®
®
INNOVATION and EXCELLENCE
Dual Output
Mixed Voltage, DLV Models
Output Combinations of 3.3V, 2.5V and 1.8V
30 Watt, DC/DC Converters
PRELIMINARY
Features
I
Two independently regulated outputs:
3.3V @ 6A, 2.5V @ 7A or 1.8V @7A
30 Watts total output power
Available input voltage ranges:
10-18V, 18-36V or 36-75V
Independent output voltage adjustment
Remote On/Off Control and Sync pins
Synchronous rectifier; No load operation
2" x 2" package; Industry standard pinout
IEC950/UL1950/EN60950 certified
CE mark available (75V
IN
models)
Input under and overvoltage shutdown
Output overvoltage protection
Thermal shutdown
Fully Isolated (1500Vdc)
I
I
I
I
I
I
I
I
I
I
I
I
The DLV (Dual Low Voltage) Series from DATEL provides both digital I/O and
core logic supply voltages from a single 2" x 2" industry-standard pinout, plastic
package. The DLV-3.3/6-2.5/7 provides 3.3V @ 6 Amps and 2.5V @ 7 Amps, the
DLV-3.3/6-1.8/7 provides 3.3V @ 6 Amps and 1.8V @ 7 Amps, and the DLV-2.5/7-
2.5/7 provides 2.5V @ 7 Amps and 1.8V @ 7 Amps. All models are available with
input ranges of 10 to 18V (-D12), 18 to 36V (-D24) or 36 to 75V (-D48).
Plug-in compatibility with a number of converters from other leading manufactur-
ers is possible because DATEL offers these 30 Watt converters with the flexibility
to add/remove the sync (pin 3) and higher-voltage trim (pin 5). Each output is
independently regulated with its own control loop to provide ±1.0% line and load
regulation. Fully synchronous output topology allows no load operation and high
efficiencies. Models are available with either positive or negative on/off control and
independent output voltage adjustment. "I" suffix models offer independent, "higher-
voltage" on/off control for proper power sequencing of core and I/O voltages. Both
outputs are internally synchronized to eliminate asynchronous beat frequencies.
All models include input Pi filtering, input overvoltage and undervoltage shut-
down circuitry, output overvoltage protection, output short-circuit and current limit-
ing protection and thermal shutdown. These devices meet IEC950, UL1950 and
EN6950 safety standards. CB reports are available on request. "-D48" models are
CE marked (meet LVD requirements).
+INPUT
V1 OUTPUT
–INPUT
SWITCH
CONTROL
OUTPUT
RETURN
INPUT UNDERVOLTAGE
AND OVERVOLTAGE
COMPARATORS
ON/OFF
CONTROL
SYNC
(OPTION)
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
V1 TRIM
(OPTION)
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
V2 TRIM
V2 OUTPUT
SWITCH
CONTROL
Figure 1. Simplified Schematic
DATEL, Inc., Mansfield, MA 02048 (USA) · Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 · Email: sales@datel.com · Internet: www.datel.com
DLV Series
3 0 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
➀
Input
Regulation (Max.)
Line
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
Performance Specifications and Ordering Guide
V
OUT
(Volts)
2.5
1.8
2.5
1.8
2.5
1.8
3.3
1.8
3.3
1.8
3.3
1.8
3.3
2.5
3.3
2.5
3.3
2.5
Model
DLV-2.5/7-1.8/7-D12
DLV-2.5/7-1.8/7-D24
DLV-2.5/7-1.8/7-D48
DLV-3.3/6-1.8/7-D12
DLV-3.3/6-1.8/7-D24
DLV-3.3/6-1.8/7-D48
DLV-3.3/6-2.5/7-D12
DLV-3.3/6-2.5/7-D24
DLV-3.3/6-2.5/7-D48
I
OUT
➁
(Amps)
7
7
7
7
7
7
6
7
6
7
6
7
6
7
6
7
6
7
Output
R/N (mVp-p)
➂
Typ.
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
Max.
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Load
➃
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
±1%
V
IN
Nom.
(Volts)
12
24
48
12
24
48
12
24
48
Range
(Volts)
10-18
18-36
36-75
10-18
18-36
36-75
10-18
18-36
36-75
I
IN
➄
(mA)
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Efficiency
Min.
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Typ.
83%
83%
83%
83%
83%
83%
85%
85%
85%
Package
(Case,
Pinout)
C26, P48
C26, P48
C26, P48
C26, P47
C26, P47
C26, P47
C26, P40
C26, P40
C26, P40
➀
Typical at T
A
= +25°C under nominal line voltage and "balanced," full-power
conditions: 3.3V @ 4.5A/2.5V @ 6A; 3.3V @ 5.2A/1.8V @ 7A; 2.5V @ 7A/1.8V @ 7A.
➁
Any combination of rated I
OUT
current, not to exceed 30 Watts of output power.
(See derating graphs.)
PA R T N U M B E R S T R U C T U R E
➂
Ripple/Noise (R/N) measured over a 20MHz bandwidth. All models are specicfied with
TBD ceramic capacitors.
➃
Tested from no load to 100% load (other output at no load).
➄
Nominal line voltage, no load/balanced full-power condition.
Part Number Suffixes
Standard DLV DC/DC’s provide a Trim function (Pin 9) for the lower
of the two output voltages. A Trim pin (Pin 5) for the higher voltage can
be added by indicating a "T" suffix. A Sync pin can also be added and
is indicated by an "S" suffix. An "N" suffix indicates that the On/Off
Control function incorporates negative polarity logic. An "I" suffix provides
independent on/off control (Pin 4) for the higher output voltage.
No Suffix
Pins 3 & 5 not installed, positive polarity On/Off Control
T Suffix
Pin 5 added for higher voltage Trim option
S Suffix
Pin 3 added for Sync Option
N Suffix
Negative polarity On/Off Control
I Suffix
Pin 4 independent on/off control of Pin 6 output voltage
DLV
-
3.3
/
6
-
2.5
/
7
-
D48 T S N I
Dual Low Voltage/
Mixed-Voltage Series
V
1
Nominal Output Voltage
I
1
Maximum Output Current
V
2
Nominal Output Voltage
Add T, S, N and I suffixes
as desired
Input Voltage Range:
D12
= 10-18 Volts (12V nominal)
D24
= 18-36 Volts (24V nominal)
D48
= 36-75 Volts (48V nominal)
I
2
Maximum Output Current
See page 5 for ordering information.
MEC
A N I C A L S P E C I FI C A T I O N S
2.00
(50.08)
PLASTIC CASE
0.48
(12.19)
Case C26
0.040 ±0.001 DIA.
(1.016 ±0.025)
0.20 MIN
(5.08)
1.800
(45.72)
0.10
(2.54)
STANDOFF
0.020 (0.51)
I/O Connections
Pin
1
2
3
4
5
6
7
8
9
Function P40
+Input
–Input
Sync*
On/Off Control
+3.3V Trim*
+3.3V Output
Output Return
+2.5V Output
+2.5V Trim
* Optional pins
Function P47
+Input
–Input
Sync*
On/Off Control
+3.3V Trim*
+3.3V Output
Output Return
+1.8V Output
+1.8V Trim
Function P48
+Input
–Input
Sync*
On/Off Control
+2.5V Trim*
+2.5V Output
Output Return
+1.8V Output
+1.8V Trim
5
6
7
1
0.600
(15.24)
3 EQ. SP. @
0.200 (5.08)
2
3
4
0.10
(2.54)
8
9
1.400
1.200
(35.56)
(30.48)
3 EQ. SP. @
0.400 (10.16)
2.00
(50.08)
0.40
(10.16)
BOTTOM VIEW
2
3 0 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
DLV Models
Output (continued)
Performance/Functional Specifications
Typical @ T
A
= +25°C under nominal line voltage, balanced "full-load" conditions, unless noted.
➀
Isolation Resistance
Current Limit Inception:
2.5/1.8V Models
2.5V @ 98%V
OUT
1.8V @ 98%V
OUT
3.3/1.8V Models
3.3V @ 98.5%V
OUT
1.8V @ 98%V
OUT
3.3V/2.5V Models
3.3V @ 98.5%V
OUT
2.5V @ 98%V
OUT
Short Circuit Current:
3.3V Outputs
2.5V Outputs
1.8V Outputs
Overvoltage Protection:
2.5/1.8V Models
3.3/1.8V Models
3.3/2.5V Models
Maximum Capacitive Loading
2.5/1.8V Models
3.3/1.8V Models
3.3/2.5V Models
Temperature Coefficient
100MΩ
Input
Input Voltage Range:
D12 Models
D24 Models
D48 Models
Overvoltage Shutdown:
D12 Models
D24 Models
D48 Models
Start-Up Threshold:
D12 Models
D24 Models
D48 Models
Undervoltage Shutdown:
D12 Models
D24 Models
D48 Models
Input Current:
Normal Operating Conditions
Standby Mode:
Off, OV, UV, Thermal Shutdown
Input Reflected Ripple Current:
Source Impedance
D12 Models
D24 Models
D48 Models
Internal Input Filter Type
Reverse-Polarity Protection:
D12 Models
D24 Models
D48 Models
On/Off Control
(Pin 4):
➂ ➃ ➅
D12, D24, D48 Models
10-18 Volts (12V nominal)
18-36 Volts (24V nominal)
36-75 Volts (48V nominal)
19-23 Volts (21V nominal)
37-42 Volts (40V nominal)
77-81 Volts (79V nominal)
9-10 Volts (9.3V nominal)
16.5-18 Volts (17V nominal)
34.5-36 Volts (35V nominal)
8.5-9.6 Volts (9.3V nominal)
16-17 Volts (16.5V nominal)
33-35 Volts (34V nominal)
See Ordering Guide
10mA typical
TBD Amps
TBD Amps
TBD Amps
TBD Amps
TBD Amps
TBD Amps
TBD Amps average, continuous
TBD Amps average, continuous
TBD Amps average, continuous
Comparator, magnetic feedback
TBD/TBD
TBD/TBD
TBD/TBD
TBD/TBDµF
TBD/TBDµF
TBD/TBDµF
±0.02% per °C
TBD
TBD
TBD
Pi (0.039µF - 2.2µH - TBD)
TBD minute duration, 6A maximum
TBD minute duration, 4A maximum
TBD minute duration, 2A maximum
On = open or TBD to +V
IN
,
I
IN
= TBDµA @ TBDV
Off = 0-0.8V, I
IN
= TBD @ 0V
On = 0-0.8V, I
IN
= TBD @ 0V
Off = open or TBD to +5.5V
I
IN
= TBDµA @ TBDV
1-2.7 Volts
0-0.9 Volts
2.8-5 Volts
35kΩ minimum
3.5-4.8 Volts
35mA
160-360nsec
Dynamic Characteristics
Dynamic Load Response:
2.5/1.8V Models
2.5V (50-100% step to 1.5%V
OUT
)
1.8V (50-100% step to 2%V
OUT
)
3.3/1.8V Models
3.3V (50-100% step to 1%V
OUT
)
1.8V (50-100% step to 2%V
OUT
)
3.3V/2.5V Models
3.3V (50-100% step to 1%V
OUT
)
2.5V (50-100% step to 1.5%V
OUT
)
Start-Up Time:
V
IN
to V
OUT
On/Off to V
OUT
Switching Frequency
MTBF
D12 Models
D24 Models
D48 Models
Operating Temperature
(Ambient):
Without Derating:
2.5/1.8V Models
D12 Model
D24 Model
D48 Model
3.3/1.8V Models
D12 Model
D24 Model
D48 Model
3.3V/2.5V Models
D12 Model
D24 Model
D48 Model
With Derating
Case Temperature:
Maximum Operational
For Thermal Shutdown
Storage Temperature
TBD µsec maximum
TBD µsec maximum
TBD µsec maximum
TBD µsec maximum
TBD µsec maximum
TBD µsec maximum
TBD
TBD
225kHz (±TBD kHz)
D12N, D24N, D48N Models
Sync
(Option, Pin 3):
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
V
OUT
Accuracy
2.5V/1.8V Models
3.3V/1.8V Models
3.3V/2.5V Models
Minimum Loading Per Specification
Ripple/Noise
(20MHz BW)
Line/Load Regulation
Efficiency
Trim Range
➇
Isolation Voltage:
Input-to-Output
Isolation Capacitance
Isolation Resistance
Environmental
TBD hours
TBD hours
TBD hours
Output
1.5% / 2% maximum
1% / 2% maximum
1% / 1.5% maximum
No load
See Ordering Guide
See Ordering Guide
See Ordering Guide/Efficiency Curves
±5% each output
1500Vdc
470pF
100MΩ
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
To +100°C (See Derating Curves)
+100°C
TBD minimum, TBD maximum
–40 to +120°C
3
DLV Series
3 0 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
Physical
Dimensions
Case Material
Pin Material
Weight:
2" x 2" x 0.5" (50.8 x 50.8 x 12.7mm)
Diallyl phthalate, UL94V-0 rated
Brass, solder coated
TBD
TECHNICAL NOTES
Trimming Output Voltages
These DLV converters have a trim capability (pins 9 & 5) that allow users
to independently adjust the output voltages ±5%. (Note: pin 5 is an option,
see ordering information.) Adjustments to the output voltages can be accom-
plished 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.
A single resistor connected from the Trim pin 9 to +Output (pin 8), see Figure
3, will decrease the lower output voltage. A resistor connected from Trim pin 9
to Output Return (pin 7) will increase the lower output voltage. See Figure 4.
Similarly, the higher output voltage can be adjusted using a single resistor
connected from the Trim (pin 5) to +Output (pin 6) or to Output Return (pin
7). See Figures 3 and 4.
Primary to Secondary Insulation Level
Operational
➀
All models are specified with external TBD ceramic output capacitors.
➁
See Technical Notes/Graphs for details.
➂
Devices may be order with opposite polarity. Sync pin available with "S" suffix. See Part
Number Suffixes and Technical Notes for details.
➃
Applying a voltage to On/Off Control (pin 4) or the Sync (pin 3) when no input power is
applied to the converter may 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
Trim function for the higher of two voltages available with "T" suffix. See Part
Number Suffixes and Technical Notes for details.
Absolute Maximum Ratings
Input Voltage:
Continuous:
+3.3V TRIM *
5
6
20kΩ
5-22
TURNS
OUTPUT
RETURN
3
SYNC *
8
4
ON/OFF
CONTROL
+2.5V OUTPUT
+2.5V TRIM
9
* OPTIONAL PIN
7
20kΩ
5-22
TURNS
+2.5V
LOAD
+3.3V
LOAD
D12 Models
D2A Models
D48 Models
Transient (100msec): D12 Models
D24 Models
D48 Models
23 Volts
42 Volts
81 Volts
25 Volts
50 Volts
100 Volts
Input Current must be limited. TBD
minute duration. Fusing recommended.
6 Amps
4 Amps
2 Amps
Current limited. Devices can withstand
an indefinite output short circuit.
1
+INPUT
+3.3V OUTPUT
2
–INPUT
Input Reverse-Polarity Protection
➁
D12A Models
D24A Models
D48A Models
Output Current
➁
On/Off Control (Pin 4) Max. Voltages
Referenced to –Input (pin 2)
No Suffix
"N" Suffix
Sync Control (Pin 3) Max. Voltages
"S" Suffix
Storage Temperature
Lead Temperature
(Soldering, 10 sec.)
Figure 2. Trim Connections Using A Trim Pot
+V
IN
+8 Volts
+5.7 Volts
–40 to +120°C
+300°C
+3.3V TRIM *
1
+INPUT
+3.3V OUTPUT
5
6
R
TRIM DOWN
2
–INPUT
OUTPUT
RETURN
7
+3.3V
LOAD
3
SYNC *
8
4
ON/OFF
CONTROL
+2.5V OUTPUT
+2.5V TRIM
9
R
TRIM DOWN
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.
+2.5V
LOAD
* OPTIONAL PIN
Figure 3. Trim Connections To Decrease Output Voltages Using Fixed Resistors
3.3 Volt Trim Down
R
T
DOWN
(kΩ) =
O
O
2.5 Volt Trim Down
R
T
DOWN
(kΩ) =
O
O
1.8 Volt Trim Down
R
T
DOWN
(kΩ) =
O
O
4
L
N
L
1.73(V – 0.86)
N
1.8 – V
L
N
L
2.41(V – 1.18)
N
2.5 – V
L
N
L
3.48(V – 1.577)
N
3.3 – V
–28.7
–19.7
–14.17
3 0 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
DLV Models
1
+INPUT
+3.3V OUTPUT
6
+3.3V
LOAD
R
T
UP
(kΩ) =
2.84
V
O
– 2.5
2
–INPUT
OUTPUT
RETURN
7
2.5 Volt Trim Up
R
T
UP
(kΩ) =
5.88
V
O
– 3.3
3
SYNC *
8
+2.5V
LOAD
+2.5V OUTPUT
+2.5V TRIM
4
R
TRIM UP
* OPTIONAL PIN
R
T
UP
(kΩ) =
1.49
V
O
– 1.8
Figure 4. Trim Connections To Increase Output Voltages Using Fixed Resistors
PA R T N U M B E R S T R U C T U R E
Part Number Suffixes
DLV
-
3.3
/
6
-
2.5
/
7
-
D48 T S N I
Dual Low Voltage/
Mixed-Voltage Series
V
1
Nominal Output Voltage
I
1
Maximum Output Current
V
2
Nominal Output Voltage
Add T, S, N and I suffixes
as desired
Input Voltage Range:
D12
= 10-18 Volts (12V nominal)
D24
= 18-36 Volts (24V nominal)
D48
= 36-75 Volts (48V nominal)
I
2
Maximum Output Current
Standard DLV DC/DC’s provide a Trim function (Pin 9) for the lower
of the two output voltages. A Trim pin (Pin 5) for the higher voltage can
be added by indicating a "T" suffix. A Sync pin can also be added and
is indicated by an "S" suffix. An "N" suffix indicates that the On/Off
Control function incorporates negative polarity logic. An "I" suffix provides
independent on/off control (Pin 4) for the higher output voltage.
No Suffix
Pins 3 & 5 not installed, positive polarity On/Off Control
T Suffix
Pin 5 added for higher voltage Trim option
S Suffix
Pin 3 added for Sync Option
N Suffix
Negative polarity On/Off Control
I Suffix
Pin 4 independent on/off control of Pin 6 output voltage
Ordering Information
Higher Voltage
Trim
(Pin 5 Installed)
Sync Function
(Pin 3 Installed)
Positive/Negative
Logic
Positive
No
Negative
No
Positive
Yes
Negative
Positive
No
Negative
Yes
Positive
Yes
Negative
Control of "Higher"
Output Voltage
(Via Pin 4)
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Independent On/Off
Control, Both Outputs
(Via Pin 4)
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
®
®
INNOVATION and EXCELLENCE
ISO 9001 REGISTERED
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: sales@datel.com
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 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.
5
L
N
ON/OFF
CONTROL
9
1.8 Volt Trim Up
L
N
L
N
L
N
L
N
+3.3V TRIM *
5
R
TRIM UP
3.3 Volt Trim Up
L
N
–19.7
–28.7
Note: Resistor values are in kΩ. Accuracy
of adjustment is subject to
tolerances of resistors and fac-
tory-adjusted output accuracy.
V
O
= desired output voltage.
–14.17
Suffix
No Suffix
I
N
NI
S
SI
SN
SNI
T
TI
TN
TNI
TS
TSI
TSN
TSNI
DS-0490
12/00
