INNOVATION EXCELLENCE Dual Output Mixed Voltage, Models
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INNOVATION EXCELLENCE
Dual Output
Mixed Voltage, Models
3.3V, Independent Dual Output Watt, DC/DC Converters
A-SERIES
Features
Independently regulated 3.3V outputs 3A/3.3V 4.25A simultaneously delivered Independent VOUT Trim pins margining Independent On/Off Control pins efficiency; 75mV ripple/noise Input ranges: 10-18V, 18-36V 36-75V 1950 EN60950 safety approvals Fully isolated, 1500Vdc guaranteed Input under overvoltage shutdown Independent OVP; short circuit protection Thermal shutdown
DATEL's series DC/DC converters includes independent converters package. BWR-5/3-3.3/4.25 family provides both Amps 3.3V 4.25 Amps combined output power Watts from input ranges (-D12A), (-D24A), (-D48A). Each output regulated control loop provide load ±0.5% line regulation. Individual trim pins negative positive on/off control allow independent adjustment output voltages combination power-on sequencing between 3.3V outputs. high efficiency allows full load operation +65°C ambient temperature still environment. Although functionally independent, both outputs driven from synchronized PWMs prevent asynchronously generated beat frequencies. Housed plastic case, models include input filtering, input overvoltage protection, independent output short circuit current limiting protection independent output overvoltage protection well thermal shutdown. These devices meet IEC950, UL1950 EN6950 safety standards. reports available upon request. "D48A" models marked (meet requirements).
+INPUT
OUTPUT
-INPUT ON/OFF CONTROL INPUT UNDERVOLTAGE OVERVOLTAGE COMPARATORS CONTROLLER
SWITCH CONTROL OUTPUT RETURN
OPTO ISOLATION
REFERENCE ERROR
TRIM +3.3V TRIM (10)
3.3V ON/OFF CONTROL
CONTROLLER
OPTO ISOLATION
REFERENCE ERROR
+3.3V OUTPUT
SWITCH CONTROL +3.3V OUTPUT RETURN
Figure Simplified Schematic
DATEL, Inc., Mansfield, 02048 (USA) Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 Email: sales@datel.com Internet: www.datel.com
A-Series
LTAG
Performance Specifications Ordering Guide
VOUT (Volts)
Input Regulation (Max.) Line
±0.5% ±0.5% ±0.5% ±0.5% ±0.5% ±0.5%
Model
BWR-5/3-3.3/4.25-D12A BWR-5/3-3.3/4.25-D24A BWR-5/3-3.3/4.25-D48A
IOUT (Amps)
4.25 4.25 4.25
Output (mVp-p) Typ.
Max.
Load
Nom. (Volts)
Range (Volts)
10-18 18-36 36-75
(mA)
210/2846 115/1374 70/687
Efficiency Min.
85.5% 85.5%
Typ.
Package (Case, Pinout)
C20, C20, C20,
Typical +25°C under nominal line voltage "full-load" conditions. combination 5V/3.3V current, exceed published IOUT specification Watts). Ripple/Noise (R/N) measured over 20MHz bandwidth with 0.47µF ceramic output capacitors. Tested from load 100% load. Nominal line voltage, load/full load condition.
4.25
Dual Output/ Mixed-Voltage Series Nominal Output Voltage: Volts Maximum Output Current: Amps Nominal Output Voltage: Volts Optional Functions A-Series High Reliability Input Voltage Range: D12A 10-18 Volts (12V nominal) D24A 18-36 Volts (24V nominal) D48A 36-75 Volts (48V nominal) Maximum Output Current: 4.25 Amps
Optional Functions
Watt DC/DC's designed negative logic on/off control ("N" suffix) added pins position. Blank
Standard product. options specified.
Negative polarity on/off control length: 0.110 (2.79mm) ±0.010 length: 0.145 (3.68mm) ±0.010
Refer last page additional options.
2.00 (50.08) PLASTIC CASE
0.48 (12.19)
Case
STANDOFF 0.020 (0.51) 0.20 (5.08) 0.040 ±0.001 DIA. (1.016 ±0.025)
Connections Function +Input -Input On/Off +3.3V On/Off Output Return Trim +3.3V Return +3.3V Output +3.3V Trim
1.800 (45.72)
0.10 (2.54)
2.00 (50.80)
0.600 (15.24) 0.200 (5.08)
1.600 (40.64) 1.200 (30.48)
0.300 (7.62) 0.600 (15.24) 1.000 (25.40)
BOTTOM VIEW
DIMENSIONS INCHES (MM)
0.200 0.20 (5.08) (5.08)
LTAG
Models
Performance/Functional Specifications
Typical +25°C under nominal line voltage, balanced "full-load" conditions, unless noted.
Input
Input Voltage Range: D12A Models D24A Models D48A Models Overvoltage Shutdown: D12A Models D24A Models D48A Models Start-Up Threshold: D12A Models D24A Models D48A Models Undervoltage Shutdown: D12A Models D24A Models D48A Models Input Current: Normal Operating Conditions Standby Mode: Off, Thermal Shutdown Input Reflected Ripple Current: Source Impedance D12A Models D24A/D48A Models Internal Input Filter Type Reverse-Polarity Protection: D12A Models D24A Models D48A Models On/Off Control (Pins D12A, D24A D48A Models 10-18 Volts (12V nominal) 18-36 Volts (24V nominal) 36-75 Volts (48V nominal) 18.5-21 Volts (20V nominal) 37-40 Volts (38V typical) 77-81 Volts (79V typical) 9.4-10 Volts (9.6V typical) 16.5-18 Volts (17V typical) 34-36 Volts (35V typical) 7-8.5 Volts typical) 16-17.5 Volts (16.5V typical) 32.5-34.5 Volts (33.5V typical) Ordering Guide 10mA typical <0.1, external input filtering (0.022µF 4.7µH 2.46µF) minute duration, maximum minute duration, maximum minute duration, maximum open +VIN, 1.6mA 0-0.8V, 0-1.2V, open. Overvoltage Protection: Output 3.3V Output Maximum Capacitive Loading D12A Models 3.3V D24A, D48A Models 3.3V Temperature Coefficient
Output (continued)
Magnetic feedback, transorb Volts Volts 1000µF 680µF 1000µF 680µF ±0.02%
Dynamic Characteristics
Dynamic Load Response: (50-100% load step VOUT) 3.3V (50-100% load step VOUT) Start-Up Time: VOUT On/Off VOUT Switching Frequency MTBF D12A Models D24A Models D48A Models Operating Temperature (Ambient): Without Derating: D12A Models D24A D48A Models With Derating Case Temperature: Maximum Operational Thermal Shutdown Storage Temperature Dimensions Case Material Material Weight: 200µsec maximum 200µsec maximum 10ms 355kHz (±35kHz)
Environmental
Bellcore, ground fixed, full power 25°C ambient 873.9 thousand hours 1.32 million hours 1.23 million hours
+60°C +65°C +100°C (See Derating Curves) +100°C +100°C minimum, +110°C maximum +120°C
Suffix Models
Physical
0.5" (50.8 50.8 12.7mm) Diallyl phthalate, UL94V-0 rated Brass, solder coated ounces (76.5 grams)
Output
VOUT Accuracy Output 3.3V Output Minimum Loading Specification Minimum Loading Stability Ripple/Noise (20MHz Line/Load Regulation Efficiency Trim Range Isolation Voltage: Input-to-Output Isolation Resistance Isolation Capacitance Current Limit Inception: 98.5% VOUT 3.3V 98.5% VOUT Short Circuit Current: Output 3.3V Output ±1.5% maximum ±1.5% maximum IOUT maximum load Ordering Guide Ordering Guide Ordering Guide 1500Vdc minimum 100M 470pF 3.8-5.1 Amps 5.4-6.8 Amps Amps average current Amps average current
Primary Secondary Insulation Level Operational
models specified with external 0.47µF ceramic output capacitors. Technical Notes/Graphs details. Applying voltage On/Off Control (pins when input power applied converter cause permanent damage. Output noise further reduced with installation additional external output capacitors. Technical Notes. On/Off control designed driven with open collector appropriate voltage levels. Voltages must referenced -Input (pin Demonstrated MTBF available request. conditions with less than minimum loading, outputs remain stable. However, regulation performance will degrade. Maximum applied voltage On/Off suffix) less than 19.0V.
A-Series
LTAG
Absolute Maximum Ratings
Input Voltage: Continuous:
OUTPUT +INPUT RETURN -INPUT
LOAD
D12A Models D24A Models D48A Models Transient (100msec): D12A Models D24A Models D48A Models
Volts Volts Volts Volts Volts Volts Input Current must limited. minute duration. Fusing recommended. Amps Amps Amps Current limited. Devices withstand indefinite output short circuit.
TRIM
RTRIM DOWN
ON/OFF CONTROL +3.3V ON/OFF CONTROL
+3.3V RETURN
+3.3V LOAD
Input Reverse-Polarity Protection D12A Models D24A Models D48A Models Output Current
+3.3V OUTPUT
+3.3V TRIM
3.3V RTRIM DOWN
RTDOWN
2.49(VO 2.52)
3.3V RTDOWN
2.49(VO 1.27)
-14.3
On/Off Control (Pins Max. Voltages Referenced -Input (pin D12A, D24A D48A Models +VIN Models ±19V Storage Temperature Lead Temperature (Soldering, sec.) +120°C +300°C
Figure Trim Connections Decrease Output Voltages Using Fixed Resistors
OUTPUT +INPUT RETURN -INPUT
LOAD
These stress ratings. Exposure devices these conditions adversely affect long-term reliability. Proper operation under conditions other than those listed Performance/Functional Specifications Table implied, recommended.
TRIM
RTRIM
ON/OFF CONTROL +3.3V ON/OFF CONTROL
+3.3V RETURN
+3.3V LOAD
TECHNICAL NOTES
+3.3V OUTPUT
+3.3V TRIM
3.3V RTRIM
Trimming Output Voltages These converters have trim capability (pins that allow users independently adjust output voltages ±5%. Adjustments output voltages accomplished trim pot, Figure single fixed resistor shown Figures single fixed resistor increase decrease output voltage depending connection. Fixed resistors should have absolute TCR's less than 100ppm/°C minimize sensitivity changes temperature. single resistor connected from Trim (pin Output (pin Figure will decrease output voltage. resistor connected from Trim (pin Return (pin will increase output voltage. Figure Similarly, 3.3V output adjusted using single resistor connected from +3.3V Trim (pin +3.3V Output (pin +3.3V Return (pin Figures
6.27
3.3V RTUP
3.16
-14.3
Figure Trim Connections Increase Output Voltages Using Fixed Resistors
Note: Resistor values Accuracy adjustment subject tolerances resistors factory-adjusted output accuracy. desired output voltage.
Typical Performance Curves
Output Power Ambient Temperature (VIN nominal, natural convection flow.)
D24A, D48A MODELS
Output Power (watts)
OUTPUT +INPUT TRIM -INPUT RETURN ON/OFF CONTROL +3.3V ON/OFF CONTROL +3.3V RETURN
5-22 TURNS
D12A MODELS
LOAD
5-22 TURNS
+3.3V TRIM
+3.3V LOAD
+3.3V OUTPUT
Figure Trim Connections Using Trim
Ambient Temperature (°C)
LTAG
Models
Typical Performance Curves
Typical Start-Up from
(VIN nominal, 3A/3.3V 4.25A, 0.47µF output capacitors.)
D24A Models: Efficiency Line Load
Efficiency 5V@0.3A, 3.3V@4.25A
5V@3A, 3.3V@2.325A
5V@1.65A, 3.3V@4.25A 5V@3A, 3.3V@0.4A
5VOUT 3.3VOUT
Line Voltage (Volts)
2.5msec/div
D12A Models: Efficiency Line Load
5V@3A, 3.3V@4.25A
D48A Models: Efficiency Line Load
5V@3A, 3.3V@2.325A
Efficiency
5V@3A, 3.3V@0A
Efficiency
5V@0.3A, 3.3V@4.25A 5V@3A, 3.3V@0.4A 5V@1.65A, 3.3V@4.25A
5V@0A, 3.3V@4.25A
11.14 12.29 13.43 14.57 15.71 16.86 Line Voltage (Volts)
Line Voltage (Volts)
A-Series Options Adaptations
Optional Functions
LTAG
Model BWR-5/3-3.3/4.25-D48A-30721
2.00 (50.08) PLASTIC CASE
dual output DC/DC offer various electrical mechanical options. Ordering Guide page trailing (A-Series) each part number pertains base part number. Part-number suffixes added after "A," indicating selection standard options. resulting part number "standard product" available customer desiring that particular combination options, described below. Suffix Blank Description On/Off Control functions with positive polarity (5V) (3.3V) positions. length remains inches (5.08 mm). On/Off Control function with negative polarity (5V) (3.3V) positions. Trim length 0.110 ±0.010 inches (2.79 ±0.25mm). This option requires 100-piece minimum order quantity. Trim length 0.145 ±0.010 inches (3.68 ±0.25mm). This option requires 100-piece minimum order quantity.
0.48 (12.19)
Case
0.040 ±0.001 DIA. (1.016 ±0.025) 0.20 (5.08) 1.800 (45.72) 0.10 (2.54) STANDOFF 0.020 (0.51)
0.200 (5.08)
0.400 (10.16)
1.200 (30.48) 0.400 (10.16)
2.00 (50.08)
Adaptations There various additional configurations available DC/DC's. Because designating each them with standard part-number suffix always feasable, such designated DATEL assigning 5-digit "adaptation code" after part-number suffixes. Once configuration been requested customer created DATEL, resulting product available customer "standard" off-the-shelf product. Contact DATEL directly interested your options/adaptations. policy minimum order quantities apply. Consequently, following product offered sale: BWR-5/3-3.3/4.25-D48A-30721 Standard product, 48VIN, 5V/3A 3.3V/4.25A outputs with modified C22/P60 (competitor compatible out), positive common On/Off logic both outputs, modified Trim function 3.3VOUT trim VOUT) Common return both outputs. Trimmed length 0.125 inches (3.2 mm).
0.100 (2.54)
0.40 (10.16)
BOTTOM VIEW
DIMENSIONS INCHES (MM)
Connections Function +Input -Input On/Off Control Output Output Return +3.3V Output +3.3V Trim
INNOVATION EXCELLENCE
9001 REGISTERED
DS-0486A
3/02
DATEL, Inc. Cabot Boulevard, Mansfield, 02048-1151 Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 Internet: www.datel.com Email: sales@datel.com
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444 DATEL S.A.R.L. Montigny Bretonneux, France Tel: 01-34-60-01-01 DATEL GmbH Germany Tel: 89-544334-0 DATEL Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-6354-2025
DATEL makes representation that products circuits described herein, other technical information contained herein, will infringe upon existing future patent rights. descriptions contained herein imply granting licenses make, use, sell equipment constructed accordance therewith. Specifications subject change without notice. DATEL logo registered DATEL, Inc. trademark.
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