NCV7718, NCV7720 Half-Bridge Driver
Contents
1. Vernun 2 0 1 we fl Ep ds on sik si so l e EJ PH H lus to the rest of the half bridge integrated drivers in the family and for different load types Figure 3 shows the VCC DIS and the VBAT DIS jumpers inserted so the digital supply and battery voltage is applied to the board When VBAT voltage is applied to the board the onboard regulator regulates the VCC voltage By default the VCC is regulated to 3 3 V but this can be adjusted to 5 V via the GUI The onboard LED VCC_REG is illuminated when the regulator is active If the VCC power is delivered to the board VCC_DIS is closed the VCC LED is also activated MOTOR4 e MOTOR 3 MOTOR 1 09 21 11 oll EMEN Re EE cm i m mmn R RTL ui VCC DIS Go Lm ps Tvc EE hit M EN HE b o m EE vob R GW co i GHD mI bb C6 Ri R m t 1 Or Semiconductor e EE E SE 9 9 9 9 9 96 96 6 96 Figure 3 Application Example Once the hardware is configured with the desired load and is interfaced with the USB to SPI adapter the user can invoke the FlexMOS software Once the software is launched the GUI should automatically identify the connected demonstration board and loads the appropriate GUI interface for the half bridge driver If the software doesn t recognize the connected demonstration board manual2. VBAT C h 3 od NCV7718EVB NCV7720EVB NCC JUMPER WIN 1 24 2 19 G20 TuF f Fi ae p R13 R14 14 75 31 2k R15 M1 WE EM E EH Ban A MEEBF1HUZLT1 125 1 Wee VBAT J28 27 LM 1 Sh rt fer kavaran Battery Prete ctian R18 R18 J28 129 J3D 31 1 4 C C LJ G23 1DUnF RD R21 FE22 Short for ne Reverse Battery Droterctlon Nul E LJ Figure 10 Evaluation Board Schematic BILL OF MATERIAL Table 4 BILL OF MATERIAL Q Value CAP CER 1UF 50V 10 X7R 0805 Manufacturer s Part Number Murata Electronics GRM21BR71H104KA01L North America Murata Electronics GRM21BR71H105KA12L North America ty 20 0 1 uF CAP CER 1UF 50V X7R 0805 1 0 uF J6 J7 J8 J9 J3 J5 10 19 21 22 J25 J33 J20 1 CONN HEADER VERT 24POS 100 N A GOLD J23 J24 2 22 uF Murata Electronics GRM31CR61C226ME15L North America ON Semiconductor BAS16LT3G Phoenix Contact 1729128 5010 TE Connectivity 5499910 5 A Molex Connector 22 28 4024 CAP CER 22UF 16V X5R 1206 LED GREEN CLEAR THIN 0805 SMD DIODE SWITCH 75V 200MA SOT 23 CONN TERM BLOCK 2POS 5 08MM PCB N A N A N A TEST POINT PC MULTI PURPOSE HED Keystone Electronics CONN HEADER 2POS 100 VERT N GOLD Corporation http onsemi com 9 NCV7718EVB NCV7720EVB Table 4 BILL OF MATERIAL Qty Description Value Manufacturer s Part Number M1 1 MOSFET N CH 20V
3. 750MA SOT23 20V ON Semiconductor MGSF1NO2LT1G 0 75 A MOSFET N CH 60V 24A DPAK 60 V ON Semiconductor NTD24NO6LT4G 24 A H1 R8 R9 R10 R11 H15 RES 620 OHM 1 8W 1 0805 SMD Vishay Dale CRCWO805620RFKEA R2 R3 R6 RES 0 0 OHM 1 10W 0603 SMD Panasonic ECG ERJ 3GEYOROOV R7 Vishay Dale CRCVVO8052ROOFKEA Vishay Dale CRCW0805200RFKEA RES 2 00 OHM 1 8W 1 0805 SMD RES 200 OHM 1 8W 1 0805 SMD RES 10 0K OHM 1 8W 1 0805 SMD 10 0 K Vishay Dale CRCVVO80510KOFKEA RES 14 7K OHM 1 8VV 196 0805 SMD Vishay Dale CRCVVO80514K7FKEA RES 30 9K OHM 1 8VV 196 0805 SMD 30 9 K Vishay Dale CRCVVO80530K9FKEA RES 22 0K OHM 1 8VV 196 0805 SMD Vishay Dale CRCVVO80522KOFKEA R17 R22 Fa RES 0 0 OHM 1 8W 0805 SMD E Vishay Dale CRCW08050000Z0EA Half Bridge Driver ON Semiconductor NCV77XX IC FLIP FLOP DUAL CMOS 14SOIC ON Semiconductor MC14013BDR2G EVALUATION BOARD FEATURES Reverse Battery Protection The reverse battery protection scheme is employed as shown in the bottom section of Figure 10 An N channel NTD24N06L MOSFET is used to isolate the chip ground of the integrated driver from the module ground When proper VBAT voltage is applied to the gate the MOSFET will be pulled up to the regulated VCC voltage Thus turning on the MOSFET and connecting the module ground and the chip ground via a very low ohmic drop Even when the LDO is not regulating in absence of gate voltage to the MOSFET there is a current path from VBAT to the
4. Bar signal produced by the master CSB LED is illuminated when CSB transition to a low state N D SB Note 2 LED Indicator CSB LED is illuminated when CSB transition to a low state VCC REG VCC REG LED is illuminated when the regulated voltage is applied to the demonstration board VCC LED is illuminated when the LDO is regulating Supply VBAT DIS VBAT DIS jumper is used to disconnect the VBAT supply from the board No power is delivered Disconnect to the integrated driver or the LDO when the jumper is disconnected VCC DIS VCC DIS jumper is used to disconnect the VCC supply from the LDO to the board When the jumper is disconnected the board can be powered from an external supply 1 OUT7 OUT10 are only available in NCV7720 devices 2 Sl is OR ed with the TSD fault so if the LSB bit BO is set high on the previous frame the TSD will be set high E TS C S S VC G E TS C VC http onsemi com 4 NCV7718EVB NCV7720EVB OPERATIONAL GUIDELINES The material necessary to successfully use the demonstration boards is given hereunder PC running the latest Onsemi FlexMOS GUI USB cable Type A to Type B USB to SPI Interface Adapter with Ribbon Cable NCV7717 7720 Evaluation Board Power Supply Resistive Inductive or Motor Load An application example of a NCV7720 driving motor loads is given in Figure 3 The same concept can be applied 12V USB to SPI Interface a a 2 Adapter i SPI ang 1 0 TH
5. the Recommended Operating Conditions is not implied Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability Table 2 RECOMMENDED OPERATING CONDITIONS External Digital Supply Voltage VCC DC Output Current Per Channel no Junction Temperature 40 http onsemi com 2 NCV7718EVB NCV7720EVB Table 3 PIN FUNCTION DESCRIPTION Teminaame sun 00 e Po s For eer pase ouput veed ior carling ho LDO referere eo emaema 0000 e 000 General Purpose Input 1 used for reading latched thermal shutdown TSD data 3 Fo e 24 VCC USB 5 V USB voltage from the USB to SPI adapter board to the demonstration board 100 mA max Supply 5 1 VBAT Main Supply Voltage Powers the NCV77xx drivers and the onboard LDO Requirement M GND M Module Ground MHHHB Optional external digital supply used only when the onboard LDO is discon nected via VCC DIS jumper Outputs om ieo 000000 000 om ieo 000 OU 0000 our rate up 0 AI omo MMBMgeOd 00 http onsemi com 3 NCV7718EVB NCV7720EVB Table 3 PIN FUNCTION DESCRIPTION connector Wme 5 eei 0 Test Points V5 EN When this signal is high the LDO is programmed for 5 V output Enable signal for the integrated driver Latched thermal information Note 2 B I Chip Select
6. NCV7718EVB NCV7720EVB NCV7718 NCV7720 Half Bridge Drivers Evaluation Board User s Manual Description The NCV7717 7720 evaluation board provides a convenient method to evaluate the NCV7718 and NCV7720 half bridge drivers in a suitable application environment A one board solution for all the drivers in the family is possible since all the devices share the same package and common pin out structure The evaluation board is intended to be used with the ON Semiconductor FlexMOS GUI installed on a personal computer PC and the USB to SPI interface adapter board for a master slave communication between the target board and the PC The evaluation boards allow flexible configuration of the various loads and each of the half bridges can be individually controlled via the FlexMOS GUI The evaluation board is populated with an adjustable LDO NCV4276 so a 3 3 V or 5 V digital supply voltage VCC can be selected through the GUI By means of a jumper the user can bypass the onboard regulator and use an external power supply Furthermore the onboard LEDs provide visual indication of the board configuration An external reverse battery circuitry is implemented on the evaluation board to protect the integrated driver in scenarios where the VBAT supply polarity is reversed This feature can be disabled by slightly modifying the board PC USB2SPI ON Semiconductor http onsemi com EVAL BOARD USER S MANUAL Features e One Hardware Sol
7. aries 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 N American 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 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 EVBUM2048 D
8. is 773 T ns 1 9006 ys statue w v ni A 111 mA 2 1 1270 s 1846 528615 kHz BUD In 1700 m kla Ka AA Mi SO na 1A 5 Figure 5 Vcc 3 3 V LS Configuration Switch Turn On Resistive Load Figure 6 Vcc 3 3 V HS Configuration Switch Turn On Resistive Load E HE HUN Lll SSS SSS Se Measure P1 masic 5 P 4 P3 min C4 PA eq C1 P5 fall C 1 PA dutyiC1 value 1471V 461 mA 655 mA 10 3895332 HZ x status ft v v v P1 rac P7 Paver FA risa ct P5TANCT FE 13 0 V 3 525 mA u Figure 7 VCC 3 3 V OUT1 OUT5 H Bridge Configuration Forvvard Reverse Forvvard Loop vvith Figure 8 VCC 3 3 V HVAC Motor Forvvard a Motor Load 5 E m j Measure P1 max C1 P2 min C 4 P3 ovsh C1 P4 rise C1 P fall C1 Pb duty C1 value 21V 27 mA status v hase 15 6 ms Trigger 20 0 msidivi Normal 154 mA 100MS 50 MS sf Edge Either Figure 9 VCC 3 3 V HVAC Motor Reverse http onsemi com 7 NCV7718EVB NCV7720EVB C2 cur RESERVED RESERVED eo 65 C14 C15 d L m l vcc GND NL175H04 NEC Hahm RE pohm R7 Er 1 Hi aranEla H i m3 nr 311 1 EM 2 1 ba cee COT ge p PER 3 i R10 R11 25 G NOE Voc 1 pu Jf c 1 voc USB 24 cs LK s 5 B I en SI ER PE J71 i 1 122 TSD V5 EN z Va EN e 2 DA 2 http onsemi com 8 JUMPER
9. ly select the device from the drop down box If the device name doesn t appear in the drop down box the latest version of the GUI needs to be installed on the PC A detailed description of the GUI functionality for the NCV7718 is provided in Figure 4 The FlexMOS GUI is used to enable or disable the device and to control the half bridge outputs For the application example given in Figure 3 the motor 1 is driven in the forward direction by enabling the high side power MOSFTET on OUT and the low side power MOSFET on OUTS Conversely the current can be directed to flow in the reverse direction by enabling the low side power MOSFTET on OUT1 and the high side power MOSFET on OUTS The same methodology can be carried out for the subsequent motor operations by controlling their respective outputs http onsemi com 5 snes ebpugr jJreH 430 330 430 N SH N S WOSH J H05 1 2 NOST NOSI 2 ring ELno 2110 01005 NCV7718EVB NCV7720EVB in gea gata fee aue Teenie ge OU l 244 x T T Du ong J NEM s apai agp 0000 0000 0000 0000 00004 94 45 papdwoy Pelqesip Jo sejqeu3 3n0x2071 ISCIN selgesip Jo sejqeu3 umopinus peo Japun syne peuoje jje sjeses 3esex smes JeAup v sejqesip 10 se qeu3 eoi eq ejqeu3 I0nuo2 xog X29u5 UoneuuoJul 20 peu
10. module ground through the inherent body diode of the MOSFET In cases where the polarity of the VBAT supply voltage is reversed the MOSFET will not conduct and the module ground will be disconnected from the chip ground The reverse battery protection can be disabled by depopulating resistors R20 R21 and R22 and shorting the following resistors R17 R18 and R19 Latched Thermal Information When the TSD button is pressed on the Flex MOS GUI latched thermal shutdown information is monitored on the demonstration board through the TSD LED indicator D1 since the SI is OR ed with the TSD fault it is important to understand that if the LSB bit BO is set high on the previous frame the TSD reporting should be ignored This is because SI holds the value of BO until the first SCLK rising edge and the TSD information is latched in before the first rising edge of SCLK http onsemi com 10 NCV7718EVB NCV7720EVB EVALUATION BOARD LAYOUT VCC V5_EN 6 NCV7718 Target Board Rev 1 Re FE il fer 150 i GND l iv USB O P VBAT DIS 09 21 01 Sem mm VCC DIS ee be 1 29 RIO D3 C22 ke Ril 02 uu sene m Semiconductor pr U2 2 R16 UN R19 ETH H PFP j igure 12 Top Copper F Il Holes Silk Screen amp Dri Figure 11 Figure 14 Board Composite Figure 13 Bottom Copper lonsemi c
11. oie JO O Yoojo OU YIM sind qs e salealD gSL s nd no y je 10 440 5100199 440 TIV s nd no eDpuq Jjeu ay IIE 40 NO SH SPojes NO SH TIV s nd no eDpuq jieu eui Ile 10 NO S7 5109195 NO STIIV BOIASP ABIS O 9uieJ4 dS pajidwod eu syiusuei eyepd 041102 uopng usng pue pues PUBWWOD dS Jo 607 OHVEAL IdS syne jeqoj6 ile suodey olul sms uoneJedo AG JO A JOULE 10 OG Pueoquo y sujeJ6o4d PON JJA e je Ajeoipoued si ouo eu Ajjeonewojyne 51 uoyNng eiepdryn eui peBueuo s jouoD eBpug jleH eui ueuM oiny H exe eq o OUD eBpug JjeH spew soDueuo Aue 10 uopnq ejepd 1m sseuJd jsnuu 1SN enuey apo e1epdn N9 indui j043u02 eBpug JjeH 24 uo peseq euieJJ dS pajidwoy 45 p lduloo pejqeue SH 40 S e1e1s 41 ui s eDpuq j eu au Jjeujeuw suodes snes bpud HEH soeDpuq jjeu y joujuoo qjuepuedepulr SAO V Ionuoo Figure 4 GUI Overview lonsemi com http NCV7718EVB NCV7720EVB TYPICAL CHARACTERICTICS EN Measure Pi max C1 P2max C4 P3 0v6h C1 PA Ti amp e C1 P 1ali C1 Po dutyi C1 value 1327V 190 mA 17 4 731 ns 1 234492 us v v X PY i AA T Measure Pt mas e1 PE mini P3 msh 61 Paise Patali i Eye Pate sas wii 12n0v 185 m 455 126242165 327 758 nis 5 mA K
12. om http 11 NCV7718EVB NCV7720EVB ON Semiconductor and uD are registered trademarks of Semiconductor Components Industries LLC SCILLC 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 damages 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 subsidi
13. ution for NCV7718 and NCV7720 Half Bridge Drivers e 0 55 A Peak Current e High Side and Low Side Drivers Connected as Half Bridge Configuration Rdson 1 typ e 3 3 Vor 5 V VCC Operation with an Onboard Adjustable Regulator Over Current and Over Temperature Protection e Under Load Detection e Dedicated GUI Interface for Device Control and Diagnostic Interface Connector Target Board Adapter Figure 1 FlexMOS Evaluation Board Solution Semiconductor Components Industries LLC 2012 February 2012 Rev 2 Publication Order Number EVBUM2048 D NCV7718EVB NCV7720EVB Supply Requirements Half Bridge Outputs 24 Pin Interface Connector Test Points Ground Bus Wire LED Indicators Supply Disconnect Figure 2 Evaluation Board Table 1 ABSOLUTE MAXIMUM RATINGS Main Supply Voltage VBAT V Without Reverse Battery Protection Circuitry 0 3 to 40 With Reverse Batter Protection Circuitry 60 to 40 External Digital Supply Voltage VCC 0 3 to 5 5 Output Pins OUTX V Without Reverse Battery Protection Circuitry 0 3 to 40 With Reverse Batter Protection Circuitry 60 to 40 USB to SPI Interface Adapter Connector Pins 0 5 to 5 5 Junction Temperature NCV7718 NCV7720 40 to 150 Ambient Temperature Evaluation board 40 to 105 Stresses exceeding Maximum Ratings may damage the device Maximum Ratings are stress ratings only Functional operation above
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