PKY4716PI Ericsson Power Modules, PKY4716PI Datasheet - Page 7

• Manufacturer Part Number: PKY4716PI
• Manufacturer: Ericsson Power Modules
• Type: Step Downr

Specifications of PKY4716PI

• Output Current: 25 A
• Output Voltage: 28 V
• Input Voltage: 36 to 75 V
• Number Of Outputs: 1
• Output Power: 700 W
• Switching Regulator: Yes

28V, 21.5A/600W Typical Characteristics
Start-up
Start-up enabled by connecting V
T
I
Output Ripple & Noise
Output voltage ripple at:
T
I
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
Output Voltage Adjust Downwards, Decrease:
Example: Increase 4% =>V
Prepared (also subject responsible if other)
ESECZHW
Approved
SEC/D (Julia You)
PKY 4000 PI series
DC/DC converters, Input 36-75 V, Output up to 25 A/700 W
10
O
O
R
R
P1
P1
= 21.5 A resistive load.
= 21.5 A resistive load.
adj
adj
⎡
⎢
⎣
= +25°C, V
= +25°C, V
28
=
=
2 .
10 o
10
(
100
2
⎡
⎢
⎣
( )
V
5 .
100
Δ
×
+
%
I
I
(
4
= 53 V
= 53 V
4
100
2
−
)
5 .
−
2
×
+
100
Δ
Δ
kΩ
%
%
+
4
)
2
−
×
100
4
⎤
⎥
⎦
out
+
I
kΩ
Δ
at:
2
= 29.33 Vdc
%
×
Δ
%
=
⎤
⎥
⎦
2663 kΩ
kΩ
Top trace: output voltage 10 V/div.
Bottom trace: input voltage 20 V/div.
Time scale: 5 ms/div.
Trace: output voltage 100 mV/div.
Time scale: 2 us/div.
Checked
ECHWANG
PRODUCT SPECIFICATION
No.
2/1301-BMR 638/1 Uen
Date
2008-10-9
Shut-down
Shut-down enabled by disconnecting V
T
I
Output Load Transient Response
Output voltage response to load current step-
change 5.375-16.125-5.375A at: 1 A/us.
T
Active adjust
The output voltage may be adjusted using a current applied to the V
pin referred to -Sense. This current is calculated by using the following
equations:
Output Voltage Adjust Upwards, Increase:
Output Voltage Adjust Downwards, decrease:
O
P1
P1
+
−
= 21.5 A
=+25°C, V
= +25°C, V
1
1
%
%
V
V
I
0
0
= 53V.
I
= 53 V,
=
=
2,5
2,5
x
x
Technical Specifi cation
EN/LZT 146 380 R2A Oct 2008
© Ericsson Power Modules AB
Rev
C
10
10
-6
-6
I
A
A
at:
into
out
Reference
Top trace: output voltage 10 V/div.
Bottom trace: input voltage 20 V/div.
Time scale: 50 ms/div.
Trace: output voltage 0.5 V/div.
Time scale: 0.2 ms/div.
of
adjust
adjust
pin
PKY 4616 PI
pin
4 (10)
7
adj