Datasheet LT8714 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Bipolar Output Synchronous Controller with Seamless Four Quadrant Operation |
| 页数 / 页 | 36 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 1.9 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. CTRL Pin Current. Output Current Sense Regulation
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LT8714
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. CTRL Pin Current Output Current Sense Regulation vs CTRL Pin Voltage EN Threshold vs Temperature EN CHIP THRESHOLDS Voltage vs T (ISP – ISN and IMON emperature )
16 1.36 53 1.218 1.34 12 52 1.214 1.32 8 RISING 51 1.210 1.30 IMON (V) 4 1.28 50 1.206 1.26 0 49 1.202 CTRL PIN CURRENT (µA) FALLING 1.24 AVERAGE ISP–ISN (mV) EN THRESHOLD RISING (V) –4 48 1.198 1.22 QIII, QIV –8 1.20 47 1.194 –0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 CTRL PIN VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 8714 G10 8714 G11 8714 G12
Output Current Sense Regulation Valley Current Limit Thresholds Power Good Thresholds Voltage vs FB (ISP – (ISP-ISN and IMON) ISN and IMON) (ISP – ISN) Threshold (ISP-ISN) vs Temperature vs T (V emperature (V FB – CTRL) FB – CTRL)
60 1.30 –280 120 –40 VOUT RISING –285 110 –50 55 1.25 –290 100 –60 UNDER 50 1.20 IMON (V) –295 90 –70 VOL 45 1.15 –300 TAGE (mV) 80 –80 TAGE (mV) VOL ISP–ISN (mV) –305 70 –90 40 1.10 OVER AVERAGE ISP–ISN (mV) –310 60 –100 35 1.05 VOUT FALLING CTRL = 0.6V –315 50 –110 QIII, QIV 30 1.00 –320 40 –120 0.6 0.7 0.8 0.9 1.0 1.1 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 FB (V) TEMPERATURE (°C) TEMPERATURE (°C) 8714 G13 8714 G14 8714 G15
EN Pin Current (0V to 2V) Oscillator Frequency vs Temperature vs Temperature BG and TG Transition Time
35 900 80 –40°C BG RISING 25°C 800 70 BG FALLING 30 125°C TG RISING 700 RT = 46.4kΩ 60 TG FALLING 25 600 50 20 500 (kHz) 40 15 f OSC 400 300 30 10 200 TRANSITION TIME (ns) 20 EN/FBIN PIN CURRENT (µA) RT = 357kΩ 5 100 10 0 0 –50 –25 0 25 50 75 100 125 0 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 0 2 4 6 8 10 TEMPERATURE (°C) EN/FBIN VOLTAGE (V) 8714 G17 CAP LOAD (nF) 8714 G16 8714 G18 8714f For more information www.linear.com/LT8714 7 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
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. CTRL Pin Current Output Current Sense Regulation vs CTRL Pin Voltage EN Threshold vs Temperature EN CHIP THRESHOLDS Voltage vs T (ISP – ISN and IMON emperature )
16 1.36 53 1.218 1.34 12 52 1.214 1.32 8 RISING 51 1.210 1.30 IMON (V) 4 1.28 50 1.206 1.26 0 49 1.202 CTRL PIN CURRENT (µA) FALLING 1.24 AVERAGE ISP–ISN (mV) EN THRESHOLD RISING (V) –4 48 1.198 1.22 QIII, QIV –8 1.20 47 1.194 –0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 CTRL PIN VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 8714 G10 8714 G11 8714 G12
Output Current Sense Regulation Valley Current Limit Thresholds Power Good Thresholds Voltage vs FB (ISP – (ISP-ISN and IMON) ISN and IMON) (ISP – ISN) Threshold (ISP-ISN) vs Temperature vs T (V emperature (V FB – CTRL) FB – CTRL)
60 1.30 –280 120 –40 VOUT RISING –285 110 –50 55 1.25 –290 100 –60 UNDER 50 1.20 IMON (V) –295 90 –70 VOL 45 1.15 –300 TAGE (mV) 80 –80 TAGE (mV) VOL ISP–ISN (mV) –305 70 –90 40 1.10 OVER AVERAGE ISP–ISN (mV) –310 60 –100 35 1.05 VOUT FALLING CTRL = 0.6V –315 50 –110 QIII, QIV 30 1.00 –320 40 –120 0.6 0.7 0.8 0.9 1.0 1.1 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 FB (V) TEMPERATURE (°C) TEMPERATURE (°C) 8714 G13 8714 G14 8714 G15
EN Pin Current (0V to 2V) Oscillator Frequency vs Temperature vs Temperature BG and TG Transition Time
35 900 80 –40°C BG RISING 25°C 800 70 BG FALLING 30 125°C TG RISING 700 RT = 46.4kΩ 60 TG FALLING 25 600 50 20 500 (kHz) 40 15 f OSC 400 300 30 10 200 TRANSITION TIME (ns) 20 EN/FBIN PIN CURRENT (µA) RT = 357kΩ 5 100 10 0 0 –50 –25 0 25 50 75 100 125 0 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 0 2 4 6 8 10 TEMPERATURE (°C) EN/FBIN VOLTAGE (V) 8714 G17 CAP LOAD (nF) 8714 G16 8714 G18 8714f For more information www.linear.com/LT8714 7 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