Order Number: XC33487/D Rev. 1.3, 06/2001 MOTOROLA Semiconductor Technical Data Preliminary XC33487 Automotive Dual High Side Driver This device called “Flasher Lite” is a dual high side power switch dedicated for automotive applications. In comparison with mechanical relays, this device offers higher reliability as well as protection and diagnostic features. The device consists of two independent 25mΩ Rdson switches in a surface mount package. It can be directly interfaced with a microcontroller for control and diagnostic functions and includes a current recopy function. The device is fully protected against overcurrents, short-circuits and incorporates an overtemperature shutdown. It can be directly and continuously supplied by the battery and offers a very low quiescent current in standby mode. • Designed for Automotive Applications • Junction Temperature Range from - 40°C to 150°C • Operating Voltage Range from 8V to 40V • Reverse Battery protected up to -14V with no external components • Surface Mount Package, Thermally Enhanced • 25mOhms max Rdson per Channel at 25°C • Independant Status Lines, one per channel • Overtemperature Protection with Hysteresis • Open Load Detection in On-State • Short-Circuit Protection • Loss of gnd, loss of Vbat protection • Independant Current Recopy, one per channel • Under Voltage Shutdown • ESD Protection 2kV • Current Limitation greater than 25A to Allow load Inrush Current • Standby Current less than 1uA at Vbat =14V and ambiant temperature DW SUFFIX SO20WB Package CASE 751D-05 PIN CONNECTIONS Vbat 1 Vbat Out1 20 Vbat 2 19 Vbat 3 18 Out2 Out1 4 17 Out2 Vbat 5 16 Vbat Vbat 6 15 Vbat Cur R1 7 14 Cur R2 In 1 8 13 In 2 St1 9 12 St2 Vbatc 10 11 Gnd Simplified Application Schematic 5V 5V 10k 10k + - VBAT OUT-1 IN-1 I/O IN-2 I/O MCU 21W 21W ST1 I/O ST2 I/O Load switch Flasher Lite Cur R1 A/D Cur R2 OUT-2 A/D Gnd 1k 21W 21W 1k This document contains information on a new product under development. Motorola reserves the right to change or discontinue this product without notice. TM © Motorola, Inc., 2001. All rights reserved. XC33487 MAXIMUM RATINGS Ratings Symbol Value Unit ELECTRICAL RATINGS Vbat Voltage with Respect to Gnd : Continuous/Pulse Vbat -14 to + 40 V Out-1 & Out-2 Voltage with Respect of Gnd : Continuous/Pulse Vout -0.3 to 40 V Out-1 to Vbat & Out-2 to Vbat voltage : Continuous/Pulse Vout 40 V IN-1, IN-2, ST-1, ST-2 Voltage : Continuous/Pulse Vin -0.3 to 7 V Cur R1, Cur R2 Voltage : Continuous/Pulse Vcr -0.3 to 7 V ESD all Pins Vesd +/-2000 V Out-1, Out-2 DC Output Current Ioutdc 8 Amp Out-1, Out-2 Output Current : Pulse Ioutp 40 Amp IN-1, IN-2, ST-1, ST-2, Cur R1, Cur R2 Input Current Iin +/-5 mA Junction Temperature Tj - 40 to 150 °C Storage Temperature Range Tst - 65 to +150 °C Thermal Resistance Junction to Case Rthjc 12 °C/W Thermal Resistance Junction to Ambient (note 1) Rthja 60 °C/W Power Dissipation at Tcase 105°C (note 2) Pd 3.75 W THERMAL RATINGS NOTES : 1. Device mounted with minimum pcb dimensions. 2. Assuming a 150°C maximum junction temperature. Figure 1. Block Diagram and Application Schematic Battery Vbat Cb Out-2 Out-2 Charge Pump CHANNEL 2 Left 5V I/O Cr 2 10K I/O MCU I/O IN-2 R I/O R I/O A/D Input Trigger IN-2 St-2 R Out-1 Over Temp Cur R2 St-2 Over Current Vbatc Open Load IN-1 Current Recopy Fault St-1 Monitoring ST1 CHANNEL 1 Right Cur R1 R : 10k typical Rcr : 500Ω to 1kΩ typical Cb : 10nF to 470nF Cur R1 21+21+.... Right side 5V Current copy resistor Out-1 Flasher Lite Rcr GND Automotive Dual High Side Driver 2 XC33487 ELECTRICAL CHARACTERISTICS (Vbatc and Vbatp from 9 to 16 V and junction temperature Tj from -40° to 150°C, unless otherwise noted) Characteristics Description Symbol Unit min. typ. Conditions max. Nominal Operating Voltage Vbat 9 16 V Functional Operating Voltage Vbat 8 35 V Under Voltage Threshold Vuv 6 8 V Vbat Standby Supply Current Istdby 1 Vbat Standby Supply Current Istdby 25 µA Vbat <14V & Vin = 0V, Tj = 125°C Supply Current in On State Ion 8 20 mA IN-1 & IN-2 @3.5V, no fault, Vbat<14V Drain to Source on Resistance Rdson 17 22 mΩ Iout =4A,Tj = 25°C Drain to Source on Resistance Rdson 22 30 mΩ Iout = 4A, Tj = 125°C High Current Limitation Ilim 30 Short Circuit Limitation Ilim 10 Hot Openload Threshold Iol 0.6 A Output Body Diode Voltage Vbd 0.7 V Reverse Battery Drain to Source Voltage Vrb Vbat to Output Breakdown Voltage Vdss Vbat to Out : Leakage Current Iout-leak Vin-1, Vin-2 : Input Voltage Low Threshold Vil Vin-1, Vin-2 : Input Voltage High Threshold Vih 3.5 Vin-1, Vin-2 : Input Voltage Hysteresis Vih 0.2 Vin-1, Vin-2 : Input Current Iin Status Output Voltage Vst Thermal Shutdown Tshut Thermal Shutdown Hysteresis Thyst Current Recopy Ratio Cr Current Recopy Ratio Accuracy Cr-ac -10 10 % Vout >Vbat -1V, Iout from 2A to 4A Tj -40°C to 125°C, Vbat 9 to 16V Current Recopy Clamp Voltage At 10mA Vclst 5.5 7 V Iout=9A Frequency Operation Fop 150 Hz Maximum Output Positive Slew Rate Tr 0.01 0.2 0.5 V/µs Maximum Output Negative Slew Rate Tf 0.15 0.5 1.5 V/µs Turn On delay time Tdon 50 150 µs load = 6Ω, from Vin/2 to10% Vout Turn Off delay time Tdoff 70 150 µs load = 6 Ω, from Vin/2 to 90% Vout 7 Vbat <14V & Vin = 0V, Tj = 25°C A Vout>1V Vout<1V 200 40 mV Iout = -4A, Tj = 25°C Iout = -4A, Vbat = -14V, Tj = 125°C V In-1 and In-2 @ 0V, Vout = 0, Iout -0.25mA 10 µA Vin =0V, Vbat =40V, Vout=0V 1.5 V V 0.7 0.9 V 18 30 µA Vin-1, Vin-2 = 3.5V 0.5 V Ist = 1mA; Output in Fault °C 150 °C 10 1/1000 Vout>Vbat -1V, Iout from 2A to 4A Tj -40°C to 125°C, Vbat 9 to 16V Automotive Dual High Side Driver 3 XC33487 FUNCTIONAL TRUTH TABLE Conditions IN1 IN2 OUT1 OUT2 St1 St2 Normal Operation L H L H L L H H L H L H L L H H H H H H H H H H Undervoltage X X L L H H Overtemperature Channel 1 Overtemperature Channel 2 Overtemperature Channel 1/Channel 2 H X H X H H L X L X L L L H L H L L Open Load Channel 1 Open Load Channel 2 H X X H H X X H L H H L Overcurrent Channel 1 Overcurrent Channel 2 H X X H X X X X H H H H PIN FUNCTION DESCRIPTION Pin No. Name/Function Description 1, 2, 5, 6, 15, 16, 19, 20 Vbat Supply Voltage 10 Vbatc Supply Voltag 3, 4, 18, 17 OUT1 OUTPUT Channel 1 OUT 2 OUTPUT Channel 2 Pins 3 and 4 are the output 1 terminals. Pins 17 and 18 are the output 2 terminals. They are directly connected to the source of the power MOSFET. The Rdson is 25mΩ max per output at 25°C. Its value increases up to 40mΩ at 150°C junction temperature. 8, 13 IN 1 INPUT Channel 1 IN 2 INPUT Channel 2 These are the device input pins, which directly control their associated output. The thresholds are CMOS compatible. When the input is in low state, the associated output MOSFET is off. When input is high, the MOSFET is turned on and the load is activated. When both inputs are low, the device is in standby mode and its supply current is less than 10uA for Vbat up to 14V. 7, 14 Cur R1 Current Recopy Channel 1 Cur R2 Current Recopy Channel 2 9, 12 These are the power supply pins of the device. These pins are directly connected with the lead frame of the package and are tied to the drain of the switching MOSFET. These pins can be directly connected to the battery voltage. In addition to their supply functions, these pins participate to the thermal behaviour of the device in conducting the heat from the switching MOSFET to the printed circuit board. Vbatc provide the supply voltage to the control die. for for ST-1 Status for Channel 1 ST-2 Status for Channel 2 These pins corresponds to a current recopy for each outputs. Their high accuracy permit to allow a precise monitoring of the outputs loads as well as to detect a failed lamp among several lamps. An external resistor must be connected to these pins which can be tied to a microcontroller A/D for analog measurements These pins are the channel 1 and 2 status. Their internal structure is an open drain with an internal clamp at 6V. An external pull up connected to the 5V is needed. When the device is in normal condition the status is high. If open load or overtemperature occurs on one channel, the associated output status will be pulled low. 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