L9351 HIGH SIDE DRIVER .. .. .. .. ADVANCE DAT A LOW SATURATION VOLTAGE TTL COMPATIBLE INPUT WIDE SUPPLY VOLTAGE VERY LOW QUIESCENT CURRENT (30mA max) NO EXTERNAL COMPONENTS INTERNAL RECIRCULATION PATH FOR FAST DECAY OF INDUCTIVE LOAD CURRENT SHORT CIRCUIT PROTECTION FAILSAFE OPERATION : OUTPUT IS OFF IF THE LOGIC INPUT IS LEFT OPEN Pentawatt ORDERING NUMBER : L9351 DESCRIPTION The L9351 is a monolithic integrated circuit designed to drive grounded resistive, inductive or mixed loads from the power supply positive side. Very low standby current (30mA max.) and internally implemented protections against load dump and reverse voltages make the device very useful in automotive applications. No external components are required because the output recirculation clamping zener is included in the chip. This zener can withstand a recirculation peak current of 550mA on a 80mH/25Ω load. The device is self-protected against overtemperature, overvoltage and overcurrent conditions. The L9351 operates over the full battery voltage range, from 4.5V (cold cranking) up to 24V (jump starting). The L9351 withstands revers battery conditions (13V) and supply voltage transients up to 80V limiting the maximum output transistor VEC to 70V by an internalzener. ON and OFFdelaytimes of 25µs max in any outputstatus, includingrecirculating situation, allow PWM use of L9351. BLOCK DIAGRAM October 1992 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/6 L9351 PIN CONNECTION (top view) Note : Pin 3 must be left open or connected to ground. ABSOLUTE MAXIMUM RATINGS Symbol VS Value Unit D.C. Supply Voltage D.C. Reverse Supply Voltage Load Dump: 5ms ≤ trise ≤ 10ms τf Fall Time Constant = 100ms, Rsource ≥ 0.5Ω Parameter 24 –13 60 V V V Low Energy Spikes: Rsource ≥ 10Ω, trise = 1µs, tf = 2ms, fr Repetition Frequency = 0.2Hz ±85 V –0.3 to 7 V Vi Input Voltage IO Output Current Ptot Tj, Tstg Internally Limited Total Power Dissipation at Tcase = 90°C Junction and Storage Temperature 17.1 W –55 to 150 °C Value Unit 80 3.5 °C/W °C/W THERMAL DATA Symbol Rth j-amb R th j-case 2/6 Parameter Thermal Resistance Junction-ambient Thermal Resistance Junction-case Max. Max. L9351 ELECTRICAL CHARACTERISTICS (VS = 14.4V, – 40°C ≤ Tj ≤ + 125°C unless otherwise specified). Symbol Parameter VS Operating Supply Voltage VIH Input Voltage High VIL Input Voltage Low Test Conditions Min. Typ. 4.5 4.5 < VS < 24 Max. 24 2.0 Unit V V 0.8 V Input Current 0.8 < VI < 5.5V 40 µA IPL Output Leakage Current VO = 0V VI < 0.8V VS = 24V 140 µA Vsat Output Saturation Voltage II ISC Output Short Circuit Current IQ Quiescent Current 1 IO = 125mAVS = 4.5V 0.5 V IO = 225mAVS = 14.4V 0.5 V IO = 550mAVS = 14.4V 0.7 V 0.6 1.5 VI > 2V VI < 0.8V Stand-by Condition VZO Negative Output Zener Voltage RL = 25Ω L = 80mH on VI Transition from ”1” to ”0” Ton Turn ON Delay Toff Turn OFF Delay Resistive Load R L = 25Ω, Tj = 25°C (fig.2) – 36 A 30 mA 100 150 µA – 30 – 24 V 20 µs 25 µs Figure 1 : Typical Automotive Application Circuit. 3/6 L9351 Figure 2 : Resistive Load. Figure 3 : Inductive Load. 4/6 L9351 PENTAWATT PACKAGE MECHANICAL DATA mm DIM. MIN. inch TYP. MAX. A 4.8 C 1.37 D MIN. TYP. MAX. 0.189 0.054 2.4 2.8 0.094 0.110 D1 1.2 1.35 0.047 0.053 E 0.35 0.55 0.014 0.022 F 0.8 1.05 0.031 0.041 F1 1 1.4 0.039 0.055 G 3.4 0.126 0.134 0.142 G1 6.8 0.260 0.268 0.276 H2 10.4 H3 10.05 0.409 10.4 0.396 0.409 L 17.85 0.703 L1 15.75 0.620 L2 21.4 0.843 L3 22.5 0.886 L5 2.6 3 0.102 0.118 L6 15.1 15.8 0.594 0.622 L7 6 6.6 0.236 0.260 M 4.5 0.177 M1 4 0.157 Dia 3.65 3.85 0.144 0.152 E L D1 C D M A M1 L1 L2 L5 G1 G H3 L3 L7 F H2 F1 Dia. L6 5/6 L9351 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. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. 1994 SGS-THOMSON Microelectronics - All Rights Reserved HEPTAWATT is a Trademark of SGS-THOMSON Microelectronics SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A. 6/6