65V3A LM2577T-12 LM2577T-15 LM2577T-ADJ DS011468-08-JP LM2577 LM1577 LM2577N-12

65V3A NPN 3.5V 40V 52kHz 3.0A

65V3A 65V3A NPN 3.5V 40V 52kHz 3.0A NPN 52kHz ( ) Straight Leads 5-Lead TO-220 (T) Bent, Staggered Leads 5-Lead TO-220 (T) Top View Order Number LM2577T-12 LM2577T-12 Flow LB03, LM2577T-15 LM2577T-15 Flow LB03, or LM2577T-ADJ LM2577T-ADJ Flow LB03 See NS Package Number T05D Top View Order Number LM2577T-12 LM2577T-12, LM2577T-15 LM2577T-15, or LM2577T-ADJ LM2577T-ADJ See NS Package Number T05A 19990620 SIMPLE SWITCHER® © National Semiconductor Corporation DS011468-08-JP DS011468-08-JP 1 LM2577 LM2577 SIMPLE SWITCHER LM2577 LM2577 Converted to nat2000 DTD re-release for the book because migration failed to create assembly. CN Remove "Series" in the prescriptive title and put it in prod.name.title. CN Insert Trademark for SIMPLE SWITCHER. CN ds011468 11800 LM2577 LM2577 ( ) / 12V 15V ADJ 24060 33220 19920610 LM1577 LM1577 SIMPLE SWITCHER SIMPLE SWITCHERTM LM2577 LM2577 SIMPLE SWITCHERTM LM2577 LM2577 2005 4 LM2577 LM2577 ( ) 16-Lead DIP (N) 24-Lead Surface Mount (M) *No internal Connection Top View Order Number LM2577N-12 LM2577N-12, LM2577N-15 LM2577N-15, or LM2577N-ADJ LM2577N-ADJ See NS Package Number N16A *No internal Connection Top View Order Number LM2577M-12 LM2577M-12, LM2577M-15 LM2577M-15, or LM2577M-ADJ LM2577M-ADJ See NS Package Number M24B Top View TO-263 (S) 5-Lead Surface-Mount Package Side View Order Number LM2577S-12 LM2577S-12, LM2577S-15 LM2577S-15, or LM2577S-ADJ LM2577S-ADJ See NS Package Number TS5B www.national.com/jpn/ 2 LM2577 LM2577 Note: TO-220(T) 3 www.national.com/jpn/ LM2577 LM2577 (Note 1) (Notes 10) 3.5V VIN 40V 0V VSWITCH 60V 45V ISWITCH 3.0A 65V - 40 TJ 125 (Note 2) 6.0A - 65 150 ( 10 ) 260 150 ESD (C 100 pF 1.5 k) R 2 kV LM2577-12 LM2577-12 TJ25 VIN5VSWITCH0 I www.national.com/jpn/ 4 VIN5VSWITCH0 I TJ25 LM2577-15 LM2577-15 TJ25 VIN5VSWITCH0 I 5 www.national.com/jpn/ LM2577 LM2577 LM2577-12 LM2577-12 ( ) LM2577 LM2577 LM2577-15 LM2577-15 ( ) VIN5VSWITCH0 I TJ25 www.national.com/jpn/ 6 IN 5VVFEEDBACK V TJ 25 VREFISWITCH 0 LM2577-ADJ LM2577-ADJ TJ 25 IN 5VVFEEDBACK V VREFISWITCH 0 7 www.national.com/jpn/ LM2577 LM2577 LM2577-15 LM2577-15 ( ) LM2577 LM2577 LM2577-ADJ LM2577-ADJ ( ) IN 5VVFEEDBACK V TJ 25 VREFISWITCH 0 Note 1: IC IC IC Note 2: LM2577 LM2577 IC IC IC 6A Note 3: ( ) Note 4: ( ) Note 5: ( ) ( ) 100 Note 6: LM2577 LM2577 (SQC) Figure 1 3 Note 7: ) 1.0MAVOL COMP ( 10M AVOL 2 www.national.com/jpn/ 8 Note 8: Note 9: 1 Switchers Made Simple TO-263 PC 0.5 50 /W1 JA 37 /W1.6 32 /W JA JA Note 10: LM2577-12 LM2577-12 24VLM2577-15 24VLM2577-15 30VLM2577-ADJ 30VLM2577-ADJ 2.5V Reference Voltage vs Temperature Reference Voltage vs Temperature Reference Voltage vs Supply Voltage Reference Voltage vs Temperature Reference Voltage vs Supply Voltage Reference Voltage vs Supply Voltage 9 www.national.com/jpn/ LM2577 LM2577 LM2577-ADJ LM2577-ADJ ( ) LM2577 LM2577 ( ) Error Amp Transconductance vs Temperature Error Amp Transconductance vs Temperature Error Amp Transconductance vs Temperature Error Amp Voltage Gain vs Temperature Error Amp Voltage Gain vs Temperature Error Amp Voltage Gain vs Temperature www.national.com/jpn/ 10 LM2577 LM2577 ( ) Quiescent Current vs Temperature Quiescent Current vs Switch Current Current Limit Response Time vs Overdrive Current Limit vs Temperature Switch Saturation Voltage Switch Current Switch Transconductance Temperature 11 www.national.com/jpn/ LM2577 LM2577 ( ) Feedback Pin Bias Current vs Temperature Oscillator Frequency vs Temperature Maximum Power Dissipation (TO-263) (Note 9) www.national.com/jpn/ 12 LM2577 LM2577 LM2577-12 LM2577-12 L 415-0930 (AIE) D any manufacturer COUT Sprague Type 673D Electrolytic 680 F, 20V Note: TO-220(T) FIGURE 1. Circuit Used to Specify System Parameters for 12V Versions LM2577-15 LM2577-15 L 415-0930 (AIE) D any manufacturer COUT Sprague Type 673D Electrolytic 680 F, 20V Note: TO-220(T) FIGURE 2. Circuit Used to Specify System Parameters for 15V Versions 13 www.national.com/jpn/ LM2577 LM2577 LM2577-ADJ LM2577-ADJ L 415-0930 (AIE) D any manufacturer COUT Sprague Type 673D Electrolytic 680 F, 20V R1 48.7k in series with 511 (1) R2 5.62k (1) Note: TO-220(T) FIGURE 3. Circuit Used to Specify System Parameters for ADJ Versions Note: TO-220(T) * 12V 15V LM2577 LM2577 FIGURE 4. LM2577 LM2577 Block Diagram and Boost Regulator Application www.national.com/jpn/ 14 LM2577 LM2577 ( ) ( ) Figure 4 LM2577-ADJ LM2577-ADJ LM2577-12 LM2577-12 LM2577-15 LM2577-15 12V 15V LM2577 LM2577 52kHz / (L) NPN VIN/L (VOUT - VIN)/L (D) (COUT) 1.230V ( ) 2 VF Forward Biased Diode Voltage ILOAD Output Load Current Figure 5 Figure 6 FIGURE6. Step-Up Regulator Formulas Figure 4 : VIN(min) VOUT ILOAD(max) LM2577 LM2577 VIN VOUT ILOAD(max) VOUT ILOAD(max) VOUT 60V VOUT 10 × VIN(min) FIGURE 5. Step-Up Regulator Waveforms 15 www.national.com/jpn/ LM2577 LM2577 ( ) 1. (L) 1. LMIN A. 2. ET H L ET L H H 1. 12V 15V Figure 7 (12V ) Figure 8 (15V ) IN(min) ILOAD(max) V LM2577 LM2577 LM2577 LM2577 3.5V C 2. ADJ 3 D(max): (0 D 0.9) VF 0.5V 0.8V( ) FIGURE 7. LM2577-12 LM2577-12 Inductor Selection Guide ET: × IIND,DC: B. 1. Figure 9 ET IIND,DC ( : ) L H ET 90V s (L) 250V (H) s FIGURE 8. LM2577-15 LM2577-15 Inductor Selection Guide 2. D 0.85 C D 0.85 B1 LMIN C B1 www.national.com/jpn/ 16 LM2577 LM2577 ( ) Note: ( ) 20 30 20 30 FIGURE 9. LM2577-ADJ LM2577-ADJ Inductor Selection Graph C. Figure 10 3 AIE : (EMI) ( ) E T Pulse : EMI ET Renco : ET EMI 17 www.national.com/jpn/ LM2577 LM2577 ( ) C. CC 90 CC 0.22 F Figure 11 (WVDC) : 20 : RMS Schott Corp., (612) 475-1173 1000 Parkers Lake Rd., Wayzata, MN 55391 Pulse Engineering, (619) 268-2400 P.O. Box 12235, San Diego, CA 92112 Renco Electronics Inc., (516) 586-5566 60 Jeffryn Blvd. East, Deer Park, NY 11729 FIGURE 10. Table of Standardized Inductors and Manufacturer's Part Numbers 52kHz 50 2. (RC C)(COUT) C (ESR) : RC CC CC RC ESR RC CC CCC R LOAD(max) I LCOUT RCCCCOUT RC CC (ILOAD VOUT ) (Figure 15 ) A. RC ESR 52kHz 15 30 120Hz ESR - 20 ESR 2 3k B. 2 COUT ESR (C 470 WVDC F) 2 www.national.com/jpn/ 18 3. (R1 R2) 5. (D) LM2577-ADJ LM2577-ADJ LM257712LM2577-15 LM257712LM2577-15 LM2577 LM2577 LOAD(max)ID(PK) I ( ) 1A 3A Figure 12 LM2577-ADJ LM2577-ADJ VOUT 1.23V (1 R1/R2) R1 R2 LM2577-ADJ LM2577-ADJ 1.23V VOUT R1R2 4. (CIN) LM2577 LM2577 ESR 0.1 F Cornell Dublier -Types 239, 250, 251, UFT, 300, or 350 P.O. Box 128, Pickens, SC 29671 (803) 878-6311 Nichicon -Types PF, PX, or PZ 927 East Parkway, Schaumburg, IL 60173 FIGURE 12. Diode Selection Chart (708) 843-7500 Sprague -Types 672D, 673D, or 674D TO-263 PCB Box 1, Sprague Road, Lansing, NC 28643 (919) 384-2551 United Chemi-Con -Types LX, SXF, or SXJ 9801 West Higgins Road, Rosemont, IL 60018 (708) 696-2000 FIGURE 11. Aluminum Electrolytic Capacitors Recommended for Switching Regulators LM2577 LM2577 ( 4 F) * PD GND LM2577 LM2577 (Figure 13 ) Figure 14 Figure 15 LM2577 LM2577 Figure 16 19 www.national.com/jpn/ LM2577 LM2577 ( ) LM2577 LM2577 ( ) Note: TO-220(T) FIGURE 13. Step-up Regulator Delivers 12V from a 5V Input FIGURE 14. Line Regulation (Typical) of Step-Up Regulator of Figure 13 A: Output Voltage Change, 100 mV/div. (AC-coupled) A: Switch pin voltage, 10 V/div B: Load current, 0.2 A/div B: Switch pin current, 2 A/div Horizontal: 5 ms/div C: Inductor current, 2 A/div D: Output ripple voltage, 100 mV/div (AC-coupled) Horizontal: 5 s/div FIGURE 15. Load Transient Response of Step-Up Regulator of Figure 13 www.national.com/jpn/ FIGURE 16. Switching Waveforms of Step-Up Regulator of Figure 13 20 LM2577 LM2577 ( ) A. RC ( )1 Figure 18 1 2 ( ) ILOAD(max) 2 3k B. OUT(2 COUT ) C Figure 17 Figure 19 2 1. ± 10V 15V ± ± (Figure 18 )Figure 20 2. (CC C)(COUT) R CC C R COUT ( ) ILOAD(max) ILOAD(max) FIGURE 17. Flyback Regulator Waveforms 21 www.national.com/jpn/ LM2577 LM2577 ( ) T1 Pulse Engineering, PE-65300 PE-65300 D1, D2 1N5821 1N5821 FIGURE 18. LM2577-ADJ LM2577-ADJ Flyback Regulator with ± Outputs www.national.com/jpn/ 22 LM2577 LM2577 ( ) FIGURE 19. Flyback Regulator Formulas R1 R2 LM2577-ADJ LM2577-ADJ 1.23V OUT R2 V R1 C. CC - D. VOUT VOUT ESR 4. ESR Figure 19 COUT 3. LM2577-ADJ LM2577-ADJ LM257712LM2577-15 LM257712LM2577-15 LM2577-ADJ LM2577-ADJ VOUT 1.23V (1 R1/R2) 23 www.national.com/jpn/ LM2577 LM2577 ( ) 5. LM2577 LM2577 VIN VIN ESR 1.0 F ( ) VCLAMP FIGURE 21. Snubber Circuit FIGURE 20. Flyback Transformer Selection Guide Figure 22 5V 15V ( ± 225mA) Figure 23 Figure 25 Figure 24 Figure 26 Figure 27 (47 ) F 6. 10V LP 200 H 65V Figure 21 RC SW(OFF) V 5V 10V (VCLAMP) R C www.national.com/jpn/ 24 LM2577 LM2577 ( ) T1 Pulse Engineering, PE-65300 PE-65300 D1, D2 1N5821 1N5821 FIGURE 22. Flyback Regulator Easily Provides Dual Outputs A: Output Voltage Change, 100 mV/div B: Output Current, 100 mA/div Horizontal: 10 ms/div FIGURE 24. Load Transient Response of Flyback Regulator of Figure 22, 15V Output FIGURE 23. Line Regulation (Typical) of Flyback Regulator of Figure 22 , 15V Output 25 www.national.com/jpn/ LM2577 LM2577 ( ) A: Output Voltage Change, 100 mV/div B: Output Current, 100 mA/div Horizontal: 10 ms/div FIGURE 26. Load Transient Response of Flyback Regulator of Figure 22, - 15V Output FIGURE 25. Line Regulation (Typical) of Flyback Regulator of Figure 22, - 15V Output A: Switch pin voltage, 20 V/div B: Primary current, 2 A/div C: 15V Secondary current, 1 A/div D: 15V Output ripple voltage, 100 mV/div Horizontal: 5 s/div FIGURE 27. Switching Waveforms of Flyback Regulator of Figure 22 , Each Output Loaded with 60 RC LM2577 LM2577 Figure 28 RIN CIN 40 sec FIGURE 28. Input Line Filter www.national.com/jpn/ 26 LM2577 LM2577 inches (millimeters) 0.300 Wide SO Package (M) Order Number LM2577M-12 LM2577M-12, LM2577M-15 LM2577M-15 or LM2577M-ADJ LM2577M-ADJ NS Package Number M24B 27 www.national.com/jpn/ LM2577 LM2577 inches (millimeters) ( ) Molded Dual-In-Line Package (N) Order Number LM2577N-12 LM2577N-12, LM2577N-15 LM2577N-15, or LM2577N-ADJ LM2577N-ADJ NS Package Number N16A TO-220, Straight Leads (T) Order Number LM2577T-12 LM2577T-12, LM2577T-15 LM2577T-15, or LM2577T-ADJ LM2577T-ADJ NS Package Number TO5A www.national.com/jpn/ 28 LM2577 LM2577 inches (millimeters) ( ) TO-220, Bent Staggered Leads (T) Order Number LM2577T-12 LM2577T-12 Flow LB03, LM2577T-15 LM2577T-15 Flow LB03, or LM2577T-ADJ LM2577T-ADJ Flow LB03 NS Package Number T05D 29 www.national.com/jpn/ LM2577 LM2577 SIMPLE SWITCHER inches (millimeters) ( ) 5-Lead TO-263 (S) Order Number LM2577S-12 LM2577S-12, LM2577S-15 LM2577S-15 or LM2577S-ADJ LM2577S-ADJ NS Package Number TS5B www.national.com 1. (a) (b) 2. CSP-9-111C2 CSP-9-111C2(Customer Products Stewardship Specification) CSP-9-111S2 CSP-9-111S2(Banned Substances and Materials of Interest Specification) CSP-9-111S2 CSP-9-111S2 135-0042 2-17-16 / www.national.com/jpn/ TEL.(03)5639-7300 0120-666-116