 0 V to 36 V range between VIN and GND 2 Connect a dc enable voltage within the 2 0 V to 36 V range between EN and GND This will power up the switcher The VOUT signal should be 3 3 V 3 Add a load to VOUT up to 1 0 A Figure 5 NCV890103 Board Connections ADDITIONAL GUIDELINES Output Voltage Selection The voltage output for the switcher is adjustable and can be set with a resistor di
4. of sinking 1 mA minimum at 400 mV DELAY VDELU RSTB tRESU time Figure 6 Typical Operation of the Reset with Delay Function http onsemi com 6 NCV890103GEVB TYPICAL PERFORMANCE Efficiency NCV890103 Efficiency 3 3 V Efficiency VIN 6 0V VIN 13 2V VIN 28 0 V 0 6 Output Current A Figure 7 Efficiency with a 3 3 V Output NCV890103 Efficiency 5 0 V gt o e VIN 6 0V VIN 13 2V VIN 28 0 V 0 6 Output Current A Figure 8 Efficiency with a 5 0 V Output http onsemi com 7 NCV890103GEVB Line Regulation NCV890103 Line Regulation 3 3 V LE 2 o gt 2 E 5 tc o a 9 IOUT 100 mA IOUT 500 mA IOUT 1 0A 10 00 15 00 20 00 25 00 30 00 Input Voltage V Figure 9 Line Regulation for a 3 3 V Output NCV890103 Line Regulation 5 0 V Line Regulation of VOUT lOUT 100mA _ E IOUT 500 mA IOUT 1 0A 10 00 15 00 20 00 25 00 30 00 Input Voltage V Figure 10 Line Regulation for a 5 0 V Output hitp onsemi com 8 NCV890103GEVB Load Regulation NCV890103 Load Regulation 3 3 V VIN 6 0V VIN 13 2 V
5. to 36 V e Withstands Load Dump to 40 V e 2 MHz Free running Switching Frequency e Reset with Adjustable Delay e Logic level Enable Input Can be Directly Tied to Battery e 1 4 A min Cycle by Cycle Peak Current Limit Short Circuit Protection enhanced by Frequency Foldback 1 75 Output Voltage Tolerance Output Voltage Adjustable Down to 0 8 V 1 4 Millisecond Internal Soft Start Thermal Shutdown TSD Low Shutdown Current NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements AEC Q100 Qualified and PPAP Capable e Wettable Flanks Pin Edge Plating e These Devices are Pb Free and are ROHS Compliant Typical Applications e Audio Infotainment Safety Vision Systems Instrumentation Publication Order Number EVBUM2235 D NCV890103GEVB Figure 2 NCV890103 Block Diagram TYPICAL APPLICATION Figure 3 NCV890103 Typical Application http onsemi com 2 NCV890103GEVB Table 1 EVALUATION BOARD TERMINALS Positive dc Input Voltage VOUT Positive dc Output Voltage RSTB Reset with Adjustable Delay Table 2 ABSOLUTE MAXIMUM RATINGS Voltages are with respect to GND tng 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 Table 3 ELECTRICAL CHARACTERSITICS REGULATION
6. NCV890103GEVB NCV890103 Evaluation Board User s Manual Description The NCV890103 is a fixed frequency monolithic Buck switching regulator intended for Automotive battery connected applications that must operate with up to a 36 V input supply The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems The NCV890103 is capable of converting the typical 4 5 V to 18 V automotive input voltage range to outputs as low as 3 3 V at a constant switching frequency above the sensitive AM band eliminating the need for costly filters and EMI countermeasures A Reset pin signals when the output is in regulation and a pin is provided to adjust the delay before the RSTB signal goes high The NCV890103 also provides several protection features expected in Automotive power supply systems such as current limit short circuit protection and thermal shutdown In addition the high switching frequency produces low output voltage ripple even when using small inductor values and an all ceramic output filter capacitor forming a space efficient switching regulator solution Figure 1 NCV890103 Evaluation Board Semiconductor Components Industries LLC 2014 April 2014 Rev 0 ON Semiconductor hitp onsemi com EVAL BOARD USER S MANUAL Key Features e Internal N channel Power Switch e Low Vin Operation Down to 4 5 V e High Vin Operation
7. Technical Support 800 282 9855 Toll Free ON Semiconductor Website www onsemi com Literature Distribution Center for ON Semiconductor USA Canada P O Box 5163 Denver Colorado 80217 USA Europe Middle East and Africa Technical Support Order Literature http www onsemi com orderlit Phone 303 675 2175 or 800 344 3860 Toll Free USA Canada Phone 421 33 790 2910 chases Fax 303 675 2176 or 800 344 3867 Toll Free USA Canada Japan Customer Focus Center For additional information please contact your local Email orderlit onsemi com Phone 81 3 5817 1050 Sales Representative EVBUM2235 D
8. s Typical parameters which may be provided in SCILLC data sheets and or specifications can and do vary in different applications and actual performance may vary over time All operating parameters including Typicals must be validated for each customer application by customer s technical experts SCILLC does not convey any license under its patent rights nor the rights of others 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 American
9. ultions MOU http onsemi com 12 NCV890103GEVB Table 4 BILL OF MATERIALS continued Substi Reference Manufacturer s tution Designator s A Description Tolerance Part Number Allowed GND3 GND6 TERM N A TURRET Mill Max 2501 2 00 44 00 00 07 0 SOLDER Manufacturing TURRET 219 Corp 109 L EN RSTB PIN INBOARD Vector Electronics K24C M 042 HOLE 1000 PKG NCV890103 1 2 2 MHz NCV890103 10PINDFNP5 ON Semiconductor NCV890103MWTXG Automotive Buck Switching Regulator L2 is a placeholder footprint for an optional input inductor filter component Boards are shipped with a shorting jumper installed to complete the input path NOTE All devices are ROHS Compliant ON Semiconductor and are registered trademarks of Semiconductor Components Industries LLC SCILLC 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 SCILLC makes no warranty representation or guarantee regarding the suitability of its products for any particular purpose nor does SCILLC assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability including without limitation special consequential or incidental damage
10. vider The FB reference for the switcher is 0 8 V VOUT RUPPER FB 0 8 V RLOWER Use the following equation Vour V Ruprer Riower REC WD Some common setups are listed below Desired RupPER RLowER Output V VREF V kQ 1 kQ 1 21 5 10 0 31 6 10 0 52 3 10 0 Reset with Adjustable Delay The RSTB pin is pulled low as long as the voltage on the FB pin is lower than 92 typical of the reference voltage which corresponds to the output voltage being lower than 92 of its regulation level It is high impedance when the voltage goes above 94 typical of the regulation level after a delay adjusted by the capacitor on the DELAY pin The capacitor is held at ground until the output enters regulation Cpgr Ay is then quickly charged to the internal rail voltage Vresu then discharged by the Idelay current until its voltage reaches the lower threshold Vpe TH Only at this moment the RSTB pin voltage goes high indicating the end of the Reset condition hitp onsemi com NCV890103GEVB A small filtering delay of duration tpg ensures that the The RSTB pin is also pulled low in case of UVLO Vin RSTB signal doesn t toggle from high to low in case of high below the UVLO threshold TSD temperature shutdown frequency noise when the output is in regulation or Disable Ven below the enable threshold events A pull up resistor is needed on the RSTB pin as it features an open collector output capable
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