Datasheet LTC4121, LTC4121-4.2 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | 40V 400mA Synchronous Step-Down Battery Charger |
| Pages / Page | 30 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. IN … |
| File Format / Size | PDF / 383 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. IN Pin Standby Current
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LTC4121/LTC4121-4.2
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. IN Pin Standby Current Typical VFB(REG) vs Temperature Typical VFLOAT vs Temperature vs Temperature
2.43 4.25 180 4 UNITS TESTED LTC4121 VIN = 15V VIN = 15V 4.24 170 2.42 HIGH LIMIT 4.23 3 UNITS TESTED DUT1 VFLOAT 160 LTC4121-4.2 2.41 DUT2 V 4.22 FLOAT V 150 IN = 5V DUT3 VFLOAT 4.21 LOW LIMIT (V) 2.40 140 (V) T 4.20 (µA) 130 2.39 I IN V FB(REG) V FLOA 4.19 120 HIGH LIMIT DUT3 2.38 DUT1 DUT4 4.18 110 DUT2 LOW LIMIT 4.17 100 2.37 STANDBY FREQ HIGH 4.16 90 STANDBY FREQ LOW 2.36 4.15 80 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 4121 G01 4121 G02 4121 G03
IN Pin Sleep/Disabled/Shutdown BAT Pin Sleep/Shutdown Current Feedback Pin Standby or Sleep/ Current vs Temperature vs Temperature Disabled Current vs Temperature
90 8 60 VIN = 15V LTC4121 LTC4121 STANDBY VFB = 2.51V 80 7 SLEEP/DIS V 50 FB = 2.51V 70 6 60 SLEEP VBAT = 8.4V 40 5 SLEEP VBAT = 4.2V 50 SHUTDOWN VBAT = 8.4V (µA) (µA) 4 SHUTDOWN VBAT = 4.2V (nA) 30 I IN 40 I BAT I FB 3 30 20 20 2 SLEEP 10 10 DIS 1 SD 0 0 0 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 4121 G04 4121 G05 4121 G06
BATSNS Pin Sleep/Standby or Shutdown/Disabled Current BAT Pin Standby/Sleep/Shutdown Typical RSNS Current Limit IPEAK vs Temperature Current vs Temperature vs Temperature
8 800 1120 LTC4121-4.2 LTC4121-4.2 3 UNITS TESTED DUT1 7 700 SHUTDOWN VBAT = 4.25V 1100 DUT2 STANDBY VBAT = 4.25V DUT3 6 600 SLEEP V 1080 BAT = 4.25V 1040 5 500 (µA) 1020 4 SLEEP/STANDBY VBATSNS = 4.25V (nA) 400 (mA) TSNS SHUTDOWN/DIS VBATSNS = 4.25V I BAT 1000 I BA 3 300 I PEAK 980 2 200 960 1 100 940 0 0 920 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 4121 G07 4121 G08 4121 G09 4121fc 6 For more information www.linear.com/LTC4121 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Applications Examples Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. IN Pin Standby Current Typical VFB(REG) vs Temperature Typical VFLOAT vs Temperature vs Temperature
2.43 4.25 180 4 UNITS TESTED LTC4121 VIN = 15V VIN = 15V 4.24 170 2.42 HIGH LIMIT 4.23 3 UNITS TESTED DUT1 VFLOAT 160 LTC4121-4.2 2.41 DUT2 V 4.22 FLOAT V 150 IN = 5V DUT3 VFLOAT 4.21 LOW LIMIT (V) 2.40 140 (V) T 4.20 (µA) 130 2.39 I IN V FB(REG) V FLOA 4.19 120 HIGH LIMIT DUT3 2.38 DUT1 DUT4 4.18 110 DUT2 LOW LIMIT 4.17 100 2.37 STANDBY FREQ HIGH 4.16 90 STANDBY FREQ LOW 2.36 4.15 80 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 4121 G01 4121 G02 4121 G03
IN Pin Sleep/Disabled/Shutdown BAT Pin Sleep/Shutdown Current Feedback Pin Standby or Sleep/ Current vs Temperature vs Temperature Disabled Current vs Temperature
90 8 60 VIN = 15V LTC4121 LTC4121 STANDBY VFB = 2.51V 80 7 SLEEP/DIS V 50 FB = 2.51V 70 6 60 SLEEP VBAT = 8.4V 40 5 SLEEP VBAT = 4.2V 50 SHUTDOWN VBAT = 8.4V (µA) (µA) 4 SHUTDOWN VBAT = 4.2V (nA) 30 I IN 40 I BAT I FB 3 30 20 20 2 SLEEP 10 10 DIS 1 SD 0 0 0 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 4121 G04 4121 G05 4121 G06
BATSNS Pin Sleep/Standby or Shutdown/Disabled Current BAT Pin Standby/Sleep/Shutdown Typical RSNS Current Limit IPEAK vs Temperature Current vs Temperature vs Temperature
8 800 1120 LTC4121-4.2 LTC4121-4.2 3 UNITS TESTED DUT1 7 700 SHUTDOWN VBAT = 4.25V 1100 DUT2 STANDBY VBAT = 4.25V DUT3 6 600 SLEEP V 1080 BAT = 4.25V 1040 5 500 (µA) 1020 4 SLEEP/STANDBY VBATSNS = 4.25V (nA) 400 (mA) TSNS SHUTDOWN/DIS VBATSNS = 4.25V I BAT 1000 I BA 3 300 I PEAK 980 2 200 960 1 100 940 0 0 920 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 4121 G07 4121 G08 4121 G09 4121fc 6 For more information www.linear.com/LTC4121 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Applications Examples Package Description Typical Application Related Parts
