Datasheet LT8303 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 100VIN Micropower Isolated Flyback Converter with 150V/450mA Switch |
| 页数 / 页 | 24 / 4 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 1.2 Mb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Switching Frequency. Output Load and Line Regulation
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LT8303
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Switching Frequency Output Load and Line Regulation Output Temperature Variation vs Load Current
5.3 5.3 400 FRONT PAGE APPLICATION FRONT PAGE APPLICATION FRONT PAGE APPLICATION 350 5.2 VIN = 48V 5.2 300 5.1 5.1 250 TAGE (V) TAGE (V) 5.0 5.0 200 150 4.9 4.9 FREQUENCY (kHz) OUTPUT VOL OUTPUT VOL V V IN = 12V 100 IN = 12V V V IN = 24V 4.8 IOUT = 3mA 4.8 IN = 24V V V IN = 48V IOUT = 200mA IN = 48V 50 V V IN = 72V IOUT = 700mA IN = 72V 4.7 4.7 0 0 100 200 300 400 500 600 700 800 900 –50 –25 0 25 50 75 100 125 150 0 100 200 300 400 500 600 700 800 900 LOAD CURRENT (mA) TEMPERATURE (°C) LOAD CURRENT (mA) 8303 G01 8303 G02 8303 G03
Boundary Mode Waveforms Discontinuous Mode Waveforms Burst Mode Waveforms
VSW VSW VSW 50V/DIV 50V/DIV 50V/DIV VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV 8303 G05 8303 G06 2µs/DIV 8303 G04 2µs/DIV 20µs/DIV FRONT PAGE APPLICATION FRONT PAGE APPLICATION FRONT PAGE APPLICATION VIN = 48V, IOUT = 700mA VIN = 48V, IOUT = 200mA VIN = 48V, IOUT = 3mA
VIN Quiescent Current, VIN Quiescent Current, VIN Shutdown Current Sleep Mode Active Mode
10 100 340 TJ = –50°C TJ = 25°C 90 8 TJ = 150°C 320 TJ = 150°C 80 TJ = 150°C 6 T 300 J = 25°C (µA) (µA) 70 T (µA) J = 25°C I Q I Q I Q 4 280 TJ = –50°C 60 TJ = –50°C 2 260 50 0 40 240 0 20 40 60 80 100 0 20 40 60 80 100 0 20 40 60 80 100 VIN (V) VIN (V) VIN (V) 8303 G07 8303 G08 8303 G09 8303fa 4 For more information www.linear.com/LT8303 Document Outline Features Applications Description Typical Application 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. Switching Frequency Output Load and Line Regulation Output Temperature Variation vs Load Current
5.3 5.3 400 FRONT PAGE APPLICATION FRONT PAGE APPLICATION FRONT PAGE APPLICATION 350 5.2 VIN = 48V 5.2 300 5.1 5.1 250 TAGE (V) TAGE (V) 5.0 5.0 200 150 4.9 4.9 FREQUENCY (kHz) OUTPUT VOL OUTPUT VOL V V IN = 12V 100 IN = 12V V V IN = 24V 4.8 IOUT = 3mA 4.8 IN = 24V V V IN = 48V IOUT = 200mA IN = 48V 50 V V IN = 72V IOUT = 700mA IN = 72V 4.7 4.7 0 0 100 200 300 400 500 600 700 800 900 –50 –25 0 25 50 75 100 125 150 0 100 200 300 400 500 600 700 800 900 LOAD CURRENT (mA) TEMPERATURE (°C) LOAD CURRENT (mA) 8303 G01 8303 G02 8303 G03
Boundary Mode Waveforms Discontinuous Mode Waveforms Burst Mode Waveforms
VSW VSW VSW 50V/DIV 50V/DIV 50V/DIV VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV 8303 G05 8303 G06 2µs/DIV 8303 G04 2µs/DIV 20µs/DIV FRONT PAGE APPLICATION FRONT PAGE APPLICATION FRONT PAGE APPLICATION VIN = 48V, IOUT = 700mA VIN = 48V, IOUT = 200mA VIN = 48V, IOUT = 3mA
VIN Quiescent Current, VIN Quiescent Current, VIN Shutdown Current Sleep Mode Active Mode
10 100 340 TJ = –50°C TJ = 25°C 90 8 TJ = 150°C 320 TJ = 150°C 80 TJ = 150°C 6 T 300 J = 25°C (µA) (µA) 70 T (µA) J = 25°C I Q I Q I Q 4 280 TJ = –50°C 60 TJ = –50°C 2 260 50 0 40 240 0 20 40 60 80 100 0 20 40 60 80 100 0 20 40 60 80 100 VIN (V) VIN (V) VIN (V) 8303 G07 8303 G08 8303 G09 8303fa 4 For more information www.linear.com/LT8303 Document Outline Features Applications Description Typical Application 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