Datasheet LT8709 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | Negative Input Synchronous Multi-Topology DC/DC Controller |
| 页数 / 页 | 48 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, all voltages relative to … |
| 文件格式/大小 | PDF / 802 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, all voltages relative to –VIN. unless otherwise noted
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LT8709
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, all voltages relative to –VIN unless otherwise noted. INTVCC UVLO vs Temperature Minimum Operating Input Voltage INTVCC vs Temperature (Rising and Falling)
4.35 6.40 4.2 IINTVCC = 10mA 4.33 4.1 4.31 6.36 RISING 4.29 4.0 (V) 4.27 6.32 3.9 BIAS (V) (V) 4.25 V CC V CC 4.23 INT 6.28 INT 3.8 GND OR V FALLING 4.21 3.7 4.19 6.24 3.6 4.17 4.15 6.20 3.5 –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) 8709 G19 8709 G20 8709 G21
INTVCC Current Limit vs GND or BIAS INTVCC Dropout from GND or BIAS INTVEE vs Temperature
150 500 6.28 IINTVEE = 10mA GND 125 450 6.24 INTVCC > 3.5V 100 (V) 400 (V) V CC BIAS 6.20 V EE 75 350 BIAS INTV GND CC > 3.5V 6.16 CURRENT LIMIT (mA) 50 INPUT - INT 300 BIAS - INT V CC INT GND OR BIAS 25 250 6.12 INTVCC < 3.5V 0 200 6.08 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 –50 –25 0 25 50 75 100 125 INPUT VOLTAGE (V) INTVCC LOAD CURRENT (mA) TEMPERATURE (°C) 8709 G22 8709 G23 8709 G24
INTVEE UVLO vs Temperature (Rising and Falling) INTVEE Current Limit vs BIAS INTVEE Dropout (BIAS = 6V)
3.6 75 1.2 –40°C 1.1 25°C 3.5 125°C 60 RISING 1.0 3.4 (V) (V) 0.9 45 V EE –VIN 3.3 BIAS - INTVEE =5V –V 0.8 FALLING 30 V EE 0.7 BIAS - INT 3.2 CURRENT LIMIT (mA) INT V EE 0.6 INT 15 3.1 0.5 3.0 0 0.4 –50 –25 0 25 50 75 100 125 10 20 30 40 50 60 70 80 0 10 20 30 40 50 TEMPERATURE (°C) BIAS (V) INTVEE LOAD CURRENT (mA) 8709 G25 8709 G26 8709 G27 8709fa 8 For more information www.linear.com/LT8709
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, all voltages relative to –VIN unless otherwise noted. INTVCC UVLO vs Temperature Minimum Operating Input Voltage INTVCC vs Temperature (Rising and Falling)
4.35 6.40 4.2 IINTVCC = 10mA 4.33 4.1 4.31 6.36 RISING 4.29 4.0 (V) 4.27 6.32 3.9 BIAS (V) (V) 4.25 V CC V CC 4.23 INT 6.28 INT 3.8 GND OR V FALLING 4.21 3.7 4.19 6.24 3.6 4.17 4.15 6.20 3.5 –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) 8709 G19 8709 G20 8709 G21
INTVCC Current Limit vs GND or BIAS INTVCC Dropout from GND or BIAS INTVEE vs Temperature
150 500 6.28 IINTVEE = 10mA GND 125 450 6.24 INTVCC > 3.5V 100 (V) 400 (V) V CC BIAS 6.20 V EE 75 350 BIAS INTV GND CC > 3.5V 6.16 CURRENT LIMIT (mA) 50 INPUT - INT 300 BIAS - INT V CC INT GND OR BIAS 25 250 6.12 INTVCC < 3.5V 0 200 6.08 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 –50 –25 0 25 50 75 100 125 INPUT VOLTAGE (V) INTVCC LOAD CURRENT (mA) TEMPERATURE (°C) 8709 G22 8709 G23 8709 G24
INTVEE UVLO vs Temperature (Rising and Falling) INTVEE Current Limit vs BIAS INTVEE Dropout (BIAS = 6V)
3.6 75 1.2 –40°C 1.1 25°C 3.5 125°C 60 RISING 1.0 3.4 (V) (V) 0.9 45 V EE –VIN 3.3 BIAS - INTVEE =5V –V 0.8 FALLING 30 V EE 0.7 BIAS - INT 3.2 CURRENT LIMIT (mA) INT V EE 0.6 INT 15 3.1 0.5 3.0 0 0.4 –50 –25 0 25 50 75 100 125 10 20 30 40 50 60 70 80 0 10 20 30 40 50 TEMPERATURE (°C) BIAS (V) INTVEE LOAD CURRENT (mA) 8709 G25 8709 G26 8709 G27 8709fa 8 For more information www.linear.com/LT8709