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| L93PI QUAD LOW SIDE DRIVER WIDE OPERATING SUPPLY VOLTAGE RANGE FROM 4.5V UP TO 45V REVERSE BIASING PROTECTED (VS = -24V) VERY LOW STANDBY QUIESCENT CURRENT < 2A PROGRAMMABLE SIGNAL TRANSFER POLARITY TTL AND CMOS COMPATIBLE INPUTS DEFINED OUTPUT OFF STATE OFF FOR OPEN INPUTS FOUR OPEN DRAIN DMOS OUTPUTS, WITH RDSon = 1.5 at 25C and VS > 6V OUTPUT CURRENT LIMITATION CONTROLLED OUTPUT SLOPE FOR LOW EMI OVERTEMPERATURE SHUT-DOWN SELECTIVE FOR EACH CHANNEL INTEGRATED OUTPUT CLAMPING FOR FAST INDUCTIVE RECIRCULATION VFB > 45V STATUS MONITORING FOR - OVERTEMPERATURE BLOCK DIAGRAM SO20 (12+4+4) ORDERING NUMBER: L93PI - DISCONNECTED GROUND OR SUPPLY VOLTAGE EDS: ALL PINS ARE GUARANTED TILL 600V DESCRIPTION The L93PI is a monolithic integrated quad low side driver realized in advanced Multipower-BCD technology. It is intended to drive lines, lamps or relais in automotive or industrial applications. IN4 CHANNEL 4 OUT4 OUT1 IN1 = & CHANNEL 1 4 PRG THERMAL SHUTDOWN DIAG DIAGNOSTIC LOGIC EN Vint REFERENCE Vlogic GND VS D95AT149 May 1998 1/8 L93PI ABSOLUTE MAXIMUM RATINGS (no damage or latch) Symbol VS Pin voltages VIN VOUT VDIAG EX Input, enable, program Output Diagnostic output Max. Energy During Flyback -24 to 10 -0.3 to 45 -0.3 to 45 200 V V V mJ Supply voltage Parameter Value -24 to 45 Unit V PIN CONNECTION (Top view) IN1 IN2 DIAG GND GND GND GND VS IN3 IN4 1 2 3 4 5 6 7 8 9 10 D94AT121A 20 19 18 17 16 15 14 13 12 11 PRG OUT1 OUT2 GND GND GND GND OUT3 OUT4 EN PIN DESCRIPTION No 8 4,5,6,7,14, 15,16,17 11 20 3 1 2 9 10 19 18 13 12 - Pin Name VS GND EN PRG DIAG IN1 IN2 IN3 IN4 OUT 1 OUT 2 OUT 3 OUT 4 NC SUPPLY VOLTAGE GROUND ENABLE PROGRAM DIAGNOSTIC INPUT 1 INPUT 2 INPUT 3 INPUT 4 OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 NOT CONNECTED Function 2/8 L93PI THERMAL DATA Symbol Rth (j-pins) Rth (j-amb) TjMon Parameter Thermal resistance junction to pin Thermal resistance junction to ambient mounted on SMPCB2 board Temperature-monitoring Switch-off-level Switch-on-level SO20 (2) - 77 to 97 SO(12+4+4) (1) 14 (Typ.) - Unit C/W C/W C C 160 to 190 140 to 170 (1) See SGS-THOMSON Microelectronics databook:"Thermal Management in Surface Mount Technology" (2) See SGS-THOMSON Microelectronics databook:"Thermal characteristics of SO20" OPERATING CONDITIONS (The electrical characteristics are valid within the below defined operating ranges, unless otherwise specified. The function will be guaranted by design until TjMON switch-OFF-level. Symbol VS VIN VEN VOUT, VD Tj Supply Voltage Input pin voltage Enable pin voltage Output pin voltage Junction temperature Parameter Value 4.5 to 40 -24 to 10 -24 to 25 -0.3 to 45 -40 to 150 Unit V V V V C ELECTRICAL CHARACTERISTICS (Refer to the test circuit, unless otherwise specified.) Symbol IQ Parameter Quiescent current Test Condition -0.3V VEN 0.5V; VS = 14V; Tj = 85C EN = high; VS 14V Inputs IN1 - IN4, PRG VINIlow VINhigh Input voltage LOW Input voltage HIGH -24V Vi 10V -24 2.8 -10 -24 3.2 -24V < Vi < 2.5V 2.5V Vi 25V VS 6V, IO = 0.3A Tj = 25C Tj = 125C VO = VS = 14V; Tj = 85C time < 200s; 10mA Io 0.3A VO 4.5V IDL 1mA Internal current limitation VS = 14V; TJ = 85C 0.3 5 0.1 45 400 10 20 50 | <2 | 2.0 10 15 1 VS V V A V V K A Min. Typ. <2 1.5 Max. 10 2 Unit A mA Input current IIN Enable Input EN VENlow VENhigh REN Input voltage LOW Input voltage HIGH Input impedance IEN Input current Outputs OUT1-OUT4 RDSon Output ON-resistor to ground 1.7 1 52 700 IOLeak VOClamp IOSC CO VDlow IDmax IDleak Leakage current Output voltage during clamping Short-circuit current Internal output capacities Output voltage LOW Max. Output current Leakage current 2.3 3.5 5 60 1200 100 0.5 15 1 A V mA pF V mA A Diagnostic output DIAG 1 3/8 L93PI ELECTRICAL CHARACTERISTICS (Continued) Symbol Timing (see Fig. 1) td,on td,off tset td,DIAG Sout On delay time Off delay time Enable settling time On or Off diagnostic delay time Output slopes 2.5 9 VS = 14V, Cext = 0pF 10mA IO 200mA 2.5 3 3.5 4.5 10 10 16 s s s s V/s Parameter Test conditions Min. Typ. Max. Unit Figure 1 VEN VINhigh VINlow active t VPRG VINhigh VINlow Non-Inverting Mode Inverting Mode t VIN VINhigh VINlow t VOUT VS 1/2VS t tset td,off td,on td,off td,on td,off td,on tset No controlled output slope for enable low D95AT150 4/8 L93PI CIRCUIT DESCRIPTION The L93PI is a quad low side driver for lines, lamps or inductive loads in automotive and industrial applications. All INputs are TTL or CMOS compatible. This allows the device to be driven directly by a microcontroller. For the noise immunity, all inputs have a Schmitt-trigger with a hysteresis of typ. 100mV. Each input stage has an input voltage protection from -24V to 10V. The device can be activated with a 'high' signal on ENable input. ENable 'low' switches the device into the sleep mode. In this mode the quiescent current is less than 10A. A high signal on PRoGramming input changes the signal transfer polarity from noninverting into the inverting mode. Normally this pin is connected to VS or GND. These pins (PRG and EN) are internally fixed at low status by open input condition. Independent of the PRoGramming input, the OUTput switches off, if the signal INput pin is not connected. Each output driver has a current limitation of min 0.4A and a seperate thermal shut-down. The thermal shut-down deactivates that output which exceeds Temperature switch off level. About 20K below this temperature threshold the output will be activated again. This means, that each output is able to sink continuously 285mA without activating thermal shut-down at 85C ambient temperature (SO20). The slew rate of the output is limited to max. 14V/s to reduce the electromagnetic interference, but not for the enable transfer characteristic (see fig. 1). An integrated active flyback voltage limitation clamps the output voltage during the flyback phase of inductive loads to typ. 50V. The power DMOS switches ON, if the device is enabled and the OUTput swings below ground. This protection avoids the activation of parasitics inside the power DMOS. The DIAGnostic is an open drain output. The logic status depends on the PRoGramming pin. If the PRG pin is 'low' the DIAG output becomes low, if the device works correctly. At thermal shut-down of one channel, disconnected ground or supply voltage the DIAGnostic output becomes high. If the PRG pin is 'high' this output is switched off at normal function and switched on at overtemperature. DIAGNOSTIC TABLE Pins Normal function H H H H L Overtemperature, disconnected ground or supply voltage Overtemperature H EN L L H H X L PRG L H L H X X IN OUT L (on) H (off) H (off) L (on) H (off) H (off) * DIAG L (on) L (on) H(off) H(off) H(off) H (off) H H X H (off) * L (on) X = not relevant * selective for each channel at overtemperature 5/8 L93PI Figure 2: Application circuit for inverting transfer polarity. BOARD VOLTAGE 14 V VCC = 5V 10 VCC INT A 0:8 D0 D1 D2 D3 Adressdecoder PRG EN VS DIAG M 2W 12 mH 250 mA 240 MICROCONTROLLER VCC = 5V 8 U538 IN 1 IN 2 IN 3 IN 4 GND OUT 1 OUT 2 OUT 3 OUT 4 VCC IN GND 50 kHz 10 50pF GND 6/8 L93PI SO20 PACKAGE MECHANICAL DATA DIM. MIN. A A1 B C D E e H h L K 10 0.25 0.4 2.35 0.1 0.33 0.23 12.6 7.4 1.27 10.65 0.75 1.27 0.394 0.010 0.016 mm TYP. MAX. 2.65 0.3 0.51 0.32 13 7.6 MIN. 0.093 0.004 0.013 0.009 0.496 0.291 0.050 0.419 0.030 0.050 inch TYP. MAX. 0.104 0.012 0.020 0.013 0.512 0.299 0 (min.)8 (max.) L h x 45 A B e K H D A1 C 20 11 E 1 10 SO20MEC 7/8 L93PI Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGSTHOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. (c) 1998 SGS-THOMSON Microelectronics - Printed in Italy - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 8/8 |
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