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参数资料
| 型号： | LTC4012IUF-3#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/28页 |
| 文件大小： | 0K |
| 描述： | IC CTLR BATT CHARGER CC/CV 20QFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 多化学 |
| 电源电压： | 6 V ~ 28 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN 裸露焊盘（4x4） |
| 包装： | 带卷 (TR) |
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LTC4012-3
TYPICAL PERFORMANCE CHARACTERISTICS
(T A = 25°C unless otherwise noted. L = IHLP-2525 6.8μH)
Charge Current Accuracy
Charge Current Line Regulation
2
1
0
–1
–2
–3
–4
–5
DCIN = 24V
R PROG = 35.7k
DCIN = 12V
R PROG = 26.7k
R SENSE = 33m
R IN = 3.01k
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
BAT = 6V
R SENSE = 33m
R IN = 3.01k
I CHG = 1A
I CHG = 2A
I CHG = 3A
–6
0
2
4
6
8 10 12 14 16 18 20 22 24
–0.5
5
10
15
20
25
BAT (V)
4012-3 G07
Charge Current Load Regulation
DCIN (V)
Input Current Limit
4012-3 G08
3.5
3.0
2.5
2.0
1.5
1.0
0.5
I CHG = 3A
I CHG = 2A
I CHG = 1A
3.0
2.5
2.0
1.5
1.0
0.5
0
I IN
I CHG
2.5A BULK CHARGE
2.1A INPUT CURRENT LIMIT
R SENSE = 33m
R IN = 3.01k
0
–0.5
DCIN = 20V
11.0 11.4
11.8 12.2
12.6
13.0
–0.5
–1.0
0
0.5
ICL STATE
1.0 1.5
2.0
2.5
I CHG
2A/DIV
ITH
1V/DIV
PROG
1V/DIV
SHDN
5V/DIV
BAT (V)
PWM Soft-Start
4012-3 G09
SYSTEM LOAD (A)
Gate Drive Non-Overlap
BGATE
TGATE
4012-3 G10
TIME (500μs/DIV)
4012-3 G11
TIME (80ns/DIV)
4012-3 G12
40123fb
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| LTC4020EUHF#PBF | 制造商:Linear Technology 功能描述:Battery Charger Lead-Acid/Li-FePO4/Li-Ion/Li-Pol 20000mA 55V 38-Pin QFN EP 制造商:Linear Technology 功能描述:IC BATT CHARGER 55V BB 38QFN 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38, Input Voltage:55V, Battery Charge Voltage:55V, Charge Current Max:20A, Battery IC Case Style:QFN, No. of Pins:38, No. of Series Cells:12, Operating Temperature Min:-40C, Operating Temperature Max:125C , RoHS Compliant: Yes |
| LTC4020EUHF#TRPBF | 制造商:Linear Technology 功能描述:Battery Charger Lead-Acid/Li-FePO4/Li-Ion/Li-Pol 20000mA 55V 38-Pin QFN EP T/R 制造商:Linear Technology 功能描述:IC BATT CHARGER 55V BB 38QFN 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38, Input Voltage:55V, Battery Charge Voltage:55V, Charge Current Max:20A, Battery IC Case Style:QFN, No. of Pins:38, No. of Series Cells:12, Operating Temperature Min:-40C, Operating Temperature Max:125C , RoHS Compliant: Yes |
| LTC4020IUHF#PBF | 制造商:Linear Technology 功能描述:Battery Charger Lead-Acid/Li-FePO4/Li-Ion/Li-Pol 20000mA 55V 38-Pin QFN EP 制造商:Linear Technology 功能描述:IC BATT CHARGER 55V BB 38QFN 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38, Input Voltage:55V, Battery Charge Voltage:55V, Charge Current Max:20A, Battery IC Case Style:QFN, No. of Pins:38, No. of Series Cells:12, Operating Temperature Min:-40C, Operating Temperature Max:125C , RoHS Compliant: Yes |
| LTC4020IUHF#TRPBF | 制造商:Linear Technology 功能描述:Battery Charger Lead-Acid/Li-FePO4/Li-Ion/Li-Pol 20000mA 55V 38-Pin QFN EP T/R 制造商:Linear Technology 功能描述:IC BATT CHARGER 55V BB 38QFN 制造商:Linear Technology 功能描述:BATTERY CHARGER, 20A, QFN-38, Input Voltage:55V, Battery Charge Voltage:55V, Charge Current Max:20A, Battery IC Case Style:QFN, No. of Pins:38, No. of Series Cells:12, Operating Temperature Min:-40C, Operating Temperature Max:125C , RoHS Compliant: Yes |
| LTC4050 | 制造商:LINEAR 制造商全称:LINEAR 功能描述:Standalone 250mA Li-Ion Battery Charger in 2 × 2 DFN |
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