PKR2113APIA Ericsson Power Modules, PKR2113APIA Datasheet - Page 18

• Manufacturer Part Number: PKR2113APIA
• Description: Module DC-DC 1-OUT 12V 1A 12W 18-Pin
• Manufacturer: Ericsson Power Modules
• Type: Step Downr

Specifications of PKR2113APIA

• Output Current: 1 A
• Output Voltage: 12 V
• Input Voltage: 18 to 36 V
• Number Of Outputs: 1
• Output Power: 12 W

Operating information
Input Voltage
The input voltage range 18… 36 Vdc.
At input voltages exceeding 36 V, the power loss will be
higher than at normal input voltage and T
absolute max +95°C. The absolute maximum continuous
input voltage is 36 Vdc.
Turn-off Input Voltage
The converters monitor the input voltage and will turn on and
turn off at predetermined levels. The minimum hysteresis
between turn on and turn off input voltage is 0.6V.
To increase V
11 and 18. The resistance is given by the following equation:
R
To decrease V
10 and 11. The resistance is given by the following equation:
R
V
V
Remote Control (RC)
The maximum required sink current is 1 mA. When the RC pin
is left open, the voltage generated on the RC pin is
<16 V. To ensure that the converter stays off the voltage must
be below 1.0 V.
Input and Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the DC/DC converter. It is
important that the input source has low characteristic
impedance. The converters are designed for stable operation
without external capacitors connected to the input or output.
The performance in some applications can be enhanced by
addition of external capacitance as described under External
Decoupling Capacitors. If the input voltage source contains
significant inductance, the addition of a 10 μF capacitor
across the input of the converter will ensure stable operation.
Prepared (also subject responsible if other)
ESKEVIN
Approved
SEC/D (Julia You)
PKR 2000A series
DC/DC converters, Input 18-36 V, Output up to 2 A/15 W
Variants/Parameters
off
on
set
set
(up) = (X - V
(down) = 22(V
is the adjusted turn-off input voltage and is determined by
- V
PKR2610A
PKR2111A
PKR2113A
PKR2221A
off
= 0.8V (Typical value).
Ion
Ion
on
a resistor should be connected between pin
)/(V
a resistor should be connected between pin
on
- Y)/(V
on
- V
Ion
Ion
17.1
17.3
17.4
V
The products are fitted with a
remote control function referenced
to the primary negative input
connection (- In), and have positive
logic. The RC function allows the
converter to be turned on/off by an
external device like a
semiconductor or mechanical
switch.
) kΩ
ion
- V
on
) kΩ
857
857
857
X
ref
must be limited to
Checked
EZYPING
15.2
15.2
15.2
Y
PRODUCT SPECIFICATION
No.
3/1301-BMR 640 1211+ Uen
Date
2007-8-20
The capacitor is not required when powering the DC/DC
converter from an input source with an inductance below 10
μH.
External Decoupling Capacitors
When powering loads with significant dynamic current
requirements, the voltage regulation at the point of load can
be improved by addition of decoupling capacitors at the load.
The most effective technique is to locate low ESR ceramic
and electrolytic capacitors as close to the load as possible by
using several parallel capacitors to lower the effective ESR.
The ceramic capacitors will handle high-frequency dynamic
load changes while the electrolytic capacitors are used to
handle low frequency dynamic load changes. Ceramic
capacitors will also reduce any high frequency noise at the
load.
It is equally important to use low resistance and low
inductance PCB layouts and cabling.
External decoupling capacitors will become part of the
control loop of the DC/DC converter and may affect the
stability margins. As a “rule of thumb”, 100 μF/A of output
current can be added without any additional analysis.
The recommended absolute maximum value of output
capacitance is 10 000 μF. For further information please
contact your local Ericsson Power Modules representative.
Output Voltage Adjust (V
All converters have an Output Voltage Adjust pin (V
pin can be used to adjust the output voltage above or below
Output voltage initial setting.
At increased output voltages the maximum power rating of
the converter remains the same, and the max output current
must be decreased correspondingly.
To increase the voltage the resistor should be connected
between the V
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
adj
pin and -IN. The resistor value of the Output
Technical Specifi cation
EN/LZT 146 352 R2C September 2007
© Ericsson Power Modules AB
Rev
B
adj
adj
pin and NOR pin.
)
Reference
adj
). This
2 (5)
18