Datasheet LTC4126 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 7.5mA Wireless Li-Ion Charger with 1.2V Step-Down DC/DC Converter |
| Pages / Page | 22 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| File Format / Size | PDF / 2.3 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Charge Voltage vs Temperature
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LTC4126
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Charge Voltage vs Temperature Charge Voltage vs Temperature Charge Current vs Battery Voltage (VSEL = 0V) (VSEL = 5V)
8 4.23 4.38 VCC = 5V VCC = 5V 7 4.22 4.37 VCC = 5V 6 4.21 4.36 5 4.20 4.35 TAGE (V) TAGE (V) 4 4.19 4.34 3 4.18 4.33 CHARGE VOL CHARGE VOL CHARGE CURRENT (mA) 2 4.17 4.32 1 VSEL = 0V 4.16 4.31 VSEL = 5V 0 4.15 4.30 2.7 3 3.3 3.6 3.9 4.2 4.5 –20 –5 10 25 40 55 70 85 –20 –5 10 25 40 55 70 85 VBAT (V) TEMPERATURE (°C) TEMPERATURE (°C) 4126 G01 4126 G09 4126 G02
Charge Current vs VCC-to-VBAT Li-Ion Battery Charge Profile Differential Voltage Charge Current vs Temperature
8.0 4.3 8 8.0 VBAT = 3.8V VCC = 5V 7.0 4.2 7 7.9 VBAT = 3.8V VCC = 5V 7.8 6.0 VSEL = 0V 4.1 6 7.7 5.0 4.0 5 V 7.6 BAT 4.0 3.9 (V) 4 7.5 3.0 3.8 3 7.4 7.3 CHARGE CURRENT (mA) 2.0 3.7 CHARGE CURRENT (mA) 2 CHARGE CURRENT (mA) 7.2 1.0 3.6 1 CHARGE CURRENT 7.1 BATTERY VOLTAGE 0 3.5 0 7.0 0 50 100 150 200 250 300 350 400 0 50 100 150 200 250 –20 –5 10 25 40 55 70 85 TIME (MIN) VCC - VBAT (mV) TEMPERATURE (°C) 4126 G03 4126 G04 4126 G05
VCC Quiescent Current vs ACIN and VCC Waveform when CHRG Pin Current vs Temperature Temperature Shunt Active
310 54 10 VCC = 5V V VCC 305 BAT = 4.5V ACIN NTC ENABLED 52 6 300 295 50 2 ) (µA) 290 CC TAGE (V) I(V 48 285 CURRENT (µA) –2 VOL 280 V 46 CC = 5V –6 275 CHARGING DONE CHRG PIN PULLED UP TO 5V 270 44 –20 –5 10 25 40 55 70 85 –20 –5 10 25 40 55 70 85 –10 TEMPERATURE (°C) TEMPERATURE (°C) TIME (100µs/DIV) 4126 G06 4126 G07 4126 G08 Rev. 0 For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Charge Voltage vs Temperature Charge Voltage vs Temperature Charge Current vs Battery Voltage (VSEL = 0V) (VSEL = 5V)
8 4.23 4.38 VCC = 5V VCC = 5V 7 4.22 4.37 VCC = 5V 6 4.21 4.36 5 4.20 4.35 TAGE (V) TAGE (V) 4 4.19 4.34 3 4.18 4.33 CHARGE VOL CHARGE VOL CHARGE CURRENT (mA) 2 4.17 4.32 1 VSEL = 0V 4.16 4.31 VSEL = 5V 0 4.15 4.30 2.7 3 3.3 3.6 3.9 4.2 4.5 –20 –5 10 25 40 55 70 85 –20 –5 10 25 40 55 70 85 VBAT (V) TEMPERATURE (°C) TEMPERATURE (°C) 4126 G01 4126 G09 4126 G02
Charge Current vs VCC-to-VBAT Li-Ion Battery Charge Profile Differential Voltage Charge Current vs Temperature
8.0 4.3 8 8.0 VBAT = 3.8V VCC = 5V 7.0 4.2 7 7.9 VBAT = 3.8V VCC = 5V 7.8 6.0 VSEL = 0V 4.1 6 7.7 5.0 4.0 5 V 7.6 BAT 4.0 3.9 (V) 4 7.5 3.0 3.8 3 7.4 7.3 CHARGE CURRENT (mA) 2.0 3.7 CHARGE CURRENT (mA) 2 CHARGE CURRENT (mA) 7.2 1.0 3.6 1 CHARGE CURRENT 7.1 BATTERY VOLTAGE 0 3.5 0 7.0 0 50 100 150 200 250 300 350 400 0 50 100 150 200 250 –20 –5 10 25 40 55 70 85 TIME (MIN) VCC - VBAT (mV) TEMPERATURE (°C) 4126 G03 4126 G04 4126 G05
VCC Quiescent Current vs ACIN and VCC Waveform when CHRG Pin Current vs Temperature Temperature Shunt Active
310 54 10 VCC = 5V V VCC 305 BAT = 4.5V ACIN NTC ENABLED 52 6 300 295 50 2 ) (µA) 290 CC TAGE (V) I(V 48 285 CURRENT (µA) –2 VOL 280 V 46 CC = 5V –6 275 CHARGING DONE CHRG PIN PULLED UP TO 5V 270 44 –20 –5 10 25 40 55 70 85 –20 –5 10 25 40 55 70 85 –10 TEMPERATURE (°C) TEMPERATURE (°C) TIME (100µs/DIV) 4126 G06 4126 G07 4126 G08 Rev. 0 For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
