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参数资料
| 型号： | DC1621A |
| 厂商： | Linear Technology |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO LTM8062 |
| 设计资源： | DC1621A Design Files |
| 标准包装： | 1 |
| 系列： | LTM®, uModule® |
| 主要目的： | 电源管理，电池充电器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | LTM8062 |
| 主要属性： | 2 芯锂离子电池 / 锂聚合物，7.2V 2A 输出 |
| 次要属性： | 9.75V ~ 32V 输入 |
| 已供物品： | 板 |
| 相关产品： | LTM8062EV#PBF-ND - IC BATTERY CHARGER TRACK 77-LGA LTM8062IV#PBF-ND - IC BATTERY CHARGER TRACK 77-LGA |
LTM8062/LTM8062A
32V IN , 2A μModule Power
Tracking Battery Chargers
Complete Battery Charger System
Input Supply Voltage Regulation Loop for Peak
Resistor Programmable Float Voltage Up to 14.4V
Wide Input Voltage Range: 4.95V to 32V
2A Charge Current
Accommodates Li-Ion/Polymer, LiFePO 4 , SLA
Integrated Input Reverse Voltage Protection
User Selectable Termination: C/10 or Termination
0.75% Float Voltage Reference Accuracy
9mm × 15mm × 4.32mm LGA Package
FEATURES
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Power Tracking in MPPT (Maximum Peak Power
Tracking) Solar Applications
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on the LTM8062 and 18.8V on the LTM8062A
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(40V Abs Max)
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Timer
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APPLICATIONS
DESCRIPTION
The LTM ? 8062/LTM8062A are complete 32V IN , 2A
μModule ? power tracking battery chargers. The LTM8062/
LTM8062A provide a constant-current/constant-voltage
charge characteristic, a 2A maximum charge current, and
employ a 3.3V float voltage feedback reference, so any
desired battery float voltage up to 14.4V for the LTM8062
and up to 18.8V for the LTM8062A can be programmed
with a resistor divider.
The LTM8062/LTM8062A employ an input voltage regula-
tion loop, which reduces charge current if the input volt-
age falls below a programmed level, set with a resistor
divider. When the LTM8062/LTM8062A are powered by a
solar panel, this input regulation loop is used to maintain
the panel at peak output power. The LTM8062/LTM8062A
also feature preconditioning trickle charge, bad battery
detection, a choice of termination schemes and automatic
restart.
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Industrial Handheld Instruments
12V to 24V Automotive and Heavy Equipment
Desktop Cradle Chargers
Solar Power Battery Charging
The LTM8062/LTM8062A are packaged in a thermally en-
hanced, compact (9mm × 15mm × 4.32mm) over-molded
land grid array (LGA) package suitable for automated
assembly by standard surface mount equipment. The
LTM8062/LTM8062A are RoHS compliant.
L , LT, LTC, LTM, Linear Technology, the Linear logo and μModule are registered trademarks of
Linear Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
2A LiFePO 4 μModule Battery Charger
2500
Charge Current vs Battery Voltage
V IN
6V TO 32V
V INA
V IN
LTM8062
BAT
BIAS
2000
NORMAL CHARGING
4.7μF
V INREG
RUN
TMR
CHRG
FAULT
ADJ
274k
1-CELL
LiFePO 4
(3.6V)
1500
1000
NTC
2.87M
GND
8062 TA01a
500
PRECONDITION
0
0
1
TERMINATION
2
3
4
BATTERY VOLTAGE (V)
8062 TA01b
8062fd
For more information www.linear.com/LTM8062
1
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