Datasheet LTC3897-2 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | PolyPhase Synchronous Boost Controller with Input/Output Protection |
| Pages / Page | 50 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. … |
| Revision | A |
| File Format / Size | PDF / 3.9 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Regulated Feedback Voltage
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LTC3897-2
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Regulated Feedback Voltage Soft-Start Pull-Up Current vs Temperature vs Temperature Shutdown Current vs Temperature
1.212 11.0 20 18 1.209 16 1.206 10.5 TAGE (V) 14 1.203 12 1.200 10.0 10 T CURRENT (µA) AR 8 1.197 T-ST TED FEFEDBACK VOL 6 1.194 9.5 SOF SHUTDOWN CURRENT (µA) 4 REGULA 1.191 2 1.188 9.0 0 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 38972 G09 38972 G10 38972 G11
Shutdown Current Input Supply Current vs BOOST Shutdown (RUN) vs Input Voltage Temperature Threshold vs Temperature
18 400.0 1.40 VIN = VBIAS RUN = 0V 17 350.0 SGEN = DGEN = 12V 1.35 IS+ = IS– = CS – 0.1V 16 300.0 1.30 15 RUN RISING 250.0 TAGE (V) 14 200.0 1.25 T CURRENT (µA) Y CURRENT (µA) AR 13 150.0 QUIESCENT CURRENT RUN FALLING T-ST 1.20 VFB = 1.25V 12 RUN PIN VOL SOF 100.0 SGEN = DGEN = 0V INPUT SUPPL 1.15 11 50.0 10 0 1.10 0 12.5 25 37.5 50 62.5 75 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 INPUT VOLTAGE (V) TEMPRATURE (°C) INPUT VOLTAGE (V) 38972 G12 38972 G13 38972 G14
Undervoltage Lockout Threshold DRVCC and EXTVCC vs Temperature DRVCC Line Regulation vs Load Current
9 11 6.4 DRVSET = INTVCC DRVSET = INTV 6.2 CC 8 EXTVCC = 0V DRVCC RISING 10 6.0 5.8 7 DRVCC FALLING EXTVCC = 8.5V 9 5.6 6 5.4 TAGE (V) TAGE (V) TAGE (V) 8 5.2 VOL 5 DRVSET = GND VOL VOL CC 5.0 CC CC DRVCC RISING DRV 7 4.8 EXTV 4 CC = 5V DRV DRV 4.6 DRVCC FALLING DRVSET = GND 3 6 4.4 VBIAS = 12V 4.2 DRVSET = GND 2 5 4.0 –75 –50 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) LOAD CURRENT (mA) 38972 G15 38972 G16 38972 G17 Rev. A 8 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
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Regulated Feedback Voltage Soft-Start Pull-Up Current vs Temperature vs Temperature Shutdown Current vs Temperature
1.212 11.0 20 18 1.209 16 1.206 10.5 TAGE (V) 14 1.203 12 1.200 10.0 10 T CURRENT (µA) AR 8 1.197 T-ST TED FEFEDBACK VOL 6 1.194 9.5 SOF SHUTDOWN CURRENT (µA) 4 REGULA 1.191 2 1.188 9.0 0 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 38972 G09 38972 G10 38972 G11
Shutdown Current Input Supply Current vs BOOST Shutdown (RUN) vs Input Voltage Temperature Threshold vs Temperature
18 400.0 1.40 VIN = VBIAS RUN = 0V 17 350.0 SGEN = DGEN = 12V 1.35 IS+ = IS– = CS – 0.1V 16 300.0 1.30 15 RUN RISING 250.0 TAGE (V) 14 200.0 1.25 T CURRENT (µA) Y CURRENT (µA) AR 13 150.0 QUIESCENT CURRENT RUN FALLING T-ST 1.20 VFB = 1.25V 12 RUN PIN VOL SOF 100.0 SGEN = DGEN = 0V INPUT SUPPL 1.15 11 50.0 10 0 1.10 0 12.5 25 37.5 50 62.5 75 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 INPUT VOLTAGE (V) TEMPRATURE (°C) INPUT VOLTAGE (V) 38972 G12 38972 G13 38972 G14
Undervoltage Lockout Threshold DRVCC and EXTVCC vs Temperature DRVCC Line Regulation vs Load Current
9 11 6.4 DRVSET = INTVCC DRVSET = INTV 6.2 CC 8 EXTVCC = 0V DRVCC RISING 10 6.0 5.8 7 DRVCC FALLING EXTVCC = 8.5V 9 5.6 6 5.4 TAGE (V) TAGE (V) TAGE (V) 8 5.2 VOL 5 DRVSET = GND VOL VOL CC 5.0 CC CC DRVCC RISING DRV 7 4.8 EXTV 4 CC = 5V DRV DRV 4.6 DRVCC FALLING DRVSET = GND 3 6 4.4 VBIAS = 12V 4.2 DRVSET = GND 2 5 4.0 –75 –50 –25 0 25 50 75 100 125 150 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 0 25 50 75 100 125 150 TEMPERATURE (°C) INPUT VOLTAGE (V) LOAD CURRENT (mA) 38972 G15 38972 G16 38972 G17 Rev. A 8 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
