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| MOTOROLA Order Number: MC33287/D Rev. 3.1, 1999 Semiconductor Technical Data Advance Information MC33287 Contact Monitoring and Dual Low Side Protected Driver SEMICONDUCTOR TECHNICAL DATA Contact Monitoring and Dual Low Side Protected Driver The MC33287 has been designed to interface between switching contacts (to battery or ground) and a microcontroller. This circuit includes 2 low side drivers, resistive and inductive loads or lamps. * 8 High Voltage Input Triggers : - 1 Direct Output and 7 Multiplexed, - Direct Interface with Microcontroller * 2 Low Side Drivers - Current Limitation : Ilim Typ = 0.5A (Each Output) - Internal Clamp : Vclamp Typ = 50V - Low Power Consumption in Standby Mode : Imax = 110A - Overtemperature Protection (Typical 160C) - Outputs Fault Detection DW SUFFIX PLASTIC PACKAGE SO20L PIN ASSIGNMENT VDD1 IN3 IN2 IN1 IN0 AD0 AD1 AD2 OUTD1 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 VDD2 IN4 IN5 IN6 IN7 OUT7 OUT1 CD1 CD2 OUTD2 GND 10 ORDERING INFORMATION Device MC33287DW Temperature Range -40C to +125C Package SO20L IN0 IN1 Simplified Block Diagram IN2 IN3 IN4 IN5 IN6 IN7 VDD1 Internal supply VDD2 AD2 OUT7 Multiplexer 7 to 1 and diagnostic logic OUT1 AD1 AD0 Fault detector Fault detector OUTD1 Over temp detection Control VDD2 Over temp detection Control OUTD2 Current limitation Current limitation GND CD1 CD2 This document contains information on a new product. Specifications and information herein are subject to change without notice. (c) Motorola, Inc., 1999. All rights reserved. MC33287 MAXIMUM RATINGS Ratings Operating Ambiant Temperature Storage Ambiant Temperature Supply Voltage (Load Dump Conditions) Supply Voltage (Continuous) Supply Voltage (Continuous) Input Voltage On Pin IN1 (With Serial Resistor 25k) Total Power Dissipation (Tamb = 85C) V ESD (Note MIL STD 883C) Thermal Resistance Jonction To Air (Circuit Soldered On Pcb) Symbol Tamb Tstorage VDD1 VDD1 VDD2 VIN Pd VESD Rth(j-a) - 2000 80 Min - 40 - 65 Typ Max 85 105 40 24 7 40 0,7 + 2000 100 Unit C C V V V V W V C/W ELECTRICAL CHARACTERISTICS. Full specification is 7V VDD1 18V ; 4,75V VDD2 5,25V ; -40C tamb 85C, unless otherwise noted. Extended limit is : 5V VDD1 7V and other parameters are full spec. in this mode, inputs IN1and lowside drivers are still functionnal with downgraded characteristics. Parameters SUPPLY VOLTAGE : VDD1 and VDD2 Pins Operational Supply Voltage (Full Spec) Operational Supply Voltage (Extend limit) Operational Supply Voltage (Full Spec) Supply Current Standby Mode (VDD1 14V ; VCD1 = VDD2, VCD2 = 0V) All IN1 and AD1 inputs connected to ground Supply Current in Drivers on Configuration (Full Spec ; VCD1 = 0V ; VCD2 = VDD2) All INi and ADi inputs connected to ground VDD1 VDD1 VDD2 IVDD1-0 IVDD2-0 IVDD1-1 IVDD2-1 250 650 7 5 4.75 5 55 12 18 7 5.25 110 10 1500 1500 V V V A A A A Symbol Min Typ Max Unit DRIVERS CHARACTERISTICS : Output Driver Characteristics : OUTD1 and OUTD2 Pins Output Resistance (Full Spec and Tj 130C) Output Resistance (Extend limit and Tj 130C) Leakage Current (Internal current source) Turn On Delay Time Turn Off Delay Time Output Rising Edge Output Falling Edge Difference between command duration and bit duration Rdson Rdson ILeakage tON tOFF tRISE tFALL bit -5 1 1.3 2.1 2.8 1.0 1.40 3.20 5.00 13 10 10 10 10 5 A s s s s s MC33287 MOTOROLA 2 MC33287 Figure 1. Timing Test Configuration VBAT R1 CD1 OUTD1 R2 C1 C2 VBAT R1 CD2 f = 5KHz R1 = 500 C1 = 2nF R2 = 47k C2 = 250pF OUTD2 R2 C1 C2 Figure 2. Timing Characteristics CD2 t tcommand OUTD2 80% 50% 20% bit = tcommand - tBIT 80% tBIT 50% 20% tON tFALL tOFF tRISE t PROTECTION AND LEVEL DETECTION : OUTD1 AND OUTD2 PINS Parameters Positive Output Clamp Output Current Limitation (130C Tj) Output Fault Detector Level Overtemperature Detection (At 25C by function simulation) INPUTS : CD1 AND CD2 PINS Input Voltage Low Input Voltage High Hysteresis Input Current on Pin CD1 (Internal pull up and CD1 connected to ground) Leakage Current on Pin CD1 (Internal pull-up CD1 connected to VDD2) Input Current on Pin CD2 (Internal pull down CD2 connected to VDD2) Vil Vih Vhys ICD1 0,8 x VDD2 500 -100 800 -30 -10 0,4 x VDD2 V V mV A A A Symbol Vclamp Ilim Vfault Tdetec Min 40 300 2,00 145 Typ 50 535 2,75 160 Max 60 750 3,5 175 Unit V mA V C Ileakage -5 5 ICD2 10 30 100 MC33287 MOTOROLA 3 MC33287 PROTECTION AND LEVEL DETECTION : OUTD1 AND OUTD2 PINS Parameters Leakage Current on Pin CD2 (Internal pull-up CD1 connected to ground) Symbol Ileakage Min -5 Typ Max 5 Unit A DRIVERS FUNCTION TABLE : Outputs and fault detector status (Diag) CD1 h l h l OUTD1 H L L H DIAGD1 h h l l Status Driver 1 normally OFF Driver 1 normally ON Driver 1 shorted to GND or open load Driver 1 over loaded CD2 l h l h OUTD2 H L L H DIAGD2 h h l l Status Driver 2 normally OFF Driver 2 normally ON Driver 2 shorted to GND or open load Driver 2 over loaded H = High Level for Drivers Outputs, L = Low Level for Drivers Outputs h = High Level for Logic Signals, l = Low Level for Logic Signals. NOTES : CD1 is active on low level (driver 1 is on when CD1 is low), CD2 is active on high level (driver 2 is on when CD2 is high). The DIAGDI output is neither latched for filtered. LOGIC CHARACTERISTICS Characteristic INPUTS : Pins IN0 to IN7 Input Voltage Low (Full Spec) Input Voltage Low (Extended Limit) Input Voltage High (Full Spec and Extended Limit) Hysteresis (5V VDD1 16V) Input Current (Vin 16V) Input Voltage Clamp (I = 100A) INPUTS : AD0, AD1, AD2 Pins Input Voltage Low Input VoltageHigh Hysteresis Input Current Vil Vih Vhys Ileakage 0,8 x VDD2 500 -5 750 5 0,4 x VDD2 V V mV A Vil Vil Vih Vhys Ileakage Vin clamp 0,7 x VDD1 0,5 -5 17 20 1 5 23 0,4 x VDD1 0,3 x VDD1 V V V V A V Symbols Min Typ Max Unit MC33287 MOTOROLA 4 MC33287 8 LINE TO 1 LINE DATA MULTIPLEXER FUNCTION TABLE Inputs OUT1 AD2 x l l l l h h h h AD1 x l l h h l l h h AD0 x l h l h l h l h in0 in1 in2 in3 in4 in5 in6 DIAGDi h = High Level, l = Low Level, x = high impedance, - unknown. DIAGDi is the value of the selectionned internal fault detector (See below) inO, ini...in6 are the normalised values of the INi respectives inputs (INi = Vbat -ini = VDD2) FAULT DETECTOR SELECTION. This table presents the sequential patterns which enable to select the diagnostic of driver 1 (diagd1) or driver 2 (diagd2) Inputs OUTi AD2 h h AD1 l h h h AD0 h h l h DIAGD1 DIAGD2 h = High Level, l = Low Level, x = high impedance, - unknown. OUTPUTS : OUT1 AND OUT7 PINS Parameters Output Voltage Low (Iload = 2mA) Output Voltage High (Iload = - 2mA) Symbols Vol Voh 0,8 VDD2 Min Typ Max 0,2 VDD2 Unit V V MC33287 MOTOROLA 5 MC33287 PINS FUNCTION DESCRIPTION Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Name VDD1 IN3 IN2 IN1 IN0 AD0 AD1 AD2 OUTD1 GND OUTD2 CD2 CD1 OUTI OUT7 IN7 IN6 IN5 IN4 VDD2 Description High Voltage Power Supply (Vbat) High Voltage Input 3 High Voltage Input 2 High voltage input 1 High Voltage Input 0 Adress for Mode and Input Selection Adress for Mode and Input Selection Adress for Mode and Input Selection Output Driver 2 (Drain) Common Ground Output Driver 2 (Drain) Driver 2 command Driver 1 command Output (Multiplexed output i = 0 to 6) and Diagi2 Output 7 (Direct Output from IN7) High Voltage Input 7 High Voltage Input 6 High Voltage Input 5 High Voltage Input 4 Low Voltage Power Supply (5v) MC33287 MOTOROLA 6 MC33287 APPLICATION Figure 3. Typical Application Configuration 8 contacts to Vbat or GND 5V Regulator VDD Vbat 1 VDD1 IN3 IN2 IN1 IN0 AD0 AD1 AD2 D1 GND VDD2 IN4 IN5 IN6 IN7 OUT7 OUTi CD1 CD2 D2 20 I/O PORT 470nF 2 19 3 18 4 17 5 16 6 15 MICROCONTROLLER 7 14 Relay 8 13 Relay (65) Lamp (1,2W) Resistor 9 12 10 11 Lamp Figure 4. Contact Configuration VBAT 47K VBAT 500 47K 10nF 500 10nF Contact to VBAT Contact to ground MC33287 MOTOROLA 7 MC33287 Figure 5. Electrical Shematic IN0 VALIM IN1 IN2 IN3 IN4 IN5 IN6 IN7 AD2 OUT7 AD1 8 TO 1 LOGIC MULTIPLEXER OUTi AD0 VDD2 All the symbols represented without supply pin are connected to VDD2 DIAG1 NQ Q VDD1 R S VDD2 DIAG2 VALIM VALIM GND OUTD2 CD2 S R Q VALIM + - VDD2 OUTD2 Driver CD1 OUTD1 OUTD1 Driver NOTE : The only difference between the low side driver 1 and 2 is the polarity of the command. Also, there are an internal pull-up at pin CD1, an internal pull-down at pin CD2 and an extra inverted is placed after the CD1 input trigger. MC33287 MOTOROLA 8 MC33287 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 "Typical" 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 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 un authorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the parts. Motorola and an Equal Employment Opportunity/Affirmative Action Employer. are registered trademarks of Motorola, Inc. Motorola, Inc. is 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 Technical Information Center: 1-800-521-6274 JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center, 3-20-1, Minami-Azabu, Minato-ku, Tokyo 106-8573 Japan. 81-3-344-3569 ASIA / PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre, 2, Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong. 852-26668334 HOME PAGE: http://www.motorola.com/semiconductors MC33287/D |
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