Datasheet LTC4040 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 2.5A Battery Backup Power Manager |
| 页数 / 页 | 26 / 6 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 1.4 Mb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. IBAT vs VBAT (Li–Ion) with. (Li-Ion) with Different
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LTC4040
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. IBAT vs VBAT (Li–Ion) with (Li-Ion) with Different IB I AT B vs V AT B vs V AT B (LiFePO AT 4 (LiFePO ) with 4) with Step–Down Charger Efficiency Step-Down Charger Efficiency Different Charge V Charge V oltage Settings oltage Settings Different Charge Voltage Settings Different Charge V vs VB vs V AT B
1000 1000 100 95 800 VSYS = 5V 800 VSYS = 5V RPROG = 2k R 90 PROG = 2k 600 600 85 (mA) (mA) 80 R I BAT PROG = 4k 400 I BAT 400 F2 = 1, F1 = 0, F0 = 0 75 R EFFICIENCY (%) PROG = 2k F2 = 1, F1 = 0, F0 = 1 RPROG = 1.33k F2 = 1, F1 = 1, F0 = 0 F2 = 0, F1 = 0, F0 = 0 70 R V 200 PROG = 1k SYS = 5V F2 = 1, F1 = 1, F0 = 1 200 F2 = 0, F1 = 0, F0 = 1 RPROG = 0.8k F2 = F1 = F0 = 1 F2 = 0, F1 = 1, F0 = 0 65 F2 = 0, F1 = 1, F0 = 1 0 0 60 2.7 3 3.3 3.6 3.9 4.2 2.7 2.9 3.1 3.3 3.5 3.7 2.8 3.0 3.2 3.4 3.6 3.8 4.0 VBAT (V) VBAT (V) VBAT (V) 4040 G01 4040 G02 4040 G03
IBAT vs VBAT (Li–Ion) with (Li-Ion) with Different IBAT vs V AT BAT (LiFePO AT 4) with 4) with Battery Charge Voltage (Li-Ion) Battery Charge Voltage (Li-Ion) Different PROG Resistor V PROG Resistor Values alues Different PROG Resistor Values Different PROG Resistor V vs Temperature vs Temperature
3000 3000 4.20 VSYS = 5V VSYS = 5V F2, F1, F0 = 1 F2 = 0, F1 = F0 = 0 4.15 2500 2500 R 4.10 PROG = 0.8k RPROG = 0.8k 4.05 2000 2000 RPROG = 1k RPROG = 1k 4.00 (mA) 1500 (mA) 1500 (V) 3.95 RPROG = 1.33k I BAT I BAT RPROG = 1.33k V BAT 3.90 1000 1000 R 3.85 PROG = 2k RPROG = 2k 3.80 500 500 RPROG = 4K RPROG = 4k V 3.75 SYS = 5V F2 = F1 = F0 = 1 0 0 3.70 2.7 3.0 3.3 3.6 3.9 4.2 2.7 2.9 3.1 3.3 3.5 3.7 –50 –30 –10 10 30 50 70 90 110 130 VBAT (V) VBAT (V) TEMPERATURE (°C) 4040 G04 4040 G05 4040 G06
Step-Down Charger PMOS Step-Down Charger NMOS Step–Down Charger Oscillator Step-Down Charger Oscillator Step–Down Charger PMOS R On-Resistance vs VSYS over ds(ON) Step–Down Charger NMOS R On-Resistance vs VSYS over DS(ON) Frequency vs Temperature Frequency vs T vs V T SYS over T emperature emperature vs V T SYS over T emperature emperature
2.30 200 200 180 180 2.20 130°C 130°C 90°C 160 160 2.10 60°C 90°C 140 25°C ANCE (mΩ) 140 ANCE (mΩ) 60°C 2.00 VIN = 5.5V –10°C 25°C FREQUENCY (MHz) V 120 120 IN = 5.0V RESIST RESIST V –45°C IN = 3.6V –10°C 1.90 VBAT = 3.2V 100 100 –45°C 1.80 80 80 –45 –10 25 60 95 130 3.6 3.8 4 4.2 4.4 4.6 4.8 5.0 3.6 3.8 4 4.2 4.4 4.6 4.8 5.0 TEMPERATURE (°C) VSYS (V) VSYS (V) 4040 G07 4040 G08 4040 G09 4040fb 6 For more information www.linear.com/LTC4040 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 Application Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. IBAT vs VBAT (Li–Ion) with (Li-Ion) with Different IB I AT B vs V AT B vs V AT B (LiFePO AT 4 (LiFePO ) with 4) with Step–Down Charger Efficiency Step-Down Charger Efficiency Different Charge V Charge V oltage Settings oltage Settings Different Charge Voltage Settings Different Charge V vs VB vs V AT B
1000 1000 100 95 800 VSYS = 5V 800 VSYS = 5V RPROG = 2k R 90 PROG = 2k 600 600 85 (mA) (mA) 80 R I BAT PROG = 4k 400 I BAT 400 F2 = 1, F1 = 0, F0 = 0 75 R EFFICIENCY (%) PROG = 2k F2 = 1, F1 = 0, F0 = 1 RPROG = 1.33k F2 = 1, F1 = 1, F0 = 0 F2 = 0, F1 = 0, F0 = 0 70 R V 200 PROG = 1k SYS = 5V F2 = 1, F1 = 1, F0 = 1 200 F2 = 0, F1 = 0, F0 = 1 RPROG = 0.8k F2 = F1 = F0 = 1 F2 = 0, F1 = 1, F0 = 0 65 F2 = 0, F1 = 1, F0 = 1 0 0 60 2.7 3 3.3 3.6 3.9 4.2 2.7 2.9 3.1 3.3 3.5 3.7 2.8 3.0 3.2 3.4 3.6 3.8 4.0 VBAT (V) VBAT (V) VBAT (V) 4040 G01 4040 G02 4040 G03
IBAT vs VBAT (Li–Ion) with (Li-Ion) with Different IBAT vs V AT BAT (LiFePO AT 4) with 4) with Battery Charge Voltage (Li-Ion) Battery Charge Voltage (Li-Ion) Different PROG Resistor V PROG Resistor Values alues Different PROG Resistor Values Different PROG Resistor V vs Temperature vs Temperature
3000 3000 4.20 VSYS = 5V VSYS = 5V F2, F1, F0 = 1 F2 = 0, F1 = F0 = 0 4.15 2500 2500 R 4.10 PROG = 0.8k RPROG = 0.8k 4.05 2000 2000 RPROG = 1k RPROG = 1k 4.00 (mA) 1500 (mA) 1500 (V) 3.95 RPROG = 1.33k I BAT I BAT RPROG = 1.33k V BAT 3.90 1000 1000 R 3.85 PROG = 2k RPROG = 2k 3.80 500 500 RPROG = 4K RPROG = 4k V 3.75 SYS = 5V F2 = F1 = F0 = 1 0 0 3.70 2.7 3.0 3.3 3.6 3.9 4.2 2.7 2.9 3.1 3.3 3.5 3.7 –50 –30 –10 10 30 50 70 90 110 130 VBAT (V) VBAT (V) TEMPERATURE (°C) 4040 G04 4040 G05 4040 G06
Step-Down Charger PMOS Step-Down Charger NMOS Step–Down Charger Oscillator Step-Down Charger Oscillator Step–Down Charger PMOS R On-Resistance vs VSYS over ds(ON) Step–Down Charger NMOS R On-Resistance vs VSYS over DS(ON) Frequency vs Temperature Frequency vs T vs V T SYS over T emperature emperature vs V T SYS over T emperature emperature
2.30 200 200 180 180 2.20 130°C 130°C 90°C 160 160 2.10 60°C 90°C 140 25°C ANCE (mΩ) 140 ANCE (mΩ) 60°C 2.00 VIN = 5.5V –10°C 25°C FREQUENCY (MHz) V 120 120 IN = 5.0V RESIST RESIST V –45°C IN = 3.6V –10°C 1.90 VBAT = 3.2V 100 100 –45°C 1.80 80 80 –45 –10 25 60 95 130 3.6 3.8 4 4.2 4.4 4.6 4.8 5.0 3.6 3.8 4 4.2 4.4 4.6 4.8 5.0 TEMPERATURE (°C) VSYS (V) VSYS (V) 4040 G07 4040 G08 4040 G09 4040fb 6 For more information www.linear.com/LTC4040 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 Application Package Description Revision History Typical Application Related Parts