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CS4161 85 mA Dual H-Bridge Odometer Driver with Divide by Select and UVLO
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.
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DIP-8 N SUFFIX CASE 626
PIN CONNECTIONS AND MARKING DIAGRAM
1 CS4161YN8 AWL YYWW GND COILA+ COILA- SENSOR 8 VCC COILB+ COILB- SELECT
* * * * * *
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
VCC Input Comp. Coil Driver A COILA+ COILA-
A WL, L YY, Y WW, W
= Assembly Location = Wafer Lot = Year = Work Week
ORDERING INFORMATION
Device CS4161YN8 Package DIP-8 Shipping 50 Units/Rail
SENSOR
Sequencer
Overvoltage and Short Circuit Protection
SELECT
B1 B2 Coil Driver B COILB+ COILB-
GND
Figure 1. Block Diagram
(c) Semiconductor Components Industries, LLC, 2001
1
March, 2001 - Rev. 6
Publication Order Number: CS4161/D
CS4161
ABSOLUTE MAXIMUM RATINGS*
Rating Supply Voltage (VCC) (Note 1.): Input Voltage (VIN) Operating Temperature Range Storage Temperature Range (TSTG) Junction Temperature Range ESD (Human Body Model) Lead Temperature Soldering: 1. -40C to +125C. 2. 10 second maximum. *The maximum package power dissipation must be observed. Wave Solder: (through hole styles only) (Note 2.) Continuous 100 ms Pulse Transient Value -0.5 to 24 -0.5 to 60 -0.3 to VCC + 0.3 -40 to 125 -65 to 150 -40 to 150 2.0 260 peak Unit V V V C C C kV C
ELECTRICAL CHARACTERISTICS (-40C TA 125C, 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 Supply, VCC Supply Voltage Range -40C TA 125C -40C TA 25C Transient Pulse, 100 ms VCC = 15.5 VDC, Outputs not loaded. - VCC Initial Power Up UVLO Hysteresis 6.5 6.5 - - 16 5.1 200 - - - 24 - 5.6 600 15.5 24 35 35 23 6.1 1000 VDC VDC VDC mA V V mV Test Conditions Min Typ Max Unit
Supply Current Overvoltage Shutdown Undervoltage Lockout Voltage Speed Sensor Input, SENSOR Input Frequency Range Switching Threshold Hysteresis Input Bias Current Input Voltage Range Operating Input Voltage Input Clamp Current Divider Select Input, SELECT Logic 0 Input Voltage Logic 1 Input Voltage Logic 0 Input Current Logic 1 Input Current Coil Output Drivers Coil Load Coil Inductance Coil Resistance Temperature
- - - 0.8 VDC VIN VCC - 10 k Resistor in Series I Clamp at VIN = 0 VDC
- 1.2 300 - 0 - -
0.2 - 500 0.1 - - -0.4
1.0 2.6 - 1.0 VCC -15 to VCC -5.0
kHz VDC mVDC A VDC VDC mA
- - 0 V VIN 100 mV 3.0 V VIN 15.5 VDC
- 3.0 - -
- - -1.0 0.75
100 VCC -100 2.0
mVDC VDC A mA
+25C - Coefficient
198 - -
210 80 -
222 - 0.35
mH %/C
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CS4161
ELECTRICAL CHARACTERISTICS (continued) (-40C TA 125C, 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 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, -20C TA 125C VCC = 15.5 VDC, -40C TA -20C - 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 100 - - - - - VDC VDC VDC VDC A Test Conditions Min Typ Max Unit
De-energized Coil Leakage Current Short Circuit Protection Short Circuit Threshold I Coil A + I Coil B Short Circuit Turn-Off Delay
- -
- -
275 5.0
400 -
mA s
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 1 2 3 4 5 6 7 8 PIN SYMBOL GND COILA+ COILA- SENSOR SELECT COILB- COILB+ VCC Ground connection. Output stage, when active, this lead supplies current to COIL A. Output stage, when active, this lead supplies current to COIL A. Input signal from wheel speed or engine rpm. Selects divide by 1 or divide by 2 mode. Output stage, when active, this lead supplies current to COIL B. Output stage, when active, this lead supplies current to COIL B. Supply voltage. FUNCTION
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CS4161
CIRCUIT OPERATION SPEED SENSOR INPUT 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 k. 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 0 1 2 3 4 5 6 7 Coil A + OFF - - - OFF + + Coil B + + + OFF - - - OFF
The polarity definition for the coil driver outputs is as follows:
Polarity Positive (+) Negative (-) Connect Coil + VCC GND Connect Coil - 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.
Short Circuit VCC Q1 Q3 Sense Resistor Overvoltage and Short Circuit Protection
Coil Q2 Q4
Short Circuit GND Sense Resistor
Figure 2. Coil Driver Output
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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 # SSI
0
1
2
3
4
5
6
7
0
Coil A
Coil B
Figure 4. Divide by 2 (16 Step Mode), SELECT = 0
COIL A 210 12 80 mH
COIL B 210 12 80 mH
COILA+
COILA-
COILB+
COILB- SENSOR
CS4161 D1 1.0 A 600 PIV IGN R1 3.9 500 mW Z1 50 V 500 mW C1 10 F VCC SELECT
GND
C2 0.1 F
R3 15 k
Buffered Speed Signal (Open Collector Drive)
R2 100 k
C3 0.01 F
Figure 5. Odometer Application Diagram
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CS4161
PACKAGE DIMENSIONS
DIP-8 N SUFFIX CASE 626-05 ISSUE L
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. DIM A B C D F G H J K L M N 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 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
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5
-B-
1 4
F
NOTE 2
-A- L
C -T-
SEATING PLANE
J N D K
M
M TA
M
H
G 0.13 (0.005) B
M
PACKAGE THERMAL DATA Parameter RJC RJA Typical Typical DIP-8 52 100 Unit C/W C/W
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CS4161
Notes
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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.
PUBLICATION ORDERING INFORMATION
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CS4161/D

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