HIP9020 Programmable Quad Buffer with Pre and Post Scaler Dividers October 1993 Features Description • Sine Wave Speedometer Input The HIP9020 is a Vehicle Speed Sensor (VSS) Buffer IC. It receives sinusoidal vehicle speed information from a speedometer signal source. The signal is amplified and squared before frequency processing is done. The circuit provides pin programmable integer prescaler and postscaler dividers to scale the output frequencies. The prescaler divider output of the frequency doubler is mode selected for 1 and 6 through 11. The postscaler mode is selected to the Output 3 with a divide by 1 or 2. The four VOX outputs are open collector drivers. • Input Limiting . . . . . . . . . . . ±0.25V to ±100V (with 40kΩ) • Over Voltage Protection • Current Limiting • Programmable Prescaler 1, 6 - 11 • Post Scaler Frequency Divide by 1 or 2 • Drivers with 15mA/24V Capability • Outputs 4 Separate Square Waves Speed Sensor Input (SSI) - When current limited with a 40kΩ source impedance from the vehicle speed sensor, the SSI input is capable of functioning over a wide range of input signal. The limiter and squaring action is derived from the zero crossing of the input signal. The signal is converted into a square wave with a controlled hysteresis squaring amplifier. • Internal Regulator and Bias Source • 0kHz to 6kHz Input Signal Range • -40oC to +125oC Operating Temperature Range Applications • Prescaler Power Supply - The power supply pin 2 input is intended to operate from a 5.0V ± 0.3V source. The internal reference sources are derived from a temperature stable bandgap; including an optional 5.7V shunt regulator which may be used as shown in Figure 2. • Buffer/Limiter • Signal Interface • Automotive Speedometer • Automotive Speed Control Output Drivers - Each output driver is an open NPN collector with a zener clamp level of typically 35V and short circuit current limiting. Each output is capable of sinking 15mA of current. • Automotive Tachometer Ordering Information PART NUMBER TEMPERATURE RANGE HIP9020AP -40oC HIP9020AB -40oC PACKAGE to +125oC 14 Lead Plastic DIP to +125oC 20 Lead Plastic SOIC (W) Pinouts HIP9020 (PDIP) TOP VIEW GND 1 14 VO1 2 13 VO2 POSS 3 12 VO3 SSI 4 11 VO4 VCC BUF 5 PRSO 6 POSI 7 HIP9020 (SOIC) TOP VIEW 10 PRSS–A 9 PRSS–B 8 PRSS–C CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999 10-54 GND 1 20 VO1 VCC 2 19 NC NC 3 18 NC POSS 4 17 VO2 SSI 5 16 VO3 BUF 6 15 VO4 NC 7 14 PRSS–A NC 8 13 NC PRSO 9 12 PRSS–B POSI 10 11 PRSS–C File Number 2790.2 HIP9020 Programmable Quad Buffer Functional Block Diagram BUF (BUFFER OUTPUT) PRSS (PRESCALER SELECT) A B C 14 12 11 6 5 BUFFER 10 4 SSI 5 SQ. AMP WITHHYS. LIMITER 7 8 PRESCALER DIV-BY 1 AND 6 - 11 FREQ DOUBLER (SPEED SENSOR INPUT) POSI 9 6 9 DRIVER (V, IPROT) 14 20 VO1 DRIVER (V, IPROT) 17 Q1 10 DIV BY 2 DIV BY 2 Q1 (POST SCALER INPUT) PRSO (PRESCALER OUTPUT) 13 VO2 OUTPUTS 12 VOLT. REG. & CURRENT SOURCE DRIVER (V, IPROT) 16 DRIVER (V, I PROT) 15 VO3 11 VO4 Q4 1 GND 1 2 2 VCC 4 3 POSS VOX (POST SCALER SELECT) EACH OUTPUT PROTECTED BY A COLLECTOR-TO-BASE ZENER DIODE CLAMP 30V CIRCLED NUMBERS ARE 20 LEAD SOP PACKAGE 20Ω LOGIC SELECT FOR INPUT (SSI) TO OUTPUT (VOX) DIV-BY NUMBER PRSS-A PRSS-B PRSS-C VO1, VO2, VO3 (POSS HIGH) DIV-BY 0 0 0 2 1 2 1 0 0 1 12 6 12 6 0 1 0 14 7 14 7 0 1 1 16 8 16 8 1 0 0 18 9 18 9 1 0 1 20 10 20 10 1 1 0 22 11 22 11 10-55 VO4 (POSS HIGH) DIV-BY VO1, VO2 (POSS LOW) DIV-BY VO3, VO4 (POSS LOW) DIV-BY Specifications HIP9020 Absolute Maximum Ratings Thermal Information Supply Voltage to Pin 2, VCC (Shunt Regulator) . . . . . +24VDC Max through 300Ω and a Series Diode (1N4005 or Equiv.) or +5.3V Max Direct Voltage Supply Source to VCC Output Voltage (Sustained) to V01,V02,V03,V04 . . . . . . . . . . +24V Output Load Current (Sink) . . . . . . . . . . . . . . . . . . . . . . . . . +15mA Input Voltage (Through 40kΩ, See Figure 1) . . . . . . . . . . . . . ±100V Thermal Resistance θJA Plastic DIP and SOIC Package . . . . . . . . . . . . . . . . . . . . . 90oC/W Maximum Package Power Dissipation up to +85oC . . . . . . . 720mW Derate above 85oC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1mW/oC Operating Temperature Range . . . . . . . . . . . . . . . . -40oC to +125oC Storage Temperature Range . . . . . . . . . . . . . . . . . -65oC to +150oC Maximum Junction Temperature. . . . . . . . . . . . . . . . . . . . . . +150oC Lead Temperature (Soldering 10s) . . . . . . . . . . . . . . . . . . . . +265oC CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Electrical Specifications TA = -40oC to +125oC, VCC = 5V ± 0.3V, Unless Otherwise Specified PARAMETERS SYMBOL TEST CONDITIONS MIN MAX UNITS - 12 mA Power Supply (VCC) Supply Current ICC SSI Input (Test Point - T.P.A., See Figure 1) Max. Operating Frequency fS(MAX) 40kΩ Source, 0.01µF Input Shunt - 6 kHz 40kΩ Source, 0.01µF Input Shunt ±0.25 ±100 V Input Hysteresis 40kΩ Source, 0.01µF Input Shunt 0.15 0.45 V Input Bias Current 40kΩ Source, 0.01µF Input Shunt -0.5 +0.5 µA Input Signal Range Other Inputs (PRSS, POSS, POSI - See Function Block Diagram) Input Low Voltage VIL - 1.5 V Input High Voltage VIH 3.5 - V Input Current High IIH VCC = VIN = 4.7V - 10 µA Input Current Low IIL VCC = 5.3; VIN = 0.4V -10 - µA PRSO Output Output Voltage Low VOL VCC = 5V - 0.4 V Output Voltage High VOH VCC = 5V 4.6 - V Output Clamp Voltage ICC = 1mA 24 45 V Output Current Limit ISC Current Pulsed 15 30 mA Output Leakage VOUT = 24V - 30 µA IOUT = 15mA - 1 V IOUT = 1mA - 0.4 V Driver Outputs (V01, V02, V03, V04) Output Saturation Voltage VSAT VBATT 1N4005 300 0.01µF 1K VCC SSI 40K PRSO VO1 VO2 VO3 VO4 OUTPUT TO SPEEDOMETER ODOMETER, SPEED CONTROL, ETC. OUTPUTS (OPEN NPN COLLECTORS) POSI A BUF OPTIONAL OUTPUT GND B C PRESCALER SELECT INPUTS POSS TA = +25oC 25 OUTPUT CURRENT, IOX (mA) T.P.A. SPEED SENSOR INPUT TYP. 5.7V 20 15 10 DRIVE LIMITED CURRENT OUTPUT SATURATED OUTPUT “ON” CHARAC. 5 0 0 0.1 0.2 0.3 0.4 0.5 0.6 OUTPUT VOLTAGE VOX WITH VCC = 5 V, VSAT (V) FIGURE 1. TYPICAL AUTOMOTIVE APPLICATION CIRCUIT FIGURE 2. TYPICAL OUTPUT DRIVER SATURATED “ON” CHARACTERISTIC 10-56 HIP9020 All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. 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