D12S72C Datasheet, PDF (6/12 Pages) Delta Electronics, Inc. – Non-Isolated, Power Block DC/DC Power Modules: 7.0~13.2Vin, 0.8V~1.8V/40Aout

TEST CONFIGURATIONS
Figure 17: Peak-peak output ripple & noise and startup
transient measurement test setup
Note: 6pcs 560µF OSCON, 4pcs 47µF 1210 MLCC and
20pcs 10uF 1206 MLCC capacitor in the module output.
Scope measurement should be made by using a BNC
connector.
DISTRIBUTION LOSSES
II
SUPPLY
Io
LOAD
CONTACT RESISTANCE
Figure 18: Output voltage and efficiency measurement test
setup
Note: All measurements are taken at the module
terminals. When the module is not soldered (via socket),
place Kelvin connections at module terminals to avoid
measurement errors due to contact resistance.
η = (^{Vo × Io}) ×100 %
Vi × Ii
Cin
Cout
1500uF/16V * 2pcs
Aluminum
Input
SCOPE
Vo
10uF/16V * 2pcs
MLCC
Figure 19: Peak-peak Input ripple & noise measurement test
setup
Note: 2pcs 1,500µF Aluminum and 2pcs 10µF MLCC in
the module input. Scope measurement should be made
by using a BNC connector.
DESIGN CONSIDERATIONS
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the module. An
input capacitance must be placed close to the modules
input pins to filter ripple current and ensure module
stability in the presence of inductive traces that supply
the input voltage to the module.
Safety Considerations
For safety-agency approval the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standards.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements. The power module
has extra-low voltage (ELV) outputs when all inputs are
ELV.
The input to these units is to be provided with a
maximum 15A time-delay fuse in the ungrounded lead.
FEATURES DESCRIPTIONS
Over-Current Protection
To provide protection in an output over load fault
condition, the unit is equipped with internal over-current
protection. When the over-current protection is
triggered, the unit will be shutdown and restart by input
or OUTEN on/off. The units operate normally once the
fault condition is removed.
Over-Temperature Protection
To provide additional over-temperature protection in a
fault condition, the unit is equipped with a thermal
shutdown circuit. The shutdown circuit engages when the
temperature of monitored component exceeds
approximately 121 . It can be set with latching mode or
auto-restart mode by the external digital IC. The shutdown
unit will restart by input or OUTEN on/off while the
temperature lower than 113 (latching mode), or will
auto-restart while the temperature lower than 113
(auto-restart mode).
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