Datasheet LT1512 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | SEPIC Constant-Current/Constant-Voltage Battery Charger |
| Pages / Page | 14 / 4 — Typical perForMance characTerisTics. Switch Saturation Voltage. Switch … |
| File Format / Size | PDF / 211 Kb |
| Document Language | English |
Typical perForMance characTerisTics. Switch Saturation Voltage. Switch Current Limit. Minimum Input Voltage. vs Switch Current
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LT1512
Typical perForMance characTerisTics Switch Saturation Voltage Switch Current Limit Minimum Input Voltage vs Switch Current vs Duty Cycle vs Temperature
1.0 3.0 3.0 150°C 0.9 100°C 25°C 2.5 2.8 0.8 TAGE (V) 0.7 25°C AND 2.0 125°C 2.6 0.6 –55°C TION VOL 0.5 1.5 2.4 –55°C TURA 0.4 2.2 0.3 1.0 INPUT VOLTAGE (V) 0.2 SWITCH CURRENT LIMIT (A) SWITCH SA 0.5 2.0 0.1 0 0 1.8 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 10 20 30 40 50 60 70 80 90 100 –50 –25 0 25 50 75 100 125 150 SWITCH CURRENT (A) DUTY CYCLE (%) TEMPERATURE (°C) 1512 G01 1512 G02 1512 G03
Minimum Peak-to-Peak Feedback Input Current Negative Feedback Input Current Synchronization Voltage vs Temp vs Temperature vs Temperature
) 3.0 800 0 P-P fSYNC = 700kHz V 700 FB = VREF 2.5 –10 600 2.0 500 –20 1.5 400 300 –30 1.0 200 –40 0.5 FEEDBACK INPUT CURRENT (nA) 100 NEGATIVE FEEDBACK INPUT CURRENT (µA) MINIMUM SYNCHRONIZATION VOLTAGE (V 0 0 –50 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1512 G04 1512 G05 1512 G06 1512fc 4 For more information www.linear.com/LT1512 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Related Parts
Typical perForMance characTerisTics Switch Saturation Voltage Switch Current Limit Minimum Input Voltage vs Switch Current vs Duty Cycle vs Temperature
1.0 3.0 3.0 150°C 0.9 100°C 25°C 2.5 2.8 0.8 TAGE (V) 0.7 25°C AND 2.0 125°C 2.6 0.6 –55°C TION VOL 0.5 1.5 2.4 –55°C TURA 0.4 2.2 0.3 1.0 INPUT VOLTAGE (V) 0.2 SWITCH CURRENT LIMIT (A) SWITCH SA 0.5 2.0 0.1 0 0 1.8 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 10 20 30 40 50 60 70 80 90 100 –50 –25 0 25 50 75 100 125 150 SWITCH CURRENT (A) DUTY CYCLE (%) TEMPERATURE (°C) 1512 G01 1512 G02 1512 G03
Minimum Peak-to-Peak Feedback Input Current Negative Feedback Input Current Synchronization Voltage vs Temp vs Temperature vs Temperature
) 3.0 800 0 P-P fSYNC = 700kHz V 700 FB = VREF 2.5 –10 600 2.0 500 –20 1.5 400 300 –30 1.0 200 –40 0.5 FEEDBACK INPUT CURRENT (nA) 100 NEGATIVE FEEDBACK INPUT CURRENT (µA) MINIMUM SYNCHRONIZATION VOLTAGE (V 0 0 –50 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1512 G04 1512 G05 1512 G06 1512fc 4 For more information www.linear.com/LT1512 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Related Parts
