PMN8118UWP Ericsson Power Modules, PMN8118UWP Datasheet - Page 36

• Manufacturer Part Number: PMN8118UWP
• Description: DC/DC Converters & Regulators 0.7-3.6V 30A Non-Iso Input 5.5-14V 108W
• Manufacturer: Ericsson Power Modules
• Series: PMNr

Specifications of PMN8118UWP

• Output Power: 108 W
• Input Voltage Range: 5.5 V to 14 V
• Number Of Outputs: 1
• Output Voltage (channel 1): 0.7 V to 3.6 V
• Output Current (channel 1): 30 A
• Output Type: POLA Non-Isolated Regulator
• Product: Non-Isolated / POL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

E
to parallel the regulators without using external current
sharing circuits.
Remote Sense
The DC/DC regulators have remote sense that can be used
to compensate for voltage drops between the output and
the point of load. The sense traces should be located close
to the PCB ground layer to reduce noise susceptibility. The
remote sense circuitry will compensate for up to 10%
voltage drop between output pins and the point of load.
If the remote sense is not needed +Sense should be
connected to +Out and -Sense should be connected to -
Out.
Over Temperature Protection (OTP)
The regulators are protected from thermal overload by an
internal over temperature shutdown circuit.
When T
exceeds the OTP threshold, the regulator will shut down.
The DC/DC regulator will make continuous attempts to start
up (non-latching mode) and resume normal operation
automatically when the temperature has dropped >10°C
below the temperature threshold.
Over Current Protection (OCP)
The regulators 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
regulator will resume normal operation after removal of the
overload. The load distribution should be designed for the
maximum output short circuit current specified.
Soft-start Power Up
From the moment a valid input voltage is applied, the soft-
start control introduces a short time-delay (typically 5-10
ms) before allowing the output voltage to rise.
The initial rise in input current when the input voltage first
starts to rise is the charge current drawn by the input
Prepared (also subject responsible if other)
EYIPYAN
Approved
SEC/D (Julia You)
PMN 8000 series PoL Regulator
Input 5.5 - 14 V, Output up to 30 A / 108 W
ref
as defined in thermal consideration section
Checked
EQUENXU
O
). The
Ericsson Internal
PRODUCT SPECIFICATION
No.
3/1301-BMR656 8118 Uen
Date
2007-7-9
capacitors. Power-up is complete within 15 ms.
Auto Track™ Function
Auto Track
circuitry required to make the output voltage from each
module power up and power down in sequence. The
sequencing of two or more supply voltages during power
up is a common requirement for complex mixed-signal
applications, that use dual-voltage VLSI ICs such as DSPs,
micro-processors and ASICs.
Adjustable Undervoltage Lockout
The regulators incorporate an input undervoltage lockout
(UVLO). The UVLO feature prevents the operation of the
module until there is a sufficient input voltage to produce a
valid output voltage. This enables the module to provide a
clean, monotonic powerup for the load circuit and also limit
the magnitude of current drawn from regulator’s input
source during the power-up sequence.
The UVLO characteristic is defined by the ON threshold
(V
overridden, and the moudule does not produce an output.
The hysterisis voltage, which is the difference oscillations,
which can occur if the input voltage drops slightly when the
modules begins to draw current from the input source.
The UVLO feature of the PMN 8118UW P module allows for
limited adjustment of the ON threshold voltage. The
adjustment is made via the Inhibit/UVLO Prog control pin
(Pin 1) using a single resistor (see figure below). When pin
1 is left open, the ON threshold voltage is intermally set to
its default value. The ON threshold has a nominal voltage of
5.0 V and a hysterisis of 900 mV. This ensures that the
module produces a regulated output when the minimum
input voltage is applied. The ON threshold might need to
be increased if the module is powered from a tightly
regulated 12 V bus. This allows the ON threshold voltage to
be set for a specified input voltage. Adjusting the threshold
voltage prevents the module from operating if the input
THD
) voltage. Below the ON threshold, the Inhibit control is
TM
was designed to simplify the amount of
Technical Specification
EN/LZT 146 387 R1B December 2009
© Ericsson AB
Rev
B
Reference
4 (12)
36