PKU5310ESI Ericsson Power Modules, PKU5310ESI Datasheet - Page 19

• Manufacturer Part Number: PKU5310ESI
• Description: DC/DC Converters & Regulators 33W 3.3V OUT 10A 33.02x22.86x7.50 mm
• Manufacturer: Ericsson Power Modules
• Series: PKU-Er

Specifications of PKU5310ESI

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

E
Operating information continued
Output Voltage Adjust (V
The products have an Output Voltage Adjust pin (V
pin can be used to adjust the output voltage above or below
Output voltage initial setting.
When increasing the output voltage, the voltage at the output
pins must be kept below the threshold of the over voltage
protection, (OVP) to prevent the product from entering OVP.
At increased output voltages the maximum power rating of the
product remains the same, and the max output current must
be decreased correspondingly.
To increase the voltage the resistor should be connected
between the V
Output voltage adjust function is according to information
given under the Output section for the respective product.
To decrease the output voltage, the resistor should be
connected between the V
Over Temperature Protection (OTP)
The converters are protected from thermal overload by an
internal over temperature shutdown circuit.
When T
exceeds 105°C the converter will shut down.
The DC/DC converter will make continuous attempts to start
up (non-latching mode) and resume normal operation
automatically when the hot-spot temperature has dropped
10°C below the temperature threshold.
Over Voltage Protection (OVP)
The converters have output over voltage protection that will
prevent output voltage to exceed the specified value in
technical specification.
The converter will limit the outputvoltage to the maximum
level. Converters will resume normal operation automatically
after removal of the over voltage condition.
Prepared (also subject responsible if other)
MICOSPE
Approved
EAB/FJB/GMF (Natalie Johansson)
PKU 5000E series
DC/DC converters, Input 18-72 V, Output up to 10 A/35 W
P1
as defined in thermal consideration section reach
adj
pin and +Out pin. The resistor value of the
adj
adj
pin and –Out pin.
)
Checked
MICMALE
adj
). This
Ericsson Internal
PRODUCT SPECIFICATION
No.
3/1301-BMR 6600 Uen
Date
2009-02-20
Over Current Protection (OCP)
The converters include current limiting circuitry for protection
at continuous overload.
The output voltage will decrease towards zero for output
currents in excess of max output current (max I
After a time period exceeding 10 ms in OCP converters will
enter hiccupmode to reduce average output power.
During short-circuit condition module temperature will increase
rapidly and OTP function may be activated.
Module will not resume from hiccup shutdown period unless
the temperature drops below the OTP re-activation
temperature.
The converter will resume normal operation after removal of
the overload. The load distribution should be designed for the
maximum output short circuit current specified.
Pre-bias Start-up
The product has a Pre-bias start up functionality and will not
sink current during start up or RC-off if a pre-bias source with
less than 75% of V
Precaution must be taken that reverse current might be
present if V
discharge external capacitors.
NB! Feeding V
might without V
i
is disabled. Without V
o
i
from external power supply for test purpose
cause high reverse current.
Technical Specification
EN/LZT 146 391 R4B May 2009
© Ericsson AB
o
Rev
A
is present at the output terminals.
Reference
i
a small current will
O
).
3 (5)
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