CS4161 85 mA Dual H-Bridge Odometer Driver with Divide by Select and UVLO http://onsemi.com DIP–8 N SUFFIX CASE 626 8 1 PIN CONNECTIONS AND MARKING DIAGRAM COILA+ COILA– SENSOR Features Undervoltage Lockout Cross–Conduction Prevention Logic Divide by 1 and Divide by 2 Modes Guaranteed Monotonic On–Chip Flyback Diodes Fault Protection – Overvoltage – Load Dump Protection to 60 V • • • • • • 8 1 GND A WL, L YY, Y WW, W CS4161YN8 AWL YYWW The CS4161 is a Stepper Motor Driver that implements an H–Bridge design in order to drive two coils in an eight step sequence per revolution in the divide by 1 mode; 16 step sequence in the divide by 2 mode. The H–Bridge is capable of delivering 85 mA to the load. The sequencer insures that the odometer is monotonic. This sequencer is configured such that simultaneous conduction does not occur. Before each successive output sequence the part is taken through a state where both outputs are turned off individually. This tends to minimize the inductive kick back energy that the part must absorb. On chip clamp diodes are across each output to protect the part from the kick back energy that it must absorb. The CS4161 includes overvoltage and short circuit protection circuitry. It is lead for lead compatible with the CS8441. The CS4161 includes an additional undervoltage lockout (UVLO) function which disables the output stage until the supply voltage rises above 5.6 V, typically. The UVLO has hysteresis to prevent any power up glitching. VCC COILB+ COILB– SELECT = Assembly Location = Wafer Lot = Year = Work Week ORDERING INFORMATION Device CS4161YN8 Package Shipping DIP–8 50 Units/Rail VCC SENSOR Coil Driver A Input Comp. Sequencer SELECT COILA+ COILA– Overvoltage and Short Circuit Protection 1 2 Coil Driver B GND COILB+ COILB– Figure 1. Block Diagram Semiconductor Components Industries, LLC, 2001 March, 2001 – Rev. 6 1 Publication Order Number: CS4161/D CS4161 ABSOLUTE MAXIMUM RATINGS* Rating Value Unit –0.5 to 24 –0.5 to 60 V V –0.3 to VCC + 0.3 V Operating Temperature Range –40 to 125 °C Storage Temperature Range (TSTG) –65 to 150 °C Junction Temperature Range –40 to 150 °C 2.0 kV 260 peak °C Supply Voltage (VCC) (Note 1.): Continuous 100 ms Pulse Transient Input Voltage (VIN) ESD (Human Body Model) Lead Temperature Soldering: Wave Solder: (through hole styles only) (Note 2.) 1. –40°C to +125°C. 2. 10 second maximum. *The maximum package power dissipation must be observed. ELECTRICAL CHARACTERISTICS (–40°C ≤ TA ≤ 125°C, 6.5 V ≤ VCC ≤ 15.5 V; unless otherwise stated. All voltage shall be referenced to GND unless otherwise noted. Overvoltage shutdown of coils occurs when VCC > 16 V.) Test Conditions Min Typ Max Unit 6.5 6.5 – – – – 15.5 24 35 VDC VDC VDC – 24 35 mA – 16 – 23 V VCC Initial Power Up UVLO Hysteresis 5.1 200 5.6 600 6.1 1000 V mV Characteristic Supply, VCC Supply Voltage Range –40°C ≤ TA ≤ 125°C –40°C ≤ TA ≤ 25°C Transient Pulse, 100 ms Supply Current VCC = 15.5 VDC, Outputs not loaded. Overvoltage Shutdown Undervoltage Lockout Voltage Speed Sensor Input, SENSOR Input Frequency Range – – 0.2 1.0 kHz Switching Threshold – 1.2 – 2.6 VDC Hysteresis – 300 500 – mVDC 0.8 VDC ≤ VIN ≤ VCC – 0.1 ±1.0 µA – 0 – VCC VDC Input Bias Current Input Voltage Range Operating Input Voltage 10 kΩ Resistor in Series – – –15 to VCC VDC Input Clamp Current I Clamp at VIN = 0 VDC – –0.4 –5.0 mA Divider Select Input, SELECT Logic 0 Input Voltage – – – 100 mVDC Logic 1 Input Voltage – 3.0 – VCC VDC Logic 0 Input Current 0 V ≤ VIN ≤ 100 mV – –1.0 –100 µA Logic 1 Input Current 3.0 V ≤ VIN ≤ 15.5 VDC – 0.75 2.0 mA 198 210 222 Ω – 80 – mH – – 0.35 %/°C Coil Output Drivers Coil Load +25°C Coil Inductance Coil Resistance Temperature – Coefficient http://onsemi.com 2 CS4161 ELECTRICAL CHARACTERISTICS (continued) (–40°C ≤ TA ≤ 125°C, 6.5 V ≤ VCC ≤ 15.5 V; unless otherwise stated. All voltage shall be referenced to GND unless otherwise noted. Overvoltage shutdown of coils occurs when VCC > 16 V.) Characteristic Test Conditions Min Typ Max Unit VCC – 1.5 V VCC – 1.6 V VCC – 1.75 V VCC – 2.0 V VCC – 0.9 V VCC – 1.0 V VCC – 1.1 V VCC – 1.2 V – – – – VDC VDC VDC VDC – – ±100 – µA Short Circuit Threshold I Coil A + I Coil B – – 275 400 mA Short Circuit Turn–Off Delay – – 5.0 – µs Coil Output Drivers (continued) Energized Coil Voltage (Note 3.) (Both Polarities) A and B VCC = 6.5 VDC VCC = 10 VDC VCC = 15.5 VDC, –20°C ≤ TA ≤ 125°C VCC = 15.5 VDC, –40°C ≤ TA ≤ –20°C De–energized Coil Leakage Current Short Circuit Protection 3. Voltage across the coils shall be measured at the specific voltages, but shall also be within linearly interpolated limits. PACKAGE PIN DESCRIPTION PACKAGE PIN # DIP–8 PIN SYMBOL 1 GND 2 COILA+ Output stage, when active, this lead supplies current to COIL A. 3 COILA– Output stage, when active, this lead supplies current to COIL A. 4 SENSOR Input signal from wheel speed or engine rpm. 5 SELECT Selects divide by 1 or divide by 2 mode. 6 COILB– Output stage, when active, this lead supplies current to COIL B. 7 COILB+ Output stage, when active, this lead supplies current to COIL B. 8 VCC FUNCTION Ground connection. Supply voltage. http://onsemi.com 3 CS4161 CIRCUIT OPERATION SPEED SENSOR INPUT The polarity definition for the coil driver outputs is as follows: SENSOR is a PNP comparator input which accepts either a sine wave or a square wave input. This input is protected from excursions above VCC as well as any below ground as long as the current is limited to 1.5 mA. It has an active clamp set to zero volts to prevent negative input voltages from disrupting normal operation. The sensor input can withstand 150 VDC as long as the input current is limited to 1.5 mA max. using a series resistor of 100 kΩ. Polarity Connect Coil + Connect Coil – Positive (+) VCC GND Negative (–) GND VCC DIVIDER SELECT INPUT The speed sensor input frequency is either divided by one or divided by two depending on the state of the SELECT input as follows: Logic 0 = divide by 2. Logic 1 = divide by 1. COIL DRIVER OUTPUTS Simultaneously energizing the source and sink on either leg is not permitted, i.e. Q1 & Q2 or Q3 & Q4 cannot be energized simultaneously. Circuit function is not affected by inductive transients due to coil loads as specified in the Transition States section. The transition states occur as indicated in Table 1 without any intermediate states permitted. Table 1. Transition States State Coil A Coil B 0 + + 1 OFF + 2 – + 3 – OFF 4 – – 5 OFF – 6 + – 7 + OFF Short Circuit VCC Q1 Q3 Sense Resistor Coil Q2 Q4 Short Circuit GND Sense Resistor Figure 2. Coil Driver Output http://onsemi.com 4 Overvoltage and Short Circuit Protection CS4161 State # 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 SSI Coil A Coil B Figure 3. Divide by 1 (8 Step Mode), SELECT = 1 State # 0 1 2 3 4 5 6 7 0 SSI Coil A Coil B Figure 4. Divide by 2 (16 Step Mode), SELECT = 0 COIL A 210 ±12 Ω 80 mH COILA+ D1 1.0 A 600 PIV IGN COILA– VCC R1 3.9 Ω 500 mW Buffered Speed Signal (Open Collector Drive) R3 15 kΩ Z1 50 V 500 mW C1 10 µF C2 0.1 µF C3 0.01 µF R2 100 kΩ Figure 5. Odometer Application Diagram http://onsemi.com 5 COIL B 210 ±12 Ω 80 mH COILB+ COILB– CS4161 SENSOR SELECT GND CS4161 PACKAGE DIMENSIONS DIP–8 N SUFFIX CASE 626–05 ISSUE L 8 NOTES: 1. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 2. PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS). 3. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 5 –B– 1 4 DIM A B C D F G H J K L M N F –A– NOTE 2 L C J –T– MILLIMETERS MIN MAX 9.40 10.16 6.10 6.60 3.94 4.45 0.38 0.51 1.02 1.78 2.54 BSC 0.76 1.27 0.20 0.30 2.92 3.43 7.62 BSC --10 0.76 1.01 N SEATING PLANE D M K G H 0.13 (0.005) M T A M B M PACKAGE THERMAL DATA Parameter DIP–8 Unit RΘJC Typical 52 °C/W RΘJA Typical 100 °C/W http://onsemi.com 6 INCHES MIN MAX 0.370 0.400 0.240 0.260 0.155 0.175 0.015 0.020 0.040 0.070 0.100 BSC 0.030 0.050 0.008 0.012 0.115 0.135 0.300 BSC --10 0.030 0.040 CS4161 Notes http://onsemi.com 7 CS4161 ON Semiconductor and are 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, 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. 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