NCV7001 Quad Variable Reluctance Sensor Interface IC The NCV7001 is a four−channel variable reluctance sensor interface IC. Microprocessor control functions include two polarity 5.0 V programmable resets, two programmable watchdog inputs, and an enable function (OLE). Two watchdog inputs allow control from two independent microprocessors. Open sensor detection capability is provided. During test mode (NTEST = Low), a high on the OLE pin should provide a high on the output. A low under these conditions indicates an open load. This part has been designed to operate in an automotive environment. Features Four Channel Capability Differential Inputs Open Sensor Detect 5.0 V Supply Operation with RESET and Watchdog Features On−Chip Input Voltage Clamping NCV Prefix for Automotive and Other Applications Requiring Site and Change Control • Pb−Free Packages are Available • • • • • • Typical Applications • Antilock Braking Systems (ABS) • Traction Control Systems (TCS) • Vehicle Dynamics Control (VDC) http://onsemi.com SO−24L DW SUFFIX CASE 751E 24 1 MARKING DIAGRAM 24 NCV7001 AWLYYWW G 1 A WL YY WW G = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package PIN CONNECTIONS RDLY NTEST INN1 INP1 INN2 INP2 INP3 INN3 INP4 INN4 THOLD GND 1 24 NOUT1 NOUT2 WDO LVI NLVI WD2 VCC WD1 OLE WDLY NOUT3 NOUT4 ORDERING INFORMATION Package Shipping† NCV7001DW SO−24L 30 Units/Rail NCV7001DWG SO−24L (Pb−Free) 30 Units/Rail SO−24L 1000 Tape & Reel SO−24L (Pb−Free) 1000 Tape & Reel Device NCV7001DWR2 NCV7001DWR2G †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. © Semiconductor Components Industries, LLC, 2005 July, 2005 − Rev. 3 1 Publication Order Number: NCV7001/D NCV7001 22 k Variable Reluctance Sensor 1/4 W 0.001 μF 200 V 22 k 0.01 μF 50 V 0.047 μF 0.01 μF 50 V 1/4 W 22 k Variable Reluctance Sensor 1/4 W 0.001 μF 200 V 22 k 0.01 μF 50 V 0.01 μF 50 V 47 k RDLY NOUT1 NTEST NOUT2 INN1 WDO INP1 LVI INN2 NLVI INP2 WD2 INP3 VCC INN3 WD1 INP4 OLE INN4 WDLY 47 k 1/4 W 22 k Variable Reluctance Sensor 1/4 W 0.001 μF 200 V 22 k 0.01 μF 50 V 0.01 μF 50 V 1/4 W THOLD NOUT3 GND NOUT4 22 k Variable Reluctance Sensor 1/4 W 0.001 μF 200 V 22 k NCV7001 0.1 μF VCC 0.1 μF 47 k 0.01 μF 50 V 0.01 μF 50 V 1/4 W Figure 1. Application Diagram MAXIMUM RATINGS* Rating Value Unit −0.3 to 7.0 V −10, 10 mA 2.0 kV Storage Temperature −55 to 150 °C Operating Junction Temperature −40 to 150 °C 16 80 °C/W °C/W 240 peak °C DC Supply Voltage (VCC) Input Clamp Current ESD Capability (Human Body Model) Package Thermal Resistance: Junction−to−Case, RθJC Junction−to−Ambient, RθJA Lead Temperature Soldering: Reflow: (SMD styles only) (Notes 1, 2) Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. *The maximum package power dissipation must be observed. 1. 60 second maximum above 183°C. 2. −5°C/+0°C allowable conditions. http://onsemi.com 2 NCV7001 ELECTRICAL CHARACTERISTICS (4.5 V ≤ VCC ≤ 5.5 V, −40°C ≤ TJ ≤ 125°C; unless otherwise noted.) Characteristic Test Conditions Min Typ Max Unit − − − 24 mA General Characteristics Quiescent Current Input Positive Input Threshold Rseries = 22 k between INPX & INNX Thold Pin = 0 V 30 45 60 mV Negative Input Threshold Rseries = 22 k between INPX & INNX Thold Pin = 0 V −60 −45 −30 mV Positive Input Threshold Rseries = 22 k between INPX & INNX Thold Pin = 2.0 V 84 126 168 mV Negative Input Threshold Rseries = 22 k between INPX & INNX Thold Pin = 2.0 V −168 −126 −84 mV Positive Input Threshold Rseries = 22 k between INPX & INNX ±90 mV at VCC = VTHOLD = 4.5 V 110 140 200 mV Negative Input Threshold Rseries = 22 k between INPX & INNX ±90 mV at VCC = VTHOLD = 4.5 V −200 −140 −110 mV Input Resistance − 225 400 800 kΩ 0.46 VCC 0.5 VCC 0.54 VCC V −6.0 − 6.0 mA −0.5 VCC − 0.6 0 VCC 0.5 VCC + 0.6 V V 22 k in Series with INNX and INPX 12 − 120 kΩ Output Low Voltage IOUT = 1.0 mA − 0.2 0.4 V Output High Voltage IOUT = −100 μA VCC − 0.7 − − V Output During Test / Normal Sensor (VCC − VOUT) OLE = 1.0, IOUT = −100 μA − − 0.7 V Output During Test / Open Sensor (VCC − VOUT) OLE = 1.0, IOUT = −1.0 mA − − 0.4 V Output (VCC − VOUT) OLE (= Low), IOUT = −100 μA, − − 0.7 V Output (VCC − VOUT) OLE ( = 1.0)/Normal Sensor, NO Signal from Sensor, IOUT = −100 μA − − 0.4 V Watchdog Output Low Voltage IWDO = 1.0 mA − 0.2 0.4 V Watchdog Output High Leakage VWDO = VCC Input Bias/Single Ended Thold = 0 V Input Clamp Current For Correct Reset & Watchdog During Power Up Input Clamp Voltage (−10 mA) (+10 mA) Open Sensor Threshold Output (NOUTX) Logic Watchdog Input Voltage High Watchdog Input Voltage Low − − − 10 μA − 1.5 2.0 V − 0.8 1.4 − V Watchdog Input Pullup Current WD1 = WD2 = 2.0 V −30 − −450 μA Watchdog Input Pullup Current WD1 = WD2 = 0.8 V −50 − −600 μA Thold Pin Input Current 0.3 V < VTHOLD < VCC − 5.0 40 μA Test Input Low Threshold − 0.3 VCC − − V Test Input High Threshold − − − 0.7 VCC V −25 − 220 μA Test Input Current VIN = 0.7 VCC, TEST = 1 OLE Input Low Threshold − 0.8 1.4 − V OLE Input High Threshold − − 1.5 2.0 V OLE Input Current OLE = 1.0, VIN = 2.0 V −30 − −450 μA OLE Input Current OLE = Low, VIN = 0.8 V −50 − −600 μA http://onsemi.com 3 NCV7001 ELECTRICAL CHARACTERISTICS (continued) (4.5 V ≤ VCC ≤ 5.5 V, −40°C ≤ TJ ≤ 125°C; unless otherwise noted.) Characteristic Test Conditions Min Typ Max Unit Low Voltage Reset Timeout Delay VCC − Increasing 0 to 5.0 V 30 50 70 ms Reset Delay VCC − Decreasing 5.0 to 4.25 V − − 1.0 ms NLVI Rise and Fall Time 10 k Pullup & CL = 30 pF − − 50 μs LVI Rise and Fall Time 57 k Pulldown & CL = 30 pF − − 50 μs Threshold High VCC Going Up − − 4.66 4.75 V Threshold Low VCC Going Low − 4.5 4.59 − V Threshold Hysteresis LVTH − LVTL 30 70 − mV NLVI Output Low 25°C ≤ T ≤ 125°C, VCC = 1.0 V, INLVI = 1.0 mA −40°C ≤ T ≤ 125°C, VCC = 1.2 V, INLVI = 1.0 mA − 150 300 mV − 150 300 mV NLVI Output Low VCC = 4.5 V @ −40°C, INLVI = 2.5 mA − 150 300 mV NLVI Output Leakage VNLI = VCC −10 − 10 μA LVI Output High VCC = 1.0 V, ILV = −36 μA 0.8 0.9 − V LVI Output High VCC = 4.5 V, ILV = −250 μA 3.6 4.3 − V LVI Output Leakage 4.75 < VCC 5.25 V, VLVC = 0 V −7.5 − 7.5 μA Watchdog Short Time Detect (Watchdog Running at 300 Hz) 4.56 6.075 7.59 ms Watchdog Long Time Detect (Watchdog Running at 33 Hz) 13.7 18.25 22.8 ms Watchdog Skew Time Detect (Difference between WD1 & WD2) 0.7 − 2.1 ms Timing Specs Watchdog Timeout Delay Time − Output Rise Time CL = 30 pF Output Fall Time CL = 30 pF 30 50 70 ms − 0.5 2.0 μs − 0.05 2.0 μs Delay Input to Output − − 1.0 20 μs OLE Delay to NOUT − − 1.0 20 μs http://onsemi.com 4 NCV7001 PIN DESCRIPTION ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. Symbol Description 1 RDLY 2 NTEST Low = test, high = normal operation. 3 INN1 Minus input to channel 1 comparator. 4 INP1 Plus input to channel 1 comparator. 5 INN2 Minus input to channel 2 comparator. 6 INP2 Plus input to channel 2 comparator. 7 INP3 Plus input to channel 3 comparator. 8 INN3 Minus input to channel 3 comparator. 9 INP4 Plus input to channel 4 comparator. 10 INN4 Minus input to channel 4 comparator. 11 THOLD 12 GND 13 NOUT4 Inverted output of comparator 4. 14 NOUT3 Inverted output of comparator 3. 15 WDLY Determines watchdog timing. Determines the low voltage reset delay and watchdog enable and disable delay. Variable threshold adjustment. Ground. 16 OLE Disables outputs. High = normal operation. Low = forces all outputs and comparators high. 17 WD1 Watchdog input. 18 VCC 5.0 V input to IC. 19 WD2 Watchdog input. 20 NLVI Reset output (in reset when low). 21 LVI Reset output (in reset when high). 22 WDO 23 NOUT2 Inverted output of comparator 2. 24 NOUT1 Inverted output of comparator 1. Watchdog output (low for valid watchdog signal). Wheel Speed Output Functionality Sensor NTEST OLE NOUTx OPEN L L H OPEN L H L OPEN H L H OPEN H H X NORMAL L L H NORMAL L H H NORMAL H L H NORMAL H H X X = Do not care (dependent on presence of sensor signal). http://onsemi.com 5 NCV7001 VCC LVI Bandgap Regulator INN1 0.5 VCC RESET NLV VBG + − RDL NOUT1 INP1 VBG VCC + − + − THOLD VCC INN2 0.5 VCC + − NOUT2 INP2 VBG VCC + − VCC INN3 0.5 VCC + − NOUT3 INP3 VBG VCC VCC + − WD1 WD2 VCC Watchdog WDO INN4 0.5 VCC + − WDLY NOUT4 INP4 VBG VCC VCC NTEST + − VCC OLE GND Figure 2. Block Diagram http://onsemi.com 6 NCV7001 PACKAGE DIMENSIONS SO−24L DW SUFFIX CASE 751E−04 ISSUE E −A− 24 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS 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 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. 13 −B− 12X P 0.010 (0.25) 1 M B M 12 24X D J 0.010 (0.25) M T A S B S F R C −T− SEATING PLANE M 22X G K http://onsemi.com 7 X 45 _ DIM A B C D F G J K M P R MILLIMETERS MIN MAX 15.25 15.54 7.40 7.60 2.35 2.65 0.35 0.49 0.41 0.90 1.27 BSC 0.23 0.32 0.13 0.29 0_ 8_ 10.05 10.55 0.25 0.75 INCHES MIN MAX 0.601 0.612 0.292 0.299 0.093 0.104 0.014 0.019 0.016 0.035 0.050 BSC 0.009 0.013 0.005 0.011 0_ 8_ 0.395 0.415 0.010 0.029 NCV7001 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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