 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| MILITARY DATA SHEET MNLM2941K REV 0A0 LOW DROPOUT ADJUSTABLE REGULATOR General Description The LM2941 positive voltage regulator features the ability to source 1A of output current with a typical dropout voltage of 0.5V and a maximum of 1V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground pin current when the differential between the input voltage and the output voltage exceeds approximately 3V. The quiescent current with 1A of output current and an input-output differential of 5V is therefore only 30mA. Higher quiescent currents only exist when the regulator is in the dropout mode (Vin - Vout < 3V). Designed also for vehicular applications, the LM2941 and all regulated circuitry are protected from reverse battery installations or two-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. Familiar regulator features such as short circuit and thermal overload protection are also provided. Original Creation Date: 04/24/95 Last Update Date: 04/24/95 Last Major Revision Date: 04/24/95 Industry Part Number LM2941 NS Part Numbers LM2941K/883 Prime Die LM2941 Processing MIL-STD-883, Method 5004 Subgrp Description 1 2 3 4 5 6 7 8A 8B 9 10 11 Static tests at Static tests at Static tests at Dynamic tests at Dynamic tests at Dynamic tests at Functional tests at Functional tests at Functional tests at Switching tests at Switching tests at Switching tests at Temp ( oC) +25 +125 -55 +25 +125 -55 +25 +125 -55 +25 +125 -55 Quality Conformance Inspection MIL-STD-883, Method 5005 1 MNLM2941K REV 0A0 MILITARY DATA SHEET Features Output voltage adjustable from 5V to 20V Dropout voltage typically 0.5V @ Io = 1A Output current in excess of 1A Trimmed reference voltage Reverse battery protection Internal short circuit current limit Mirror image insertion protection TTL, CMOS compatible ON/OFF switch 2 MNLM2941K REV 0A0 MILITARY DATA SHEET (Absolute Maximum Ratings) Input Voltage (Survival Voltage < 100mS) 60V Internal Power Dissipation (Note 2) Internally Limited Maximum Junction Temperature 150 C Storage Temperature Range -65 C < Tj < +150 C Lead Temperature (Soldering, 10 seconds) 300 C ESD Susceptibility (Note 3) 500V Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions for which the device is intended to be functional, but device parameter specifications may not be guaranteed under these conditions. For guaranteed specificatinos and test conditions, see the Electrical Characteristics. The maximum power dissipation is a function of Tj(max), ThetaJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD=(Tj(max)-TA)/ThetaJA. If this dissipation is exceeded, the die temperature will rise above 150 C and the LM2941 will go into thermal shutdown. ThetaJA is 35 C/W and ThetaJC is 4 C/W. Human body model, 100pF discharged through 1.5K Ohms Note 2: Note 3: Recommended Operating Conditions Maximum Input Voltage 26V Temperature Range -55 C < TA < 125 C 3 MNLM2941K REV 0A0 MILITARY DATA SHEET Electrical Characteristics DC PARAMETERS: (The following conditions apply to all the following parameters, unless otherwise specified.) DC: 5V < Vo < = 20V, Vin = Vo +5V, Cout = 22uF SYMBOL Vref PARAMETER Reference Voltage 5mA < Io < 1A 5mA < Io < 1A Vrline Vrload Iq Line Regulation Load Regulation Quiescent Current Vo + 2V < Vin < 26V, Io = 5mA 50mA < Io < 1A Vo + 2V < Vin < 26V, Io = 5mA Vo + 2V < Vin < 26V, Io = 5mA Vin = Vo + 5V, Io = 1A 3 3 CONDITIONS NOTES PINNAME MIN 1.237 1.211 MAX 1.313 1.339 10 10 15 20 45 60 Vdo Dropout Voltage Io = 1A 0.8 1.00 Io = 100mA Isc Short Circuit Current Maximum Operational Input Voltage Reverse Polarity DC Input Voltage V(TO) V(TO) ON/OFF Threshold Voltage ON ON/OFF Threshold Voltage OFF ON/OFF Threshold Current Ro = 100 Ohms, Vo > -0.6V Io < 1A Io < 1A V ON/OFF = 2.0V, Io < 1A V ON/OFF = 2.0V, Io < 1A Vin max = 26V 1.6 1.3 2 200 3.3 3.5 26 UNIT V V SUBGROUPS 1 2, 3 mV/V 1, 2, 3 mV/V 1, 2, 3 mA mA mA mA V V mV A A VDC 1 2, 3 1 2, 3 1 2, 3 1, 2, 3 1 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1 2, 3 1 1 1 -15 0.8 2.00 100 300 V V V uA uA 4 MNLM2941K REV 0A0 MILITARY DATA SHEET Electrical Characteristics AC PARAMETERS: (The following conditions apply to all the following parameters, unless otherwise specified.) AC: 5V < Vo < = 20V, Vin = Vo +5V, Cout = 22uF SYMBOL PARAMETER Maximum Line Transient Reverse Polarity Transient Input Voltage RR Ripple Rejection CONDITIONS Vo max 1V above nominal Vo, Ro = 100 Ohms, T < 100mS T < 100mS, Ro = 100 Ohms NOTES 4 4 PINNAME MIN 60 -50 MAX UNIT V V SUBGROUPS 7, 8A, 8B 7, 8A, 8B 4 5, 6 fo = 1KHz, 1 Vrms, IL = 100mA 4 4 0.02 0.04 %/V %/V Note Note Note Note 1: 2: 3: 4: Functional test go no go only Condition for Vin Limit = mV per Volt of Vout %/V = % of Vin per Volt of Vout 5 MNLM2941K REV 0A0 MILITARY DATA SHEET Graphics and Diagrams GRAPHICS# K04ARF DESCRIPTION METAL CAN(KA), TO-3, 4 LEAD (P/P DWG) See attached graphics following this page. 6 |
Price & Availability of NSC05512
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |