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参数资料
| 型号： | LTC4012IUF-3#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 28/28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 APPLICATION
12.6V 4 Amp Charger
7
5
6
Q1
DCIN
CSP
0.1μF
OR
Q4
FROM
ADAPTER
15V AT 4A
BULK
CHARGE
C1 R1
0.1μF 3k
TO/FROM
MCU
R6
53.6k
D1 R
4
R2
10k
8
12
C2
0.1μF
R4
6.04k
13
R5 C3
26.7k 4.7nF
INFET
CHRG
CLP
CLN
GND BOOST
TGATE
LTC4012-3
SW
INTV DD
ICL BGATE
SHDN
GND
ITH
CSN
BAT
PROG FBDIV
V FB
3
2
1
20
19
18
17
16
21
15
14
11
10
9
Q5
R15
0 *
R7
25m
C4
R8
5.1k
C5
0.1μF
D3
C6
2μF
R9 3.01k
R10 3.01k
R12 C10
294k 10pF
R13
31.2k
Q2
Q3
C9
10μF
C8
10μF
D4
+
D5
L1
4.7μH
R11
25m
12.6V
Li-Ion
BATTERY
40123 TA03
POWER TO SYSTEM
D6
18V
R14 ZENER
100k
TO POWER SYSTEM LOAD
WHEN ADAPTER IS NOT
PRESENT, USE
SCHOTTKY DIODE D5 OR
THE COMBINATION OF R14, R2
D6 AND Q4
D3: CMDSH-3
D4: MBR230LSFT1
Q1: 2N7002
Q2, Q3: Si7218DN
Q4, Q5: Si7423DN
L1: 1HLP-2525CZER4R7M11
*: SEE TGATE BOOST SUPPLY IN
APPLICATIONS INFORMATION
RELATED PARTS
PART NUMBER
LTC4006
LTC4007
LTC4008/LTC4008-1
LTC4009/LTC4009-1
LTC4009-2
LTC4012/LTC4012-1
LTC4012-2
LTC4060
LTC4411
LTC4412/LTC4412HV
LTC4413
LTC4414
LTC4416
DESCRIPTION
Small, High Efficiency, Fixed Voltage, Lithium-Ion
Battery Chargers with Termination
High Efficiency, Programmable Voltage, Lithium-Ion
Battery Charger with Termination
High Efficiency, Programmable Voltage/Current Battery
Chargers
High Efficiency, Multichemistry Battery Charger
High Efficiency, Multi Chemistry Battery Chargers with
PowerPath Control
Standalone Linear NiMH/NiCd Fast Charger
2.6A Low Loss Idea Diode
Low Loss PowerPath Controllers
Dual 2.6A, 2.5V to 5.5V Ideal Diodes
36V, Low Loss PowerPath Controller for Large PFETs
Dual Low Loss PowerPath Controllers
COMMENTS
Complete Charger for 3- or 4-Cell Li-Ion Batteries, AC Adapter Current
Limit and Thermistor Sensor, 16-pin SSOP Package
Complete Charger for 3- or 4-Cell Li-Ion Batteries, AC Adapter Current
Limit, Thermistor Sensor and Indicator Outputs
Constant-Current/Constant-Voltage Switching Regulator, Resistor
Voltage/Current Programming, Thermistor Sensor and Indicator
Outputs, AC Adapter Current Limit (Omitted on 4008-1)
Constant-Current/Constant-Voltage Switching Regulator in a 20-Lead
QFN Package, AC Adapter Current Limit, Indicator Outputs
Constant-Current/Constant-Voltage Switching Regulator in a 20-Lead
QFN Package, AC Adaptor Current Limit PFET Input Ideal Diode Control,
3 Indicator Outputs
Complete NiMH/NiCd Charger in a Small 16-Pin Package, No Sense
Resistor or Blocking Diode Required
No External MOSFET, Automatic Switching Between DC sources, 140mΩ
On Resistance in ThinSOT TM package
Very Low Loss Replacement for Power Supply ORing Diodes Using
Minimal External Complements, Operates up to 28V (36V for HV)
Low Loss Replacement for ORing Diodes, 100mΩ On Resistance
Low Loss Replacement for ORing Diodes, Operates up to 36V
Low Loss Replacement for ORing Diodes, Operates up to 36V, Drives
Large PFETs, Programmable, Autonomous Switching
40123fb
1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408)432-1900 FAX: (408) ● www.linear.com ●
Linear Technology 434-0507 Corporation
LT 0610 REV B ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2009
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相关代理商/技术参数 |
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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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