User Manual – 16 V and 48 V Modules
– Doc. No. 1008491.13
© 2014 Maxwell Technologies, Inc.
Page 7
f
TH
ESR
d
R
R
I
T
2
where
:
I
=
RMS current (amps)
R
ESR
=
equivalent series resistance
,
R
DC
(ohms)
R
TH
=
thermal resistance (
o
C/W)
d
f
=
duty cycle fraction
The
T value calculated above plus ambient temperature should remain below the specified
maximum operating temperature for the module (please refer to the module datasheet) as
measured by the thermistor output. If active cooling methods are employed, it is possible to
operate at higher currents or duty cycles than if only passive cooling is utilized.
4.
Operation
The module should only be operated within specified voltage and temperature ratings. Determine
whether current limiting is necessary based on the current ratings of attached components.
Observe polarity indicated on module. Do not reverse polarity.
5.
Safety
DANGER
HIGH VOLTAGE HAZARD
Never touch the power terminals as the module can be charged and
cause
fatal electrical shocks
. Always verify that the module is fully
discharged before manipulating the module. Refer to the instructions
below for the manual discharge procedure.
Do not operate unit above the specified voltage.
Do not operate unit above the specified temperature rating.
Do not touch terminals with conductors while charged. Serious burns,
shock, or material fusing may occur.
Protect surrounding electrical components from incidental contact.
Provide sufficient electrical isolation when working above 50 V DC.
Prior to installation on or removal from the system, it is mandatory to
fully discharge the module to guarantee the safety of all personnel.
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