Datasheet LT8714 (Analog Devices) - 6

LT8714
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Max Current Limit Max Current Limit Max Current Limit vs Soft-Start vs Duty Cycle (CSP Cycle (CSP - CSN) – CSN) vs T T emperature (CSP – CSN emperature (CSP – CSN) ) (CSP – CSN) (CSP – CSN)
70 –20 72 –26 64 8 65 –25 CURRENT LIMIT FOR QI, QII (mV) 56 0 70 –28 CURRENT LIMIT FOR (QI, QII) CURRENT LIMIT (QI, QII) (mV) 60 –30 48 –8 68 –30 55 –35 40 –16 (mV) 50 –40 66 –32 32 –24 (mV) 45 –45 24 –32 64 –34 40 –50 16 –40 CURRENT LIMIT FOR (QIII, QIV) CURRENT LIMIT (QIII, QIV) (mV) 62 –36 CURRENT LIMIT (QIII, QIV) (mV) 35 –55 8 fOSC = 300kHz –48 fOSC = 300kHz DUTY = 50% 30 –60 60 –38 0 –56 0 10 20 30 40 50 60 70 80 90 100 –50 –25 0 25 50 75 100 125 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 DUTY CYCLE (%) TEMPERATURE (°C) SS (V) 8714 G01 8714 G02 8714 G03
FB Regulation Voltage FB Regulation Current FB Offset Voltage vs Temperature vs Temperature vs Temperature vs Temperature (VFB – CTRL)
1.2 80 10 1.1 CTRL = 1.1V 60 CTRL = 1.1V 8 1.0 0.9 40 6 0.8 20 4 0.7 CTRL = 0.6V CTRL = 0.6V TAGE (mV) TAGE (V) 0.6 0 2 0.5 FB VOL –20 0 0.4 FB CURRENT (µA) 0.3 –40 FB OFFSET VOL –2 0.2 CTRL = 1.1V CTRL = 0.1V –60 –4 0.1 CTRL = 0.1V CTRL = 0.6V CTRL = 0.1V 0 –80 –6 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 8714 G04 8714 G05 8714 G06
FB Internal Voltage FB Internal Resistance vs T T emperature emperature vs Temperature FB Voltage vs CTRL V CTRL Voltage oltage
609 7.28 1.40 7.27 1.20 608 7.26 1.00 607 ANCE (kΩ) 7.25 TAGE (mV) 0.80 606 7.24 TAGE (V) 0.60 7.23 0.40 605 FB VOL 7.22 0.20 FB INTERNAL VOL 604 FB INTERNAL RESIST 7.21 0.00 603 7.20 –0.20 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 TEMPERATURE (°C) TEMPERATURE (°C) CTRL VOLTAGE (V) 8714 G07 8714 G08 8714 G09 8714f 6 For more information www.linear.com/LT8714 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Appendix Typical Applications Package Description Typical Application Related Parts