L93PI QUAD LOW SIDE DRIVER WIDEINPUT VOLTAGERANGE -24VUP TO +45V WIDE OPERATING SUPPLY VOLTAGE RANGE FROM 4.5V UP TO 32V REVERSE BIASING PROTECTED (VS = -24V) VERY LOW STANDBY QUIESCENT CURRENT < 2µA 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 Ω at 25°C and VS > 6V OUTPUT CURRENT LIMITATION CONTROLLEDOUTPUTSLOPE FOR LOW EMI OVERTEMPERATURE SHUT-DOWN INTEGRATED OUTPUT CLAMPING FOR FAST INDUCTIVE RECIRCULATION VFB > 45V STATUS MONITORING FOR - OVERTEMPERATURE SO20 (12+4+4) ORDERING NUMBER: L93PI - DISCONNECTED GROUND OR SUPPLY VOLTAGE ESD: ALL PINS ARE GUARANTEED TILL 2kV HUMAN BODY MODEL 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. BLOCK DIAGRAM IN4 CHANNEL 4 OUT4 OUT1 IN1 = & THERMAL SHUTDOWN CHANNEL 1 4 PRG DIAG DIAGNOSTIC LOGIC EN Vint REFERENCE Vlogic GND VS March 2000 D95AT149 1/8 L93PI ABSOLUTE MAXIMUM RATINGS (no damage or latch) Symbol VS Parameter Supply voltage Value Unit -24 to 45 V Pin voltages Input, enable, program -24 to 45 V V OUT Output -0.3 to 45 V VDIAG Diagnostic output -0.3 to 45 V 2 mJ VIN EX Max. Energy During Flyback PIN CONNECTION (Top view) IN1 1 20 PRG IN2 2 19 OUT1 DIAG 3 18 OUT2 GND 4 17 GND GND 5 16 GND GND 6 15 GND GND 7 14 GND VS 8 13 OUT3 IN3 9 12 OUT4 IN4 10 11 EN D94AT121A PIN DESCRIPTION 2/8 No Pin Name 8 VS Function 4,5,6,7,14, 15,16,17 GND GROUND 11 EN ENABLE 20 PRG PROGRAM 3 DIAG DIAGNOSTIC 1 IN1 INPUT 1 2 IN2 INPUT 2 9 IN3 INPUT 3 SUPPLY VOLTAGE 10 IN4 19 OUT 1 OUTPUT 1 INPUT 4 18 OUT 2 OUTPUT 2 13 OUT 3 OUTPUT 3 12 OUT 4 OUTPUT 4 – NC NOT CONNECTED L93PI THERMAL DATA Symbol Parameter R th (j-pins) Thermal resistance junction to pin Rth (j-amb) Thermal resistance junction to ambient mounted on SMPCB2 board TjMon SO20 (2) SO(12+4+4) (1) Unit – 14 (Typ.) °C/W 77 to 97 – °C/W Temperature-monitoring Switch-off-level Switch-on-level °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 guarantedby design until TjMON switch-OFF-level. Symbol Parameter Value Unit VS Supply Voltage 4.5 to 40 V VIN Input pin voltage -24 to 10 V V EN Enable pin voltage -24 to 45 V VOUT, VD Output pin voltage -0.3 to 45 V Junction temperature -40 to 150 °C Tj ELECTRICAL CHARACTERISTICS (Refer to the test circuit, unless otherwise specified.) Symbol IQ Parameter Quiescent current Typ. Max. Unit -0.3V ≤ VEN ≤ 0.5V; VS = 14V; Tj = 85°C Test Condition Min. <2 10 µA EN = high; VS ≤ 14V 1.5 2 mA 2.0 V Inputs IN1 - IN4, PRG VINIlow Input voltage LOW VINhigh Input voltage HIGH IIN Input current -24 -24V ≤ Vi ≤ 10V 2.8 45 V -10 15 µA V Enable Input EN VENlow Input voltage LOW -24 1 VENhigh Input voltage HIGH 3.2 VS 10 V R EN Input impedance -24V < Vi < 2.5V KΩ IEN Input current 2.5V ≤ Vi ≤ 25V 20 50 µA VS ≥ 6V, IO = 0.3A Tj = 25°C Tj = 125°C 1.7 2.3 3.5 Ω Ω Outputs OUT1-OUT4 RDSon IOLeak VOClamp Output ON-resistor to ground Leakage current VO = VS = 14V; Tj = 85°C Output voltage during clamping time < 200µs; 10mA ≤ Io ≤ 0.3A IOSC Short-circuit current CO Internal output capacities ≤1 5 µA 45 52 60 V 400 700 1200 mA 100 pF 0.3 0.5 V 5 15 mA ≤ 0.1 1 µA VO ≥ 4.5V Diagnostic output DIAG VDlow Output voltage LOW IDL ≤ 1mA IDmax Max. Output current Internal current limitation IDleak Leakage current VS = 14V; TJ = 85°C 1 3/8 L93PI ELECTRICAL CHARACTERISTICS (Continued) Symbol Parameter Test conditions Min. Typ. Max. Unit 2.5 3.5 µs 3 4.5 µs 10 µs Timing (see Fig. 1) td,on On delay time td,off Off delay time tset Enable settling time td,DIAG VS = 14V, C ext = 0pF 10mA ≤ IO ≤ 200mA On or Off diagnostic delay time Output slopes Sout 2.5 9 10 µs 16 V/µs Figure 1 VEN VINhigh VINlow active t VPRG Non-Inverting Mode VINhigh Inverting Mode VINlow t VIN VINhigh VINlow t VOUT VS 1/2VS t tset td,off td,on No controlled output slope for enable low 4/8 td,off td,on td,off td,on tset D95AT150 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 45V. 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 10µA. 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 ex- ceeds 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 85°C ambient temperature (SO20). The slew rate of the output is limited to max. 14V/µs 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 EN PRG IN OUT DIAG H L L L (on) L (on) H L H H (off) L (on) H H L H (off) H(off) H H H L (on) H(off) L X X H (off) H(off) Overtemperature, disconnected ground or supply voltage H L X H (off) * H (off) Overtemperature 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 µ F VCC INT PRG VS M MICROCONTROLLER DIAG A 0:8 8 Adressdecoder 2W D0 IN 1 OUT 1 D1 IN 2 OUT 2 D2 IN 3 OUT 3 D3 IN 4 OUT 4 12 mH 6/8 GND 250 mA 240Ω VCC IN 50 kHz GND VCC = 5V EN 10 µ H 50pF GND L93PI mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 2.35 2.65 0.093 0.104 A1 0.1 0.3 0.004 0.012 B 0.33 0.51 0.013 0.020 C 0.23 0.32 0.009 0.013 D 12.6 13 0.496 0.512 E 7.4 7.6 0.291 0.299 e 1.27 OUTLINE AND MECHANICAL DATA 0.050 H 10 10.65 0.394 0.419 h 0.25 0.75 0.010 0.030 L 0.4 1.27 0.016 0.050 SO20 K 0° (min.)8° (max.) L h x 45° A B e A1 K C H D 20 11 E 1 1 0 SO20MEC 7/8 L93PI Information furnished is believed to be accurate and reliable. However, STMicroelectronics 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 STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. 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