1
dc1645af
DEMO MANUAL
DC1645A-A/DC1645A-B/
DC1645A-C/DC1645A-D
DESCRIPTION
LTM8061-4.1/LTM8061-4.2/
LTM8061-8.2/LTM8061.4
32V, 2A µModule Li-Ion
Battery Charger
Demonstration circuits 1645A-A, 1645A-B, 1645A-C and
1645A-D feature the LTM8061, a 32V, 2A μModule
®
Li-Ion
battery charger. Operating from a 6.5V to 32V input source,
the 1645A-A and 1645A-B demo circuits charge single cell
Li-Ion batteries to fl oat voltages of 4.1V or 4.2V respectively.
The 1645A-C and 1645A-D demo circuits operate from a
12V to 32V input source, and charge dual cell Li-Ion bat-
tery packs to fl oat voltages of 8.2V or 8.4V. JP1 turns the
L
, LT, LTC, LTM, μModule, Linear Technology and the Linear logo are registered trademarks of
Linear Technology Corporation. All other trademarks are the property of their respective owners.
Table 1. Typical Secifications of the Demoboard (T
A
= 25°C)
Input Supply Range
6.5V to 32V (-A and -B), 12V to 32V (-C and -D)
Typical Output Current Limit for All Versions
2A
Float Voltage Accuracy
4.08V to 4.12V (-A), 4.18V to 4.22V (-B) 8.16V to -8.24V (-C), 8.36V to 8.44V (-D)
PERFORMANCE SUMMARY
converter on or off. JP2 allows for easy selection of C/10
or timer charge termination. The LTM8061 datasheet must
be read in conjunction with this demo manual for working
on or modifying the demo circuit 1645A.
Design fi les for this circuit board are available at
http://www.linear.com/demo
BOARD PHOTO