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 5 to 7.5 Watt FW Single Series DC/DC Converters
Features
! ! !
Description
The low voltage FW single output converters are designed for ultra wide input range, low noise industrial and instrument applications requiring low input operating voltages. The wide input range (3:1) is ideal for battery or unregulated input applications. These converters are state-of-the-art 100 kHz designs that provide outstanding line and load regulation with efficiencies approaching 82%. The single outputs are regulated with a high loop gain current mode control method that provides linear regulator type performance with a true, high efficiency switching DC/DC topology. The large amount of loop gain also insures excellent input ripple rejection and line transient response. All converters in this series are protected from output short circuit, thermal overload and overvoltage transients on the input and output.
Low noise outputs, 70 mV P-P maximum Very low reflected ripple, 50 mA P-P maximum Excellent regulation from no load to full load 0.2% maximum Excellent line regulation, 0.1% maximum Efficiencies to 82% Six-sided shielded low thermal gradient copper case Five Year Warranty
! ! ! !
Selection Chart
Model 12S5.1500FW 12S12.625FW 12S15.500FW Input Range VDC MIN MAX 9 9 9 27 27 27 Output VDC 5 12 15 Output mA 1500 625 500
7.5 Watt FW Single Series Block Diagram
ISOLATION TRANSFORMER
THERMAL SHUTDOWN
A
3 + OUTPUT
+ INPUT 1
5 CMN CURRENT MODE PWM
- INPUT 2
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
STCO#970521-2
BANDGAP REFERENCE
5 to 7.5 Watt FW Single Series DC/DC Converters
Input Parameters*
Model Voltage Range Reflected Ripple (2) Input Current Full Load No Load Efficiency Switching Frequency Maximum Input Overvoltage 100ms No Damage Turn-on Time, 1% Output Error Recommended Fuse MIN MAX TYP MAX TYP TYP TYP TYP MAX TYP 12S5.1500FW 12S12.625FW 9.0 27.0 23 50 775 14 81 100 48 10 (3) 12S15.500FW Units VDC 22 50 765 16 82 mA P-P mA % kHz VDC ms AMPS
25 50 815 12 77
Output Parameters*
Model Output Voltage Rated Current Voltage Range Load Regulation 0-100% Full Load Line Regulation Vin = Min-Max VDC Short Term Stability (5) Long Term Stability Transient Response (6) Dynamic Response (7) Input Ripple Rejection (8) Noise, 0-20MHz bw (2) Temperature Coefficient Overvoltage Clamp (9) Short Circuit Protection to Common for all Outputs MIN MAX MIN TYP MAX TYP MAX TYP MAX TYP TYP TYP TYP TYP TYP MAX TYP MAX TYP 12S5.1500FW 5 0.0 1500 4.950 5.000 5.050 0.08 0.2 0.02 0.1 0.05 12S12.625FW 12S15.500FW Units 12 15 VDC 0.0 0.0 mA 625 500 11.900 14.900 12.000 15.000 VDC 12.100 15.100 0.02 0.02 % 0.1 0.1 0.01 0.01 % 0.1 0.1 0.02 0.02 %/24Hrs <0.2 %/kHrs 200 300 200 s 200 270 210 mV peak 37 25 25 dB 35 mV P-P 70 50 ppm/C 150 6.8 15 18 VDC Provides minimum of 8 hours continous protection with current limiting and thermal overload techniques
NOTES:
A
(7) Dynamic response is the peak overshoot during a transient as defined in note 6. (8) The input ripple rejection is specified for DC to 120 Hz ripple with a modulation amplitude of 1% of Vin. (9) For module protection only, see note 3. (10) The functional temperature range is intended to give an additional 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 functional temperature will reduce expected operational life. The data sheet specifications are not guaranteed over the functional temperature range. (11) The case thermal impedance is specified as the case temperature rise over ambient per package watt dissipated.
*
(2) (3) (4) (5) (6)
All Parameters measured at Tc=25C, 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. Noise is measured per CALEX Application Notes. Measurement bandwidth is 0-20 MHz. Determine the correct fuse size by referring to CALEX Application Notes. Case is tied to Pin 5, - Output. Short term stability is specified after a 30 minute warmup at full load, constant line and recording the drift over a 24 hour period. The transient response is specified as the time required to settle from a 50 to 75 % step load change (rise time of step = 2 Sec) to a 1% error band.
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
STCO#970521-2
5 to 7.5 Watt FW Single Series DC/DC Converters
General Specifications*
All Models Isolation (4) Breakdown Voltage Input-Output 10A Leakage Input to Output Capacitance Environmental Case Operating Range No Derating Units
MIN TYP
700 340 -25 85 -40 95 -55 105 10 100
VDC pF
MIN MAX MIN Case Functional Range (10) MAX MIN Storage Range MAX Thermal Impedance (11) TYP Thermal Shutdown TYP Case Temperature General TYP
C C C C/Watt C
Unit Weight Mounting Kits
1.7 MS15 & MS6
oz
Typical Performance (Tc=25C, Vin=Nom VDC, Rated Load).
OUTPUT VOLTAGE Vs. OUTPUT LOAD
120
Mechanical tolerances unless otherwise noted: X.XX dimensions: 0.010 inches X.XXX dimensions: 0.005 inches Seal around terminals is not hermetic. Do not immerse units in any liquid.
Pin 1 2 3 5 Function +INPUT -INPUT +OUTPUT CMN
OUTPUT VOLTAGE (%)
100
80
60
40
20
0 0 20 40 60 80 100 120 140 160
OUTPUT LOAD (%)
EFFICIENCY Vs. LOAD (12V OUTPUT)
90
EFFICIENCY Vs. LINE INPUT (12V OUTPUT)
85
48S5.1500, 48S12.625 & 48S15.500 INPUT CURRENT Vs LINE INPUT VOLTAGE
0.35
50% FULL LOAD
INPUT CURRENT (AMPS)
LINE = 12VDC
0.30 0.25 0.20 0.15 0.10 0.05
EFFICIENCY (%)
80
EFFICIENCY (%)
100% FULL LOAD
LINE = 9VDC
80
100% FULL LOAD
A
50% FULL LOAD
0 10 20 30 40 50 60 70 80
70
LINE = 27VDC
60 0 10 20 30 40 50 60 70 80 90 100
75 9 11 13 15 17 19 21 23 25 27
0.00
LOAD (%)
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
OUTPUT VOLTAGE Vs CASE TEMPERATURE
0.10
OUTPUT IMPEDANCE Vs. FREQUENCY
10
DERATING
120
OUTPUT IMPEDANCE (OHMS)
NORMALIZED OUTPUT (%)
0.05 -0.00 -0.05 -0.10 -0.15 -0.20 -0.25 -0.30 -40 -20 0 20 40 60 80 100
15 VOLT OUTPUT
100
1
OUTPUT POWER (%)
NO HEAT SINK
80
INFINITE HEAT SINK
SAFE OPERATING AREA
60
.1
40
5 VOLT OUTPUT
20
.01 10 100 1000 10000 100000 1000000
0 -40 -20 0 20 40 60 80 100
CASE TEMPERATURE (Deg C)
FREQUENCY (Hz)
AMBIENT 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
3
STCO#970521-2
5 to 7.5 Watt FW Single Series DC/DC Converters
Features
Improved Second Source Benefits:
! ! ! ! ! ! !
Description
These single output converters are designed for low noise, telecommunications, industrial and instrument applications. Their wide input range (2:1) makes them ideal for battery or unregulated input applications. These converters are state-of-the-art 120 KHz MOSFET based designs that provide outstanding line and load regulation with efficiencies approaching 85%. The outputs are regulated by a high loop gain current mode control method that provides linear regulator type performance with a true, high efficiency switching DC/DC topology. The large amount of loop gain also insures excellent input ripple rejection and line transient response. The FW Single converters are protected from output shorts to common by a high speed, pulse-by-pulse, digital, current limit circuit. The input and output are overvoltage protected with transient suppressor diodes. UL recognition under specification numbers 1459 and 1012 is currently pending.
Low noise outputs, 50 mV p-p maximum Very low reflected ripple, 15 mA p-p maximum Excellent regulation, 0.3% maximum Improved line regulation, 0.1% maximum Efficiencies to 84% Reverse voltage protected input Five Year Warranty
Selection Chart
Model 48S5.1000FW * 48S5.1500FW * 48S12.625FW * 48S15.500FW * Input Range VDC MIN 20 36 36 36 MAX 60 72 72 72 Output VDC 5 5 12 15 Output mA 1000 1500 625 500
* These units are Recognized to UL 1459-2
5 - 7.5 Watt FW Single Series Block Diagram
SHIELDED ISOLATION TRANSFORMER
A
C2 D1
3 + OUTPUT
PROTECTION DIODE + INPUT 1 CURRENT MODE PWM
C1
5 CMN
- INPUT 2
Output
C1
C2
D1
5 12 15
68F 10F 10F
78F 20F 20F
6.8V 15V 18V
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
STCO#970521-2
SIX-SIDED SHIELDED COPPER CASE
BANDGAP REFERENCE
5 to 7.5 Watt FW Single Series DC/DC Converters
Input Parameters*
Model Voltage Range Reflected Ripple (2), 0-20MHz bw Input Current Full Load No Load Efficiency Switching Frequency Maximum Input Overvoltage 100ms No Damage Turn-on Time, 1% Output Error Recommended Fuse Reverse Polarity MIN MAX TYP MAX TYP TYP TYP TYP MAX TYP 48S5.1000FW 20.0 60.0 48S5.1500FW (13) 36.0 72.0 48S12.625FW (13) 36.0 72.0 4 15 139 5 75 195 3 80 120 80 10 (3) 70 VDC 190 4 82 185 4 85 48S15.500FW (13) 36.0 72.0 Units VDC mA P-P mA % kHz VDC ms
Output Parameters*
Model Output Voltage Rated Current(4) Voltage Range 100% Load Load Regulation 0-100% Line Regulation Vin = Min-Max VDC Short Term Stability (5) Long Term Stability Transient Response (6) Dynamic Response (7) Input Ripple Rejection (8) Noise, 0-20MHz bw (2) with 0.1F External Capacitor with no External Capacitor Temperature Coefficient Overvoltage Clamp (9) Short Circuit Protection to Common for all Outputs MIN MAX MIN TYP MAX TYP MAX TYP MAX TYP TYP TYP TYP TYP TYP MAX TYP MAX TYP MAX TYP 48S5.1000FW 5 0.0 1000 4.950 5.000 5.050 0.1 0.3 0.01 0.1 0.05 0.05 < 0.2 50 100 125 180 38 10 50 40 100 50 150 200 200 150 170 0.02 0.02 48S5.1500FW 5 0.0 1500 4.950 5.000 5.050 48S12.625FW 12 0.0 625 11.900 12.000 12.100 0.05 0.1 48S15.500FW 15 0.0 500 14.900 15.000 15.100 Units VDC mA VDC % % %/24Hrs %/kHrs s mV peak dB
mV P-P
ppm/C
6.8 6.8 15 18 VDC Provides minimum of 8 hours continous protection with current limiting and thermal overload techniques
A
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
5
STCO#970521-2
NOTES: measured at nominal input * All parametersrated load unlessTc=25 C, noted. Refer to voltage and full otherwise the CALEX Application Notes for the definition of terms, measurement circuits and other information. (2) Noise is measured per CALEX Application Notes. The output noise is measured with a 0.1F, 50V, ceramic capacitor connected directly across the output pins. Measurement bandwidth is 0-20 MHz. (3) 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 recommended. (4) No minimum load required. (5) 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. (6) The transient response is specified as the time required to settle from a 50 to 75 % step load change (rise time of step = 2 Sec) to a 1% error band.
(7) (8) (9) (10) (11)
(12) (13)
Dynamic response is the peak overshoot during a transient as defined in note 6 above. The input ripple rejection is specified for DC to 120 Hz ripple with a modulation amplitude of 1% of Vin. For module protection only, see also note 3. Case is tied to Pin 5, CMN. The functional temperature range is intended to give an additional 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 functional temperature will reduce expected operational life. The data sheet specifications are not guaranteed over the functional temperature range. The case thermal impedance is specified as the case temperature rise over ambient per package watt dissipated. These products are UL Recognized for an input voltage range of 36 to 60 VDC.
5 to 7.5 Watt FW Single Series DC/DC Converters
General Specifications
All Models Isolation Isolation Voltage Input-Output Input-Case 10A Leakage Input to Output Capacitance Environmental Case Operating Range No Derating Units
MIN MIN TYP
1544 1544 45 -25 80 -40 90 -55 105 10 1.7 MS6 & MS15
VDC
pF
MIN MAX MIN Case Functional Range (11) MAX MIN Storage Range MAX Thermal Impedance (10) TYP General TYP
C C C C/Watt oz
BOTTOM
Mechanical tolerances unless otherwise noted: X.XX dimensions: 0.020 inches X.XXX dimensions: 0.005 inches
SIDE VIEW
Unit Weight Mounting Kits
Seal around terminal is not hermatic. Do not immerse units in any liquid.
Pin 1 2 3 5
Function +INPUT -INPUT +OUTPUT CMN
Typical Performance (Tc=25C, Vin=48 VDC, Full Rated Load).
48S5.1000FW EFFICIENCY Vs LOAD
85 80 75 70 65 60 55 50 0 20 40 60 80 100 82
48S5.1000FW EFFICIENCY Vs LINE INPUT
0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00
20 25 30 35 40 45 50 55 60
48S5.1000FW INPUT CURRENT Vs LINE INPUT VOLTAGE
EFFICIENCY (%)
EFFICIENCY (%)
LINE = 48VDC LINE = 60VDC
78
100% FULL LOAD
INPUT CURRENT (AMPS)
LINE = 20VDC
80
100% FULL LOAD
76
74
50% FULL LOAD
A
0 10 20
50% FULL LOAD
72
70
30
40
50
60
LOAD (%)
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
48S5.1500FW EFFICIENCY Vs LOAD
85 85
48S12.625FW EFFICIENCY Vs LOAD
90 85
48S15.500FW EFFICIENCY Vs LOAD
80
LINE = 36VDC
EFFICIENCY (%)
80
EFFICIENCY (%)
EFFICIENCY (%)
LINE = 36VDC
75
80 75 70 65 60 55
75
LINE = 72VDC
70
LINE = 36VDC
70
LINE = 48VDC
65
65
LINE = 48VDC
LINE = 72VDC
LINE = 48VDC
LINE = 72VDC
60
60
55 0 20 40 60 80 100
55 0 20 40 60 80 100
0
20
40
60
80
100
LOAD (%)
LOAD (%)
LOAD (%)
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
6
STCO#970521-2
5 to 7.5 Watt FW Single Series DC/DC Converters
Typical Performance (Tc=25C, Vin=48 VDC, Full Rated Load).
48S5.1500FW EFFICIENCY Vs LINE INPUT
83 84
48S12.625FW EFFICIENCY Vs LINE INPUT
85
48S15.500FW EFFICIENCY Vs LINE INPUT
82
50% FULL LOAD
83
100% FULL LOAD
84
EFFICIENCY (%)
EFFICIENCY (%)
EFFICIENCY (%)
100% FULL LOAD
83
82
81
82
100% FULL LOAD
80
81
50% FULL LOAD
81
50% FULL LOAD
80
80
79 35 40 45 50 55 60 65 70 75
79 35 40 45 50 55 60 65 70 75
79 35 40 45 50 55 60 65 70 75
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
LINE INPUT (VOLTS)
48S5.1500, 48S12.625 & 48S15.500 INPUT CURRENT Vs LINE INPUT VOLTAGE
0.35 0.30 120
OUTPUT VOLTAGE Vs. OUTPUT LOAD
10
OUTPUT IMPEDANCE Vs. FREQUENCY
INPUT CURRENT (AMPS)
OUTPUT VOLTAGE (%)
100
0.25 0.20 0.15 0.10 0.05 0.00 0 10 20 30
100% FULL LOAD
IMPEDANCE (OHMS)
12 & 15V OUTPUT
1
80
60
.1
50% FULL LOAD
40
.01
20
5V OUTPUT
.001
0 20 40 60 80 100 120 140 160
0 40 50 60 70 80
10
100
1K
10K
100K
1M
LINE INPUT (VOLTS)
OUTPUT LOAD (%)
FREQUENCY (Hz)
OUTPUT VOLTAGE Vs CASE TEMPERATURE
0.10 0.05
DERATING
120
NORMALIZED OUTPUT (%)
100
-0.00 -0.05 -0.10 -0.15 -0.20 -0.25 -0.30 -40 -20 0 20 40 60 80 100
OUTPUT POWER (%)
NO HEAT SINK
80
INFINITE HEAT SINK
SAFE OPERATING AREA
60
40
20
0 -40 -20 0 20 40 60 80 100
CASE TEMPERATURE (Deg C)
AMBIENT TEMPERATURE (Deg C)
A
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
7
STCO#970521-2


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