L9820

L9820 HIGH SIDE DRIVER ADVANCE DATA OPERATING SUPPLY VOLTAGE UP TO 25V DC CURRENT 0.3A RON < 800mΩ DIAGNOSTIC AND PROTECTION FUNCTIONS µP COMPATIBLE ENABLE INPUT FOR STAND-BY MODE DESCRIPTION The L9820 High Side Driver realized with Multipower - BCD mixed technology, drives resistive or inductive loads with one side connected to ground. The ENABLE input is TTL compatible and a diagnostic output provides an indication of short circuit and device status (thermal and overvoltage shutdown). Onchip thermal protection and short circuit protection are provided. MULTIPOWER BCD TECHNOLOGY Minidip SO8 ORDERING NUMBERS: L9820 L9820D BLOCK DIAGRAM 40mΩ February 1994 1/6 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. L9820 ABSOLUTE MAXIMUM RATINGS Symbol VS IR V5 V8 V1 I4 I5 I8 I1 Top Tj, Tstg Tjp Max Forward Voltage Reverse Bias Current at -1.3V Input Voltage (to GND) Diag. Output Voltage (to GND) Output Voltage (to GND) Supply Current Enable Input Current Diag. Out Current (sink) Output Current Operation Temperature Junction and Storage Temperature Range Detecting Temperature Parameter Value 50 –0.46 –0.3 to 20 –0.3 to 20 –0.3 to 25 Internally limited 0.5 10 Internally limited –40 to 85 –55 to 150 150 °C °C °C mA mA Unit Vdc A V V V PIN CONNECTION (Top views) Minidip SO8 THERMAL DATA Symbol Rth j-amb Parameter Thermal Resistance Junction-ambient Max. Minidip 100 SO8 200 Unit °C/W TRUTH TABLE H: high level L: low level ENABLE L H H H H FUNCTION Operating OFF Normal Operation Overvoltage Protection ON Overcurrent Protection ON Overtemperature Protection ON DIAG. STATUS H H L L L POWER STATUS L H L L L 2/6 L9820 PIN FUNCTIONS N. 1 4 5 Name POWER OUTPUT POWER SUPPLY ENABLE INPUT Supply voltage input. TTL compatible input. High level on this pin means output current ON. The low level voltage switches off the charge pump, the power stage and the diagnostic output reducing to the minimum value the quiescent current. This pin must be connected to ground. The diagnostic circuit is active in input high level condition. This output detects with Tipically 50µs delay at Tamb = 25°C the following faults: – Overvoltage condition. – Thermal shutdown. – Short circuit. The power stage current is internally limited at 1.5A. The diagnostic output is active low. The diagnostic delay time allows to avoid spurious diagnosys(i.e.: turn ON overcurrent, overvoltage spikes etc.). Description The device is provided with short circuit protection. 7 8 GROUND DIAGNOSTIC FEEDBACK ELECTRICAL CHARACTERISTICS (VS = 14.4V, –40°C≤ Tj ≤ +85°C, unless otherwise specified.) Symbol VS R on Ioff Ion VEL VEH IE Ileakd Vsat d tdd tdon tr tdoff tf Vdon Vdh Idon Tdon Tdh Parameter Operating Supply Voltage On Resistance Off State Supply Current On State Supply Current Enable Low Level Enable High Level Enable Current Diagnostic Output Leakage Current Diagnostic Output Saturated Voltage Diagnostic Delay Time Output ON Delay Time Output ON Rise Time Output OFF Delay Time Output OFF Fall Time Overvoltage Detection ON Overvoltage Hysteresis Overcurrent Detection ON Overtemperature Detection ON Overtemperature Hysteresis 0V < Vi 2V, Tj = 25°C Input > 2V, Full T range Tj < 35°C Tj = 85°C Test Condition Min. 6 0.6 Typ. Max. 25 0.8 1.2 130 300 4 0.8 Unit V Ω Ω µA µA mA V V µA µA V µs µs µs µs µs V V A °C °C 3/6 L9820 SO8 PACKAGE MECHANICAL DATA DIM. A a1 a2 a3 b b1 C c1 D E e e3 F G L M S 0.4 1.27 0.6 8 0.016 0.050 0.024 0.315 5.8 1.27 3.81 1 3.8 0.65 0.35 0.19 0.25 45 1 4.8 6.2 0.228 0.050 0.150 0.039 0.150 0.1 mm TYP inch TYP MIN MAX 1.75 0.25 1.65 0.85 0.48 0.25 0.5 MIN MAX 0.069 0.004 0.010 0.065 0.026 0.014 0.007 0.010 1.772 0.039 0.033 0.019 0.010 0.020 0.189 0.244 4/6 L9820 MINIDIP PACKAGE MECHANICAL DATA DIM. MIN. A a1 B b b1 D E e e3 e4 F I L Z 3.18 7.95 2.54 7.62 7.62 6.6 5.08 3.81 1.52 0.125 0.51 1.15 0.356 0.204 1.65 0.55 0.304 10.92 9.75 0.313 0.100 0.300 0.300 0.260 0.200 0.150 0.060 mm TYP. 3.32 0.020 0.045 0.014 0.008 0.065 0.022 0.012 0.430 0.384 MAX. MIN. inch TYP. 0.131 MAX. 5/6 L9820 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. 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. © 1996 SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Swit zerland - Taiwan - Thailand - United Kingdom - U.S.A. 6/6