Datasheet LT8309 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | Secondary-Side Synchronous Rectifier Driver |
| Pages / Page | 14 / 4 — Typical perForMance characTerisTics. IVCC vs Temperature. IINTVCC vs … |
| File Format / Size | PDF / 232 Kb |
| Document Language | English |
Typical perForMance characTerisTics. IVCC vs Temperature. IINTVCC vs Temperature. INTVCC vs Temperature
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Text Version of Document
LT8309
Typical perForMance characTerisTics IVCC vs Temperature IINTVCC vs Temperature INTVCC vs Temperature
450 200 8.0 400 180 7.8 350 160 7.6 140 7.4 300 120 7.2 250 100 7.0 CURRENT (µA) 200 CURRENT (µA) VOLTAGE (V) I Q 80 6.8 I Q CC 150 CC V CC 60 INTV 6.6 100 INTV 40 6.4 50 20 6.2 0 0 6.0 –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) 8309 G01 8309 G02 8309 G03
INTVCC Undervoltage Lockout INTVCC Regulator Dropout INTVCC Voltage vs VCC Voltage vs Temperature vs INTVCC Current
8 5.0 2.5 VCC = 7V 7 TEMP = 150°C 2.0 6 4.5 5 TEMP = 100°C 1.5 TEMP = –50°C 4 4.0 RISING THRESHOLD VOLTAGE (V) TEMP = 25°C CC 3 1.0 INTV REGULATOR DROPOUT (V) 2 THRESHOLD VOLTAGE (V) 3.5 FALLING THRESHOLD CC 0.5 1 INTV 0 3.0 0 0 10 20 30 40 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 VCC VOLTAGE (V) TEMPERATURE (°C) INTV 8309 G04 8309 G05 CC CURRENT (mA) 8309 G06
INTVCC Current Limit Minimum On-Time and Off-Time INTVCC Dropout vs Temperature vs Temperature vs Temperature
2.0 60 400 VCC = 7V MINIMUM ON-TIME 50 350 1.5 ILOAD = 20mA ILOAD = 10mA (mA) 300 40 250 I 1.0 LOAD = 5mA 30 DROPOUT (V) ILOAD = 0mA TIME (ns) 200 CC CURRENT LIMIT 20 INTV CC 150 0.5 INTV 10 MINIMUM OFF-TIME 100 0 0 50 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –100 –50 0 50 100 150 200 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 8309 G07 8309 G08 8309 G09 8309fa 4 For more information www.linear.com/LT8309
Typical perForMance characTerisTics IVCC vs Temperature IINTVCC vs Temperature INTVCC vs Temperature
450 200 8.0 400 180 7.8 350 160 7.6 140 7.4 300 120 7.2 250 100 7.0 CURRENT (µA) 200 CURRENT (µA) VOLTAGE (V) I Q 80 6.8 I Q CC 150 CC V CC 60 INTV 6.6 100 INTV 40 6.4 50 20 6.2 0 0 6.0 –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) 8309 G01 8309 G02 8309 G03
INTVCC Undervoltage Lockout INTVCC Regulator Dropout INTVCC Voltage vs VCC Voltage vs Temperature vs INTVCC Current
8 5.0 2.5 VCC = 7V 7 TEMP = 150°C 2.0 6 4.5 5 TEMP = 100°C 1.5 TEMP = –50°C 4 4.0 RISING THRESHOLD VOLTAGE (V) TEMP = 25°C CC 3 1.0 INTV REGULATOR DROPOUT (V) 2 THRESHOLD VOLTAGE (V) 3.5 FALLING THRESHOLD CC 0.5 1 INTV 0 3.0 0 0 10 20 30 40 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 VCC VOLTAGE (V) TEMPERATURE (°C) INTV 8309 G04 8309 G05 CC CURRENT (mA) 8309 G06
INTVCC Current Limit Minimum On-Time and Off-Time INTVCC Dropout vs Temperature vs Temperature vs Temperature
2.0 60 400 VCC = 7V MINIMUM ON-TIME 50 350 1.5 ILOAD = 20mA ILOAD = 10mA (mA) 300 40 250 I 1.0 LOAD = 5mA 30 DROPOUT (V) ILOAD = 0mA TIME (ns) 200 CC CURRENT LIMIT 20 INTV CC 150 0.5 INTV 10 MINIMUM OFF-TIME 100 0 0 50 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –100 –50 0 50 100 150 200 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 8309 G07 8309 G08 8309 G09 8309fa 4 For more information www.linear.com/LT8309
