Datasheet Linear Technology LT3652 — 数据表

制造商	Linear Technology
系列	LT3652

太阳能电源跟踪2A电池充电器

数据表

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PDF, 534 Kb, 语言: en, 文件上传: Sep 30, 2017, 页数: 26
Power Tracking 2A Battery Charger for Solar Power

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	LT3652EDD#PBF	LT3652EDD#TRPBF	LT3652EMSE#PBF	LT3652EMSE#TRPBF	LT3652IDD#PBF	LT3652IDD#TRPBF	LT3652IMSE#PBF	LT3652IMSE#TRPBF
N	1	2	3	4	5	6	7	8
Package	3x3 DFN-12 包装外形图	3x3 DFN-12 包装外形图	MS-12E 包装外形图	MS-12E 包装外形图	3x3 DFN-12 包装外形图	3x3 DFN-12 包装外形图	MS-12E 包装外形图	MS-12E 包装外形图
Package Code	DD	DD	MSE	MSE	DD	DD	MSE	MSE
Package Index	05-08-1725	05-08-1725	05-08-1666	05-08-1666	05-08-1725	05-08-1725	05-08-1666	05-08-1666
Pin Count	12	12	12	12	12	12	12	12

参数化

Parameters / Models	LT3652EDD#PBF	LT3652EDD#TRPBF	LT3652EMSE#PBF	LT3652EMSE#TRPBF	LT3652IDD#PBF	LT3652IDD#TRPBF	LT3652IMSE#PBF	LT3652IMSE#TRPBF
Battery Chemistry	Li-Ion, Li-Polymer, LiFePO4, Lead Acid	Li-Ion, Li-Polymer, LiFePO4, Lead Acid	Li-Ion, Li-Polymer, LiFePO4, Lead Acid	Li-Ion, Li-Polymer, LiFePO4, Lead Acid	Li-Ion, Li-Polymer, LiFePO4, Lead Acid	Li-Ion, Li-Polymer, LiFePO4, Lead Acid	Li-Ion, Li-Polymer, LiFePO4, Lead Acid	Li-Ion, Li-Polymer, LiFePO4, Lead Acid
Charge Termination	C/10, Timer	C/10, Timer	C/10, Timer	C/10, Timer	C/10, Timer	C/10, Timer	C/10, Timer	C/10, Timer
Demo Boards	DC1568A	DC1568A	DC1568A	DC1568A	DC1568A	DC1568A	DC1568A	DC1568A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Export Control	no	no	no	no	no	no	no	no
Features	Maximum Power Point Control	Maximum Power Point Control	Maximum Power Point Control	Maximum Power Point Control	Maximum Power Point Control	Maximum Power Point Control	Maximum Power Point Control	Maximum Power Point Control
Float Voltage, V	Up to 14.4V	Up to 14.4V	Up to 14.4V	Up to 14.4V	Up to 14.4V	Up to 14.4V	Up to 14.4V	Up to 14.4V
Internal Pass Element	yes	yes	yes	yes	yes	yes	yes	yes
Max Charge Current, A	2	2	2	2	2	2	2	2
Number of Cells	1-3 Li-Ion/Li-Poly, 1-4 LiFePO4, SLA up to 14.4V	1-3 Li-Ion/Li-Poly, 1-4 LiFePO4, SLA up to 14.4V	1-3 Li-Ion/Li-Poly, 1-4 LiFePO4, SLA up to 14.4V	1-3 Li-Ion/Li-Poly, 1-4 LiFePO4, SLA up to 14.4V	1-3 Li-Ion/Li-Poly, 1-4 LiFePO4, SLA up to 14.4V	1-3 Li-Ion/Li-Poly, 1-4 LiFePO4, SLA up to 14.4V	1-3 Li-Ion/Li-Poly, 1-4 LiFePO4, SLA up to 14.4V	1-3 Li-Ion/Li-Poly, 1-4 LiFePO4, SLA up to 14.4V
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Type of Charger	Switching	Switching	Switching	Switching	Switching	Switching	Switching	Switching
Vin Max, V	32	32	32	32	32	32	32	32
Vin Min, V	4.95	4.95	4.95	4.95	4.95	4.95	4.95	4.95

生态计划

	LT3652EDD#PBF	LT3652EDD#TRPBF	LT3652EMSE#PBF	LT3652EMSE#TRPBF	LT3652IDD#PBF	LT3652IDD#TRPBF	LT3652IMSE#PBF	LT3652IMSE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

文章

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Battery Charger's Unique Input Regulation Loop Simplifies Solar Panel Maximum Power Point Tracking &mdash LT Journal
PDF, 854 Kb, 档案已发布: Jan 18, 2011
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Battery ChargerвЂ™s Unique Input Regulation Loop Simplifies
Solar Panel Maximum Power Point Tracking
Jay Celani Solar panels have great potential as
energy harvesting power sourcesвЂ”they
just need batteries to store the harvested
power and to provide carry-though during dark periods. Solar panels are relatively expensive, so extracting maximum
power from the panels is paramount to
minimizing the panel size. The tricky part
is a balancing of solar panel size with
required power. The characteristics of
solar panels require careful management
of the panelвЂ™s output power versus load
to effectively optimize the panelвЂ™s output
power for various lighting conditions. (see FigureВ 1). Maintaining this peakpower point during operation as lighting
conditions change is called maximum
peak power tracking (MPPT). Complex
algorithms are often used to perform this
function, such as varying the panelвЂ™s load
periodically while directly measuring panel
output voltage and output current, calculating panel output power, then forcing
the point of operation that provides the
peak output power as illumination and/or
temperature conditions change. This type …
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Designing a Solar Cell Battery Charger &mdash LT Journal
PDF, 306 Kb, 档案已发布: Dec 1, 2009
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LвЂ‰DESIGN FEATURES Designing a Solar Cell Battery Charger
by Jim Drew LT3652 Input Voltage
Regulation Loop The input voltage regulation loop of the
LT3652 acts over a specific input voltage range. When VIN, as measured via a
resistor divider at the VIN_REG pin, falls
12 2.4 24 2.2 IPANEL (A) 22 1000W/m2 2 20 1.8 18 1.6 16 1.4 14 1.2 12 1 10 0.8 8 0.6 6 0.4 4 0.2
0 100W/m
0 2 4 2 2 6
8
10
VPANEL (V) 12 14 16 0 Figure 1. A solar cell produces current in proportion to the amount of sunlight falling on it, while
the cellвЂ™s open-circuit voltage remains relatively constant. Maximum power output occurs at
the knee of each curve, where the cell transitions from a constant voltage device to a constant
current device, as shown by the power curves. below a certain set point, the charge
current is reduced. The charging current is adjusted via a control voltage
across a current sensing resistor in
series with the inductor of the buck
regulator charging circuit. Decreased
illumination (and/or increased charge
current demands) can both cause the
input voltage (panel voltage) to fall,
pushing the panel away from its point
of maximum power output. With the …
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Solar Battery Charger Maintains High Efficiency in Low Light &mdash LT Journal
PDF, 3.0 Mb, 档案已发布: Oct 9, 2013
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Solar Battery Charger Maintains High Efficiency in Low Light
J. Celani An important characteristic of any solar panel is that
it achieves peak power output at a relatively constant
operating voltage (VMP) regardless of illumination level (see
FigureВ 1). The LT3652 2A battery charger exploits this
characteristic to maintain a solar panel at peak operating
efficiency by implementing input voltage regulation (patent
pending). When available solar power is inadequate
to meet the power requirements of an LT3652 battery
charger, input voltage regulation reduces the battery
charge current. This reduces the load on the solar panel
to maintain the panel voltage at VMP, maximizing the
panel output power. This method of achieving peak panel
efficiency is called maximum power point control (MPPC).
While MPPC optimizes solar panel efficiency during periods of low illumination, the power conversion efficiency of
the battery charger suffers when power
levels are low, degrading the overall power
transfer efficiency from the panel to the
battery. This article shows how to improve
battery charger efficiency by applying
a simple PWM charging technique that
forces the battery charger to release energy
in bursts when power levels are low. …

模型线

系列: LT3652 (8)

LT3652EDD#PBF LT3652EDD#TRPBF LT3652EMSE#PBF LT3652EMSE#TRPBF LT3652IDD#PBF LT3652IDD#TRPBF LT3652IMSE#PBF LT3652IMSE#TRPBF

制造商分类

Power Management > Battery Management > Battery Charger IC > Switching Battery Chargers
Power Management > Energy Harvesting