INNOVATION EXCELLENCE Dual Output Mixed Voltage, DSM/DWR Mod

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INNOVATION EXCELLENCE Dual Output Mixed Voltage, DSM/DWR Mod

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INNOVATION EXCELLENCE
Dual Output
Mixed Voltage, DSM/DWR Models
Through-Hole, 3.3V 15Watt, DC/DC Converters
Features
Regulated 3.3V outputs 2.65Amps/3.3V Amps capability Watts total output power through-hole package Available input voltage ranges: 10-18V, 18-36V 36-75V No-load stable operation UL1950 EN60950 safety approvals mark available (75V-input models) Continuous short-circuit protection Fully isolated, 1500Vdc guaranteed +100°C operating temperature Input under overvoltage shutdown Output OVP, thermal shutdown
surface mount through-hole applications requiring Watts power from 3.3V, DATEL offers power sharing DC/DC converter capable meeting your output current requirements. DSM/DWR series available with three different input voltage ranges: 36-75V input (D48), 18-36V input (D24) 10-18V input (D12). These converters fully isolated capable delivering combination 3.3V output current combined total Watts output power. Housed metal packages coated with electrically non-conductive finish, DSM/DWR converters regulated 3.3V control loop that provides load regulation ±0.5% 3.3V output ±1.5% output. models include input filtering, input overvoltage undervoltage shutdown circuitry, output short-circuit current-limiting protection, thermal shutdown. models provide trim capability on/off control function. Fully synchronous output rectification provides high efficiency (86%) stable output under no-load conditions. DSM/DWR power sharing modules offer output ripple noise performance, 1500 isolation voltage, fully specified +100°C operation. These devices meet IEC950, UL1950 EN6950 safety standards; reports available request. "D48" models marked (meets requirements).
+INPUT
OUTPUT
SWITCH CONTROL +3.3V OUTPUT
-INPUT ON/OFF CONTROL CONTROLLER
OUTPUT RETURN
OPTO ISOLATION COMPARATORS THERMAL SHUTDOWN
REFERENCE ERROR TRIM
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
Series
LTAG
Performance Specifications Ordering Guide
VOUT (Volts)
Input Regulation (Max.) Line
±0.5% ±0.5% ±0.5%
Model
DSM-5/2.65-3.3/3-D12 DWR-5/2.65-3.3/3-D12 DSM-5/2.65-3.3/3-D24 DWR-5/2.65-3.3/3-D24 DSM-5/2.65-3.3/3-D48 DWR-5/2.65-3.3/3-D48
IOUT (Amps)
2.65 2.65 2.65
Output (mVp-p) Typ.
Max.
Load
±1.5% ±0.5% ±1.5% ±0.5% ±1.5% ±0.5%
Nom. (Volts)
Range (Volts)
10-18 18-36 36-75
(mA)
60/1450 35/730 20/370
Efficiency Min.
Typ.
Package (Case, Pinout)
C18A, C34, C18A, C34, C18A, C34,
Typical +25°C under nominal line voltage balanced "full-load" conditions 1.5A/3.3V 2.25A). combination 5V/3.3V rated IOUT current, exceed Watts output power. (See derating graphs.) Ripple/Noise (R/N) measured over 20MHz bandwidth. models specified with 0.47µF ceramic parallel with 100µF tantalum output capacitors.
Tested from 250mA 100% full load (other output 250mA load). Nominal line voltage, load/balanced full-power condition.
2.65
Dual Output: DSM: Surface-Mount Series (Selective soldering only) DWR: Through-Hole Series Nominal Output Voltage: Volts Maximum Output Current: 2.65 Amps Optional Functions Input Voltage Range: 10-18 Volts (12V nominal) 18-36 Volts (24V nominal) 36-75 Volts (48V nominal) Maximum Output Current: Amps Nominal Output Voltage: Volts
0.100 (2.54) 0.500 (12.70) 0.300 (7.62) VIEW 0.10 (2.54) 2.00 (50.80) 0.110 (2.79) 0.060 (1.52) 0.015 (0.38) 0.110 (2.79)
Optional Functions
DSM/DWR Watt DC/DC's designed with On/Off Control function, with positive polarity position. Blank On/Off Control function (positive polarity) length: 0.110 inches (2.79mm) ±0.010 length: 0.145 inches (3.68mm) ±0.010
2.00 (50.80)
Case C18A Models
0.800 (20.32) 0.200 (5.08)
0.45 (11.43)
Case Models
METAL CASE
1.00 (25.40)
INSULATED 0.040 ±0.001 DIA. (1.016 ±0.025) 1.800 (45.72) BOTTOM VIEW
0.800 (20.32) 1.00 (25.40) 0.200 (10.16)
0.20 (5.08)
0.10 (2.54)
0.300 (7.62)
0.200 (5.08)
0.52 (13.21)
INSULATED BASE METAL CASE
DIMENSIONS INCHES (MM)
0.015 (0.38)
0.055 (1.40)
0.10 (2.54)
Connections Function +Input -Input On/Off Control Case Output Output Return +3.3V Output Trim
LTAG
DSM/DWR Models
Performance/Functional Specifications
Typical +25°C under nominal line voltage, balanced "full-load" conditions, unless noted.
Input
Input Voltage Range: Models Models Models Overvoltage Shutdown: Models Models Models Start-Up Threshold: Models Models Models Undervoltage Shutdown: Models Models Models Input Current: Normal Operating Conditions Standby Mode: Off, Thermal Shutdown Input Reflected Ripple Current Internal Input Filter: Capacitive Models Models Models Reverse-Polarity Protection: Models Models Models On/Off Control: (Pin 10-18 Volts (12V nominal) 18-36 Volts (24V nominal) 36-75 Volts (48V nominal) 18.5-21 Volts (19V typical) 37-40 Volts (38.5V typical) 77-81 Volts (79.5V typical) 9.4-10 Volts (9.6V typical) 16.5-18 Volts (17V typical) 34-36 Volts (35V typical) 7.0-8.5 Volts typical) 15.5-17.5 Volts (16.5V typical) 32.5-35.5 Volts (33.5V typical) Ordering Guide 10mA 10mAp-p 10µF 3.3µF 1.5µF minute duration, maximum minute duration, maximum minute duration, maximum open +VIN, 800µA 0.8V, Short Circuit Current: Output 3.3V Output Maximum Capacitive Loading Temperature Coefficient
Output (continued)
Amps average, continuous current Amps average, continuous current 330µF output ±0.02%
Dynamic Characteristics
Dynamic Load Response: (50-100% step VOUT) 3.3V (50-100% step 98.5% VOUT) Start-Up Time: VOUT On/Off VOUT Switching Frequency MTBF: Models Models Models Operating Temperature: (Ambient): Without Derating: With Derating Case Temperature: Maximum Operational Thermal Shutdown Storage Temperature Dimensions Internal Case Connection Case Material 200µsec maximum (3.3V 0.25A) 200µsec maximum 0.25A) 100msec maximum 50msec maximum 260kHz (±25kHz)
Environmental
hours hours hours +60°C +100°C (See Derating Curves) +100°C 101°C minimum, 115°C maximum +120°C
Physical
Mechanical Specifications Case connection Corrosion resistant steel with non-conductive, epoxy-based, black enamel finish plastic baseplate Brass, solder coated, surface-mount leads ounces grams)
Output
VOUT Accuracy: Output 3.3V Output Minimum Load Stability Ripple/Noise (20MHz Line/Load Regulation Efficiency Cross Regulation: Output (5V@1.5A, 3.3V@0.25-2.25A) 3.3V Output (3.3V@2.25A, 5V@0.25-1.5A) Trim Range Isolation Voltage: Input-to-Output Input-to-Case Output-to-Case Isolation Capacitance Isolation Resistance Current Limit Inception: VOUT (3.3V 0.25A) 3.3V VOUT 0.25A) Material ±2.5% maximum ±1.5% maximum load Ordering Guide Ordering Guide Ordering Guide Efficiency Curves Weight
Minimum Loading Specification 250mA
Primary Secondary Insulation Level Operational
Balanced "full-load" 1.5A/3.3V 2.25A. models specified with external 0.47µF ceramic 100µF tantalum output capacitors. Technical Notes/Graphs details. Applying voltage On/Off Control (pin 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. Input Ripple Current tested/specified over 5-20MHz bandwidth with external 22µF input capacitor simulated source impedance 220µF 12µH. Filtering, Input Ripple Current Output Noise details.
±0.5% 1500Vdc minimum 1000Vdc minimum 1000Vdc minimum 560pF 100M 4.7-5.7 Amps 3.3-4 Amps
Series
LTAG
Absolute Maximum Ratings
Input Voltage: Continuous: Models Models Models Transient (100msec): Models Models 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. +VIN +120°C +300°C
models). Once operating, devices will turn until input voltage drops below Undervoltage Shutdown limit (34V models). Subsequent re-start will occur until input brought back Start-Up Threshold. This built hysteresis prevents unstable on/off situations from occurring single input voltage. Input voltages exceeding input overvoltage shutdown specification listed Performance/Functional Specifications will cause device shutdown. built-in hysteresis Volts models will allow converter restart until input voltage sufficiently reduced. Start-Up Time VOUT start-up time interval time where input voltage crosses turn-on threshold point, fully loaded output voltage enters remains within specified accuracy band. Actual measured times will vary with input source impedance, external input/output capacitance, slew rate input voltages. Watt Series implements soft start circuit that limits duty cycle controller power thereby limiting Input Inrush current. On/Off Control VOUT start-up time assumes converter nominal input voltage applied turned On/Off Control pin. specification defines interval between time which converter turned fully loaded output voltage enters remains within specified accuracy band. Similar VOUT start-up, On/Off Control VOUT start-up time also governed internal soft start circuitry external load capacitance. On/Off Control On/Off Control (pin used remote on/off operation. shown Figure control referenced -Input (pin will internally pulled high state. Series designed that enabled when control left open (pulled high) disabled when control pulled (less than +0.8V relative -Input). Dynamic control on/off function best accomplished with mechanical relay open-collector/open-drain circuit (optically isolated appropriate). drive circuit should able sink approximately logic low. on/off control function designed such that converter disabled while input power ramping then "released" once input stabilized.
Input Reverse-Polarity Protection: Models Models Models Output Current On/Off Control (Pin Max. Voltages: Referenced -Input (pin Storage Temperature Lead Temperature (Soldering, sec.)
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.
TECHNICAL NOTES
Isolation Case Connection Series' 3.3V outputs (pins with common return (pin isolated from +VIN -VIN inputs (pins transformer opto-coupled transistor. DC/DC converter's case internally connected This allows circuit specific grounding case either input output side, leaving case disconnected, i.e. "floating." Input Fusing Certain applications and/or safety agencies require installation fuses inputs power conversion components. Fuses should also used possibility sustained, non-current-limited, input-voltage polarity reversal exists. Watt Series Converters, recommended install slow blow fuses with values greater than following, +Input line. Range Models Models Models Fuse Value Amps Amps Amps
+INPUT
CIRCUIT ON/OFF CONTROL CIRCUIT
Input Reverse-Polarity Protection Upon applying reverse-polarity voltage DC/DC converter, internal diode will forward biased, drawing excessive current from power source. Therefore, required that input current limited either appropriately rated input fuse current limited power source. Input Overvoltage/Undervoltage Shutdown Start-Up Threshold Under normal start-up conditions, devices will begin regulate until ramping-up input voltage exceeds Start-Up Threshold Voltage (35V
-INPUT
Figure Internal On/Off Control circuitry
LTAG
DSM/DWR Models
3.3V Regulation Series converters designed such that both 3.3V outputs share common regulation feedback control loop. Though feedback loop influenced both outputs, Volt output dominant. result, Volt regulation (0.5%) superior Volt regulation (1.5%). converters specified load regulation minimum (250mA) 100% loading. models stable under no-load conditions, operation below minimum load mandates increase regulation tolerance ±0.5% Volt output increase Volt output. slight increase switching noise also observed operation below minimum loading. Operation with full load Volt output light load Volt output most demanding regulation. Filtering Noise Reduction Series Converters achieve their rated ripple noise specifications with 0.47µF ceramic parallel with 100µF tantalum output capacitors. critical applications, input/output noise further reduced installing additional external capacitors. Input capacitors should selected bulk capacitance, high rms-ripple-current ratings. Output capacitors should selected appropriate frequency response. caps should have appropriate voltage ratings located close converter possible. Thermal Shutdown These converters equipped with Thermal Shutdown Circuitry. internal temperature DC/DC converter rises above designed operating temperature, precision temperature sensor will power down unit. When internal temperature decreases below threshold temperature sensor, units will self start. Current Limiting When power demands from either output fall within 120% 190% rated output current, DC/DC converter will into current limiting mode. this condition, both output voltages will decrease proportionately with increases output current, thereby maintaining somewhat constant power dissipation. This commonly referred power limiting. Current limit inception defined point where full-power output voltage falls below specified tolerance. load current being drawn from converter significant enough, unit will into short circuit condition. "Short Circuit Condition." Short Circuit Condition
Trimming Output Voltages DSM/DWR converters have trim capability (pin that allow users adjust output voltages ±5%. trim adjustment will cause equal percentage change both outputs. 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 +3.3V Output (pin Figure will decrease output voltages. resistor connected from Trim (pin Output Return (pin will increase output voltages. Trim adjustments greater than have adverse effect converter's performance recommended.
LOAD -INPUT CASE TRIM ON/OFF CONTROL +3.3V OUTPUT OUTPUT RETURN 5-22 Turns +3.3V LOAD
+INPUT
OUTPUT
Figure Trim Connections Using Trimpot
+INPUT -INPUT CASE ON/OFF CONTROL
OUTPUT
LOAD
OUTPUT RETURN
+3.3V LOAD
+3.3V OUTPUT TRIM
TRIM DOWN
RTDOWN
2.49(VO 1.234)
Figure Decrease Output Voltage Trim Connections Using Fixed Resistor
+INPUT -INPUT ON/OFF CONTROL
OUTPUT
LOAD
OUTPUT RETURN
+3.3V LOAD
When converter current limit mode output voltages will drop output current demand increases. output voltage drops low, magnetically coupled voltage used develop primary side voltages will also drop, thereby shutting down controller. Following time-out period milliseconds, will restart, causing output voltages begin ramping their appropriate values. short-circuit condition persists, another shutdown cycle will initiated. This on/off cycling referred "hiccup" mode. hiccup cycling reduces average output current, thereby preventing internal temperatures from rising excessive levels. modules capable enduring indefinite short circuit output condition.
CASE
+3.3V OUTPUT TRIM
TRIM
3.073
Figure Increase Output Voltage Trim Connections Using Fixed Resistor
Accuracy adjustment subject tolerances resistor values factory-adjusted output accuracy. desired output voltage.
Series
LTAG
Recommended Board Layout single board layout could accommodate both through-hole models Series figure below. Note that page this data sheet, through-whole package drawn with bottom view locations, surface-mount package drawn with view locations. shown, through-hole locations, when viewed from top, fall just aside inch centers) locations, which essentially begin inch centers. layout shows +Input Case grounded primary side. Application dependant primary ground could course also connected -Input Case. Creepage clearance distances between input output should comply with relevant safety regulations.
2.00 (50.80) 1.800 (45.72) 0.300 (7.62)
Solder Process models surface-mount models Series, packages' gullwing leads made tin-plated (150 micro inches) copper. gull-wing configuration, opposed leads, selected keep solder joints from under package minimize both, heat conduction away from leads (into encapsulated package) shadowing effects. modules currently withstand standard solder-reflow process with most common temperature profiles. order avoid damage converter selective solder process with following parameters must therefore chosen (i.e. hand soldering method): Pre-heat phase 30-60°C rise/minute 150°C maximum. Lead temperature 300°C seconds maximum.
shown Figure tests have determined optimal landing-pad size mils mils mm).
Case
0.200 (5.08)
1.00 (25.40)
VIEW
0.800 (20.32) 0.200 (10.16)
LENGTH: 0.20 (5.08) DIAMETER: 0.040 ±0.001 (1.016 ±0.025)
CASE ON/OFF CONTROL
TRIM +3.3V OUTPUT OUTPUT RETURN
-INPUT N.C. +INPUT OUTPUT
POWER GROUND
0.100 (2.54) 0.500 (12.70) 0.300 (7.62) VIEW 0.10 (2.54)
0.800 (20.32) 0.200 (5.08)
0.110 (2.79)
0.015 (0.38)
Case C18A
1.00 (25.40)
0.130* (3.30)
0.100** (2.54) 0.160* (4.06)
0.110** (2.79)
DIMENSION LEAD DIMENSION
Through-Hole Number Function +Input -Input On/Off Control Case Output N.C. Output Return +3.3V Output Trim
Figure Board Land Pattern
Figure Recommended Board Layout
LTAG
DSM/DWR Models
Typical Performance Curves Models
DSM-5/2.65-3.3/3-D12 Typical VOUT Efficiency Load (+5V 250mA)
Models
DSM-5/2.65-3.3/3-D24 Typical VOUT Efficiency Load (+5V 250mA)
Efficiency
Efficiency
+3.3V Output Current (Amps)
+3.3V Output Current (Amps)
DSM-5/2.65-3.3/3-D12 Typical VOUT Efficiency Load (+3.3V 250mA)
DSM-5/2.65-3.3/3-D24 Typical VOUT Efficiency Load (+3.3V 250mA)
Efficiency
Efficiency
Output Current (Amps) DSM-5/2.65-3.3/3-D12 Efficiency Line Load Efficiency Efficiency
VOUT 5V@2.65A/3.3V@0.25A
Output Current (Amps) DSM-5/2.65-3.3/3-D24 Efficiency Line Load
VOUT 5V@2.65A/3.3V@0.25A
VOUT 5V@1.5A/3.3V@2.25A
VOUT 5V@1.5A/3.3V@2.25A
VOUT 5V@0.25A/3.3V@3A
VOUT 5V@0.25A/3.3V@3A
10.89 11.78 12.67 13.56 14.44 15.33 16.22 17.11 Input Voltage (Volts)
Input Voltage (Volts)
Series
LTAG
Typical Performance Curves Models
DSM-5/2.65-3.3/3-D48 Typical VOUT Efficiency Load (+5V 250mA)
D12, Models
Output Power Ambient Temperature Nominal, Natural Convection
Output Power (Watts)
Efficiency
Ambient Temperature (°C)
+3.3V Output Current (Amps)
Start-Up from
DSM-5/2.65-3.3/3-D48 Typical VOUT Efficiency Load (+3.3V 250mA)
(VIN nominal, 1.5A/3.3V 2.25A, 0.47µF 100µF tantalum output capacitors.)
Efficiency
5VOUT
3.3VOUT
2msec/div
Output Current (Amps)
DSM-5/2.65-3.3/3-D48 Efficiency Line Load Efficiency
VOUT 5V@2.65A/3.3V@0.25A
VOUT 5V@1.5A/3.3V@2.25A
VOUT 5V@0.25A/3.3V@3A
40.3 44.7 53.3 57.7 66.3 70.7 Input Voltage (Volts)
LTAG
Models
INNOVATION EXCELLENCE
9001 REGISTERED
DS-0503A
2/03
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.

INNOVATION EXCELLENCE Dual Output Mixed Voltage, DSM/DWR Mod

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