Datasheet LTC7817 (Analog Devices) - 10
| 制造商 | Analog Devices |
| 描述 | 40V, Low IQ, 3MHz, Triple Output Buck/Buck/Boost Synchronous Controller |
| 页数 / 页 | 44 / 10 — TYPICAL PERFORMANCE CHARACTERISTICS. EXTV. EXT CC. V Switchover and … |
| 文件格式/大小 | PDF / 3.0 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. EXTV. EXT CC. V Switchover and INTVCC. INTV. INT CC. V Undervoltage Lockout
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LTC7817
TYPICAL PERFORMANCE CHARACTERISTICS EXTV EXT CC V Switchover and INTVCC INTV INT CC V Undervoltage Lockout CC Undervoltage Lockout INTV CC Switchover and INTVCC INT CC V Voltage vs Current Voltage vs T V emperature oltage vs T Thresholds vs Temperature CC Voltage vs Current Thresholds vs T
5.4 5.4 4.4 VBIAS = 12V 5.2 5.2 4.3 INTV EXTV CC Voltage CC = 0V UVLO RISING 5.0 4.2 EXTVCC = 6V TAGE (V) 5.0 4.8 TAGE (V) VOL 4.1 EXTVCC = 5V V CC 4.8 VOL 4.6 EXTVCC Rising 4.0 V CC UVLO FALLING INT 4.6 OR EXT 4.4 UVLO THRESHOLD (V) 3.9 V CC EXTVCC Falling 4.2 INT 4.4 3.8 4.0 4.2 3.7 0 50 100 150 200 250 300 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 INTVCC LOAD CURRENT (mA) TEMPERATURE (oC) TEMPERATURE (oC) 7817 G28 7817 G29 7817 G30
RUN Pin Thresholds VBIAS V Sleep Mode Quiescent BIAS Quiescent Current Shutdown Current Shutdown Current vs Temperature vs T Current vs T vs T emperature emperature vs VBIAS Input V vs Input V oltage oltage
1.26 40 8.0 Rising VBIAS = 12V 1.24 Falling 35 ALL CHANNELS ON SLEEP MODE 7.0 1.22 30 6.0 1.20 1.18 25 5.0 EXTV 150°C CC = 0V, SENSE1–=0V 1.16 20 4.0 1.14 CURRENT (μA) 15 CURRENT (μA) 3.0 1.12 EXTVCC = 0V, SENSE1–=3.3V 25°C RUN THRESHOLD (V) V BIAS 10 V BIAS 2.0 1.10 –55°C 1.08 5 1.0 EXTVCC = 12V, SENSE1–=3.3V 1.06 0 0 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 0 5 10 15 20 25 30 35 40 TEMPERATURE (oC) TEMPERATURE (oC) VBIAS INPUT VOLTAGE (V) 7817 G31 7817 G32 7817 G33 Rev 0 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS EXTV EXT CC V Switchover and INTVCC INTV INT CC V Undervoltage Lockout CC Undervoltage Lockout INTV CC Switchover and INTVCC INT CC V Voltage vs Current Voltage vs T V emperature oltage vs T Thresholds vs Temperature CC Voltage vs Current Thresholds vs T
5.4 5.4 4.4 VBIAS = 12V 5.2 5.2 4.3 INTV EXTV CC Voltage CC = 0V UVLO RISING 5.0 4.2 EXTVCC = 6V TAGE (V) 5.0 4.8 TAGE (V) VOL 4.1 EXTVCC = 5V V CC 4.8 VOL 4.6 EXTVCC Rising 4.0 V CC UVLO FALLING INT 4.6 OR EXT 4.4 UVLO THRESHOLD (V) 3.9 V CC EXTVCC Falling 4.2 INT 4.4 3.8 4.0 4.2 3.7 0 50 100 150 200 250 300 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 INTVCC LOAD CURRENT (mA) TEMPERATURE (oC) TEMPERATURE (oC) 7817 G28 7817 G29 7817 G30
RUN Pin Thresholds VBIAS V Sleep Mode Quiescent BIAS Quiescent Current Shutdown Current Shutdown Current vs Temperature vs T Current vs T vs T emperature emperature vs VBIAS Input V vs Input V oltage oltage
1.26 40 8.0 Rising VBIAS = 12V 1.24 Falling 35 ALL CHANNELS ON SLEEP MODE 7.0 1.22 30 6.0 1.20 1.18 25 5.0 EXTV 150°C CC = 0V, SENSE1–=0V 1.16 20 4.0 1.14 CURRENT (μA) 15 CURRENT (μA) 3.0 1.12 EXTVCC = 0V, SENSE1–=3.3V 25°C RUN THRESHOLD (V) V BIAS 10 V BIAS 2.0 1.10 –55°C 1.08 5 1.0 EXTVCC = 12V, SENSE1–=3.3V 1.06 0 0 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 0 5 10 15 20 25 30 35 40 TEMPERATURE (oC) TEMPERATURE (oC) VBIAS INPUT VOLTAGE (V) 7817 G31 7817 G32 7817 G33 Rev 0 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Typical Application Related Parts