Datasheet

For more information, please visit the product page.
rev.
date
06/2009
ue
output
voltage
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
18-36VDC
36-72VDC
36-72VDC
36-72VDC
36-72VDC
36-72VDC
36-72VDC
36-72VDC
36-72VDC
36-72VDC
36-72VDC
36-72VDC
3.3VDC
5VDC
12VDC
15VDC
±5VDC
±12VDC
±15VDC
3.3VDC/±12VDC
5VDC/±12VDC
3.3VDC/±15VDC
5VDC/±15VDC
3.3VDC
5VDC
12VDC
15VDC
±5VDC
±12VDC
±15VDC
3.3VDC/±12VDC
5VDC/±12VDC
3.3VDC/±15VDC
5VDC/±15VDC
nt
is
output
current
(max)
6.0A
5.0A
2.0A
1.6A
2.5A
1.0A
0.8A
3.5A/0.35A
3.5A/0.35A
3.5A/0.28A
3.5A/0.25A
6.0A
5.0A
2.0A
1.6A
2.5A
1.0A
0.8A
3.5A/0.35A
3.5A/0.35A
3.5A/0.28A
3.5A/0.25A
in
input
voltage
co
output
power
(max)
19.8W
25.0W
24.0W
24.0W
25.0W
24.0W
24.0W
19.95W
25.9W
19.95W
25.0W
19.8W
25.0W
24.0W
24.0W
25.0W
24.0W
24.0W
19.95W
25.9W
19.95W
25.0W
d
features
·industry standard pin out
·wide 2:1 input range
·fully isolated
·output voltage trimmable
·output on/off control
·over-current protection
·over-voltage protection
·six-sided EMI shielding
·constant switching frequency
·high efficiency
·compact size 2.0”x2.0”x0.4”
·-40°C~85°C models available
·3 year warranty
PTK25-D24-S3
PTK25-D24-S5
PTK25-D24-S12
PTK25-D24-S15
PTK25-D24-D5
PTK25-D24-D12
PTK25-D24-D15
PTK25-D24-T312
PTK25-D24-T512
PTK25-D24-T315
PTK25-D24-T515
PTK25-D48-S3
PTK25-D48-S5
PTK25-D48-S12
PTK25-D48-S15
PTK25-D48-D5
PTK25-D48-D12
PTK25-D48-D15
PTK25-D48-T312
PTK25-D48-T512
PTK25-D48-T315
PTK25-D48-T515
1 of 4
DESCRIPTION: dc-dc converter
PART NUMBER: PTK25
MODEL 1
page
ripple & noise 2
mV P-P
100
100
120
150
75/75
120/120
150/150
75/120/120
75/120/120
75/150/150
75/150/150
100
100
120
150
75/75
120/120
150/150
75/120/120
75/120/120
75/150/150
75/150/150
efficiency
(typ.)
80%
85%
89%
89%
84%
88%
87%
83%
84%
83%
84%
81%
85%
89%
89%
84%
88%
87%
83%
84%
83%
84%
D
NOTE: 1. All models are also available in an extended temperature range of -40°C~85°C. For these models, append “M” to the model number, e.g.
PTK25-Q48-S5M.
2. Ripple & noise measured with a 20MHz bandwidth, off a 10uF electrolytic and a 0.1uF ceramic cap in parallel at the ouptut.
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
For more information, please visit the product page.
rev.
page
2 of 4
date
06/2009
DESCRIPTION: dc-dc converter
PART NUMBER: PTK25
INPUT
conditions/description
output turn-on3
output turn-off
switching frequency
constant
NOTE: 3 output defaults to “on” when there is no connection to the “CNT” pin.
nom
24
48
(open)
(short)
300
max
36
72
5.5V
0.8V
units
VDC
VDC
KHz
ue
remote on/off control
min
18
36
2.5V
0V
d
parameter
input voltage range
OUTPUT
conditions/description
min
nom
max
units
with external trim resistors
-5%
+5%
single output
-2%
+2%
dual output
-3%
+3%
line regulation
single output models
-0.25%
+0.25%
(low line to high line)
dual output models
-2.5%
+2.5%
triple: main output (Vout)
-0.25%
+0.25%
auxillary outputs (+Vaux / -Vaux)
-5%
+5%
load regulation
single output models- no load to full load
-0.25%
+0.25%
dual output models- balanced loads
-2.5%
+2.5%
triple: main output (Vout)
-0.25%
+0.25%
auxillary outputs (+Vaux / -Vaux)- with 10%
-5%
+5%
load on Vout and balanced loads on+Vaux and -Vaux
minimum load
converters will not be damaged if loading conditions are less than minimum specified loads,
but regulation specs may not be met4
ripple and noise
see chart
NOTE: 4 single output: no min. load required, dual: 10%, triple: balanced loads
PROTECTION
nt
in
parameter
output trim range
set point accuracy
GENERAL
co
parameter
conditions/description
min
over-current
continuous auto recovery 5
105%
over-voltage
internally zener clamped 5
110%
NOTE: 5 continuous operation in a protected state may compromise long-term reliability.
conditions/description
min
nom
typical at full load
77%
input/case, input/output, output/case
500
at 500 VDC
100M
approved to UL60950(E222889), CSA C22.2 No. 60950, TUV EN60950
Zn
94 V-0
80
(2.82)
MIL-HDBK-217F
470k
regular models - see derating curve.
-20
extended temperature models
-40
-40
operating (non-condensing)
5%
not intended for aqueous wash
is
parameter
efficiency
isolation voltage
insulation resistance
agency standards
case material
material flammability
weight
D
MTBF
operating temperature
storage temperature
humidity
washability
nom
max
135%
140%
units
max
83%
units
VAC
Ohms
(single output only)
grams
(ounces)
hours
+71
°C
+85
°C
+105
°C
95%
RH
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
For more information, please visit the product page.
rev.
page
3 of 4
date
06/2009
DESCRIPTION: dc-dc converter
PART NUMBER: PTK25
DIMENSIONS (mm)
NOTES
1. All dimensions are in inches and(mm).
nt
0.3±0.5
(7.5)
in
ue
d
2. Weight : 75g or less
PCB hole
Layout
* Mounting
top view
is
co
PIN DEFINITIONS
D
DERATING CURVES
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
For more information, please visit the product page.
rev.
page
4 of 4
date
06/2009
DESCRIPTION: dc-dc converter
PART NUMBER: PTK25
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
d
optionally be trimmed to a different value (+/- 10%) with external resistors and/or potentiometer as shown below.
+Vo
FIGURE 1. TRIMMING WITH
Trim
EXTERNAL POTENTIOMETER
-Vin
-Vo
10KW
Trimpot
ue
+Vin
R load
To trim the output voltage with fixed resistors, the output voltage can be calculated as follows.
+Vo
+Vin
Trim
R load
-Vo
nt
R trim-up
-Vin
in
+Vin
-Vin
+Vo
R trim-down
Trim
R load
-Vo
Trim-Up
Trim-Down
FIGURE 2: TRIM-UP VOLTAGE SETUP
FIGURE 3: TRIM-DOWN VOLTAGE SETUP
co
Rtrim_up =
Vr · R1 · R2
R2 · (Vo - Vr) - Vr · R1
Rtrim_down =
(Vo - Vr) · R1 · R2
Vr · R1 - (Vo - Vr) · R2
The value of R trim-up is defined as:
The value of R trim-down is defined as:
Where: R trim-up is the external resistor in K Ω . V o is the
Where: R trim-down is the external resistor in K Ω . V o is the
desired output voltage. R 1 and R 2 and V r are internal to
desired output voltage. R 1 and R 2 and V r are internal to
the unit and are defined in Table 1. For example to trim down
the PTK25-D5-D12 down by 5% to 22.8 V, R trim-down is calculated
as follows:
as follows:
is
the unit and are defined in Table 1. For example to trim up
the PTK25-D5-D12 up by 5% to 25.2 V, R trim-up is calculated
D
Vo = 25.2 / R1 = 21 KΩ / R2 = 2.43 KΩ / Vr = 2.5
Rtrim_up =
2.5 · 21 · 2.43
2.43 · (25.2 - 2.5) - 2.5 · 21
Table 1
= 47.94 KΩ
Vo = 22.8 / R1 = 21 KΩ / R2 = 2.43 KΩ / Vr = 2.5
Rtrim_down =
(22.8 - 2.5) · 21 · 2.43
2.5 - 2.1 (22.8 - 2.5) · 2.43
R1 (KΩ) R2 (KΩ) Vr (V)
Model
1.13
0.68
1.25
PTK25-DXX-S3.3
2.43
2.43
2.5
PTK25-DXX-S5
PTK25-DXX-S12
9.31
2.43
2.5
PTK25-DXX-S15
12.1
2.4
2.5
PTK25-DXX-D5
7.32
2.43
2.5
PTK25-DXX-D12
21
2.43
2.5
PTK25-DXX-D15
26.7
2.43
2.5
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
= 326.68 KΩ
Similar pages