L4953G

® L4953G MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO PRELIMINARY DATA 3 OUTPUTS: 9.2V (500mA); 5V (1A); 5V (100mA) STANDBY OUT1 (9.2V) AND OUT2 (5V) WITH INDEPENDENT ENABLE CONTROL FOR STANDBY MODE 2A HIGH SIDE DRIVER WITH CLAMPED OUTPUT (16V) LOGIC OUTPUT FOR: – SUPPLY UNDERVOLTAGE (LVW) – OVERVOLTAGE – THERMAL PROTECTION RESET FUNCTION IGNITION COMPARATOR REVERSE BATTERY AND LOAD DUMP PROTECTION THERMAL SHUTDOWN DESCRIPTION The L4953G contains a triple voltage regulator and a power switch. BLOCK DIAGRAM VS 7 Multiwatt15 The IC includes a monitoring circuit to warn if a low voltage or no voltage condition is occuring. In stand-by output is active as long as possible even when in thermal shutdown or any other fault conditions. The STCAP pin allows the use of a reserve supply capacitor that will hold enough energy for the 5V Stand-by line to allow the µP to store data. LOAD DUMP POW GND 3 5V, 100mA REGULATOR STAND-BY 5V, 1000mA REGULATOR SWITCHED 11 STAND-BY 5V 9 OUT 5V EN 5V STCAP EN 9.2V 1 12 9.2V, 500mA REGULATOR SWITCHED 10 OUT 9.2V 2 16V, 2A VOLTAGE CLAMP SWITCHED 4 OUT 16V EN 16V 15 VCAP REF GEN Vref1 LVW THRESHOLD Vref2 Reset THRESHOLD IGNITION THRESHOLD OVERVOLTAGE UNDERVOLTAGE THERMAL PROT RESET IGN INP 5 PROT SIG GND 8 6 D97AU579 13 LVW/FAULT 14 RESET IGN OUT April 1999 This is preliminary information on a new product now in development. Details are subject to change without notice. 1/6 L4953G ABSOLUTE MAXIMUM RATINGS Symbol V SDC VSTR IO Top Tstg Transient Supply Voltage Output Current Operating Temperature Range Storage Temperature Parameter DC Operating Supply Voltage Value –0.6 to 28 50 internally limited –40 to 85 –55 to 150 °C °C Unit V V PIN CONNECTION (Top view) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 EN 16V RESET LVW/FAULT STCAP STBY5V OUT 9.2V OUT 5V PGND VS IGNOUT IGNINP OUT 16V SGND EN 9.2V EN 5V TAB CONNECTED TO PIN 8 D97AU580 THERMAL DATA Symbol Rth j-case Parameter Thermal Resistance Junction-case Value 2 Unit °C/W 2/6 L4953G ELECTRICAL CHARACTERISTICS (VS = 14V, Tamb = –40 to 85°C, unless otherwise specified.) Symbol VS En Parameter Operating Supply Voltage Output Noise Voltage Any reg. supply, f = 100Hz to 200KHz Test Condition Min. 11 200 Typ. Max. 18 400 Unit V µV 5V STAND-BY OUTPUT VOLTAGE V5st-by ∆Vline ∆Vload Vdropout Iqst-by Stand-by Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current @ Stand-by 11V < VS < 16V 5mA < IO < 100mA Iout = 100mA Vbat = 5.5V SW < 1.5V 5V ST-BY = 100µA Load 4.75 5 5 12 0.2 0.3 5.25 50 100 0.6 0.65 V mV mV V mA 5V/1000mA SWITCHED OUTPUT VOLTAGE Vout5 ∆Vline ∆Vload Vdropout Iq Ilim SWon SW off SW hyst R in 5V Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Current Limit Switch ON Switch OFF Switch Hysteresis Input Impedance 100 10 200 40 no load 7V < VS < 18V 5mA < IO < 1A Vbat = 5.5V IO = 1A 75mA < IO < 1A Output Shorted to GND IO = 75mA 1 3.5 1.5 500 4.75 5 5 12 1.0 30 1.3 5.25 50 50 1.5 100 V mV mV V mA A V V mV KΩ 9.2V/500mA SWITCHED OUTPUT VOLTAGE Vout9.2 ∆Vline ∆Vload Vdropout Iq Ilim SVR SWon SW off SW hyst R in 9.2V Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Current Limit Supply Voltage Rejection Switch ON Switch OFF Switch Hysteresis Input Impedance 100 10 200 40 no load 11V < VS < 18V 5mA < IO < 500mA 5.5V < Vin < 9.2V IO = 500mA 50mA < IO < 500mA Output Shorted to GND f = 3KHz 500 45 3.5 1.5 500 9.2 ±5% 5 12 0.4 10 600 75 50 50 0.9 25 V mV mV V mA mA dB V V mV KΩ HIGH SIDE DRIVER WITH CLAMPED OUTPUT (16V) Vout16 IO Vdropout SWon SW off SW hyst R in Max. Output Voltage Output Continuous Current Dropout Voltage Switch ON Switch OFF Switch Hysteresis Input Impedance 100 10 200 40 VS = 18V VS = 16V 5V < Vin < 15V IO = 2A 3.5 1.5 500 14.6 2 0.5 1.0 16.2 V A V V V mV KΩ 3/6 L4953G ELECTRICAL CHARACTERISTICS (continued) FAULT Symbol TH fault HYSTfault OUTfault Ileak Parameter Fault Threshold Fault Threshold Hysteresis Fault Output Voltage Fault Leakage Current Test Condition Min. 7 100 200 Typ. Max. 8.5 400 1.5 50 Unit V mV V µA RESET THON reset THOFF HYST OUT reset Reset ON Threshold Reset OFF Threshold Reset Threshold Hysteresis Reset Output Voltage Reset Leakage Current MIN @ VMEM = 4.75V MAX @ V MEM = 5.25V 0.938 0.97 75 175 0.97 0.99 300 1.5 5.0 Vst-by Vst-by mV V µA reset reset ILOAD = 2mA Ileak IGNITION TH ign HYST IGN IGN ign Ign Comparator Positive Threshold Ign Comparator Threshold Hysteresis Ignition Comparator Output High Ignition Comparator Output Low 5.5 100 3.5 –0.5 6 300 7.5 500 Vst-by 1.5 V mV V V high low 4/6 L4953G DIM. MIN. A B C D E F G G1 H1 H2 L L1 L2 L3 L4 L7 M M1 S S1 Dia1 21.9 21.7 17.65 17.25 10.3 2.65 4.25 4.63 1.9 1.9 3.65 0.49 0.66 1.02 17.53 19.6 mm TYP. MAX. 5 2.65 1.6 1 0.55 0.75 1.27 17.78 1.52 18.03 20.2 22.2 22.1 17.5 10.7 4.55 5.08 22.5 22.5 18.1 17.75 10.9 2.9 4.85 5.53 2.6 2.6 3.85 0.862 0.854 0.695 0.679 0.406 0.104 0.167 0.182 0.075 0.075 0.144 0.019 0.026 0.040 0.690 0.772 MIN. inch TYP. MAX. 0.197 0.104 0.063 0.039 0.022 0.030 0.050 0.700 0.060 0.710 0.795 0.874 0.870 0.689 0.421 0.179 0.200 0.886 0.886 0.713 0.699 0.429 0.114 0.191 0.218 0.102 0.102 0.152 OUTLINE AND MECHANICAL DATA Multiwatt15 V 5/6 L4953G I nformation 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. The ST logo is a registered trademark of STMicroelectronics © 1999 STMicroelectronics – Printed in Italy – All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. http://www.st.com 6/6