Datasheet LTC3896 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 150V Low IQ, Synchronous Inverting DC/DC Controller |
| 页数 / 页 | 36 / 7 — Typical perForMance characTerisTics |
| 文件格式/大小 | PDF / 2.0 Mb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics
该数据表的模型线
文件文字版本
LTC3896
Typical perForMance characTerisTics V – – IN and VOUT with respect to GND. All other voltages with respect to VOUT , unless otherwise noted. EXTVCC Switchover and DRVCC EXTVCC Switchover and DRVCC DRVCC vs Load Current Voltages vs Temperature Voltages vs Temperature
6.5 6.5 10.5 NDRV LDO (NDRV FET), EXTVCC = 8.5V EXTVCC = 8.5V EXTVCC = 0V 10.0 6.0 6.0 9.5 NDRV LDO (NDRV FET) NDRV LDO (NDRV NFET) 5.5 5.5 EXTV EXTVCC = 0V CC = 0V TAGE (V) V 9.0 IN LDO (No NDRV FET), TAGE (V) V V TAGE (V) IN LDO (No NDRV NFET) EXTV IN LDO (No NDRV FET) CC = 0V EXTVCC = 8.5V EXTV VOL VOL EXTVCC = 0V CC = 0V VOL 8.5 CC 5.0 CC 5.0 CC DRV EXTV DRV CC RISING DRV EXTV 8.0 CC FALLING EXTVCC RISING 4.5 EXTVCC = 5V 4.5 7.5 EXTVCC FALLING DRVUV = DRVSET = 0V DRVUV = DRVSET = 0V DRVUV = DRVSET = INTV 4.0 4.0 CC 7.0 0 20 40 60 80 100 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 LOAD CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3896 G10 3896 G11 3896 G12
SENSE– Pins Input Current vs SENSE– Pin Input Bias Current vs Undervoltage Lockout Threshold VSENSE Voltage Temperature vs Temperature
1000 1000 8.0 RISING 900 900 7.5 800 800 V DRVUV = INTV OUT ≥ INTVCC + 0.5V 7.0 CC 700 700 6.5 FALLING 600 600 6.0 TAGE (V) 500 500 5.5 VOL – CURRENT (µA) 400 – CURRENT (µA) 400 CC 5.0 300 DRV 4.5 SENSE 300 SENSE RISING DRVUV = 0V 200 200 4.0 100 100 3.5 FALLING VOUT ≤ INTVCC – 0.5V 0 0 3.0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 VSENSE COMMON MODE VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3896 G13 3896 G14 3896 G15
Maximum Current Sense Foldback Current Limit Threshold vs ITH Voltage RUN Threshold vs Temperature
100 100 1.40 5% DUTY CYCLE 90 80 1.35 80 TAGE (mV) PULSE–SKIPPING 1.30 70 60 Burst Mode TAGE (mV) 60 OPERATION 1.25 40 RUN RISING 50 1.20 40 20 1.15 30 TAGE REFERENCED TO GND (V) 0 ILIM = GND 1.10 20 RUN FALLING ILIM = FLOAT CURRENT SENSE VOL ILIM = FLOAT –20 10 ILIM = GND ILIM = INTV 1.05 CC MAXIMUM CURRENT SENSE VOL ILIM = INTVCC FORCED CONTINUOUS RUN PIN VOL 0 –40 1.00 0 100 200 300 400 500 600 700 800 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 –75 –50 –25 0 25 50 75 100 125 150 FEEDBACK VOLTAGE (mV) VITH (V) TEMPERATURE (°C) 3896 G16 3896 G17 3896 G18 3896f For more information www.linear.com/LTC3896 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
Typical perForMance characTerisTics V – – IN and VOUT with respect to GND. All other voltages with respect to VOUT , unless otherwise noted. EXTVCC Switchover and DRVCC EXTVCC Switchover and DRVCC DRVCC vs Load Current Voltages vs Temperature Voltages vs Temperature
6.5 6.5 10.5 NDRV LDO (NDRV FET), EXTVCC = 8.5V EXTVCC = 8.5V EXTVCC = 0V 10.0 6.0 6.0 9.5 NDRV LDO (NDRV FET) NDRV LDO (NDRV NFET) 5.5 5.5 EXTV EXTVCC = 0V CC = 0V TAGE (V) V 9.0 IN LDO (No NDRV FET), TAGE (V) V V TAGE (V) IN LDO (No NDRV NFET) EXTV IN LDO (No NDRV FET) CC = 0V EXTVCC = 8.5V EXTV VOL VOL EXTVCC = 0V CC = 0V VOL 8.5 CC 5.0 CC 5.0 CC DRV EXTV DRV CC RISING DRV EXTV 8.0 CC FALLING EXTVCC RISING 4.5 EXTVCC = 5V 4.5 7.5 EXTVCC FALLING DRVUV = DRVSET = 0V DRVUV = DRVSET = 0V DRVUV = DRVSET = INTV 4.0 4.0 CC 7.0 0 20 40 60 80 100 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 LOAD CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3896 G10 3896 G11 3896 G12
SENSE– Pins Input Current vs SENSE– Pin Input Bias Current vs Undervoltage Lockout Threshold VSENSE Voltage Temperature vs Temperature
1000 1000 8.0 RISING 900 900 7.5 800 800 V DRVUV = INTV OUT ≥ INTVCC + 0.5V 7.0 CC 700 700 6.5 FALLING 600 600 6.0 TAGE (V) 500 500 5.5 VOL – CURRENT (µA) 400 – CURRENT (µA) 400 CC 5.0 300 DRV 4.5 SENSE 300 SENSE RISING DRVUV = 0V 200 200 4.0 100 100 3.5 FALLING VOUT ≤ INTVCC – 0.5V 0 0 3.0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 VSENSE COMMON MODE VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3896 G13 3896 G14 3896 G15
Maximum Current Sense Foldback Current Limit Threshold vs ITH Voltage RUN Threshold vs Temperature
100 100 1.40 5% DUTY CYCLE 90 80 1.35 80 TAGE (mV) PULSE–SKIPPING 1.30 70 60 Burst Mode TAGE (mV) 60 OPERATION 1.25 40 RUN RISING 50 1.20 40 20 1.15 30 TAGE REFERENCED TO GND (V) 0 ILIM = GND 1.10 20 RUN FALLING ILIM = FLOAT CURRENT SENSE VOL ILIM = FLOAT –20 10 ILIM = GND ILIM = INTV 1.05 CC MAXIMUM CURRENT SENSE VOL ILIM = INTVCC FORCED CONTINUOUS RUN PIN VOL 0 –40 1.00 0 100 200 300 400 500 600 700 800 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 –75 –50 –25 0 25 50 75 100 125 150 FEEDBACK VOLTAGE (mV) VITH (V) TEMPERATURE (°C) 3896 G16 3896 G17 3896 G18 3896f For more information www.linear.com/LTC3896 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts