LM2588T-3.3/NOPB National Semiconductor, LM2588T-3.3/NOPB Datasheet
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LM2588T-3.3/NOPB
Specifications of LM2588T-3.3/NOPB
*LM2588T-3.3/NOPB
LM2588T-3.3
Related parts for LM2588T-3.3/NOPB
LM2588T-3.3/NOPB Summary of contents
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... System output voltage tolerance of and load conditions Typical Applications n Flyback regulator n Forward converter n Multiple-output regulator n Simple boost regulator 01242017 Order Number LM2588T-3.3, LM2588T-5.0, LM2588T-12 or LM2588T-ADJ See NS Package Number TA07B DS012420 July 2005 ± 4% max over line Bent, Staggered Leads 7-Lead TO-220 (T) ...
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... Order Number LM2588S-3.3, LM2588S-5.0, LM2588S-12 or LM2588S-ADJ Tape and Reel Order Number LM2588SX-3.3, LM2588SX-5.0, LM2588SX-12 or LM2588SX-ADJ See NS Package Number TS7B NSC Package Drawing TA07B LM2588T-3.3, LM2588T-5.0, LM2588T-12, LM2588T-ADJ TS7B LM2588S-3.3, LM2588S-5.0, LM2588S-12, LM2588S-ADJ TS7B LM2588SX-3.3, LM2588SX-5.0, LM2588SX-12, LM2588SX-ADJ 2 7-Lead TO-263 (S) Side View ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Input Voltage Switch Voltage Switch Current (Note 2) Compensation Pin Voltage Feedback Pin Voltage ON /OFF Pin Voltage Sync Pin Voltage Power Dissipation (Note 3) Storage Temperature Range LM2588-3 ...
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LM2588-5.0 Electrical Characteristics Specifications with standard type face are for T Range. Unless otherwise specified, V Symbol Parameters V Output Reference Measured at Feedback Pin REF Voltage V ∆V Reference Voltage V REF Line Regulation G Error Amp I M ...
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LM2588-ADJ Electrical Characteristics Specifications with standard type face are for T Range. Unless otherwise specified, V Symbol Parameters UNIQUE DEVICE PARAMETERS (Note 5) V Output Reference Measured at Feedback Pin REF Voltage V COMP ∆V Reference Voltage V REF IN ...
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All Output Voltage Versions Electrical Characteristics Specifications with standard type face are for T Range. Unless otherwise specified, V Symbol Parameters I NPN Switch Current CL Limit V Synchronization F STH Threshold Voltage V I Synchronization V SYNC Pin Current ...
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Typical Performance Characteristics Supply Current vs Temperature ∆Reference Voltage vs Supply Voltage Current Limit vs Temperature 01242002 01242004 01242006 7 Reference Voltage vs Temperature 01242003 Supply Current vs Switch Current 01242005 Feedback Pin Bias Current vs Temperature 01242007 www.national.com ...
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Typical Performance Characteristics Switch Saturation Voltage vs Temperature Oscillator Frequency vs Temperature Error Amp Voltage Gain vs Temperature www.national.com (Continued) Switch Transconductance 01242008 Error Amp Transconductance 01242010 Short Circuit Frequency 01242012 8 vs Temperature 01242009 vs Temperature 01242011 vs Temperature ...
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Typical Performance Characteristics Shutdown Supply Current vs Temperature Oscillator Frequency vs Resistance Flyback Regulator (Continued) 01242014 01242016 9 ON /OFF Pin Current vs Voltage 01242015 01242001 www.national.com ...
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Test Circuits C — 100 µF, 25V Aluminum ElectrolyticC IN1 IN2 ElectrolyticC — 0.47 µF CeramicR — — 100 µF, 25V Aluminum ElectrolyticC IN1 IN2 ElectrolyticC — 0.47 µF CeramicR — 2kFor 12V Devices ...
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Block Diagram For Fixed Versions 3.3V 3.4k 2k5.0V 6.15k 2k12V 8.73k 1kFor Adj. VersionR1 = Short (0Ω), R2 = Open Flyback Regulator Operation The LM2588 is ideally suited ...
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Flyback Regulator Operation As shown in Figure 4, the LM2588 can be used as a flyback regulator by using a minimum number of external components. The switching waveforms of this regulator are shown in Figure 5. Typical Performance Characteristics observed ...
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Typical Performance Characteristics FIGURE 6. V Typical Flyback Regulator Applications Figure 7 through 12 show six typical flyback applications, varying from single output to triple output. Each drawing contains the part number(s) and manufacturer(s) for every (Continued) Response to Load ...
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Typical Flyback Regulator Applications www.national.com (Continued) FIGURE 8. Single-Output Flyback Regulator FIGURE 9. Single-Output Flyback Regulator 14 01242026 01242027 ...
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Typical Flyback Regulator Applications (Continued) FIGURE 10. Dual-Output Flyback Regulator FIGURE 11. Dual-Output Flyback Regulator 15 01242028 01242029 www.national.com ...
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Typical Flyback Regulator Applications TRANSFORMER SELECTION (T) Figure 13 lists the standard transformers available for fly- back regulator applications. Included in the table are the turns ratio(s) for each transformer, as well as the output voltages, input voltage ranges, and ...
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Typical Flyback Regulator Applications Transformer Type Coilcraft (Note 16) T1 Q4434-B T2 Q4337-B T3 Q4343-B T4 Q4344-B Note 16: Coilcraft Inc.,: Phone: (800) 322-2645 1102 Silver Lake Road, Cary, IL 60013: Fax: (708) 639-1469 European Headquarters, 21 Napier Place: Phone: ...
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Typical Flyback Regulator Applications (Continued) T1 Top View FIGURE 19. Coilcraft Q4435-B (Surface Mount) T2 Top View FIGURE 20. Coilcraft Q4436-B (Surface Mount) T1 Top View FIGURE 21. Pulse PE-68411 (Surface Mount) www.national.com 01242035 FIGURE 22. Pulse PE-68412 (Surface Mount) ...
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Typical Flyback Regulator Applications (Continued) T1 Top View FIGURE 25. Renco RL-5530 T2 Top View FIGURE 26. Renco RL-5531 T3 Top View FIGURE 27. Renco RL-5534 T4 Top View FIGURE 28. Renco RL-5535 FIGURE 29. Schott 67141450 01242041 FIGURE 30. ...
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Typical Flyback Regulator Applications Step-Up (Boost) Regulator Operation Figure 33 shows the LM2588 used as a step-up (boost) regulator. This is a switching regulator that produces an output voltage greater than the input supply voltage. A brief explanation of how ...
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Typical Performance Characteristics A: Switch Voltage,10V/div B: Switch Current, 5A/div C: Inductor Current, 5A/div D: Output Ripple Voltage, 100 mV/div, AC-Coupled FIGURE 35. V Typical Boost Regulator Applications Figure 36 and 38 through 40 show four typical boost applications — ...
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Typical Boost Regulator Applications Figure 37 contains a table of standard inductors, by part number and corresponding manufacturer, for the fixed out- put regulator of Figure 36. Coilcraft (Note 20) R4793-A Note 20: Coilcraft Inc.,: Phone: (800) 322-2645 1102 Silver ...
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Typical Boost Regulator Applications (Continued) FIGURE 38. +12V to +24V Boost Regulator FIGURE 39. +24V to +36V Boost Regulator 23 01242051 01242052 www.national.com ...
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Typical Boost Regulator Applications *The LM2588 will require a heat sink in these applications. The size of the heat sink will depend on the maximum ambient temperature. To calculate the thermal resistance of the IC and the size of the ...
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Application Hints (Continued) FREQUENCY SYNCHRONIZATION Another feature of the LM2588 is the ability to synchronize the switching frequency to an external source, using the sync pin (pin 6). This feature allows the user to parallel multiple devices to deliver more ...
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Application Hints (Continued) FLYBACK REGULATOR INPUT CAPACITORS A flyback regulator draws discontinuous pulses of current from the input supply. Therefore, there are two input capaci- tors needed in a flyback regulator — one for energy storage and one for filtering ...
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Application Hints (Continued) FIGURE 47. Input Line Filter OUTPUT VOLTAGE LIMITATIONS The maximum output voltage of a boost regulator is the maximum switch voltage minus a diode drop flyback regulator, the maximum output voltage is determined by the ...
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... To further simplify the flyback regulator design procedure, National Semiconductor is making available computer de- sign software Switchers Made Simple. Software is available ⁄ National Semiconductor sales office in your area or the National (1-800-272-9959). is the output voltage, LOAD I is the sum of the LOAD ...
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... Physical Dimensions inches (millimeters) unless otherwise noted LM2588SX-5.0, LM2588SX-12 or LM2588SX-ADJ Order Number LM2588T-3.3, LM2588T-5.0, LM2588T-12 or LM2588T-ADJ NS Package Number TA07B Order Number LM2588S-3.3, LM2588S-5.0, LM2588S-12 or LM2588S-ADJ Tape and Reel Order Number LM2588SX-3.3, NS Package Number TS7B 29 www.national.com ...
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