Datasheet LT3574 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | Isolated Flyback Converter Without an Opto-Coupler |
| Pages / Page | 24 / 4 — TA = 25°C, unless otherwise noted. Switch Saturation Voltage. Switch … |
| File Format / Size | PDF / 296 Kb |
| Document Language | English |
TA = 25°C, unless otherwise noted. Switch Saturation Voltage. Switch Current Limit. Switch Current Limit vs RILIM
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Text Version of Document
LT3574 typical perForMance characteristics
TA = 25°C, unless otherwise noted. Switch Saturation Voltage Switch Current Limit Switch Current Limit vs RILIM
300 1200 1.2 RILIM = 10k 250 1000 1.0 MAXIMUM CURRENT LIMIT 200 800 0.8 TAGE (mV) VOL 25°C T 150 600 0.6 CESA 125°C –50°C 100 400 0.4 CURRENT LIMIT (mA) SWITCH V SWITCH CURRENT LIMIT (A) 50 200 MINIMUM CURRENT LIMIT 0.2 0 0 0 0 100 200 300 400 500 600 700 800 900 –50 –25 0 25 50 75 100 125 1 10 20 30 40 50 SWITCH CURRENT (mA) TEMPERATURE (°C) RILIM RESISTANCE (kΩ) 3574 G04 3574 G05 3574 G06
SHDN/UVLO Falling Threshold SS Pin Current
1.28 12 10 1.26 8 TAGE (V) 1.24 6 /UVLO VOL 1.22 4 SS PIN CURRENT (µA) SHDN 1.20 2 1.18 0 –60 –40 –20 0 20 40 60 80 100 120 140 –60 –40 –20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) TEMPERATURE (°C) 3574 G07 3574 G08 3574f 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
TA = 25°C, unless otherwise noted. Switch Saturation Voltage Switch Current Limit Switch Current Limit vs RILIM
300 1200 1.2 RILIM = 10k 250 1000 1.0 MAXIMUM CURRENT LIMIT 200 800 0.8 TAGE (mV) VOL 25°C T 150 600 0.6 CESA 125°C –50°C 100 400 0.4 CURRENT LIMIT (mA) SWITCH V SWITCH CURRENT LIMIT (A) 50 200 MINIMUM CURRENT LIMIT 0.2 0 0 0 0 100 200 300 400 500 600 700 800 900 –50 –25 0 25 50 75 100 125 1 10 20 30 40 50 SWITCH CURRENT (mA) TEMPERATURE (°C) RILIM RESISTANCE (kΩ) 3574 G04 3574 G05 3574 G06
SHDN/UVLO Falling Threshold SS Pin Current
1.28 12 10 1.26 8 TAGE (V) 1.24 6 /UVLO VOL 1.22 4 SS PIN CURRENT (µA) SHDN 1.20 2 1.18 0 –60 –40 –20 0 20 40 60 80 100 120 140 –60 –40 –20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) TEMPERATURE (°C) 3574 G07 3574 G08 3574f 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
