Datasheet LTC7803 (Analog Devices) - 7
| Fabricante | Analog Devices |
| Descripción | 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum |
| Páginas / Página | 36 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Soft-Start Pull-Up Current. … |
| Formato / tamaño de archivo | PDF / 1.6 Mb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS. Soft-Start Pull-Up Current. Soft–Start Pull–up Current. Shutdown Current. vs Temperature
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Versión de texto del documento
LTC7803
TYPICAL PERFORMANCE CHARACTERISTICS Soft-Start Pull-Up Current Soft–Start Pull–up Current Shutdown Current vs Temperature Shutdown Current vs Temperature Shutdown Current vs Input V vs Input Voltage oltage
15.0 10 3.0 VIN = VBIAS 14.5 9 2.5 14.0 8 13.5 7 2.0 13.0 6 12.5 5 1.5 T CURRENT (µA) AR 12.0 4 1.0 T–ST 11.5 3 SOF 11.0 SHUTDOWN CURRENT (µA) 2 SHUTDOWN CURRENT (µA) 0.5 10.5 1 10.0 0 0 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 0 5 10 15 20 25 30 35 40 TEMPRATURE (°C) TEMPRATURE (°C) INPUT VOLTAGE (V) 7803 G10 7803 G11 7803 G12
RUN Pin Threshold Undervoltage Lockout Threshold Undervoltage Lockout Threshold Quiescent Current vs Temperature Quiescent Current vs T RUN Pin Thresholds vs T vs Temperature emperature vs Temperature vs T
50 1.30 5.0 45 4.8 40 1.25 4.6 35 RUN RISING 4.4 INTV 1.20 CC RISING 30 4.2 TAGE (v) TAGE (V) 25 1.15 4.0 VOL 20 RUN FALLING 3.8 V CC INTVCC FALLING 15 1.10 RUN PIN VOL INT 3.6 QUIESCENT CURRENT (µA) 10 3.4 1.05 5 3.2 0 1.00 3.0 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 –55 25 5 35 65 95 125 155 TEMPRATURE (°C) TEMPRATURE (°C) TEMPERATURE (°C) 7803 G13 7804 G14 7803 G15
INTVCC and EXTVCC INTV INT CC V Line Regulation INTV CC Line Regulation INT CC V Line Regulation INTV CC Line Regulation CC and EXTV vs Load Current CC vs Load Current
5.3 5.3 5.3 NO LOAD NO LOAD 5.2 5.2 5.2 EXTVCC = 0V 5.1 5.1 5.1 5.0 EXTVCC = 8.5V 4.9 5.0 5.0 4.8 TAGE (V) TAGE (V) TAGE (V) 4.7 4.9 4.9 VOL VOL VOL 4.6 V CC 4.8 V CC 4.8 V CC 4.5 INT INT INT 4.4 EXTVCC = 5V 4.7 4.7 4.3 4.6 4.6 4.2 4.1 VBIAS = 12V 4.5 4.5 4.0 0 5 10 15 20 25 30 35 40 4.50 4.75 5 5.25 5.50 5.75 6 0 10 20 30 40 50 60 70 80 INPUT VOLTAGE (V) INPUT VOLTAGE (V) LOAD CURRENT (mA) 7803 G16 7803 G17 7803 G18 Rev 0 For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Soft-Start Pull-Up Current Soft–Start Pull–up Current Shutdown Current vs Temperature Shutdown Current vs Temperature Shutdown Current vs Input V vs Input Voltage oltage
15.0 10 3.0 VIN = VBIAS 14.5 9 2.5 14.0 8 13.5 7 2.0 13.0 6 12.5 5 1.5 T CURRENT (µA) AR 12.0 4 1.0 T–ST 11.5 3 SOF 11.0 SHUTDOWN CURRENT (µA) 2 SHUTDOWN CURRENT (µA) 0.5 10.5 1 10.0 0 0 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 0 5 10 15 20 25 30 35 40 TEMPRATURE (°C) TEMPRATURE (°C) INPUT VOLTAGE (V) 7803 G10 7803 G11 7803 G12
RUN Pin Threshold Undervoltage Lockout Threshold Undervoltage Lockout Threshold Quiescent Current vs Temperature Quiescent Current vs T RUN Pin Thresholds vs T vs Temperature emperature vs Temperature vs T
50 1.30 5.0 45 4.8 40 1.25 4.6 35 RUN RISING 4.4 INTV 1.20 CC RISING 30 4.2 TAGE (v) TAGE (V) 25 1.15 4.0 VOL 20 RUN FALLING 3.8 V CC INTVCC FALLING 15 1.10 RUN PIN VOL INT 3.6 QUIESCENT CURRENT (µA) 10 3.4 1.05 5 3.2 0 1.00 3.0 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 –55 25 5 35 65 95 125 155 TEMPRATURE (°C) TEMPRATURE (°C) TEMPERATURE (°C) 7803 G13 7804 G14 7803 G15
INTVCC and EXTVCC INTV INT CC V Line Regulation INTV CC Line Regulation INT CC V Line Regulation INTV CC Line Regulation CC and EXTV vs Load Current CC vs Load Current
5.3 5.3 5.3 NO LOAD NO LOAD 5.2 5.2 5.2 EXTVCC = 0V 5.1 5.1 5.1 5.0 EXTVCC = 8.5V 4.9 5.0 5.0 4.8 TAGE (V) TAGE (V) TAGE (V) 4.7 4.9 4.9 VOL VOL VOL 4.6 V CC 4.8 V CC 4.8 V CC 4.5 INT INT INT 4.4 EXTVCC = 5V 4.7 4.7 4.3 4.6 4.6 4.2 4.1 VBIAS = 12V 4.5 4.5 4.0 0 5 10 15 20 25 30 35 40 4.50 4.75 5 5.25 5.50 5.75 6 0 10 20 30 40 50 60 70 80 INPUT VOLTAGE (V) INPUT VOLTAGE (V) LOAD CURRENT (mA) 7803 G16 7803 G17 7803 G18 Rev 0 For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Package Description Typical Application Related Parts