48D15.350TC [ETC]
Analog IC ; 模拟IC\n
| 型号： | 48D15.350TC |
| 厂家： | 
ETC |
| 描述： | Analog IC
|
| 文件： | 总4页 (文件大小：73K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
10 Watt TC Dual Series DC/DC Converters
Description
Features
!
These converters provide low noise bipolar outputs from a
wide range of input voltages. The converters’ small 2.02" x
1.62" size makes them ideal for telecommunications,
instrumentation or industrial control applications.
3:1 Extra Wide Input Voltage Range, 20-60 VDC
!
Low Noise, Highly Regulated Dual Outputs
!
Efficiency > 72% for All Line Conditions
The dual outputs are cross regulated with a high loop gain
current mode control method that provides good regulation
with a true, high efficiency switching DC/DC topology. The
large amount of loop gain insures excellent input ripple
rejection and line transient response.
!
No Derating to 80°C Case Temperature
!
Six-sided Shielded Low Thermal Gradient
Copper Case
!
700 VDC Minimum Input to Output Isolation
Also included is a logic (open collector TTL / CMOS
compatible) shutdown pin to control converter operation.
!
Overvoltage Protected Input and Outputs
!
Pulse-by-pulse Digital Current Limiting
The modules in the TC Dual Series are protected from
output shorts by a high speed, pulse-by-pulse, digital current
limit circuit and a thermal overload sensing circuit.
!
Overtemperature Protection Circuit
!
5 Year Warranty
The input and output are overvoltage protected.
Selection Chart
Input Range
Outputs
VDC
Outputs
mA
VDC
Model
MIN
20.0
20.0
MAX
60.0
60.0
48D12.400TC
48D15.350TC
±12
±15
400
350
10 Watt Dual Series Block Diagram
SHIELDED
ISOLATION TRANSFORMER
+ OUTPUT
CMN
4
5
6
A
THERMAL SHUTDOWN
10µF
10µF
10µF
+ INPUT
3
- OUTPUT
CURRENT
MODE
PWM
- INPUT
ON/OFF
2
1
7
TRIM
LOW TC
BANDGAP REFERENCE
SIX-SIDED SHIELDED COPPER CASE
Manufacturing Company, Inc. • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: sales@calex.com
1
10 Watt TC Dual Series DC/DC Converters
Input Parameters*
Model
48D12.400TC
48D15.350TC
Units
VDC
MIN
MAX
20.0
60.0
20.0
60.0
Voltage Range
Reflected Ripple (2) (3), 0-20Mhz bw
TYP
700
mA RMS
mA
Input Current Full Load
No Load
TYP
TYP
250
6
285
6
Efficiency
TYP
TYP
79
75
%
Switching Frequency
120
75
kHz
Maximum Input Overvoltage,
100ms No Damage
MAX
TYP
VDC
ms
Turn-on Time, 1% Output Error
Recommended Fuse
10
(4)
Output Parameters*
48D12.400TC
±12
Model
48D15.350TC
Units
Output Voltage
±15
VDC
MIN
MAX
100
400
90
350
Rated Current (5)
mA
MIN
TYP
MAX
11.900
12.000
12.100
14.900
15.000
15.100
Voltage Range
100% Load
VDC
Output Balance
(Plus to Minus Output, Full Load)
Load Regulation
Min-Max Full Load (5)
TYP
MAX
TYP
MAX
TYP
MAX
TYP
MAX
0.1
0.5
0.1
0.5
1.0
2.0
0.1
0.2
0.1
0.5
0.1
0.5
1.3
2.5
0.1
0.2
%
%
%
%
Cross Regulation, Min-Max Load (6)
Line Regulation
Vin = Min-Max VDC
Short Term Stability (7)
Long Term Stability
TYP
TYP
TYP
TYP
TYP
0.02
0.2
0.02
0.2
%
%/kHrs
µs
Transient Response (8)
Dynamic Response (6)
Input Ripple Rejection (10)
200
135
>60
200
125
>60
mV peak
dB
TYP
MAX
TYP
MAX
20
50
50
150
15
20
50
50
150
18
Noise, 0-20MHz bw (2)
mV P-P
Temperature Coefficient
Overvoltage Clamp (11)
ppm/°C
TYP
VDC
Short Circuit Protection to
Common for all Outputs
Provides minimum of 8 hours continuous protection with current limiting and
thermal overload protection
A
NOTES
All parameters measured at Tc = 25° C, nominal input voltage
and full rated load unless otherwise noted. Refer to the CALEX
Application Notes for the definition of terms, measurement
circuits and other information.
(4) Determine the correct fuse size by calculating the maximum DC
current drain at low line input, maximum load and then adding 20
to 25% to get the desired fuse size. A slow blow type fuse
*
is
(5) Load regulation for the outputs is specified as the voltage
change when both outputs are changed from maximum
to minimum load at the same time. Minimum load is
required for specified regulation only. The converter can be
run at no load on either or both outputs with no damage.
recommended.
(2) Noise is measured per CALEX Application Notes found in our Power
conversion Design Guide and Catalog.
(3) An external capacitor capable of withstanding at least 700 mA RMS
of 120 kHz ripple current must be connected directly across the +
and - inputs. Suggested capacitors are:
(6) Cross regulation is defined as the change in one output when the
other output is changed from maximum to minimum load.
Sprague Electric:
672D686H100DM3C, 68µF, 100V
672D127H100ET3C, 120µF, 100V
ECEA2AFE101, 100µF, 100V
ECEA2AFE121, 120µF, 100V
(7) Short term stability is specified after a 30 minute warm-up at full
load, constant line and recording the drift over a 24 hour period.
Panasonic:
(8) The transient response is specified as the time required to settle
from a 50 to 75 % step load change (rise time of step = 2 µSec)
to a 50 mV error band.
United Chemi-Con: SXE100VB120M12.5X25LL, 120µF, 100V
SXE100VB180M12.5X30LL, 180µF, 100V
SXE100VB220M12.5X35LL, 220µF, 100V
(9) Dynamic response is the peak overshoot during a transient
as defined in note 8 above.
Note:All of the above capacitors are 105°C Rated. Multiple smaller sized
capacitors may be used in parallel as long as their total ripple
capability is above 700 mA RMS (see IRR curve).
(10) The input ripple rejection is specified for DC to 120 Hz ripple with
a modulation amplitude of 1% of Vin.
Manufacturing Company, Inc. • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: sales@calex.com
2
10 Watt TC Dual Series DC/DC Converters
General Specifications *
All Models
Units
ON/OFF Function (12)
ON Logic Level
or Leave Pin Open
MIN
8.0
VDC
Off Logic Level
MAX
TYP
2.0
VDC
Input Resistance
100
kohms
Converter Idle Current
ON/OFF Pin Low
TYP
1
mA
Isolation (13)
Isolation Voltage
10µA Leakage
Input-Output
Input to Output
Capacitance
MIN
TYP
700
60
VDC
pF
BOTTOM VIEW
SIDE VIEW
Mechanical tolerances unless otherwise noted:
X.XX dimensions: ±0.020 inches
Output Trim Function
Input Resistance
TYP
MIN
35
kohms
%
Programming Range
Environmental
±10
X.XXX dimensions: ±0.005 inches
Seal around terminals is not hermatic. Do not immerse unts in any
liquid.
Case Operating Range
No Derating
MIN
MAX
MIN
MAX
MIN
MAX
TYP
-25
80
-40
90
-55
105
10
°C
°C
Case Functional Range (14)
Pin
1
Function
ON/OFF
Storage Range
°C
°C/Watt
°C
2
-INPUT
Thermal Impedance (15)
Thermal Shutdown
Case Temperature
3
+INPUT
TYP
90
4
5
6
7
+OUTPUT
OUTPUT CMN
-OUTPUT
TRIM
General
Unit Weight
TYP
1.9
oz
(11) For module protection only, see also note 4.
(12) The logic ON/OFF pin is Open Collector TTL, CMOS, and relay
compatible. The input to this pin is referenced to Pin 2, -Input and
is protected to +100 VDC.
(13) Case is tied to Pin 3, + Input.
(14) Thefunctionaltemperaturerangeisintendedtogiveanadditional
data point for use in evaluating this power supply. At the low
functional temperature the power supply will function with no
side effects, however, sustained operation at the high
Low Noise Input Circuit
The circuit shown below will reduce reflected ripple to 50 mA
P-P. Keep all components as close to the converter as
possible
functional
temperature will reduce expected operational
life. The data sheet specifications are not guaranteed over
the functional temperature range.
(15) Thecasethermalimpedanceisspecifiedasthecasetemperature
rise over ambient per package watt dissipated.
The inductor is 35 turns on a Micro-Metals T50-26 Iron
Powder Core.
A
See note 3 for capacitor recommendations and note 4 for fuse
sizing.
Connections for Output Trim
Useoneresistorforeithertrimuportrimdown. Thevaluescan
range from infinity to zer ohms with zero ohms giving the most
trim.
THIS CAPACITOR IS REQUIRED FOR PROPER OPERATION
+ OUT 4
TRIM
+ OUT 4
FUSE
40µH, 700mA
TRIM
DOWN
+ INPUT
3
7
6
7
100K
TRIM
TRIM
UP
TO INPUT
SOURCE
- OUT 6
- OUT
SEE NOTE 3
USING TRIMPOT
USING FIXED RESISTORS
2 - INPUT
Manufacturing Company, Inc. • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: sales@calex.com
3
10 Watt TC Dual Series DC/DC Converters
Typical Performance (Tc=25°C; Vin=48VDC, Full Rated Load
48D12.400TC
48D12.400TC EFFICIENCY Vs LINE INPUT
48D12.400TC EFFICIENCY Vs LOAD
INPUT CURRENT Vs LINE INPUT VOLTAGE
83
82
81
80
79
78
77
76
75
74
85
80
75
70
65
60
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
LINE =
20VDC
50%
FULL LOAD
100%
FULL LOAD
LINE =
48VDC
LINE =
60VDC
100%
FULL LOAD
50%
FULL LOAD
20
25
30
35
40
45
50
55
60
20
20
0
40
60
80
100
0
10
20
30
40
50
60
LINE INPUT (VOLTS)
LOAD (%)
LINE INPUT (VOLTS)
48D15.350TC
48D15.400TC EFFICIENCY Vs LINE INPUT
48D15.350TC EFFICIENCY Vs LOAD
INPUT CURRENT Vs LINE INPUT VOLTAGE
81
80
79
78
77
76
75
74
73
72
85
80
75
70
65
60
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
LINE =
20VDC
100%
FULL LOAD
100%
FULL LOAD
50%
FULL LOAD
LINE =
48VDC
LINE =
60VDC
50%
FULL LOAD
20
25
30
35
40
45
50
55
60
40
60
80
100
0
10
20
30
40
50
60
LINE INPUT (VOLTS)
LOAD (%)
LINE INPUT (VOLTS)
INPUT RIPPLE Vs. LINE INPUT
OUTPUT VOLTAGE Vs. LOAD
OUTPUT IMPEDANCE Vs. FREQUENCY
1.0
0.8
0.6
0.4
0.2
0.0
10
110
100
90
80
70
60
50
40
30
20
10
0
1.0
0.1
0.01
20
25
30
35
40
45
50
55
60
100
200
300
400
500
600
700
10
100
1K
10K
100K
1MEG
LINE INPUT (VOLTS)
LOAD (%)
FREQUENCY (Hz)
A
TC SERIES POWER DERATING
OUTPUT VOLTAGE Vs CASE TEMPERATURE
12
10
8
0.10
0.05
INFINITE HEAT SINK ↓
STILL AIR
0.00
6
↑
-0.05
-0.10
-0.15
-0.20
←SAFE OPERATING AREA→
4
↓
2
0
-25
-15
-5
5
15
25
35
45
55
65
75
85
-40
-20
0
20
40
60
80
AMBIENT TEMPERATURE (Deg C)
CASE TEMPERATURE (Deg C)
Manufacturing Company, Inc. • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: sales@calex.com
4
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