Datasheet LTC4020 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 55V Buck-Boost Multi-Chemistry Battery Charger |
| 页数 / 页 | 42 / 7 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 425 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. BST Refresh Regulator Dropout
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LTC4020
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. BST Refresh Regulator Dropout Ideal Diode VF vs Battery Voltage Ideal Diode VF vs Temperature INTVCC vs IINTVCC
16.0 24 4.5 V PV BAT = 20V IN = 4.5V 15.5 22 4.4 15.0 20 25°C (mV) F 14.5 (mV) F 18 (V) 4.3 14.0 16 V INTVCC 4.2 13.5 125°C IDEAL DIODE V IDEAL DIODE V 14 13.0 4.1 12.5 12 12.0 10 4.0 0 5 10 15 20 25 30 35 40 45 50 55 –40 –25 –10 5 20 35 50 65 80 95 110 125 0 10 20 30 40 50 V TEMPERATURE (°C) I BAT (V) INTVCC (mA) 4020 G10 4020 G11 4020 G12
Feedback References vs Input CSOUT vs CSP-CSN Voltage INTVCC vs VIN
1.3 2.80 5.10 I 1.2 2.75 INTVCC = 5mA 5.08 VFBMAX 1.1 2.70 5.06 1.0 2.65 5.04 0.9 2.60 5.02 (V) 0.8 2.55 (V) VFLOAT(CC/CV;ABSORB) 5.00 0.7 2.50 V CSOUT V INTVCC 4.98 0.6 2.45 0.5 2.40 4.96 FEEDBACK REFERENCES (V) 0.4 2.35 4.94 VFLOAT(LEAD-ACID) 0.3 2.30 4.92 0.2 2.25 4.90 0 10 20 30 40 50 5 10 15 20 25 30 35 40 45 50 55 5 10 15 20 25 30 35 40 45 50 55 V(CSP-CSN) (mV) VIN (V) VIN (V) 4020 G13 4020 G14 4020 G15
Switching Frequency vs Input Switching Frequency vs IRNG/SS, ILIMIT, INTC, vs Voltage Temperature Temperature
255 255 52.5 RRT = 100kΩ V 254 IN = 20V 254 52.0 RRT = 100kΩ 253 253 51.5 252 252 (µA) 51.0 251 251 NTC 50.5 , I 250 250 50.0 LIMIT, I 249 249 49.5 248 248 49.0 I RNG/SS SWITCHING FREQUENCY (kHz) 247 247 48.5 SWITCHING FREQUENCY (kHz) 246 246 48.0 245 245 47.5 0 10 20 30 40 50 60 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 VIN (V) TEMPERATURE (°C) TEMPERATURE (°C) 4020 G16 4020 G17 4020 G18 4020fd For more information www.linear.com/LTC4020 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. BST Refresh Regulator Dropout Ideal Diode VF vs Battery Voltage Ideal Diode VF vs Temperature INTVCC vs IINTVCC
16.0 24 4.5 V PV BAT = 20V IN = 4.5V 15.5 22 4.4 15.0 20 25°C (mV) F 14.5 (mV) F 18 (V) 4.3 14.0 16 V INTVCC 4.2 13.5 125°C IDEAL DIODE V IDEAL DIODE V 14 13.0 4.1 12.5 12 12.0 10 4.0 0 5 10 15 20 25 30 35 40 45 50 55 –40 –25 –10 5 20 35 50 65 80 95 110 125 0 10 20 30 40 50 V TEMPERATURE (°C) I BAT (V) INTVCC (mA) 4020 G10 4020 G11 4020 G12
Feedback References vs Input CSOUT vs CSP-CSN Voltage INTVCC vs VIN
1.3 2.80 5.10 I 1.2 2.75 INTVCC = 5mA 5.08 VFBMAX 1.1 2.70 5.06 1.0 2.65 5.04 0.9 2.60 5.02 (V) 0.8 2.55 (V) VFLOAT(CC/CV;ABSORB) 5.00 0.7 2.50 V CSOUT V INTVCC 4.98 0.6 2.45 0.5 2.40 4.96 FEEDBACK REFERENCES (V) 0.4 2.35 4.94 VFLOAT(LEAD-ACID) 0.3 2.30 4.92 0.2 2.25 4.90 0 10 20 30 40 50 5 10 15 20 25 30 35 40 45 50 55 5 10 15 20 25 30 35 40 45 50 55 V(CSP-CSN) (mV) VIN (V) VIN (V) 4020 G13 4020 G14 4020 G15
Switching Frequency vs Input Switching Frequency vs IRNG/SS, ILIMIT, INTC, vs Voltage Temperature Temperature
255 255 52.5 RRT = 100kΩ V 254 IN = 20V 254 52.0 RRT = 100kΩ 253 253 51.5 252 252 (µA) 51.0 251 251 NTC 50.5 , I 250 250 50.0 LIMIT, I 249 249 49.5 248 248 49.0 I RNG/SS SWITCHING FREQUENCY (kHz) 247 247 48.5 SWITCHING FREQUENCY (kHz) 246 246 48.0 245 245 47.5 0 10 20 30 40 50 60 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 VIN (V) TEMPERATURE (°C) TEMPERATURE (°C) 4020 G16 4020 G17 4020 G18 4020fd For more information www.linear.com/LTC4020 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts