MOTOROLA Freescale Semiconductor, Inc. Order Number: MC33287/D Rev. 3.1, 1999 Semiconductor Technical Data MC33287 Advance Information Contact Monitoring and Dual Low Side Protected Driver Contact Monitoring and Dual Low Side Protected Driver SEMICONDUCTOR TECHNICAL DATA Freescale Semiconductor, Inc... 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. DW SUFFIX PLASTIC PACKAGE SO20L PIN ASSIGNMENT • 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 = 110µA - Overtemperature Protection (Typical 160°C) - Outputs Fault Detection VDD1 1 20 VDD2 IN3 2 19 IN4 IN2 3 18 IN5 IN1 4 17 IN6 IN0 5 16 IN7 AD0 6 15 OUT7 AD1 7 14 OUT1 AD2 8 13 CD1 OUTD1 9 12 CD2 GND 10 11 OUTD2 ORDERING INFORMATION IN0 VDD1 Device Temperature Range Package MC33287DW -40°C to +125°C SO20L Simplified Block Diagram IN2 IN3 IN4 IN5 IN1 IN6 IN7 Internal supply AD2 VDD2 OUT7 Multiplexer 7 to 1 and diagnostic logic OUT1 AD1 AD0 Fault detector Fault detector Over temp detection Over temp detection OUTD1 OUTD2 VDD2 Control Control Current limitation GND Current limitation CD1 This document contains information on a new product. Specifications and information herein are subject to change without For notice.More Information © Motorola, Inc., 1999. All rights reserved. CD2 On This Product, Go to: www.freescale.com MC33287 Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... MAXIMUM RATINGS Ratings Symbol Min Operating Ambiant Temperature Tamb Storage Ambiant Temperature Tstorage Supply Voltage (Load Dump Conditions) Typ Max Unit - 40 85 °C - 65 105 °C VDD1 40 V Supply Voltage (Continuous) VDD1 24 V Supply Voltage (Continuous) VDD2 7 V Input Voltage On Pin IN1 (With Serial Resistor ≥ 25kΩ) VIN 40 V Total Power Dissipation (Tamb = 85°C) Pd 0,7 W V ESD (Note MIL STD 883C) VESD + 2000 V Thermal Resistance Jonction To Air (Circuit Soldered On Pcb) Rth(j-a) 100 °C/W - 2000 80 ELECTRICAL CHARACTERISTICS. Full specification is 7V ≤ VDD1 ≤ 18V ; 4,75V ≤ VDD2 ≤ 5,25V ; -40°C ≤ tamb ≤ 85°C, 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 Symbol Min Typ Max Unit Operational Supply Voltage (Full Spec) VDD1 7 12 18 V Operational Supply Voltage (Extend limit) VDD1 5 7 V Operational Supply Voltage (Full Spec) VDD2 4.75 5 5.25 V Supply Current Standby Mode (VDD1 ≤ 14V ; VCD1 = VDD2, VCD2 = 0V) All IN1 and AD1 inputs connected to ground IVDD1-0 55 110 µA 10 µA Supply Current in Drivers on Configuration (Full Spec ; VCD1 = 0V ; VCD2 = VDD2) All INi and ADi inputs connected to ground IVDD1-1 250 1500 µA IVDD2-1 650 1500 µA 1.40 3.20 Ω 5.00 Ω 13 µA SUPPLY VOLTAGE : VDD1 and VDD2 Pins IVDD2-0 DRIVERS CHARACTERISTICS : Output Driver Characteristics : OUTD1 and OUTD2 Pins Output Resistance (Full Spec and Tj ≤ 130°C) Rdson Output Resistance (Extend limit and Tj ≤ 130°C) Rdson Leakage Current (Internal current source) ILeakage Turn On Delay Time tON 1.3 10 µs Turn Off Delay Time tOFF 2.1 10 µs Output Rising Edge tRISE 2.8 10 µs Output Falling Edge tFALL 1.0 10 µs Difference between command duration and bit duration ∆bit 5 µs MC33287 1 -5 For More MOTOROLA Information On This Product, Go to: www.freescale.com 2 MC33287 Freescale Semiconductor, Inc. Figure 1. Timing Test Configuration VBAT CD1 CD2 R1 C1 R2 C2 OUTD1 VBAT R1 C1 R2 C2 OUTD2 f = 5KHz Freescale Semiconductor, Inc... R1 = 500Ω C1 = 2nF R2 = 47kΩ C2 = 250pF Figure 2. Timing Characteristics CD2 t tcommand OUTD2 ∆bit = tcommand - tBIT 80% 80% 50% 50% tBIT 20% 20% tON tOFF t tRISE tFALL PROTECTION AND LEVEL DETECTION : OUTD1 AND OUTD2 PINS Parameters Symbol Min Typ Max Unit Positive Output Clamp Vclamp 40 50 60 V Output Current Limitation (130°C ≥Tj) Ilim 300 535 750 mA Output Fault Detector Level Vfault 2,00 2,75 3,5 V Overtemperature Detection (At 25°C by function simulation) Tdetec 145 160 175 °C 0,4 x VDD2 V INPUTS : CD1 AND CD2 PINS Input Voltage Low Vil Input Voltage High Vih 0,8 x VDD2 Hysteresis Vhys 500 800 Input Current on Pin CD1 (Internal pull up and CD1 connected to ground) ICD1 -100 -30 Leakage Current on Pin CD1 (Internal pull-up CD1 connected to VDD2) Ileakage -5 Input Current on Pin CD2 (Internal pull down CD2 connected to VDD2) ICD2 10 MC33287 V 30 For More MOTOROLA Information On This Product, Go to: www.freescale.com mV -10 µA 5 µA 100 µA 3 MC33287 Freescale Semiconductor, Inc. PROTECTION AND LEVEL DETECTION : OUTD1 AND OUTD2 PINS Parameters Symbol Min Leakage Current on Pin CD2 (Internal pull-up CD1 connected to ground) Ileakage -5 Typ Max Unit 5 µA Freescale Semiconductor, Inc... DRIVERS FUNCTION TABLE : Outputs and fault detector status (Diag) CD1 OUTD1 DIAGD1 Status h H h Driver 1 normally OFF l L h Driver 1 normally ON h L l Driver 1 shorted to GND or open load l H l Driver 1 over loaded CD2 OUTD2 DIAGD2 Status l H h Driver 2 normally OFF h L h Driver 2 normally ON l L l Driver 2 shorted to GND or open load h H l 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 Symbols Min Typ Max Unit INPUTS : Pins IN0 to IN7 Input Voltage Low (Full Spec) Vil 0,4 x VDD1 V Input Voltage Low (Extended Limit) Vil 0,3 x VDD1 V Input Voltage High (Full Spec and Extended Limit) Vih 0,7 x VDD1 Hysteresis (5V ≤ VDD1 ≤ 16V) Vhys 0,5 Input Current (Vin ≤ 16V) Ileakage -5 Input Voltage Clamp (I = 100µA) Vin clamp 17 V 1 20 V 5 µA 23 V 0,4 x VDD2 V INPUTS : AD0, AD1, AD2 Pins MC33287 Input Voltage Low Vil Input VoltageHigh Vih 0,8 x VDD2 Hysteresis Vhys 500 Input Current Ileakage -5 V 750 For More MOTOROLA Information On This Product, Go to: www.freescale.com mV 5 µA 4 MC33287 Freescale Semiconductor, Inc. 8 LINE TO 1 LINE DATA MULTIPLEXER FUNCTION TABLE Inputs OUT1 AD2 AD1 AD0 x x x - l l l in0 l l h in1 l h l in2 l h h in3 h l l in4 h l h in5 h h l in6 h h h 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) Freescale Semiconductor, Inc... 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 AD1 AD0 - - - - - l h - h h h DIAGD1 - - - - - h l - h h h DIAGD2 h = High Level, l = Low Level, x = high impedance, - unknown. OUTPUTS : OUT1 AND OUT7 PINS Parameters Symbols Output Voltage Low (Iload = 2mA) Vol Output Voltage High (Iload = - 2mA) Voh MC33287 Min Typ 0,8 VDD2 For More MOTOROLA Information On This Product, Go to: www.freescale.com Max Unit 0,2 VDD2 V V 5 MC33287 Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... PINS FUNCTION DESCRIPTION MC33287 Pin Number Name Description 1 VDD1 High Voltage Power Supply (Vbat) 2 IN3 High Voltage Input 3 3 IN2 High Voltage Input 2 4 IN1 High voltage input 1 5 IN0 High Voltage Input 0 6 AD0 Adress for Mode and Input Selection 7 AD1 Adress for Mode and Input Selection 8 AD2 Adress for Mode and Input Selection 9 OUTD1 Output Driver 2 (Drain) 10 GND Common Ground 11 OUTD2 Output Driver 2 (Drain) 12 CD2 Driver 2 command 13 CD1 Driver 1 command 14 OUTI Output (Multiplexed output i = 0 to 6) and Diagi2 15 OUT7 Output 7 (Direct Output from IN7) 16 IN7 High Voltage Input 7 17 IN6 High Voltage Input 6 18 IN5 High Voltage Input 5 19 IN4 High Voltage Input 4 20 VDD2 Low Voltage Power Supply (5v) For More MOTOROLA Information On This Product, Go to: www.freescale.com 6 MC33287 Freescale Semiconductor, Inc. APPLICATION Figure 3. Typical Application Configuration 8 contacts to Vbat or GND 5V Regulator VDD Vbat 1 VDD1 2 IN3 IN4 1 9 3 IN2 IN5 1 8 4 IN1 IN6 1 7 5 IN0 IN7 1 6 6 AD0 OUT7 1 5 7 AD1 OUTi 1 4 8 AD2 CD1 1 3 9 D1 CD2 1 2 D2 1 1 VDD2 20 I/O PORT Freescale Semiconductor, Inc... 470nF MICROCONTROLLER Relay Relay (65Ω) Lamp (1,2W) Resistor 10 GND Lamp Figure 4. Contact Configuration VBAT VBAT 47KΩ 500Ω 500Ω 47KΩ 10nF 10nF Contact to VBAT MC33287 Contact to ground For More MOTOROLA Information On This Product, Go to: www.freescale.com 7 MC33287 Freescale Semiconductor, Inc. Figure 5. Electrical Shematic IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7 VALIM AD2 OUT7 AD1 8 TO 1 LOGIC MULTIPLEXER OUTi Freescale Semiconductor, Inc... AD0 VDD2 All the symbols represented without supply pin are connected to VDD2 NQ Q R S DIAG1 VDD1 VDD2 VALIM DIAG2 VALIM OUTD2 GND S CD2 Q VALIM R + - VDD2 OUTD2 Driver CD1 OUTD1 Driver OUTD1 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 For More MOTOROLA Information On This Product, Go to: www.freescale.com 8 Freescale Semiconductor, Inc... MC33287 Freescale Semiconductor, Inc. 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. 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