Datasheet LTC3897-2 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | PolyPhase Synchronous Boost Controller with Input/Output Protection |
| Pages / Page | 50 / 10 — Ideal Diode Regulation Voltage. TMR Current vs VIN – IS– Voltage. TMR … |
| Revision | A |
| File Format / Size | PDF / 3.9 Mb |
| Document Language | English |
Ideal Diode Regulation Voltage. TMR Current vs VIN – IS– Voltage. TMR Current vs Temperature. vs VIN. Overcurrent Threshold vs
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LTC3897-2
Ideal Diode Regulation Voltage TMR Current vs VIN – IS– Voltage TMR Current vs Temperature vs VIN
32 –250 200 T = 155°C TMR = 1V VSG – VCS = VDG – VCS = 5V –225 185 T = –55°C VIN = 12V T = 25°C –200 170 TAGE (mV) 31 –175 OVERCURRENT CONDITION 155 DG PULL–DOWN CURRENT –150 140 VSG – VCS = 200mV TION VOL 30 –125 125 –100 110 TMR CURRENT (µA) –75 95 SG PULL–DOWN CURRENT 29 OVERVOLTAGE CONDITION –50 TE PULL-DOWN CURRENT (mA) V 80 IS+ – VIS– = 100mV OR VSPFB = 1.5V GA –25 65 IDEAL DIODE REGULA 28 0 50 0 15 30 45 60 75 0 15 30 45 60 75 –75 –50 –25 0 25 50 75 100 125 150 VIN (V) V TEMPERATURE (°C) 38972 G27 IN – IS– VOLTAGE (V) 38972 G28 38972 G29
Overcurrent Threshold vs SG(DG) Charging Current IS– Voltage vs VIN Voltage
60 15 VSG = VDG = VCS = VIN 14 50 13 40 12 11 30 10 9 20 8 OVERCURRENT THREADSHOLD (mV) SG(DG) CHARGING CURRENT (mV) 7 10 0 0.50 1 1.50 2 2.50 3 3.50 4 4.50 5 6 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 IS– VOLTAGE (V) 38972 G30 VIN VOLTAGE (V) 38972 G31
SG(DG) GATE Voltage vs GATE SG(DG) GATE Voltage vs VIN Pull-Down Current Voltage
15 15 14 14 V 13 V SG(DG) – VCS SG(DG) – VCS 13 12 12 TAGE (v) TAGE (v) 11 11 TE VOL 10 TE VOL 10 9 9 SG(DG) GA 8 SG(DG) GA 8 7 7 6 6 0 1 2 3 4 5 6 7 8 9 10 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 GATE PULLDOWN CURRENT (µA) VIN VOLTAGE (V) 38972 G32 38972 G33 Rev. A 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 Block Diagram Operation Applications Information Typical Applications Typical Application Related Parts
Ideal Diode Regulation Voltage TMR Current vs VIN – IS– Voltage TMR Current vs Temperature vs VIN
32 –250 200 T = 155°C TMR = 1V VSG – VCS = VDG – VCS = 5V –225 185 T = –55°C VIN = 12V T = 25°C –200 170 TAGE (mV) 31 –175 OVERCURRENT CONDITION 155 DG PULL–DOWN CURRENT –150 140 VSG – VCS = 200mV TION VOL 30 –125 125 –100 110 TMR CURRENT (µA) –75 95 SG PULL–DOWN CURRENT 29 OVERVOLTAGE CONDITION –50 TE PULL-DOWN CURRENT (mA) V 80 IS+ – VIS– = 100mV OR VSPFB = 1.5V GA –25 65 IDEAL DIODE REGULA 28 0 50 0 15 30 45 60 75 0 15 30 45 60 75 –75 –50 –25 0 25 50 75 100 125 150 VIN (V) V TEMPERATURE (°C) 38972 G27 IN – IS– VOLTAGE (V) 38972 G28 38972 G29
Overcurrent Threshold vs SG(DG) Charging Current IS– Voltage vs VIN Voltage
60 15 VSG = VDG = VCS = VIN 14 50 13 40 12 11 30 10 9 20 8 OVERCURRENT THREADSHOLD (mV) SG(DG) CHARGING CURRENT (mV) 7 10 0 0.50 1 1.50 2 2.50 3 3.50 4 4.50 5 6 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 IS– VOLTAGE (V) 38972 G30 VIN VOLTAGE (V) 38972 G31
SG(DG) GATE Voltage vs GATE SG(DG) GATE Voltage vs VIN Pull-Down Current Voltage
15 15 14 14 V 13 V SG(DG) – VCS SG(DG) – VCS 13 12 12 TAGE (v) TAGE (v) 11 11 TE VOL 10 TE VOL 10 9 9 SG(DG) GA 8 SG(DG) GA 8 7 7 6 6 0 1 2 3 4 5 6 7 8 9 10 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 GATE PULLDOWN CURRENT (µA) VIN VOLTAGE (V) 38972 G32 38972 G33 Rev. A 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 Block Diagram Operation Applications Information Typical Applications Typical Application Related Parts
