MC33094 MOTOROLA | Alldatasheet

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1MOTOROLA ANALOG IC DEVICE DATA /C0114/C0109/C0105 Designed for automotive ignition applications in 12 V systems, the MC33094DW provides outstanding control of the ignition coil when used with an appropriate Motorola Power Darlington Transistor. Engine control systems utilizing these devices for ignition coil control exhibit exceptional fuel efficiency and low exhaust emissions. The device is designed to be controlled from a single–ended Hall Sensor input. The circuit is built using high–density Integrated–Injection Logic (IIL) processing incorporating high current–gain PNP and NPN transistors. The MC33094DW is packaged in an economical surface mount package and specified over an ambient temperature of –40°C to 125°C with a maximum junction temperature of 150°C.

  • External Capacitors Program the Devices Timing Characteristics
  • Overvoltage Shutdown Protection
  • Auto Start–Up Capability After Overvoltage Condition Ceases
  • Allows for Push Start–Up in Automotive Applications
  • Ignition Coil Current Limiting
  • Ignition Coil Voltage Limiting
  • Band Gap Reference for Enhanced Stability Over Temperature
  • Negative Edge Filter for Hall Sensor Input Transient Protection
  • Hall Sensor Inputs for RPM and Position Sensing
  • –40°C ≤ TA ≤ 125°C Ambient Operating Temperature MAXIMUM RATINGS (All voltages are with respect to ground, unless otherwise noted.) ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ Rating ÁÁÁÁ ÁÁÁÁ Symbol ÁÁÁÁÁ ÁÁÁÁÁ Value ÁÁÁ ÁÁÁ Unit ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ Power Supply Voltage ÁÁÁÁ ÁÁÁÁ VCC ÁÁÁÁÁ ÁÁÁÁÁ 28.6 ÁÁÁ ÁÁÁ V ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ Junction Temperature ÁÁÁÁ ÁÁÁÁ TJ ÁÁÁÁÁ ÁÁÁÁÁ 150 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ Operating Ambient Temperature ÁÁÁÁ TA ÁÁÁÁÁ ÁÁÁ Continuous –30 to 105 Limited –40 to 125 ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ Storage Temperature ÁÁÁÁ ÁÁÁÁ Tstg ÁÁÁÁÁ ÁÁÁÁÁ –55 to 150 ÁÁÁ ÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ Operating Frequency Range ÁÁÁÁ ÁÁÁÁ fop ÁÁÁÁÁ ÁÁÁÁÁ 1.0 to 400 ÁÁÁ ÁÁÁ Hz ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ Soldering Temperature ÁÁÁÁ ÁÁÁÁ Tsolder ÁÁÁÁÁ ÁÁÁÁÁ 270 ÁÁÁ ÁÁÁ SO–16L (for 10 seconds) ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ Thermal Resistance ÁÁÁÁ ÁÁÁÁ R θJA ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ °C/W Junction–to–Ambient (SO–16L) NOTE: ESD data available upon request. Order Number: MC33094/D Rev. 0, 06/2001 /C0077 /C0084 /C0076 SEMICONDUCTOR TECHNICAL DATA PIN CONNECTIONS Device Operating Temperature Range Package /C0077 SEMICONDUCTOR TECHNICAL DATA IGNITION CONTROL

ORDERING INFORMATION

PC33094DW T A = –40° to +125°C SO–16L DW SUFFIX PLASTIC PACKAGE CASE 751G (SO–16L) /C0051 /C0048 /C0051 (<= *73C 2/=@7B3 /=/17@<> ><A;2 #35/@7B3 ;=A@ *7; ’@/>@ ’@/99 /=/17@<> A>>3;@ ’3;?3 $A@=A@ <79 ’A==9D &/:= /=/17@<>  Motorola, Inc. 2001. All rights reserved. This document contains information on a new product. Specifications and information herein are subject to change without notice. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

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*7; 5;7@7<; *0/@ "/?@3> 7/? /;2 &343>3;13 * 9/:= /;2 .3;3> &34 ;=A@ <:= /;2 #35/@7B3 253 79@3> ’@/99 /=/17@<> 2/=@7B3 /=/17@<> &/:= /=/17@<> ;@3>;/9 !<571 /C0048 /C0051 /C0051 Simplified Ignition Circuit This device contains ??? active transistors. /C0048 8 ELECTRICAL CHARACTERISTICS (Characteristics noted under conditions 6.0 V ≤ VD = VCC ≤ 16 V, –40°C ≤ TA ≤ 125°C, unless otherwise noted. Typical values are specified for TA = 25°C.) Characteristic Symbol Min Typ Max Unit SUPPLY AND MASTER BIAS ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Supply Current (VCC = 16 V, Vin(–) = 0 V, VD = 3.0 V, ÁÁÁÁÁ ÁÁÁÁÁ ICC ÁÁÁÁ ÁÁÁÁ 5.0 ÁÁÁÁ ÁÁÁÁ 8.4 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ mA VCA = VCR = VCS = VST = Open) (Note 1) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Overvoltage Shutdown (Vin(–) = 0 V, VCA = VCR = Open, ÁÁÁÁÁ ÁÁÁÁÁ VCC3 ÁÁÁÁ ÁÁÁÁ 23.7 ÁÁÁÁ ÁÁÁÁ 27.5 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ V VCS = 3.0 V, VST = 28 V) (Note 2) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Start–VCC Latch (Vin(–) = 0 V, VCA = VCR = VCS = Open, ÁÁÁÁÁ ÁÁÁÁÁ VCC5 ÁÁÁÁ ÁÁÁÁ 8.0 ÁÁÁÁ ÁÁÁÁ 16.1 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ V VST = 25 V, VD = 14 V, IST = 40 mA) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Adaptive Dwell High Supply Voltage (Vin(–) = 11 V, VCA = Open, ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ V VCR = 3.0 V, VCS = 3.0 V, VST = 6.0 V, VD = 13 V) Threshold (Note 3) VCC1 16.5 18.9 19.5 Hysteresis (Note 4) VCC2(hys) 0.2 0.5 0.8 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Master Bias Voltage (VCC = 16 V, Vin(–) = 0 V, VD = 3.0 V, ÁÁÁÁÁ ÁÁÁÁÁ VMB ÁÁÁÁ ÁÁÁÁ 1.12 ÁÁÁÁ ÁÁÁÁ 1.2 ÁÁÁÁÁ ÁÁÁÁÁ 1.32 ÁÁÁ ÁÁÁ V VCA = VCR = VCS = VST = Open) (Note 5) NOTES: 1. Current sourced into Supply pin. 2. Ramp up VCC from 24 to 31 V in 0.1 V increments and note the supply voltage, VCC , which causes VO to fall below 1.0 V. 3. Ramp up VCC from 14 to 20 V in 0.1 V increments and measure VCC when ICA ≤ 2.0 µA. 4. Ramp up VCC from 20 to 14 V and measure VCC when ICA ≥ 2.0 µA and compute hysteresis difference from VCC1 . 5. Voltage measured at Master Bias pin. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

  1. Measure Iin(–) into Pin 7; ZI = 10 V/Iin(–).

Figure 1. Basic Timing Diagrams NOTES: 1. The falling edge of the Vin(–) signals a charge command, while the rising edge signals a spark command.

  1. During start mode, stall conditions are prevented.
  2. During a stall, the coil is discharged slowly and a quick charge and spark occur on the next spark command.

Freescale Semiconductor, Inc.

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Figure 2. Test Circuit NOTES: 1. Capability measured by forcing the Output to 2.0 V with Current Sense pin (IS) open while measuring the Output current to ground.

  1. Measured by clamping the output to that output voltage with IS pin to ground; then increasing VD from 6.0 to 18 V and measuring output leakage
  2. Output Clamp voltage with reference to ground while forcing 10 mA into the Dynamic Clamp pin (CL).
  3. Output Clamp impedance measured with ICL = 11 ± 1.0 mA into the Dynamic Clamp pin (CL) and noting the corresponding Output Clamp Voltage
  4. Dwell is defined as Run Mode Down Current divided by the Run Mode Up Current times the Ramp Control Current Ratio and is calculated from other

measured characteristics as defined above. voltage to go > 1.0 V; VCRO = 2.0 V – VCR . Freescale Semiconductor, Inc.

5MOTOROLA ANALOG IC DEVICE DATA ELECTRICAL CHARACTERISTICS (continued) (Characteristics noted under conditions 6.0 V ≤ VD = VCC ≤ 16 V, –40°C ≤ TA ≤ 125°C, unless otherwise noted. Typical values are specified for TA = 25°C.) Characteristic UnitMaxTypMinSymbol OUTPUT AND DWELL ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Adaptive Dwell Logic, Ramp Threshold (VCC = 14 V, Vin(–) = 10 V, ÁÁÁÁÁ ÁÁÁÁÁ VCRO ÁÁÁÁ ÁÁÁÁ –60 ÁÁÁÁ ÁÁÁÁ 0 ÁÁÁÁÁ ÁÁÁÁÁ 60 ÁÁÁ ÁÁÁ mV VCA = VCS = Open, VST = 0 V, VD = 10 V, VS = 0 V) (Note 6) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Soft Shutdown Voltage (VCC = 6.0 V, Vin(–) = 10 V, ÁÁÁÁÁ ÁÁÁÁÁ VSS ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 1.48 ÁÁÁÁÁ ÁÁÁÁÁ 16.7 ÁÁÁ ÁÁÁ mV VCA = VCR = VCS = Open, VST = 0 V) Measure VS NOTES: 1. Capability measured by forcing the Output to 2.0 V with Current Sense pin (IS) open while measuring the Output current to ground. 2. Measured by clamping the output to that output voltage with IS pin to ground; then increasing VD from 6.0 to 18 V and measuring output leakage current to ground. 3. Output Clamp voltage with reference to ground while forcing 10 mA into the Dynamic Clamp pin (CL). 4. Output Clamp impedance measured with ICL = 11 ± 1.0 mA into the Dynamic Clamp pin (CL) and noting the corresponding Output Clamp Voltage change (ZCL = ΔVCL /ΔICL ). 5. Dwell is defined as Run Mode Down Current divided by the Run Mode Up Current times the Ramp Control Current Ratio and is calculated from other measured characteristics as defined above. voltage to go > 1.0 V; VCRO = 2.0 V – VCR . ELECTRICAL CHARACTERISTICS (Characteristics noted under conditions 6.0 V ≤ VD = VCC ≤ 16 V, –40°C ≤ TA ≤ 125°C, unless otherwise noted. Typical values are specified for TA = 25°C.) Characteristic Symbol Min Typ Max Unit ADAPTIVE CAPACITOR ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Run Mode, Adaptive Capacitor, Charge Current (VCC = 6.0 V, ÁÁÁÁÁ ÁÁÁÁÁ ICA1 ÁÁÁÁ ÁÁÁÁ –7.91 ÁÁÁÁ ÁÁÁÁ –6.53 ÁÁÁÁÁ ÁÁÁÁÁ –5.62 ÁÁÁ ÁÁÁ µA Vin(–) = 5.0 V, VCA = Open, VCR = 3.0 V, VCS = 3.0 V, VST = 6.0 V) (Note 1) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Run Mode, Adaptive Capacitor, Discharge Current ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ µA (VCA = Open, VCS = 3.0 V, VCR = 3.0 V, VST = 6.0 V) Normal Condition (VCC = 6.0 V, Vin(–) = 10 V) ICA2 3.7 4.77 5.63 High Voltage Condition (VCC = 22 V, Vin(–) = 17 V, VD = 13 V) ICA3 1.05 1.43 1.82 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Start Mode, Adaptive Capacitor Currents ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ µA (VCA = VCR = VCS = Open, VST = 10 V) Charge Current (VCC = 5.0 V, Vin(–) = 10 V) (Note 2) ICA4 –112 –87 –80 Discharge Current (VCC = 6.0 V, Vin(–) = 0 V) (Note 3) ICA5 67.6 89.4 109 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Start Mode, Adaptive Capacitor, Clamp Voltage ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ V (VCC = 6.0 V, VCA = VCR = VCS = Open, VST = 10 V) High Clamp Voltage (Vin(–) =10 V) VCA1 2.23 2.39 2.65 Low Clamp Voltage (Vin(–) = 0 V) VCA2 0.95 1.1 1.26 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Adaptive Gain (VCC = 14 V, Vin(–) = 11 V, VST = 6.0 V, ÁÁÁÁÁ ÁÁÁÁÁ AG ÁÁÁÁ ÁÁÁÁ 0.85 ÁÁÁÁ ÁÁÁÁ 0.99 ÁÁÁÁÁ ÁÁÁÁÁ 1.15 ÁÁÁ ÁÁÁ Times VCA = Open, VCR = 3.0 V, VCS = 3.0 V , VD = 13 V) (Note 4) NOTES: 1. Open VCR initially then force VCR = 3.0 V and measure ICA1 . 2. Start Mode Adaptive Control sourcing current. 3. Start Mode Adaptive Control sink current. 4. Measure ICA . Calculate: AG = ICR1 /ICA . Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

6 MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS (Characteristics noted under conditions 6.0 V ≤ VD = VCC ≤ 16 V, –40°C ≤ TA ≤ 125°C, unless otherwise noted. Typical values are specified for TA = 25°C.) Characteristic Symbol Min Typ Max Unit STALL CAPACITOR ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Start Mode, Stall Control, Charge Current (VCC = 5.0 V, Vin(–) = 0 V, ÁÁÁÁÁ ÁÁÁÁÁ ICS1 ÁÁÁÁ ÁÁÁÁ –2.7 ÁÁÁÁ ÁÁÁÁ –2.33 ÁÁÁÁÁ ÁÁÁÁÁ –2.13 ÁÁÁ ÁÁÁ µA VCA = VCR = Open, VCS = 1.0 V, VST = 10 V) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Run Mode, Stalled, Stall Control, Discharge Current (VCC = 14 V, ÁÁÁÁÁ ÁÁÁÁÁ ICS2 ÁÁÁÁ ÁÁÁÁ 7.5 ÁÁÁÁ ÁÁÁÁ 9.69 ÁÁÁÁÁ ÁÁÁÁÁ 13.2 ÁÁÁ ÁÁÁ µA Vin(–) = 0 V, VCA = VCR = Open, VCS = 1.0 V, VST = 0 V) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Run Mode, Stall Control, Charge Current (VCC = 14 V, Vin(–) = 10 V, ÁÁÁÁÁ ÁÁÁÁÁ ICS3 ÁÁÁÁ ÁÁÁÁ –33.1 ÁÁÁÁ ÁÁÁÁ –27 ÁÁÁÁÁ ÁÁÁÁÁ –23.5 ÁÁÁ ÁÁÁ µA VCA = 2.0 V, VCR = 3.0 V, VCS = 1.0 V, VST = 0 V) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Run Mode, Stall Control, Discharge Current (VCC = 14 V, ÁÁÁÁÁ ÁÁÁÁÁ ICS4 ÁÁÁÁ ÁÁÁÁ 0.76 ÁÁÁÁ ÁÁÁÁ 1.02 ÁÁÁÁÁ ÁÁÁÁÁ 1.26 ÁÁÁ ÁÁÁ µA Vin(–) = 10 V, VCA = 2.0 V, VCR = Open, VCS = 1.0 V, VST = 0 V, VMB = 0 V) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Stall Control Threshold Voltage (VCC = 14 V, Vin(–) = 0 V, ÁÁÁÁÁ ÁÁÁÁÁ VCS1 ÁÁÁÁ ÁÁÁÁ 1.95 ÁÁÁÁ ÁÁÁÁ 2.06 ÁÁÁÁÁ ÁÁÁÁÁ 2.45 ÁÁÁ ÁÁÁ V VCA = VCR = Open, VST = 0 V) (Note 1) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Stall Control Saturation Voltage (VCC = 14 V, Vin(–) = 0 V, ÁÁÁÁÁ ÁÁÁÁÁ VCS2 ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 35.3 ÁÁÁÁÁ ÁÁÁÁÁ 165 ÁÁÁ ÁÁÁ mV VCA = VCR = VCS = Open, VST = 0 V) (Note 2) 2. Set VST = 10 V, VCS = 1.0 V, Fail if output is on. Set VCS = 3.0 V, Fail if output is off. ELECTRICAL CHARACTERISTICS (Characteristics noted under conditions 6.0 V ≤ VD = VCC ≤ 16 V, –40°C ≤ TA ≤ 125°C, unless otherwise noted. Typical values are specified for TA = 25°C.) Characteristic Symbol Min Typ Max Unit RAMP CAPACITOR ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Ramp Control Current Ratio (VCC = 14 V, Vin(–) = 0 V, ÁÁÁÁÁ ÁÁÁÁÁ CR ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 24.3 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ VCR = 3.0 V, VST = 0 V, VCA = VCS = Open) (Note 1) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Ramp Capacitor Reset Hysteresis (VCC = 14 V, Vin(–) = 10 V, ÁÁÁÁÁ ÁÁÁÁÁ VCR(hys) ÁÁÁÁ ÁÁÁÁ 6.0 ÁÁÁÁ ÁÁÁÁ 19.19 ÁÁÁÁÁ ÁÁÁÁÁ 180 ÁÁÁ ÁÁÁ mV VCA = 2.0 V, VCS = 3.0 V, VST = 6.0 V) (Note 2) (ICR1 /(ICR1 – ICR2 ) x 100). between steps, until ICR goes positive, VCR2 . VCR(hys) = VCR2 – VCR1 . ELECTRICAL CHARACTERISTICS (Characteristics noted under conditions 6.0 V ≤ VD = VCC ≤ 16 V, –40°C ≤ TA ≤ 125°C, unless otherwise noted. Typical values are specified for TA = 25°C.) Characteristic Symbol Min Typ Max Unit TIMING ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Negative Edge Filter, Falling Edge Time Constant (VCC = 16 V, ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 400 ÁÁÁÁ ÁÁÁÁ 613.65 ÁÁÁÁÁ ÁÁÁÁÁ 1000 ÁÁÁ ÁÁÁ µs Vin(–) = 0 V, VCA = VCR = VCS = Open, VST = 10 V) (Note 1) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Propagation Delay Time (VCC = 14 V, Vin(–) = 10 V, ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ 3.45 ÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁ ÁÁÁ µs VCA = VCS = Open, VCR = 3.0 V, VST = 0 V) (Note 2) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Start Delay, Positive Edge ÁÁÁÁÁ tsdp ÁÁÁÁ 1.15 ÁÁÁÁ 1.46 ÁÁÁÁÁ 1.71 ÁÁÁ ms (Data from ICA4 , VCA1 , VCA2 ) (Note 3) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Start Delay, Negative Edge ÁÁÁÁÁ ÁÁÁÁÁ tsdn ÁÁÁÁ ÁÁÁÁ 1.19 ÁÁÁÁ ÁÁÁÁ 2.06 ÁÁÁÁÁ ÁÁÁÁÁ 2.8 ÁÁÁ ÁÁÁ ms (Data from tests VCA1 , ICA5 , VCA2 , t1) (Note 4) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Start to Output Disable Time (Note 5) ÁÁÁÁÁ ÁÁÁÁÁ tsod ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁ 107 ÁÁÁ ÁÁÁ ms ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Stall to Spark Output Propagation Delay ÁÁÁÁÁ ÁÁÁÁÁ tssd ÁÁÁÁ ÁÁÁÁ 4.6 ÁÁÁÁ ÁÁÁÁ 7.48 ÁÁÁÁÁ ÁÁÁÁÁ 8.8 ÁÁÁ ÁÁÁ ms (Data from tests ICS3 , VCS1 , VCS2 ) (Note 6) NOTES: 1. Measure time until VO > 0.2 V. The Negative Edge Filter prevents multiple output sparks caused by switching transients present at the input by disabling the once used input for the filter time t. 2. Propagation delay time measurement of input to output response; Step change Vin(–) from 0 to 10 V. Measure the time required for VO < 1.5 V. 3. tsdp = (VCA1 – VCA2 ) x CA/ICA4 ; CA = 0.1 µF. 4. tsdn = [(VCA1 – VCA2 ) x CA/ICA5 ] + t1; CA = 0.1 µF. 5. tsod = (VCS1 – VCS2 ) x CS/ICS1 ; CS = 0.1 µF. 6. tssd = (VCS1 – VCS2 ) x CS/ICS3 ; CS = 0.1 µF. 7. tsst = (VCS1 – VCS2 ) x CS/ICS2 ; CS = 0.1 µF. 9. tbit = [(VCS – 0.7 V)/ICS1 ] x CS; CS 0.1 µF. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

8 MOTOROLA ANALOG IC DEVICE DATA

Figure 7. Output Clamp Voltage Figure 8. Output Clamp Dynamic Impedance Figure 9. Supply Drain Current sets the master bias current for all precision currents on the IC. dropped in the external VCC resistor. may cause the differential amplifier to oscillate. effect sensor or reluctor sensor on the distributor. Freescale Semiconductor, Inc.

adaptive capacitor forcing an enhanced start mode dwell. frequency, which corresponds to the ramp capacitor voltage. when the stall capacitor voltage is less than 2.0 V. sources current during the “not 25%” part of the engine cycle. comparator output clears this mode. speeds, when excess dwell is impossible. Figure 10. Block Diagram Freescale Semiconductor, Inc.

10 MOTOROLA ANALOG IC DEVICE DATA

Figure 11. Typical Ignition Circuit on–chip internal clamp (Figure 11). Freescale Semiconductor, Inc.

11MOTOROLA ANALOG IC DEVICE DATA Ignition Circuit Operation Description When initially powered up, all module capacitors start discharged (0 V). The VCC capacitor will power up first, and the IC’s internal logic latches are indeterminate. The following conditions will hold: STALL = 1, because the stall capacitor voltage is less than 2.0 V; 25% = 0, because the ramp capacitor is less than the Band Gap Reference voltage (Vbg); and Icoil = 0 amps, because the stall capacitor is at 0 V. Because 25% = 0, the ramp capacitor charges towards Vr. At cranking frequencies, the ramp capacitor always exceeds the start mode threshold at the input (ZC), and therefore the stall signal resets the start mode latch upon the first ac signal (this causes the adaptive capacitor to be discharged). With the adaptive capacitor held low, very high rates of acceleration are possible. If the adaptive capacitor were allowed to adapt the dwell at low frequencies, severe limitations to engine acceleration would occur. See Figure 13. At point A, a spark from the previous cycle occurs as the field around the coil collapses rapidly. At the same time ZC (ZC (input) = high(1)) will set the 25% clock signal which commands the adaptive and ramp capacitors to discharge and the stall capacitor to charge. At point B, as the ramp capacitor voltage crosses the 1.2 V (Vbg) level, the 25% clock is cleared and the polarities and amplitude of the ramp and stall capacitor currents change to their appropriate levels. At this point the adaptive capacitor is discharged and begins to float. At point C, the coil turns on and ramps until the coil current is limited to 6.5 amps. The adaptive capacitor, at point D, remains discharged and the dwell is maximized to 6.5 amps because the start/run latch has yet to be set. At point E, ZC (ZC = high) turns the coil off causing a spark to occur and at which point a new cycle begins. As the engine frequency increases, the peak voltage on the ramp capacitor at the ac signal will fall below the start mode enable threshold level. The start mode enable detector then sets the start/run latch to the run mode (CADUMP = 0) by clocking a zero into the start/run latch at the zero cross. At this time the adaptive algorithm is evoked and the adaptive capacitor is allowed to charge and discharge according to it’s other logical inputs. After normal run mode operation is entered, the start mode may not be reentered even though the ramp capacitor voltage again exceeds the start mode enable threshold. A start mode may only be evoked by a STALL signal transition from logic 1 to 0. The STALL signal transition occurs at a ZC frequency of approximately 2.0 Hz. The IC and circuit provides for other than normal starting procedures such as push starting the engine. Since the stall capacitor will be discharged in this low frequency mode, the IC will provide a spark timing with a maximum retardation of about 6.5 ms. After the start mode operation is exited, the normal operation algorithm is entered and a different sequence of events dominate the IC’s performance. See Figures 14, 15, and 16. At point A, the spark from the previous cycle occurs and the 25% part of the cycle begins. During this part of the cycle, the stall capacitor will charge and the ramp and adaptive capacitors will discharge. At point B, the “not 25%” part of the cycle, also called the 75% part of the cycle, begins. The stall capacitor discharges, while the ramp capacitor charges. During this part of the cycle the adaptive capacitor floats. At point C, the ramp capacitor voltage equals the voltage on the adaptive capacitor. At this time, the coil turns on and the coil current ramps to the point where it is limited. When the coil current reaches the limit, point D, the adaptive capacitor begins to charge, until zero cross (ZC = 1logic(high)), point E. This turns the coil off and induces a spark. The 75% part of the cycle lasts until point E, at which time the cycle begins again. The adaptive dwell algorithm causes the engine to maintain a fixed percent of excess dwell time (if possible). The mechanism that permits this involves the floating nature of the adaptive capacitor. During engine deceleration, the initial coil turn–on might occur early, but the next coil turn–on will be retarded to it’s correct location due to the % adjusted adaptive capacitor charge time. During acceleration, the coil may not charge up as early as desired the first time, however, the spark will still be correctly slaved to the distributor. The side effect of this is that the adaptive capacitor will not receive as much charge time for that cycle and will have a lower average value the next cycle, thus starting the coil charging sooner, as can be seen in Figure 16. In this figure, the output voltage rises before the adaptive capacitor charge signal occurs. See Figure 12. In the Stall mode the output is slaved by the stall capacitor. The stall capacitor can discharge completely, but starting at point X it charges during the 25% of the engine cycle (duration of when ZC is logic high = 1). At the same time a spark from the previous cycle occurs. The DWELL signal will be high as long as the engine is in stall, but falls gradually preventing a spark at point Y when the STALL goes low starting at 2.4 V. The coil will be slaved to the stall capacitor, and at point Z the coil will charge to 6.5 amps as the stall capacitor charges to 2.0 V. At that time the STALL comparator will trip (STALL = 0) and the DWELL signal will fall, triggering a reduced spark with some retardation (6.5 ms). At this point a new cycle begins. Each of the three different modes (Stall, Start, and Run) have their own differences. The Stall capacitor controls the output in the stall mode, however is disabled in both the start and run modes. The output is clamped longer in the start mode as compared to the run mode due to the more energy/current in the coil causing a longer/bigger spark. Other less likely operating sequences are possible. For example, there is a possibility of VCC exceeding 15 V during engine operation (High battery = logic 1). Above about 17 V on Vbat, the excess current limit percentage falls to 5% to conserve IC and circuit power dissipation. Above 25 V, current to the coil is disabled. Care was placed in this design to account for all possible operating modes. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

12 MOTOROLA ANALOG IC DEVICE DATA

Figure 12. Stall Mode 60 RPM (Frequency: 2.0 Hz @ 100 ms) Freescale Semiconductor, Inc.

14 MOTOROLA ANALOG IC DEVICE DATA

Figure 15. Run Mode 2000 RPM (Frequency: 66.67 Hz @ 5.0 ms) Figure 16. Run Mode 5000 RPM (Frequency: 166.67 Hz @ 2.0 ms) Freescale Semiconductor, Inc.

15MOTOROLA ANALOG IC DEVICE DATA DW SUFFIX PLASTIC PACKAGE CASE 751G–03 ISSUE B OUTLINE DIMENSIONS D 14X B16X /C0069 /C0071 /C0076/C0069 ’"/C0048 h X 45 ""/C0048 H8X E B A e T A L C #$(’ %& ’" - %& ’ !! /C0048 /C0051 ($(! # ,’’ $#($# /C0076/C0076 /C0069/C0069 /C0051 /C0048 /C0048 /C0048 /C0048/C0051 /C0048 /C0048 /C0051 /C0048/C0051 /C0048 /C0048 /C0069/C0048 /C0048 /C0048/C0048 /C0048 /C0048 /C0048 /C0076/C0048/C0048 /C0048/C0048 /C0048 Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

16 MOTOROLA ANALOG IC DEVICE DATA

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola 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 consequential or incidental damages. “Typical” parameters which may be provided in Motorola 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. Motorola does not convey any license under its patent rights nor the rights of others. Motorola 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 Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola 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 Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA/EUROPE/Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447 JAPAN : Motorola Japan Ltd.; SPS, Technical Information Center, 3–20–1, Minami–Azabu. Minato–ku, Tokyo 106–8573 Japan. 81–3–3440–3569 Technical Information Center: 1–800–521–6274 HOME PAGE : http://www.motorola.com/semiconductors/ MC33094/D◊ Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...