Datasheet LT8210 (Analog Devices) - 41
| Hersteller | Analog Devices |
| Beschreibung | 100V VIN and VOUT Synchronous 4-Switch Buck‑Boost DC/DC Controller with Pass-Thru |
| Seiten / Seite | 46 / 41 — TYPICAL APPLICATIONS. Figure 39. 24V Buck-Boost Regulator in Burst Mode … |
| Revision | A |
| Dateiformat / Größe | PDF / 6.1 Mb |
| Dokumentensprache | Englisch |
TYPICAL APPLICATIONS. Figure 39. 24V Buck-Boost Regulator in Burst Mode Operation. Efficiency vs Input Voltage. Start-Up
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LT8210
TYPICAL APPLICATIONS
A 10m 10μH D VIN VOUT 3V TO 24V 60V + B 5A (MAX) C + 47μF 4.7μF 4.7μF 47μF ×2 ×2 0.22μF 0.22μF ×2 ×2 TG1 BST1 SW1 BG1 SNSP1 SNSN1 PGND BG2 SW2 BST2 TG2 VINP 1nF SNSP2 DG SNSN2 VIN EXTVCC EN/UVLO VOUT DBST1 LT8210 1MEG BST1 GATEVCC FB1 VDD DBST2 2.2μF 43.2k BST2 MODE2 FB2 100k MODE1 PWGD VDD SYNC/ 4.7μF SPRD RT SS GND VC1 VC2 IMON VDD 51.1k 8210 F39a 16.9k 1nF 1.5nF 220pF (400kHz) MOSFETS A, B: INFINEON BSC094N06LS5 DBST1, DBST2: DIODES INC. US1GWF MOSFETS C, D: INFINEON BSC093N04LSG L1: 10μH TDK B82477R4103M100
Figure 39. 24V Buck-Boost Regulator in Burst Mode Operation Efficiency vs Input Voltage Start-Up Load Step
100 95 IL VIN = 12V V V OUT (AC) IN = 24V 5A/DIV 500mV/DIV IOUT = 0.5A TO 4A 90 V 85 OUT = 24V I V L OUT 5A/DIV 10V/DIV 80 SW1 75 EFFICIENCY (%) SW1 20V/DIV I 20V/DIV OUT = 1mA 70 I SW2 OUT = 10mA SW2 I 20V/DIV OUT = 100mA 65 I 20V/DIV OUT = 1000mA IOUT = 2500mA 100µs/DIV 8210 F39c 200µs/DIV 8210 F39d 60 5 10 15 20 25 30 35 40 45 50 55 60 INPUT VOLTAGE (V) 8210 F39b
Line Step Input Voltage Sweep No Load Input Current
250 VOUT FROM 28V TO 60V VOUT = 24V V I IN OUT = 0A 50V/DIV VIN VIN FROM 8V TO 50V 200 20V/DIV SW1 SW2 150 20V/DIV 20V/DIV I I L L 100 5A/DIV 5A/DIV CURRENT (µA) VOUT (AC) VOUT (AC) 500mV/DIV 500mV/DIV 50 8210 F39f 100µs/DIV 8210 F39e 200µs/DIV 012 24 36 48 60 INPUT VOLTAGE (V) 8210 F39g Rev. A For more information www.analog.com 41 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Revision History Typical Application Related Parts
TYPICAL APPLICATIONS
A 10m 10μH D VIN VOUT 3V TO 24V 60V + B 5A (MAX) C + 47μF 4.7μF 4.7μF 47μF ×2 ×2 0.22μF 0.22μF ×2 ×2 TG1 BST1 SW1 BG1 SNSP1 SNSN1 PGND BG2 SW2 BST2 TG2 VINP 1nF SNSP2 DG SNSN2 VIN EXTVCC EN/UVLO VOUT DBST1 LT8210 1MEG BST1 GATEVCC FB1 VDD DBST2 2.2μF 43.2k BST2 MODE2 FB2 100k MODE1 PWGD VDD SYNC/ 4.7μF SPRD RT SS GND VC1 VC2 IMON VDD 51.1k 8210 F39a 16.9k 1nF 1.5nF 220pF (400kHz) MOSFETS A, B: INFINEON BSC094N06LS5 DBST1, DBST2: DIODES INC. US1GWF MOSFETS C, D: INFINEON BSC093N04LSG L1: 10μH TDK B82477R4103M100
Figure 39. 24V Buck-Boost Regulator in Burst Mode Operation Efficiency vs Input Voltage Start-Up Load Step
100 95 IL VIN = 12V V V OUT (AC) IN = 24V 5A/DIV 500mV/DIV IOUT = 0.5A TO 4A 90 V 85 OUT = 24V I V L OUT 5A/DIV 10V/DIV 80 SW1 75 EFFICIENCY (%) SW1 20V/DIV I 20V/DIV OUT = 1mA 70 I SW2 OUT = 10mA SW2 I 20V/DIV OUT = 100mA 65 I 20V/DIV OUT = 1000mA IOUT = 2500mA 100µs/DIV 8210 F39c 200µs/DIV 8210 F39d 60 5 10 15 20 25 30 35 40 45 50 55 60 INPUT VOLTAGE (V) 8210 F39b
Line Step Input Voltage Sweep No Load Input Current
250 VOUT FROM 28V TO 60V VOUT = 24V V I IN OUT = 0A 50V/DIV VIN VIN FROM 8V TO 50V 200 20V/DIV SW1 SW2 150 20V/DIV 20V/DIV I I L L 100 5A/DIV 5A/DIV CURRENT (µA) VOUT (AC) VOUT (AC) 500mV/DIV 500mV/DIV 50 8210 F39f 100µs/DIV 8210 F39e 200µs/DIV 012 24 36 48 60 INPUT VOLTAGE (V) 8210 F39g Rev. A For more information www.analog.com 41 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Revision History Typical Application Related Parts