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参数资料
| 型号： | LT3652EDD#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 3 A BATTERY CHARGE CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO12 |
| 封装： | 3 X 3 MM, LEAD FREE, PLASTIC, DFN-12 |
| 文件页数： | 1/26页 |
| 文件大小： | 253K |
| 代理商： | LT3652EDD#TRPBF |
LT3652
1
3652fc
TYPICAL APPLICATION
DESCRIPTION
Power Tracking 2A Battery
Charger for Solar Power
The LT3652 is a complete monolithic step-down bat-
tery charger that operates over a 4.95V to 32V input
voltage range. The LT3652 provides a constant-current/
constant-voltage charge characteristic, with maximum
charge current externally programmable up to 2A. The
charger employs a 3.3V oat voltage feedback reference,
so any desired battery oat voltage up to 14.4V can be
programmed with a resistor divider.
The LT3652 employs an input voltage regulation loop, which
reduces charge current if the input voltage falls below a
programmed level, set with a resistor divider. When the
LT3652 is powered by a solar panel, the input regulation
loop is used to maintain the panel at peak output power.
The LT3652 can be congured to terminate charging
when charge current falls below 1/10 of the programmed
maximum (C/10). Once charging is terminated, the LT3652
enters a low-current (85μA) standby mode. An auto-re-
charge feature starts a new charging cycle if the battery
voltage falls 2.5% below the programmed oat voltage.
The LT3652 also contains a programmable safety timer,
used to terminate charging after a desired time is reached.
This allows top-off charging at currents less than C/10.
2A Solar Panel Power Manager With 7.2V LiFePO4 Battery
and 17V Peak Power Tracking
FEATURES
APPLICATIONS
n Input Supply Voltage Regulation Loop for Peak
Power Tracking in (MPPT) Solar Applications
n Wide Input Voltage Range: 4.95V to 32V (40V Abs Max)
n Programmable Charge Rate Up to 2A
n User Selectable Termination: C/10 or On-Board
Termination Timer
n Resistor Programmable Float Voltage Up to 14.4V
Accommodates Li-Ion/Polymer, LiFePO4, SLA,
NiMH/NiCd Chemistries
n No VIN Blocking Diode Required for Battery
Voltages ≤ 4.2V
n 1MHz Fixed Frequency
n 0.5% Float Voltage Reference Accuracy
n 5% Charge Current Accuracy
n 2.5% C/10 Detection Accuracy
n Binary-Coded Open-Collector Status Pins
n 3mm × 3mm DFN12 or MSOP-12 Packages
n Solar Powered Applications
n Remote Monitoring Stations
n LiFePO4 (Lithium Phosphate) Applications
n Portable Handheld Instruments
n 12V to 24V Automotive Systems
Solar Panel Input Voltage
Regulation, Tracks Max Power
Point to Greater Than 98%
SW
VIN
SOLAR PANEL INPUT
(<40V OC VOLTAGE)
VIN_REG
VFB
BOOST
SENSE
BAT
NTC
TIMER
CMSH3-40MA
SYSTEM LOAD
1μF
542k
459k
3652 TA01a
10k
B = 3380
2-CELL LiFePO4 (2 × 3.6V) BATTERY PACK
+
10μF
CMSH1-40MA
10μF
10μH
0.05
LT3652
530k
100k
SHDN
CHRG
FAULT
CMSH3-40MA
CHARGER OUTPUT CURRENT (A)
0.2
INPUT
REGULATION
VOLTAGE
(V)
10
12
14
20
18
16
0.6
1
1.2
3652 TA01b
22
0.4
0.8
1.6
1.4
2
1.8
100% TO 98% PEAK POWER
98% TO 95% PEAK POWER
TA = 25°C
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3652EMSE | 制造商:LINER 制造商全称:Linear Technology 功能描述:Power Tracking 2A Battery Charger for Solar Power |
| LT3652EMSE#PBF | 功能描述:IC BATTERY CHARGER SOLAR 12MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LT3652EMSE#PBF | 制造商:Linear Technology 功能描述:BATTERY CHARGER FOR SOLAR POWER 制造商:Linear Technology 功能描述:IC, BATTERY CHARGER, 2A, MSOP-12 |
| LT3652EMSE#TRPBF | 功能描述:IC BATT CHARGER SOLAR 2A 12MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LT3652EMSEPBF | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion 2A 4.2V MSOP12EP |
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