OmnIrel OM183-5 12 5SC OM184-5 12 5SC OM185-5 12 5SC OM186-5 12 5SC handbook
Contents
1. Output Voltage Deviation S ruit Loan i Minimum Input Output Differential V Short Circuit Current A 0 0 20 0 1 2 3 4 0 5 10 15 20 25 30 35 50 25 0 25 50 75 100 125 150 Output Current A Input Output Differential V Temperature C OM186ST Dropout Voltage OM186ST Short Circuit Current OM186ST Load Regulation 2 3 0 0 10 p AL 3A 0 05 25 C e e Output Voltage Deviation 96 a e a Minimum Input Output Differential V Short Circuit Current A FULL LOAD fi fi 0 0 20 0 1 2 0 5 10 15 20 25 30 35 50 25 0 25 50 75 100 125 150 Output Current A Input Output Differential V Temperature C Omnirel amp 3 3 68 OM183 5SC OM186 15ST APPLICATION NOTES This family of three terminal regulators is easy to use and has all the protection features that are expected in high performance voltage regulators They are short circuit protected have safe area protection as well as thermal shutdown to turn off the regulator should the temperature exceed about 165 C These regulators offer lower dropout voltage and more precise reference tolerance Further the reference stability with temperature is improved over older types o2. 25 C 10 35 mV OM183 4 5 6 12 V Vin 15 V OS lour S lent roan 12 36 mV T 25 C 24 72 mV OM183 4 5 6 15 V Viw 20 V 0 lt lour S lea toan 20 40 mV T 25 C 40 100 mV Current Limit OM183 5V Vin 10V 75 9 5 A OM183 12V Vin 17V L5 9 5 A OM183 15V Vin 20 V 75 9 5 A OM184 5V Vy 2 10V 5 0 6 5 A OM184 12 V Vn 17V 5 0 6 5 A OM184 15V Vin 20 V 5 0 6 5 A OM185 5V Vin 10V 3 0 4 0 A OM185 12V Vy 217 V 3 0 4 0 A OM185 15V Vin 20 V 3 0 4 0 A OM186 5V Vin 10V 15 1 8 A OM186 12V Vn 17V 1 5 1 8 A OM186 15V Vin 20 V 1 5 1 8 A Dropout Voltage OM183 4 5 6 5 V AVour 50 mV lous leu Loap 6 3 6 5 V OM183 4 5 6 12 V AVour 120 MV loy leui Loan 13 3 13 5 V OM183 4 5 6 15 V AVour 180 mV lour lesa pean 17 3 17 5 V Quiescent Current Vin lt 30V 5 0 10 0 mA Thermal Regulation T4 25 C 30 ms pulse OM183 5 12 15 V 0 002 0 01 ol N OM184 5 12 15 V 0 003 0 015 ol N OM185 5 12 15 V 0 004 0 02 ol N OM186 5 12 15 V 0 008 0 04 9o WN Ripple Rejection f 120 Hz Coy 25 pF Tantalum lour leu LOAD OM183 4 5 6 5 V Vn 8V 63 dB OM183 4 5 6 12 V Vn 15V 55 dB OM183 4 5 6 15 V Vin 2 20V 60 dB Temperature Stability 0 5 Long Term Stability T 125 C 1000 Hrs 0 03 1 0 RMS Output Noise of Vout TA 25 C 10 Hz lt f lt 10 kHz 0 003 Thermal Resistance Junction To Case TO 257AA 3 5 C W TO 258AA 2 75 C W 3 3 67 Omnirel amp OM183 5SC OM186 15ST TYPICAL PERFORMANCE C
3. D 0 OM183 5 0 0 OM183 5 12 15SC OM185 5 12 15ST OM184 5 12 15SC OM186 5 12 15ST 7 5A 5A 3A 1 54 LOW DROPOUT FIXED VOLTAGE POSITIVE REGULATORS Three Terminal 5V 12V 15V Low Dropout TO 257 TO 258 Fixed Voltage Regulators FEATURES e 5V 12V and 15V Output Voltage Operates Down to 1V Dropout 015 Line Regulation 01 Load Regulation Output Voltage Trimmed to 1 Hermetic TO 257 and TO 258 Isolated Package DESCRIPTION These three terminal positive fixed voltage regulators are designed to provide 7 5A 5A 3A and 1 5A with higher efficiency than conventional voltage regulators The devices are designed to operate to 1 Volt input to output differential and the dropout voltage is specified as a function of load current All devices are pin compatible with older three terminal regulators Supplied in the easy to use hermetic metal TO 257 and TO 258 JEDEC packages these devices are ideally suited for Military applications where small size hermeticity and high reliability are required ABSOLUTE MAXIMUM RATINGS Input VON GO s eda SERE pues eia dole eames IEEE a s 30 V Operating Junction Temperature Range 55 C to 150 C Storage Temperature anaana eae 65 C to 150 C Output Current OM183 5 12 158C 2 ee 7 5A OM184 5 12 15850 2 cscs be ERR Reg x RN Rx ADR XRUR RR 5A OMIS85 5 12 IbST i 2440206 rRI Rb E nad ee detente heeds 3A OM186 5 12 15S Te inte mmu S
4. HARACTERISTICS 0M183SC Dropout Voltage OM183SC Short Circuit Current 0M183SC Load Regulation nm N e e Al 7 5A e gt e a 150 C co e e e FULL LOAD gt a Output Voltage Deviation S FER 0 0 0123 45 67 8 9 10 0 5 10 15 20 25 30 35 50 25 0 25 50 75 100 125 150 Output Current A Input Output Differential V Temperature C OM184SC Dropout Voltage OM184SC Short Circuit Current 0M184SC Load Regulation 0 10 r 31 Al 5A Minimum Input Output Differential V Short Circuit Current A a nm 25 on TTE I 0 20 2 3 4 5 6 0 5 10 15 20 25 30 35 50 25 0 25 50 75 100 125 150 Output Current A Input Output Differential V Temperature C Output Voltage Deviation a ee a FULL LOAD fi 1 e Minimum Input Output Differential V ai ce Short Circuit Current A O NOURA OOO ow c OM185ST Dropout Voltage OM185ST Short Circuit Current OM185ST Load Regulation A 12 3A nm e e e cn e e r e gt T 25 C nm
5. f regulators The only circuit difference between using this family and older regulators is that they require an output capacitor for stability Overload Recovery When power is first turned on as the input voltage rises the output follows the input allowing the regulator to start up into very heavy loads During the start up as the input voltage is rising the input to output voltage differential remains small allowing the regulator to supply large output currents With high input voltage a problem can occur wherein removal of an output short will not allow the output voltage to recover Older regulators such as the 7800 series also exhibited this phenomenon so it is not unique to the OM183 5 The problem occurs with a heavy output load when the input voltage is high and the output voltage is low such as immediately after a removal of a short The load line for such a load may intersect the output current curve at two points If this happens there are two stable output operating points for the regulator With this double intersection the power supply may need to be cycled down to zero and brought up again to make the output recover Thermal Conditions This series of regulators has internal power and thermal limiting circuitry designed to protect the device under overload conditions For continuous normal load conditions however maximum junction temperature ratings must not be exceeded It is important to give careful considerati
6. he s pE RR deme dus 15A ga Note OM183SC and OM184SC products are packaged in the TO 258 Package 7 5A amp 5A OM185ST and OM186ST products are packaged in the TO 257 Package 3A amp 1 5A Part Number Designator OM183 5SC Omnirel Output Output Package Current Voltage Type Al Gmnirel 3 205 Crawford Street Leominster MA 01453 USA 508 534 5776 FAX 508 537 4246 OM183 5SC OM186 15ST ELECTRICAL CHARACTERISTICS T 25 C unless otherwise noted Parameter Conditions Min Typ Max Units Output Voltage OM183 4 5 6 5 V loy 0 mA T 25 C V 8 V 4 95 5 0 5 05 V 0 lt lour S lru Loan 6 5 V lt V 30 V 4 90 5 0 5 10 V OM183 4 5 6 12 V lour 0 mA T 25 C V 15 V 11 88 12 0 12 12 V OX lour lggii1ous 19 5 V Vy 30 V 11 76 12 0 12 24 V OM183 4 5 6 15 V lour 0 mA T 25 C Vn 20 V 14 85 15 0 15 15 V 0 lour lru Loap 17 5 V lt Vy lt 30V 14 70 15 0 15 30 V Line Regulation OM183 4 5 6 5 V loy 0 mA T 25 C 6 5 V lt V lt 20 V 0 5 10 mV 1 0 10 mV 6 5 V lt Vn lt 30V 2 0 25 mV OM183 4 5 6 12 V loy 0 mA T 25 C 13 5 V lt Vy lt 25 V 1 0 25 mV 2 0 25 mV 13 5 V lt Vn lt 30 V 4 0 60 mV OM183 4 5 6 15 V lour 0 mA T 25 C 17 5 V lt Vn lt 25V 2 0 50 mV 4 0 50 mV 17 5 V lt Vn lt 30 V 8 0 100 mV Load Regulation OM183 4 5 6 5 V Vin 8 V 0 lt lour lt leui toan 5 20 mV T
7. on to all sources of thermal resistance from junction to ambient This includes junction to case case to heat sink interface and heat sink resistance itself New thermal resistance specifications have been developed to more accurately reflect device temperature and ensure safe operating temperatures The data section for these new regulators provides a separate thermal resistance and maximum junction temperature for both the Control Section and the Power Transistor Previous regulators with a single junction to case thermal resistance specification used an average of the two values provided here and therefore could allow excessive junction temperature under certain conditions of ambient temperature and heat sink resistance To avoid this possibility calculations should be made for both sections to ensure that both thermal limits are met Junction to case thermal resistance is specified from the IC junction to the bottom of the case directly below the die This is the lowest resistance path for heat flow Proper mounting is required to ensure the best possible thermal flow from this area of the package to the heat sink Thermal compound at the case to heat sink interface is strongly recommended If the case of the device must be electrically isolated a thermally conductive spacer can be used as long as its added contribution to thermal resistance is considered Note that the case of all devices in this series is electrically connected to the o
8. utput MECHANICAL SPECIFICATIONS P N OM183SC and OM184SC JEDEC TO 258AA MECHANICAL OUTLINE 270 i 695 240 A55 dd 045 J 085 835 815 707 697 550 530 4 1 092 MAX 750 500 7 005 065 055 LS 140 TYP ke 200 TYP k P N OM185ST and OM186ST MECHANICAL OUTLINE 3 3 69 PIN CONNECTION Pin 1 Ground Pin 2 Vout Pin 3 Vin JEDEC TO 257AA PIN CONNECTION Pin 1 Ground Pin 2 Vout Pin 3 Vin Omnirel amp
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OmnIrel OM183 5 12 5SC OM184 5 12 5SC OM185 5 12 5SC OM186 5 12 5SC handbook