參數(shù)資料
型號(hào)： LT3652HVEMSE#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： BATTERY CHARGE CONTROLLER, PDSO12
封裝： LEAD FREE, PLASTIC, MSOP-12
文件頁(yè)數(shù)： 1/24頁(yè)
文件大?。?/td> 250K
代理商： LT3652HVEMSE#TRPBF
LT3652HV
1
3652hvf
TYPICAL APPLICATION
DESCRIPTION
Power Tracking 2A Battery
Charger
The LT3652HV is a complete monolithic step-down bat-
tery charger that operates over a 4.95V to 34V input range.
The LT3652HV 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 18V can be programmed with a
resistor divider.
The LT3652HV 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
LT3652HV is powered by a solar panel, the input regulation
loop is used to maintain the panel at peak output power.
TheLT3652HVcanbeconguredtoterminatechargingwhen
chargecurrentfallsbelow1/10oftheprogrammedmaximum
(C/10). Once charging is terminated, the LT3652HV enters a
low-current(85μA)standbymode.Anauto-rechargefeature
starts a new charging cycle if the battery voltage falls 2.5%
below the programmed oat voltage. The LT3652HV 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.
FEATURES
APPLICATIONS
n Input Supply Voltage Regulation Loop for Peak
Power Tracking in (MPPT) Solar Applications
n Wide Input Voltage Range: 4.95V to 34V (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 18V
Accommodates 4-Cell Li-Ion/Polymer, 5-Cell
LiFePO4, Lead-Acid Chemistries
n Parallelable for Higher Output Current
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 Solar Powered Applications
n Remote Monitoring Stations
n Portable Handheld Instruments
n 12V to 24V Automotive Systems
n Battery Charging from Current Limited Adapter
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
VIN_REG Loop Servos Maximum Charge Current to Prevent AC Adapter Output from
Drooping Lower Than 24V 5-Cell LiFePO4 Charger (18V at 1.5A) with C/10 Termination
Powered by Inexpensive 24VDC/1A Unregulated Wall Adapter.
SW
VIN
AC ADAPTER
INPUT
24VDC AT 1A
VIN_REG
VFB
BOOST
SENSE
BAT
NTC
TIMER
1μF 10V
1N4148
127k
3652 TA01a
R1
10K
B = 3380
10μF
20μH
10μF
5-Cell LiFePO4 PACK
(18V FLOAT)
SYSTEM
LOAD
+
LT3652HV
44.2k
750k
MBRS340
D3
MBRS340
51.1k
SHDN
CHRG
FAULT
150k
665k
0.068
ADAPTER OUTPUT CURRENT (A)
0
0.2
ADAPTER
OUTPUT
VOLTAGE
(V)
12
15
18
33
30
27
24
21
0.6
1
1.2
3652 TA01b
36
0.4
0.8
1.6
1.4
2
1.8
1A/24VDC Unregulated Adapter
I vs V Characteristic
相關(guān)PDF資料
PDF描述
LT3652HVEDD#TRPBF BATTERY CHARGE CONTROLLER, PDSO12
LT3663EMS8E-3.3#PBF 2.5 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, PDSO8
LT3663IMS8E-3.3#PBF 2.5 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, PDSO8
LT3663IMS8E#TRPBF 2.5 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, PDSO8
LT3663HMS8E-3.3#TRPBF 2.5 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, PDSO8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LT3652HVIDD-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Power Tracking 2A Battery Charger
LT3652HVIDD-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Power Tracking 2A Battery Charger
LT3652HVIMSE#PBF 功能描述:IC BATTERY CHARGER 2A 12-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR)
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