ST L4953G handbook
Contents
1. AVie Line Regulation S fiV Vs 18V 5 80 mV AVeas Load Regulation 5mA lo 500mA 1 50 mV Vaopu Dropout Voltage 55V Vm 92V lo 500mA 04 09 V ta Quiescent Current 50mA lt lo lt 500ma_ 10 mA im f Current Limit Output Shortedio ND_ 500 600 mA Supply Voltage Rejection tf 3KHz 45 75 Jal Swon Swthon lo a J o V Swoft swinorr 1 1 TT t5 V SWhyst_ Switch Hysteresis 100 200 500 mV Rn jimpuimpedane 10 40 r HIGH SIDE DRIVER WITH CLAMPED OUTPUT 16V Vans Max Output Voltage Vs 18V 146 162 V Jo Output Continuous Current vs 16v 2 Ta Veropour_ Dropout Voltage BNIB lo 2A os t0 v SWon SwihON 1 lah j v SWof SwihOFF o t9 V SWhyst Switch Hysteresis 100 200 500 mV 4 3 6 L4953G ELECTRICAL CHARACTERISTICS continued FAULT Symbol parameter Test Condition Min Typ Max Unit THma FaultThreshod Jooo 0 JT 85 V HYSTiax Fault Threshold Hysteresis 100 200 400 my OUTe amp FaultOutputVotage J Tt v tek Faut Leakage Curent 80 mA RESET THON reset Reset ON Threshold MIN O Vem 4 75V 0 938 Vst by MAX ae VMEM 5 25V Be ae ee er ee O2. IGNINP OUT 16V SGND EN 9 2V EN 5V 9 8 7 6 5 4 3 2 1 TAB CONNECTED TO PIN 8 D97AU580 THERMAL DATA Symbol Parameter Vaue Unit Thermal Resistance Junction case SI 2 6 L4953G ELECTRICAL CHARACTERISTICS Vs 14V Tamb 40 to 85 C unless otherwise specified Symbol ___Parameter__ Test Condition _ Min Typ Max unit Vs Operating Supply Votage qn E En Output Noise Voltage Any reg supply f 100Hz to 200KHz 5V STAND BY OUTPUT VOLTAGE Vou Stand by Output Voltage Jal 5 525 V AVine Line Regulation ttVcvs lt tev Ts 50 mV AVoas Load Regulation 5mA lo i00mA 12 100 mV lou 100MA Vea 55V 02 O6 V last by Quiescent Current Stand by SW 1 5V 0 3 0 65 mA 5V ST BY 100uA Load 5V 1000mA SWITCHED OUTPUT VOLTAGE AVine Line Regulation 7V Vs i8V 5 50 mV AVoa Load Regulation SmA lt lo lt tA 12 s0 mV Vat 5 5V_lo 1A to fs v dy Quiescent Current 75mA lt lo lt 1A 830 100 mA lim Current Limit Output ShortedtoGND_ 1 13 A SWon Switthon lo 75m 1 1 1 1 85 V Wer Sih E e c a veg SWhyst_ Switch Hysteresis Ss 100 200 s00 mV Rn jimputimpedane Tt 40 r 9 2V 500mA SWITCHED OUTPUT VOLTAGE Voss 9 2V Output Votage noaa V
3. UTreset_ Reset Output Voltage lann s mA as V dex Reset Leakage Curent o 50 mA IGNITION TH ign Ign Comparator Positive 5 5 7 5 V Threshold HYST ign Ign Comparator Threshold 100 300 500 mV Hysteresis High Ignition Comparator OutputLow os t5 V SI 4 6 L4953G OUTLINE AND MECHANICAL DATA Lt om oss ao faa 066 075 0020 0 080 1 02 1 27 1 52 0 040 0 050 0 060 17 53 17 78 18 03 0 690 0 700 0 710 19 6 0 772 qa2 Jore 219 222 225 0 862 0 874 0 886 217 221 225 0 854 0 870 0 886 17 65 18 1 0 695 B is 0 689 0 699 L4 103 107 10 9 0 406 0 421 0 429 Rmi mo 425 455 485 0 167 0 179 0 191 463 5 08 0 200 0 218 Estas Aes ose E st 19 26 0075 o102 Multiwatt15 V Dat 365 385 fora 0 182 5 6 L4953G 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 infor
4. kY LA953G MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO PRELIMINARY DATA m 3 OUTPUTS 9 2V 500mA 5V 1A 5V 100mA STANDBY a OUT1 9 2V AND OUT2 5V WITH INDE PENDENT ENABLE CONTROL FOR STAND BY MODE m 2A HIGH SIDE DRIVER WITH CLAMPED OUTPUT 16V a LOGIC OUTPUT FOR SUPPLY UNDERVOLTAGE LVW OVERVOLTAGE THERMAL PROTECTION Multiwatt15 m RESET FUNCTION a IGNITION COMPARATOR a REVERSE BATTERY AND LOAD DUMP The IC includes a monitoring circuit to warn if a PROTECTION low voltage or no voltage condition is occuring a THERMAL SHUTDOWN In stand by output is active as long as possible even when in thermal shutdown or any other fault DESCRIPTION STET The STCAP pin allows the use of a reserve sup ply capacitor that will hold enough energy for the 5V Stand by line to allow the uP to store data The L4953G contains a triple voltage regulator and a power switch BLOCK DIAGRAM REGU STAND BY 5V 1000mA POW GND REGU SW EN 5V 9 2V STCAP EN 9 2V TCHED OVERVOLTAGE REF UNDERVOLTAGE GEN THERMAL PROT RESET IGN INP SIG GND Q o O LVW FAULT RESET April 1999 1 6 This is preliminary information on a new product now in development Details are subject to change without notice L4953G ABSOLUTE MAXIMUM RATINGS Operating Temperature Range Storage Temperature PIN CONNECTION Top view EN 16V RESET LVW FAULT STCAP STBY5V OUT 9 2V OUT 5V PGND Vs IGNOUT
5. mation 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 IST
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ST L4953G handbook