Linear Technology LTM8062EV Demo Board, 32V, 2A µModule Li-Ion Battery Charger with MPPT DC1621A DC1621A Datenbogen
Produktcode
DC1621A
LTM8062/LTM8062A
1
8062fd
Typical applicaTion
FeaTures
DescripTion
32V
IN
, 2A µModule Power
Tracking Battery Chargers
The
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-
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.
The LTM8062/LTM8062A are packaged in a thermally en-
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.
2A LiFePO
4
µModule Battery Charger
applicaTions
n
Complete Battery Charger System
n
Input Supply Voltage Regulation Loop for Peak
Power Tracking in MPPT (Maximum Peak Power
Tracking) Solar Applications
n
Resistor Programmable Float Voltage Up to 14.4V
on the LTM8062 and 18.8V on the LTM8062A
n
Wide Input Voltage Range: 4.95V to 32V
(40V Abs Max)
n
2A Charge Current
n
Accommodates Li-Ion/Polymer, LiFePO
4
, SLA
n
Integrated Input Reverse Voltage Protection
n
User Selectable Termination: C/10 or Termination
Timer
n
0.75% Float Voltage Reference Accuracy
n
9mm
× 15mm × 4.32mm LGA Package
n
Industrial Handheld Instruments
n
12V to 24V Automotive and Heavy Equipment
n
Desktop Cradle Chargers
n
Solar Power Battery Charging
Charge Current vs Battery Voltage
8062 TA01a
LTM8062
GND
V
INA
V
IN
V
INREG
RUN
TMR
NTC
V
IN
6V TO 32V
BAT
BIAS
CHRG
FAULT
ADJ
4.7µF
274k
2.87M
1-CELL
LiFePO
4
(3.6V)
BATTERY VOLTAGE (V)
0
0
CHARGING CURRENT (mA)
2
2500
8062 TA01b
1
3
4
1000
500
1500
2000
NORMAL CHARGING
PRECONDITION
TERMINATION