PTK15-Q24-S12 CUI Inc, PTK15-Q24-S12 Datasheet - Page 4

• Manufacturer Part Number: PTK15-Q24-S12
• Description: CONVERTER DC/DC 12V OUT 15 WATT
• Manufacturer: CUI Inc
• Series: V-Infinity PTK15r
• Type: Isolatedr

Specifications of PTK15-Q24-S12

• Output: 12V
• Number Of Outputs: 1
• Power (watts): 15W
• Mounting Type: Through Hole
• Voltage - Input: 10 ~ 36V
• Package / Case: 8-DIP Module (7 Leads)
• 1st Output: 12 VDC @ 1.25A
• Size / Dimension: 2.00" L x 2.00" W x 0.40" H (50.8mm x 50.8mm x 10.2mm)
• Power (watts) - Rated: 15W
• Operating Temperature: -20°C ~ 71°C
• Efficiency: 86%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Other names: 102-1078

PART NUMBER: PTK15
APPLICATION NOTES
1. OUTPUT TRIMMING
The output voltages are preset to nominal values as indicated by the models table at the factory. If desired, the output voltage may
optionally be trimmed to a different value (±5%) with external resistors and/or potentiometer as shown below.
To trim the output voltage with fixed resistors, the output voltage can be calculated as follows.
the PTK15-D5-D12 up by 5% to 25.2 V, R
the unit and are defined in Table 1. For example to trim up
desired output voltage. R
Where: R
R
20050 SW 112
trim_up
V
o
R
= 25.2 / R
FIGURE 2: TRIM-UP VOLTAGE SETUP
trim_up
trim-up
FIGURE 1. TRIMMING WITH
EXTERNAL POTENTIOMETER
The value of R
=
+Vin
-Vin
is the external resistor in K Ω . V
2.43 · (25.2 - 2.5) - 2.5 · 21
1
th
=
= 21 KΩ / R
Ave. Tualatin, Oregon 97062
Trim-Up
2.5 · 21 · 2.43
as follows:
Table 1
R
trim-up
2
1
and R
Trim
· (V
+Vo
-Vo
V
2
is defined as:
o
r
= 2.43 KΩ / V
2
· R
- V
and V
1
r
) - V
· R
trim-up
Model
PTK15-QXX-S3.3
PTK15-QXX-S5
PTK15-QXX-S12
PTK15-QXX-S15
PTK15-QXX-D5
PTK15-QXX-D12
PTK15-QXX-D15
r
2
are internal to
R trim-up
r
=
· R
is calculated
r
47.94 KΩ
+Vin
-Vin
= 2.5
1
o
is the
phone
phone [phone] fax
R load
R1 (KΩ)
1.13
2.43
9.31
12.7
7.32
26.7
Trim
+Vo
21
DESCRIPTION: dc-dc converter
-Vo
the PTK15-D5-D12 down by 5% to 22.8 V, R
the unit and are defined in Table 1. For example to trim down
R
Where: R
desired output voltage. R
R2 (KΩ)
trim_down
0.68
2.43
2.43
2.43
2.43
2.43
2.4
V
R
o
FIGURE 3: TRIM-DOWN VOLTAGE SETUP
trim_down
= 22.8 / R
10K
Trimpot
trim-down
The value of R
fax [phone]
Vr (V)
1.25
=
2.5
2.5
2.5
2.5
2.5
2.5
+Vin
-Vin
2.5 - 2.1 (22.8 - 2.5) · 2.43
is the external resistor in K Ω . V
1
(22.8 - 2.5) · 21 · 2.43
= 21 KΩ / R
Trim-Down
=
R load
as follows:
trim-down
V
1
Trim
r
+Vo
(V
and R
-Vo
· R
o
2
1
- V
= 2.43 KΩ / V
is defined as:
2
www.v-infinity.com
- (V
and V
r
) · R
o
rev.
page
date
- V
trim-down
r
1
R trim-down
are internal to
· R
r
=
) · R
r
2
326.68 KΩ
06/2010
= 2.5
4 of 4
is calculated
2
o
is the
R load