1
dc1559af
DEMO MANUAL DC1559A
DESCRIPTION
LTM8046
3.1V
IN
to 32V
IN
, 2kV Isolated
DC/DC µModule Converter
The demo circuit 1559A features the
LTM8046,
a 2kVAC,
2.5W isolated flyback μModule
®
converter. The demo
circuit is designed for a 5V output from a 3.2V to 26V
input. The typical current capability of the 5V output varies
with input voltage from about 150mA at V
IN
= 4V to about
550mA at V
IN
= 26V. R2 provides the necessary minimum
load current to keep the V
OUT
in regulation throughout the
entire input voltage range. Please see the Typical Perfor-
mance Characteristics curves in the LTM8046 data sheet
to determine the minimum load current for other input/
output configurations.
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.
PERFORMANCE SUMMARY
The LTM8046 data sheet gives complete description of
the device, operation and application information. The data
sheet must be read in conjunction with this demo manual
prior to working on or modifying demo circuit 1559A.
Design files for this circuit board are available at
http://www.linear.com/demo
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
IN
Input Supply Range
3.2
26
V
V
OUT
Output Voltage
4.75
5
5.25
V
V
OUT(AC)
Output Ripple
V
IN
= 12V, I
OUT
= 300mA
50
mV
Specifications are at T
A
= 25°C
