ETC1 DSM-5-3.3-D48S Dual output mixed voltage, dsm model Datasheet

®
®
PRELIMINARY
INNOVATION and EXCELLENCE
Dual Output
Mixed Voltage, DSM Models
Surface-Mount, 3.3V and 5V
15Watt, DC/DC Converters
Features
■
Regulated 5V and 3.3V outputs
■
5V @ 2.65Amps/3.3V @ 3 Amps capability
■
15 Watts total output power
■
Small 1" x 2" x 0.52" SMT package
■
Available input voltage ranges:
10-18V, 18-36V or 36-75V
■
No-load stable operation
■
UL1950 and EN60950 safety approvals
■
mark available (75V-input models)
■
Continuous short-circuit protection
■
Fully isolated, 1500Vdc guaranteed
■
–40 to +100°C operating temperature
■
Input under and overvoltage shutdown
■
Output OVP, thermal shutdown
For surface-mount applications requiring 15 Watts of power from 5V and 3.3V,
DATEL offers a new power sharing DC/DC converter capable of meeting your
output current requirements. The DSM-5/2.65-3.3/3-D48 (36-75V input), DSM5/2.65-3.3/3-D24 (18-36V input) and DSM-5/2.65-3.3/3-D12 (10-18V input) are fully
isolated DC/DC converters capable of delivering any combination of 5V and 3.3V
output current up to a combined total of 15 Watts of output power.
Housed in a 1" x 2" x 0.52" metal, surface-mount package coated with
electrically non-conductive finish, these converters are regulated by a 3.3V control
loop that provides load regulation of ±0.5% for 3.3V output and ±2% for 5V
output. All models include input Pi filtering, input overvoltage and undervoltage
shutdown circuitry, output overvoltage protection, output short-circuit and currentlimiting protection, and thermal shutdown. All models provide trim capability and
an on/off control function or sync control. Fully synchronous output rectification
provides high efficiency (86%) and a stable output under no-load conditions.
DSM power sharing modules offer low output ripple and noise performance, 1500 Vdc isolation voltage, and are fully specified for –40 to +100°C
operation. These devices meet IEC950, UL1950 and EN6950 safety standards; CB reports are available on request. "D48" models are CE marked
(meets LVD requirements).
+5V OUTPUT
+INPUT
SWITCH
CONTROL
+3.3V OUTPUT
–INPUT
OUTPUT
RETURN
ON/OFF
CONTROL
(SYNC)
PWM
CONTROLLER
OPTO
ISOLATION
UV & OV
COMPARATORS
REFERENCE &
ERROR AMP
THERMAL
SHUTDOWN
TRIM
Figure 1. Simplified Schematic
DATEL, Inc., Mansfield, MA 02048 (USA) · Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 · Email: [email protected] · Internet: www.datel.com
1 5 W, D UA L O U T P U T, M I X E D - VO LTAG E D C / D C C O N V E R T E R S
XWR Series
Performance Specifications and Ordering Guide
Model
➀
Output
R/N (mVp-p) ➂
Input
Regulation (Max.)
VOUT
(Volts)
IOUT ➁
(Amps)
Typ.
Max.
Line
Load ➃
5
2.65
40
75
±1%
±2%
3.3
3
60
100
±0.5%
±0.5%
DSM-5/2.65-3.3/3-D12
DSM-5/2.65-3.3/3-D24
DSM-5/2.65-3.3/3-D48
5
2.65
40
75
±1%
±2%
3.3
3
60
100
±0.5%
±0.5%
5
2.65
40
75
±1%
±2%
3.3
3
60
100
±0.5%
±0.5%
➀ Typical at TA = +25°C under nominal line voltage and balanced "full-load" conditions (5V @ 1.5A/3.3V @ 2.25A).
➁ Any combination of 5V/3.3V rated IOUT current, not to exceed 15 Watts of output power. (See derating graphs.)
➂ Ripple/Noise (R/N) measured over a 20MHz bandwidth. All models are specified with 0.47µF ceramic
in parallel with 100µF tantalum output capacitors.
VIN Nom.
(Volts)
Range
(Volts)
IIN ➄
(mA)
Min.
Typ.
Package
(Case,
Pinout)
12
10-18
70/1450
83%
86%
C18A, P36
24
18-36
40/720
83%
86%
C18A, P36
48
36-75
20/360
83%
86%
C18A, P36
Efficiency
➃ Tested from 10% to 100% full load (other output at 10% full load).
➄ Nominal line voltage, no load/balanced full-power condition.
PA R T N U M B E R S T R U C T U R E
DSM - 5 / 2.65 - 3.3 / 3 - D48 S
Dual Output/
Surface-Mount Series
Part Number Suffixes
Add "S" suffix as desired
Input Voltage Range:
D12 = 10-18 Volts (12V nominal)
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)
V1 Nominal Output Voltage:
5 Volts
I1 Maximum Output Current:
2.65 Amps
DSM 15 Watt DC/DC's are designed so an On/Off Control function
with either positive polarity (no suffix), or a Sync function ("S" suffix)
can be added in the pin 3 position.
No Suffix On/Off Control function (positive polarity) on pin 3
S
Sync function on pin 3
I2 Maximum Output Current:
3 Amps
V2 Nominal Output Voltage:
3.3 Volts
MEC
A N I C A L S P E C I FI C A T I O N S
0.100
(2.54)
0.110
(2.79)
4
3
0.500
(12.70)
2
9
8
Case C18A
0.300
(7.62)
7
6
0.800
(20.32)
4 EQ. SP. @
0.200 (5.08)
1.00
(25.40)
5
1
TOP VIEW
2.00
(50.80)
0.50
(12.70)
METAL
CASE
0.10
(2.54)
0.110
(2.79)
0.020
(0.51)
0.015
(0.38)
INSULATED BASE
0.055
(1.40)
2
I/O Connections
Pin
1
2
3
4
5
6
7
8
9
Function P36
+Input
–Input
On/Off Control
Case
+5V Output
NC
Output Output
+3.3V Output
Trim
DSM Models
1 5 W, D UA L O U T P U T, M I X E D - VO LTAG E D C / D C C O N V E R T E R S
Performance/Functional Specifications
Output (continued)
Typical @ TA = +25°C under nominal line voltage, balanced "full-load" conditions, unless noted. ➀
Isolation Capacitance
470pF
Input
Isolation Resistance
100MΩ
Current Limit Inception:
5V @ 95% VOUT (3.3V @ 0.25A)
3.3V @ 98.5% VOUT (5V @ 0.25A)
4-5.5 Amps
3-4 Amps
Short Circuit Current:
5V Output
3.3V Output
5.5 Amps average, continuous current
3 Amps average, continuous current
Overvoltage Protection:
5V Output
3.3V Output
Magnetic feedback
TBD Volts
TBD Volts
Input Voltage Range:
D12 Models
D24 Models
D48 Models
10-18 Volts (12V nominal)
18-36 Volts (24V nominal)
36-75 Volts (48V nominal)
Overvoltage Shutdown:
D12 Models
D24 Models
D48 Models
19-23 Volts (21V nominal)
37-42 Volts (40V typical)
77-81 Volts (78.5V typical)
Start-Up Threshold:
D12 Models
D24 Models
D48 Models
9-10 Volts (9.3V typical)
16.5-18 Volts (17V typical)
34-36 Volts (35V typical)
Undervoltage Shutdown:
D12 Models
D24 Models
D48 Models
Maximum Capacitive Loading:
D12 Models
D24 Models
D48 Models
TBD µF (5V)
TBD µF (5V)
TBD µF (5V)
7.0-8.5 Volts (8V typical)
16-17 Volts (16.5V typical)
32.5-35.5 Volts (34.5V typical)
Temperature Coefficient
±0.02% per °C
Input Current:
Normal Operating Conditions
Standby Mode:
Off, OV, UV, Thermal Shutdown
Dynamic Characteristics
See Ordering Guide
10mA
Input Reflected Ripple Current:
Source Impedance
D12 Models
D24/D48 Models
<0.1Ω, no external input filtering
TBD
TBD
Internal Input Filter Type
Capacitive (1.5µF)
Reverse-Polarity Protection:
D12 Models
D24 Models
D48 Models
1 minute duration, 4A maximum
1 minute duration, 2A maximum
1 minute duration, 1A maximum
On/Off Control: (Pin 3): ➂ ➃ ➅
Dynamic Load Response: ➁
5V (50-100% step to 97.5% VOUT)
3.3V (50-100% step to 98.5% VOUT)
300µsec maximum (3.3V @ 0.25A)
300µsec maximum (5V @ 0.25A)
Start-Up Time:
VIN to VOUT
On/Off to VOUT
10msec maximum
TBD msec maximum
Switching Frequency
250kHz (±25kHz)
Environmental
On = open or 13V - +VIN,
IIN @ 13V = 800µA
Off = 0-0.8V, IIN @ 0V = 1mA
Sync: (Option, Pin 4): ➂ ➃
Input Threshold (Rising Edge Active)
Input Voltage Low
Input Voltage High
Input Resistance
Output High Voltage (100µA load)
Output Drive Current
Input/Output Pulse Width
TBD µF (3.3V)
TBD µF (3.3V)
TBD µF (3.3V)
1-2.7 Volts
0-0.9 Volts
2.8-5 Volts
35kΩ minimum
3.5-4.8 Volts
35mA
160-360nsec
MTBF: ➆
D12 Models
D24 Models
D48 Models
TBD hours
TBD hours
TBD hours
Operating Temperature: (Ambient): ➁
Without Derating:
With Derating
+60°C
To +100°C (See Derating Curves)
Case Temperature:
Maximum Operational
For Thermal Shutdown
+100°C
TBD °C minimum, TBD°C maximum
Storage Temperature
–40 to +120°C
Physical
Dimensions
2" x 1" x 0.52" (50.8 x 25.4 x 13.2mm)
Internal Case Connection
Case connection via pin 4
Case Material
Corrosion resistant steel with
non-conductive, epoxy-based, black
enamel finish and plastic baseplate
Output
VOUT Accuracy:
5V Output
3.3V Output
±2% maximum
±1.5% maximum
Pin Material
Brass, solder coated, surface-mount leads
Weight TBD ounces
1.4 ounces (39.7 grams)
Minimum Loading Per Specification
250mA
Primary to Secondary Insulation Level Operational
Minimum Load For Stability
No load
Ripple/Noise (20MHz BW) ➄
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efficiency
See Ordering Guide / Efficiency Curves
Cross Regulation:
5V Output
([email protected], [email protected])
3.3V Output
([email protected], [email protected])
TBD
Trim Range ➁
±5%
Isolation Voltage:
Input-to-Output
Input-to-Case
Output-to-Case
1500Vdc minimum
TBD Vdc minimum
TBD Vdc minimum
➀ Balanced "full-load" is 5V @ 1.5A/3.3V @ 2.25A. All models are specified with external
0.47µF ceramic and 100µF tantalum output capacitors.
➁ See Technical Notes/Graphs for details.
➂ The On/Off Control function can be replaced with a Sync function. See Part Number
Suffixes and Technical Notes for details.
➃ Applying a voltage to On/Off Control (pin 3) when no input power is applied to the
converter can cause permanent damage.
➄ Output noise may be further reduced with the installation of additional external output
capacitors. See Technical Notes.
➅ On/Off control is designed to be driven with open collector or by appropriate voltage
levels. Voltages must be referenced to the –Input (Pin 2).
➆ Demonstrated MTBF available on request.
➇ For conditions with less than minimum loading, outputs remain stable. However, regulation
performance will degrade.
TBD
3
1 5 W, D UA L O U T P U T, M I X E D - VO LTAG E D C / D C C O N V E R T E R S
XWR Series
Absolute Maximum Ratings
1
Input Voltage:
Continuous:
+5V OUTPUT
+INPUT
D12 Models
D24 Models
D48 Models
Transient (100msec): D12 Models
D24 Models
D48 Models
23 Volts
42 Volts
81 Volts
25 Volts
50 Volts
100 Volts
Input Reverse-Polarity Protection: ➁
D12 Models
D24 Models
D48 Models
Output Current ➁
+5V LOAD
2
OUTPUT
RETURN
–INPUT
3
5
ON/OFF
CONTROL
7
+3.3V LOAD
4
+3.3V OUTPUT
8
CASE
TRIM
Input Current must be limited. 1 minute
duration. Fusing recommended.
4 Amps
2 Amps
2 Amps
RTDOWN (kΩ) =
Current limited. Devices can withstand
an indefinite output short circuit.
On/Off Control (Pin 3) Max. Voltages:
Referenced to –Input (pin 2)
No Suffix
S Suffix
+VIN
+5.7 Volts
Storage Temperature
–40 to +120°C
Lead Temperature (Soldering, 10 sec.)
+300°C
9
R TRIM
DOWN
2.49(VO – 1.234)
3.3 – VO
–16.9
Figure 3. Decrease Output Voltage Trim Connections
Using A Fixed Resistor
1
+5V OUTPUT
+INPUT
5
+5V LOAD
2
OUTPUT
RETURN
–INPUT
These are stress ratings. Exposure of devices to any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the
Performance/Functional Specifications Table is not implied, nor recommended.
3
ON/OFF
CONTROL
7
+3.3V LOAD
4
+3.3V OUTPUT
8
CASE
TRIM
9
R TRIM
UP
TECHNICAL NOTES
Figure 4. Increase Output Voltage Trim Connections
Using A Fixed Resistor
Trimming Output Voltages
The DSM converters have a trim capability (Pin 9) that allow users to
adjust the output voltages ±5%. A trim adjustment will cause an equal
percentage of change in both outputs. Adjustments to the output voltages
can be accomplished via a trim pot, Figure 2, or a single fixed resistor as
shown in Figures 3 and 4. A single fixed resistor can increase or decrease
the output voltage depending on its connection. Fixed resistors should have
absolute TCR's less than 100ppm/°C to minimize sensitivity to changes in
temperature.
RT UP (kΩ) =
Output Power vs. Ambient Temperature
VIN = Nominal, Natural Convection Air flow
16
14
Trim adjustments greater than 5% can have an adverse effect on the converter's performance and is not recommended.
5
+5V LOAD
2
–INPUT
3
+5V OUTPUT
12
Output Power (Watts)
+INPUT
OUTPUT
RETURN
ON/OFF
CONTROL
4
+3.3V OUTPUT
20kΩ
5-22
Turns
8
6
2
+3.3V LOAD
0
–40
CASE
TRIM
10
4
7
8
–16.9
Accuracy of adjustment is subject to tolerances or resistor values
and factory-adjusted output accuracy.
VO = desired output voltage.
A single resistor connected from the Trim pin (Pin 9) to the +3.3V Output
(Pin 8), see Figure 3, will decrease the output voltages. A resistor connected
from the Trim pin (Pin 9) to Output Return (Pin 7) will increase the output
voltages.
1
3.073
VO – 3.3
9
0
25
30
35
40
45
50
55
60
65
70
Ambient Temperature (˚C)
Figure 2. Trim Connections Using A Trimpot
4
75
80
85
90
95 100
DSM Models
1 5 W, D UA L O U T P U T, M I X E D - VO LTAG E D C / D C C O N V E R T E R S
Typical Performance Curves
D12 Models
D24 Models
DSM-5/2.65-3.3/3-D24 - Typical 3.3 VOUT Efficiency vs. Load
(+5V @ 250mA)
DSM-5/2.65-3.3/3-D12 - Typical 3.3 VOUT Efficiency vs. Load
(+5V @ 250mA)
90
90
VIN = 18V
85
85
80
80
Efficiency (%)
Efficiency (%)
VIN = 10V
VIN = 12V
75
VIN = 18V
VIN = 24V
75
VIN = 36V
70
70
65
65
60
60
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
0.3
3
0.6
0.9
DSM-5/2.65-3.3/3-D12 - Typical 5 VOUT Efficiency vs. Load
(+3.3V @ 250mA)
1.8
2.1
2.4
2.7
3
90
VIN = 10V
VIN = 18V
85
85
80
Efficiency (%)
Efficiency (%)
1.5
DSM-5/2.65-3.3/3-D24 - Typical 5 VOUT Efficiency vs. Load
(+3.3V @ 250mA)
90
VIN = 12V
75
VIN = 18V
70
65
80
VIN = 24V
75
VIN = 36V
70
65
60
60
0.3
0.5
0.8
1.1
1.3
1.6
1.9
2.1
2.4
2.7
0.3
0.5
0.8
+5V Output Current (Amps)
1.1
1.3
1.6
1.9
2.1
2.4
2.7
34
36
+5V Output Current (Amps)
DSM-5/2.65-3.3/3-D24 - Efficiency vs. Line and Load
DSM-5/2.65-3.3/3-D12 - Efficiency vs. Line and Load
88
88
87
87
86
86
Efficiency (%)
Efficiency (%)
1.2
+3.3V Output Current (Amps)
+3.3V Output Current (Amps)
85
84
VOUT = [email protected]/[email protected]
83
85
84
VOUT = [email protected]/[email protected]
83
VOUT = [email protected]/[email protected]
VOUT = [email protected]/[email protected]
82
82
VOUT = [email protected]/3.3V@3A
VOUT = [email protected]/3.3V@3A
81
81
80
80
10
10.89
11.78
12.67
13.56
14.44
15.33
16.22
17.11
18
18
20
22
24
26
28
30
Input Voltage (Volts)
Input Voltage (Volts)
5
32
1 5 W, D UA L O U T P U T, M I X E D - VO LTAG E D C / D C C O N V E R T E R S
XWR Series
Typical Performance Curves
D48 Models
D12, 24, 48 Models
DSM-5/2.65-3.3/3-D48 - Typical 3.3 VOUT Efficiency vs. Load
(+5V @ 250mA)
Start-Up from VIN
(VIN = nominal, 5V @ 1.5A/3.3V @ 2.25A,
0.47µF  100µF tantalum output capacitors.)
90
VIN = 36V
85
Efficiency (%)
VIN
80
75
5VOUT
VIN = 60V
VIN = 75V
VIN = 48V
70
3.3VOUT
65
60
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
3
+3.3V Output Current (Amps)
2msec/div
DSM-5/2.65-3.3/3-D48 - Typical 5 VOUT Efficiency vs. Load
(+3.3V @ 250mA)
90
VIN = 36V
Efficiency (%)
85
80
VIN = 60V
75
VIN = 75V
VIN = 48V
70
65
60
0.3
0.5
0.8
1.1
1.3
1.6
1.9
2.1
2.4
2.7
70.7
75
+5V Output Current (Amps)
DSM-5/2.65-3.3/3-D48 - Efficiency vs. Line and Load
88
87
Efficiency (%)
86
85
84
VOUT = [email protected]/[email protected]
83
VOUT = [email protected]/[email protected]
82
VOUT = [email protected]/3.3V@3A
81
80
36
40.3
44.7
49
53.3
57.7
62
Input Voltage (Volts)
66.3
1 5 W, D UA L O U T P U T, M I X E D - VO LTAG E D C / D C C O N V E R T E R S
®
DSM Models
®
INNOVATION and EXCELLENCE
ISO 9001 REGISTERED
DS-0491
1/01
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444
DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 01-34-60-01-01
DATEL GmbH München, Germany Tel: 89-544334-0
DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-6354-2025
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
Internet: www.datel.com
Email: [email protected]
DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do
not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.
7
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