Datasheet LTM4641 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | 38V, 10A DC/DC µModule Regulator with Advanced Input and Load Protection |
| Seiten / Seite | 66 / 8 — Typical perForMance characTerisTics |
| Dateiformat / Größe | PDF / 1.5 Mb |
| Dokumentensprache | Englisch |
Typical perForMance characTerisTics
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LTM4641
Typical perForMance characTerisTics (Figure 45 circuit with RfSET per Table 1 and RSET1A, RSET1B and RSET2 per Table 2, unless otherwise noted) Efficiency vs Load Current at 36VIN Efficiency vs Load Current at 24VIN Efficiency vs Load Current at 12VIN
95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 70 6.0VOUT 1.5VOUT 70 6.0VOUT 1.5VOUT 70 6.0VOUT 1.5VOUT 5.0VOUT 1.2VOUT 5.0VOUT 1.2VOUT 5.0VOUT 1.2VOUT 65 3.3VOUT 1.0VOUT 65 3.3VOUT 1.0VOUT 65 3.3VOUT 1.0VOUT 2.5VOUT 0.9VOUT 2.5VOUT 0.9VOUT 2.5VOUT 0.9VOUT 1.8VOUT 1.8VOUT 1.8VOUT 60 60 60 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT (A) OUTPUT CURRENT (A) OUTPUT CURRENT (A) 4641 G01 4641 G02 4641 G03
Pulse-Skipping vs Forced Continuous Mode Efficiency, Efficiency vs Load Current at 6VIN 28VIN to 3.3VOUT 1V Transient Response, 38VIN
95 90 90 80 VOUT 50mV/DIV 70 AC-COUPLED 85 FCB = INTVCC 60 (PULSE-SKIPPING) 80 50 IOUT 2.5A/DIV 75 40 FCB = SGND EFFICIENCY (%) EFFICIENCY (%) 30 FORCED 4641 G06 70 CONTINUOUS 20µs/DIV 3.3VOUT 1.2VOUT 20 0A TO 5A LOAD STEPS AT 5A/µs 2.5V 1.0V FRONT PAGE CIRCUIT WITH 65 OUT OUT 1.8VOUT 0.9VOUT 10 OVPGM = OPEN CIRCUIT 1.5VOUT 60 0 0 1 2 3 4 5 6 7 8 9 10 0.001 0.01 0.1 1 10 OUTPUT CURRENT (A) OUTPUT CURRENT (A) 4641 G04 4641 G05
3.3V Transient Response, 1V Transient Response, 4.5VIN 28VIN to 3.3VOUT Output Start-Up, No Load
V V OUT OUT VOUT 1V/DIV 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED IIN I 200mA/DIV OUT IOUT 2.5A/DIV 2.5A/DIV RUN 5V/DIV 20µs/DIV 4641 G07 20µs/DIV 4641 G08 800µs/DIV 4641 G09 0A TO 5A LOAD STEPS AT 5A/µs 0A TO 5A LOAD STEPS AT 5A/µs VIN = 24V FRONT PAGE CIRCUIT WITH FIGURE 46 CIRCUIT CIN(MLCC) = 2 × 10µF X7R OVPGM = OPEN CIRCUIT 4641fe 8 For more information www.linear.com/LTM4641 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information—Power Supply Features Applications Information—Input Protection Features Applications Information—Load Protection Features Applications Information—EMI Performance Applications Information—Multimodule Parallel Operation Applications Information—Thermal Considerations and Output Current Derating Applications Information—Output Capacitance Table Applications Information—Safety and Layout Guidance Typical Applications Appendices Package Description Package Photo Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics (Figure 45 circuit with RfSET per Table 1 and RSET1A, RSET1B and RSET2 per Table 2, unless otherwise noted) Efficiency vs Load Current at 36VIN Efficiency vs Load Current at 24VIN Efficiency vs Load Current at 12VIN
95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 70 6.0VOUT 1.5VOUT 70 6.0VOUT 1.5VOUT 70 6.0VOUT 1.5VOUT 5.0VOUT 1.2VOUT 5.0VOUT 1.2VOUT 5.0VOUT 1.2VOUT 65 3.3VOUT 1.0VOUT 65 3.3VOUT 1.0VOUT 65 3.3VOUT 1.0VOUT 2.5VOUT 0.9VOUT 2.5VOUT 0.9VOUT 2.5VOUT 0.9VOUT 1.8VOUT 1.8VOUT 1.8VOUT 60 60 60 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT (A) OUTPUT CURRENT (A) OUTPUT CURRENT (A) 4641 G01 4641 G02 4641 G03
Pulse-Skipping vs Forced Continuous Mode Efficiency, Efficiency vs Load Current at 6VIN 28VIN to 3.3VOUT 1V Transient Response, 38VIN
95 90 90 80 VOUT 50mV/DIV 70 AC-COUPLED 85 FCB = INTVCC 60 (PULSE-SKIPPING) 80 50 IOUT 2.5A/DIV 75 40 FCB = SGND EFFICIENCY (%) EFFICIENCY (%) 30 FORCED 4641 G06 70 CONTINUOUS 20µs/DIV 3.3VOUT 1.2VOUT 20 0A TO 5A LOAD STEPS AT 5A/µs 2.5V 1.0V FRONT PAGE CIRCUIT WITH 65 OUT OUT 1.8VOUT 0.9VOUT 10 OVPGM = OPEN CIRCUIT 1.5VOUT 60 0 0 1 2 3 4 5 6 7 8 9 10 0.001 0.01 0.1 1 10 OUTPUT CURRENT (A) OUTPUT CURRENT (A) 4641 G04 4641 G05
3.3V Transient Response, 1V Transient Response, 4.5VIN 28VIN to 3.3VOUT Output Start-Up, No Load
V V OUT OUT VOUT 1V/DIV 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED IIN I 200mA/DIV OUT IOUT 2.5A/DIV 2.5A/DIV RUN 5V/DIV 20µs/DIV 4641 G07 20µs/DIV 4641 G08 800µs/DIV 4641 G09 0A TO 5A LOAD STEPS AT 5A/µs 0A TO 5A LOAD STEPS AT 5A/µs VIN = 24V FRONT PAGE CIRCUIT WITH FIGURE 46 CIRCUIT CIN(MLCC) = 2 × 10µF X7R OVPGM = OPEN CIRCUIT 4641fe 8 For more information www.linear.com/LTM4641 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information—Power Supply Features Applications Information—Input Protection Features Applications Information—Load Protection Features Applications Information—EMI Performance Applications Information—Multimodule Parallel Operation Applications Information—Thermal Considerations and Output Current Derating Applications Information—Output Capacitance Table Applications Information—Safety and Layout Guidance Typical Applications Appendices Package Description Package Photo Package Description Revision History Typical Application Related Parts