Datasheet LTC4123 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | Low Power Wireless Charger for Hearing Aids |
| Pages / Page | 18 / 4 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| File Format / Size | PDF / 1.1 Mb |
| Document Language | English |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Battery Charge Current. Battery Charge Voltage
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LTC4123
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Battery Charge Current Battery Charge Voltage Battery Charge Voltage vs Battery Charge Voltage vs Temperature vs Supply Voltage
12.0 1.600 1.520 1.580 CHARGE VOLTAGE CHARGE VOLTAGE MAX 10.0 1.560 CHARGE VOLTAGE MIN 1.515 1.540 8.0 1.520 1.510 1.500 (mA) 6.0 (V) (V) 1.480 I CHG V BAT V BAT 1.505 4.0 1.460 1.440 2.0 1.420 1.500 RPROG = 2.49kΩ 1.400 RPROG = 23.7kΩ RPROG = 23.7kΩ 0 1.380 1.495 1.30 1.35 1.40 1.45 1.50 1.55 1.60 –5 10 25 40 55 70 2.5 3 3.5 4 4.5 5 VBAT (V) TEMPERATURE (°C) SUPPLY VOLTAGE (V) 4123 G01 4123 G02 4123 G03
PROG Pin Voltage vs Temperature Undervoltage Current Limit: Charge Current (Constant Current Mode) Charge Current vs Supply Voltage vs PROG Pin Voltage
260 12.0 1.00 RPROG = 2.49kΩ 10.0 0.80 255 8.0 0.60 (mV) 250 (mA) 6.0 (mA) V PROG I CHG I CHG 0.40 4.0 245 0.20 2.0 R R PROG = 23.7k PROG = 23.7kΩ 240 0 0 –5 10 25 40 55 70 2 2.2 2.4 2.6 2.8 3.0 0 50 100 150 200 250 TEMPERATURE (°C) SUPPLY VOLTAGE (V) VPROG (mV) 4123 G04 4123 G05 4123 G06
Input Quiescent Current Battery Leakage Current UVLO Threshold vs Temperature vs Supply Voltage vs Temperature (Rising and Falling)
150 100 2.00 VBAT = –100mV 80 1.98 140 60 40 1.96 130 20 (nA) 1.94 TAGE (V) (µA) 0 I VCC 120 T(LEAK) –20 Y VOL 1.92 I BA –40 SUPPL 1.90 110 –60 V 1.88 –80 CC = 0V UVLO FALLING VBAT = 2V UVLO RISING 100 –100 1.86 2 2.5 3 3.5 4 4.5 5 –20 –5 10 25 40 55 70 85 –20 –5 10 25 40 55 70 85 SUPPLY VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 4123 G07 4123 G08 4123 G09 4123fa 4 For more information www.linear.com/LTC4123
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Battery Charge Current Battery Charge Voltage Battery Charge Voltage vs Battery Charge Voltage vs Temperature vs Supply Voltage
12.0 1.600 1.520 1.580 CHARGE VOLTAGE CHARGE VOLTAGE MAX 10.0 1.560 CHARGE VOLTAGE MIN 1.515 1.540 8.0 1.520 1.510 1.500 (mA) 6.0 (V) (V) 1.480 I CHG V BAT V BAT 1.505 4.0 1.460 1.440 2.0 1.420 1.500 RPROG = 2.49kΩ 1.400 RPROG = 23.7kΩ RPROG = 23.7kΩ 0 1.380 1.495 1.30 1.35 1.40 1.45 1.50 1.55 1.60 –5 10 25 40 55 70 2.5 3 3.5 4 4.5 5 VBAT (V) TEMPERATURE (°C) SUPPLY VOLTAGE (V) 4123 G01 4123 G02 4123 G03
PROG Pin Voltage vs Temperature Undervoltage Current Limit: Charge Current (Constant Current Mode) Charge Current vs Supply Voltage vs PROG Pin Voltage
260 12.0 1.00 RPROG = 2.49kΩ 10.0 0.80 255 8.0 0.60 (mV) 250 (mA) 6.0 (mA) V PROG I CHG I CHG 0.40 4.0 245 0.20 2.0 R R PROG = 23.7k PROG = 23.7kΩ 240 0 0 –5 10 25 40 55 70 2 2.2 2.4 2.6 2.8 3.0 0 50 100 150 200 250 TEMPERATURE (°C) SUPPLY VOLTAGE (V) VPROG (mV) 4123 G04 4123 G05 4123 G06
Input Quiescent Current Battery Leakage Current UVLO Threshold vs Temperature vs Supply Voltage vs Temperature (Rising and Falling)
150 100 2.00 VBAT = –100mV 80 1.98 140 60 40 1.96 130 20 (nA) 1.94 TAGE (V) (µA) 0 I VCC 120 T(LEAK) –20 Y VOL 1.92 I BA –40 SUPPL 1.90 110 –60 V 1.88 –80 CC = 0V UVLO FALLING VBAT = 2V UVLO RISING 100 –100 1.86 2 2.5 3 3.5 4 4.5 5 –20 –5 10 25 40 55 70 85 –20 –5 10 25 40 55 70 85 SUPPLY VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 4123 G07 4123 G08 4123 G09 4123fa 4 For more information www.linear.com/LTC4123
