Datasheet LTC3897 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | PolyPhase Synchronous Boost Controller with Input/Output Protection |
| 页数 / 页 | 50 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. … |
| 修订版 | A |
| 文件格式/大小 | PDF / 3.9 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Inductor Currents at Light Load. Start-Up
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LTC3897
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Inductor Currents at Light Load Start-Up
VOUT FORCED CONTINUOUS MODE SG Burst Mode VOUT OPERATION 10V/DIV VIN 5A/DIV PULSE- SKIPPING CS MODE 0V VIN = 12V 5µs/DIV 3897 G07 VIN = 12V 10ms/DIV 3897 G08 VOUT = 24V VOUT = 48V ILOAD = 200µA FIGURE 16 CIRCUIT FIGURE 17 CIRCUIT
Regulated Feedback Voltage Soft-Start Pull-Up Current vs Temperature vs Temperature
1.212 11.0 1.209 1.206 10.5 TAGE (V) 1.203 1.200 10.0 T CURRENT (µA) AR 1.197 T-ST TED FEFEDBACK VOL 1.194 9.5 SOF REGULA 1.191 1.188 9.0 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3897 G09 3897 G10
Shutdown Current Shutdown Current vs Temperature vs Input Voltage
20 18 VIN = VBIAS 18 17 16 16 14 12 15 10 14 T CURRENT (µA) 8 AR 13 6 T-ST SHUTDOWN CURRENT (µA) 12 4 SOF 2 11 0 10 –75 –50 –25 0 25 50 75 100 125 150 0 12.5 25 37.5 50 62.5 75 TEMPERATURE (°C) INPUT VOLTAGE (V) 3897 G11 3897 G12 Rev. A 8 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Inductor Currents at Light Load Start-Up
VOUT FORCED CONTINUOUS MODE SG Burst Mode VOUT OPERATION 10V/DIV VIN 5A/DIV PULSE- SKIPPING CS MODE 0V VIN = 12V 5µs/DIV 3897 G07 VIN = 12V 10ms/DIV 3897 G08 VOUT = 24V VOUT = 48V ILOAD = 200µA FIGURE 16 CIRCUIT FIGURE 17 CIRCUIT
Regulated Feedback Voltage Soft-Start Pull-Up Current vs Temperature vs Temperature
1.212 11.0 1.209 1.206 10.5 TAGE (V) 1.203 1.200 10.0 T CURRENT (µA) AR 1.197 T-ST TED FEFEDBACK VOL 1.194 9.5 SOF REGULA 1.191 1.188 9.0 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3897 G09 3897 G10
Shutdown Current Shutdown Current vs Temperature vs Input Voltage
20 18 VIN = VBIAS 18 17 16 16 14 12 15 10 14 T CURRENT (µA) 8 AR 13 6 T-ST SHUTDOWN CURRENT (µA) 12 4 SOF 2 11 0 10 –75 –50 –25 0 25 50 75 100 125 150 0 12.5 25 37.5 50 62.5 75 TEMPERATURE (°C) INPUT VOLTAGE (V) 3897 G11 3897 G12 Rev. A 8 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts