TKD SERIES - 50 WATT, 3/4 BRICK
DESCRIPTION
The TKD series of dual-output DC/DC converters provides
high power and full isolation in a low cost, single-board
design package. The TKD series provides highly reliable,
onboard conversion of telecom and datacom input voltages
to isolated low output voltages without the need for a
heatsink. The TKD series is ideally suited for Distributed
Power Architectures (DPA), telecommunications equipment, LAN/WAN, and data processing applications.
FEATURES
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TECHNICAL SPECIFICATIONS
Input
Parameter
Maximum
Unit
Voltage Range
48 nom.
Transient Voltage Withstand
36-75
VDC
100/100
V/ms
Turn-on Time
25
mS
Input Reflected Ripple Current
50
mApk-pk
34/30
Von/Voff
UVP Trip Range
Efficiency vs. Output
90.0%
Maximum
Unit
±1.5
% Vout
0.5
% Vout
0.5
% Vout
1
A
Pk Deviation
4
% Vout
Settling Time
500
µS
Output 1
2.50-3.47
V
Output 2 if Vout1 set to 3.3V
1.50-2.50
V
Output 2 if Vout1 set to 2.5V
1.50-2.00
V
Power Limit Threshold Range
110-150
% Pout rated
OVP Trip Range
115-140
% Vout
Setpoint Accuracy
Line Reg. Vin min. – Vin max., Iout
rated output 1
Load Reg. Iout min. – Iout max., Vin
rated output 1
Min. Output Current, each Output
Efficiency
Output
Parameter
Independent Dual Outputs
Low Cost Package
No Heatsink
Single-Board Design
Wide Trim Range for both Outputs
1500V Isolation
Industry Standard Footprint
Remote Shutdown
Flexible Output Power
80.0%
VIN=36V
70.0%
VIN=48V
60.0%
VIN=75V
50.0%
0.80 1.60 2.40 3.20 4.00 4.80 5.60 6.40 7.20 8.00
Dynamic Reg., Loadstep
Iout1 = Iout2 (A)
Voltage Trim Range
General
Parameter
Maximum
Unit
200
KHz
Positive
On>3.5/Off<1.8
V
Negative (optional)
On<1.8/Off>3.5
V
Isolation Input-Output
1500
VDC
Temp. Coefficient
0.03
%/ C
Switching Frequency
Remote ON/OFF
°
Board Temp
Notes
Operating Range
-40 to +100
°
Storage Range
-40 to +125
°
105 to 115
°
Thermal Shutdown Range
Specifications typically at 25°C, nominal line, and full load unless otherwise
stated.
Humidity max, Non-Condensing
Safety
Specifications subject to change without notice.
Weight (approx)
REV. 08/01
1
95
C
C
C
%
Pending
1.5
Oz.
TKD SERIES - 50 WATT, 3/4 BRICK
MODELS - (See the last page of section for options.)
MODEL
TKD12ZED-T
NOTES:
INPUT VOLTAGE
(VOLTS)
INPUT VOLTAGE
RANGE (VOLTS)
MAXIMUM INPUT
CURRENT (AMPS)*
OUTPUT
VOLTAGE (VOLTS)
RATED OUTPUT
CURRENT (AMPS)**
48
36-75
2.0
3.3/2.5
12/12
RIPPLE & NOISE
pk-pk (mV)
TYPICAL
EFFICIENCY***
100/100
84%
* Maximum input current at minimum input voltage, maximum rated output power.
** Maximum current on either output not to exceed Iout rated and total output power not to exceed 50 Watts.
*** At nominal Vin, output current equal to 8.0 Amps on either output.
MECHANICAL DRAWING
3.90
(99.1)
1
+Vin
2
-Vin
3
On/Off
4
+Vout2
5
+Vout2
6
Common
7
Common
8
+Vout1
9
+Vout1
10
Trim 2
11
Trim 1
1.0 (25.40)
1
2
3
2.36 0.8 (20.32)
(60.0) 0.6 (15.24)
Bottom View
1.40 (35.56)
1.20 (30.48)
1.00 (25.40)
0.80 (20.32)
0.60 (15.24)
0.40 (10.16)
0.20 (5.08)
0
0.385 (9.80)
0
0.10 (2.50)
Function
3.70 (93.98)
PIN
4
5
6
7
8
9
10
11
0.40 (1.02)
0.18 (4.60)
0.45 (11.40)
Side View
Units: inches (mm)
2
OPTIONS
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!70;5E-3 D !70;5E &$799BC-#'8 D &$799BC-# ! 7007) NUCLEAR AND MEDICAL APPLICATIONS Power-One products are not authorized for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems without the express written consent of the President of Power-One, Inc.
TECHNICAL REVISIONS The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
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