TWR-5/3000-12/500-D12A-C 数据手册
TWR A-Series
www.murata-ps.com
20W, Triple Output DC-DC Converters
Typical unit
Among the three families of triple-output DC/DC converters in MPS’s
A-Series, the 20W 2" x 2" devices are distinguished by their unique
“power-sharing” architecture. This feature enables devices to deliver
the full 20 Watts of output power under a variety of output-loading
conditions.
FEATURES
PRODUCT OVERVIEW
Low cost! Highly reliable!
Each unit’s primary +5V output can source any current up to 3 Amps (primary power = 15W); while its
auxiliary ±12/15V outputs can source currents up to
±500mA (auxiliary power = 12/15W). Devices deliver
any combination of primary plus auxiliary power as
long as the total output power does not exceed 20
Watts. This feature enables designers to select a
single device to fulfill any number of different requirements.
As members of MPS’s new A-Series, the 20W triples
exhibit both low cost and outstanding long-term
reliability. Their design combines straightforward
circuit topologies, the newest components, proven
SMT-on-pcb construction methods, and highly repeatable automatic-assembly techniques. Their superior
Full 20 Watts output power
Power “user-allocated” among outputs
Proven SMT-on-pcb construction
Qual tested; HALT tested; EMC tested
Output voltages: +5V/±12V or +5V/±15V
Ultra-wide input voltage ranges: 9-36V or 18-75V
Designed to meet UL1950/EN60950.
BASIC insulation (all 48VIN models)
CE mark available (75V input models)
Small packages, 2" x 2" x 0.45"
Fully isolated, 1500Vdc guaranteed
Guaranteed efficiencies to 82%
–40 to +100°C operating temperature
Modifications and customs for OEM’s
durability is substantiated by a rigorous in-house
qualification program that includes HALT (Highly
Accelerated Life Testing).
Each device has a +5V primary output and either
±12V or ±15V auxiliary outputs. “D12A” models
achieve fully rated performance with inputs ranging
from 9 to 36 Volts. “D48A” models operate over an
input range of 18-75 Volts.
These full-featured triples have non-latching output
current limiting, input overvoltage shutdown, input
reverse-polarity protection, and output overvoltage
clamping to protect both the power converters and
their loads.
SIMPLIFIED SCHEMATIC
+5V
+V IN
(1)
(6)
–12V (–15V)
– V IN
(8)
(2)
ON /O FF
CONTROL
+12V (+15V)
(5)
PWM
CONTROLLER
(4)
COMMON
(7)
OPTO
ISOLAT ION
ERROR
AMPLIFIER
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_TWR20W.E02 Page 1 of 8
TWR A-Series
20W, Triple Output DC-DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output
R/N (mVp-p) Regulation
VOUT
IOUT
Model Family
(V)
(mA)
Typ.
Max.
Line
Load
Input
VIN Nom.
(Volts)
Range
(Volts)
IIN
(mA)
Min.
Typ.
Package
(Case/
Pinout)
Efficiency
TWR-5/3000-12/500-D12A-C
+5
±12
3000
±500
50
75
100
125
±0.2%
±0.5%
±0.5%
±6%
12
9-36
20/1004
81%
82%
C4, P13
TWR-5/3000-12/500-D48A-C
+5
±12
3000
±500
50
75
100
125
±1%
±1%
±2%
±5%
48
18-75
40/559
82%
83%
C4, P13
TWR-5/3000-15/500-D12A-C
+5
±15
3000
±500
50
75
100
150
±0.1%
±0.5%
±0.25%
±4%
12
9-36
40/1173
81%
82%
C4, P13
TWR-5/3000-15/500-D48A-C
+5
±15
3000
±500
50
75
100
150
±1%
±1%
±2%
±5%
48
18-75
40/559
81%
82%
C4, P13
Typical @ TA = +25°C under nominal line voltage and full-load conditions unless otherwise noted. For the +5V output, listed spec applies over the 10% to 100% load range. For the ±12/15V outputs,
For testing and specification purposes, “full load” is defined as 2.75A on the primary +5V output and listed spec applies for balanced loads over the 20% to 100% load range.
±250/200mA on the auxiliary ±12/15V outputs. This corresponds to a total output power of 19.75W. Nominal line voltage, no-load/full-load conditions.
Ripple/Noise (R/N) measured over a 20MHz bandwidth.
PART NUMBER STRUCTURE
MECHANICAL SPECIFICATIONS
T WR - 5 / 3000 - 15 / 500 - D48 A - C
2.00
(50.80)
Output
Configuration:
T = Triple
RoHS-6 compliant*
A-Series
High Reliability
Wide Range Input
Input Voltage Range:
Nominal Primary Output:
D12 = 9-36V (12V nominal)
Voltage (+5V)
D48 = 18-75V (48V nominal)
Maximum Auxilliary Output:
Maximum Primary Output
Current in mA
Currents in mA from each output
Nominal Auxiliary Output:
* Contact Murata
Voltages (±12 or ±15V)
Power Solutions for
availability.
ME T A L C A S E
0.45
(11.43)
Case C4
IN S U LA T E D B A S E
0.040 ±0.002 D IA .
(1.016 ±0.051)
0.20 MIN
(5.08)
1.800
(45.72)
0.10
(2.54)
5
0.200
(5.08)
6
TEMPERATURE DERATING
1
2
20
7
0.400
(10.16)
19
1.200
(30.48)
3 E Q . SP. @
0.400 ( 10.16)
2.00
(50.80)
4
18
17
8
16
0.100
(2.54)
15
0.40
(10.16)
B O T T O M V IE W
14
Output Power (Watts)
13
12
11
INPUT/OUTPUT CONNECTIONS
10
9
Pin
Function P13
8
1
+Input
7
2
-Input
5
3
No Pin
4
4
On/Off Control
3
5
+12V/15V Output
6
+5V Output
6
2
1
0
–40
0
40
45
50
55
60
65
70
75
80
85
90
95
100
7
Common
8
-12V/15V Output
Note: For “D12A” models, the case
is connected to pin 2 (–VIN).
For “D48A” models, the case is
connected to pin 1 (+VIN).
Dimensions are in inches (mm)
Ambient Temperature (°C)
www.murata-ps.com/support
MDC_TWR20W.E02 Page 2 of 8
TWR A-Series
20W, Triple Output DC-DC Converters
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and “full-load” conditions, unless noted.
Input
Input Voltage Range:
D12A Models
D48A Models
9-36 Volts (24V nominal)
18-75 Volts (48V nominal)
Input Current
See Ordering Guide
Input Voltage:
“D12” Models
“D48” Models
Input Filter Type
Pi
Input Reverse-Polarity Protection
Overvoltage Shutdown:
D12A Models
D48A Models
40 Volts
80 Volts
Reverse-Polarity Protection
Yes (Instantaneous, 6A maximum)
On/Off (Sync.) Control (Pin 4)
TTL high = off, low (or open) = on
Output Overvoltage Protection
+5V Output
±12V Outputs
±15V Outputs
Absolute Maximum Ratings
Output
Total Output Power
20W max., sum of all outputs
VOUT Accuracy (50% loads):
+5V Output
±12V or ±15V Outputs
±1%
±3%
Temperature Coefficient
±0.02% per °C
Ripple/Noise (20MHz BW)
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efficiency
See Ordering Guide
Isolation Voltage
1500Vdc, minimum
Isolation Capacitance
500pF
Current Limiting
Power down to restart
Short Circuit Protection at 25ºC
5 min. max, 5V output
30 sec max.12/15V outputs
Overvoltage Protection
back
Zener/transorb clamps, magnetic feed-
Dynamic Characteristics
Transient Response (50% load step)
300μsec max. to ±2% of final value
Switching Frequency
165kHz (±15kHz)
Environmental
Operating Temperature (ambient):
Without Derating
With Derating
–40 to +55°C
to +100°C (See Derating Curve)
Storage Temperature
–40 to +105°C
Physical
Dimensions
2" x 2" x 0.45" (51 x 51 x 11.4mm)
Shielding
5-sided
Case Connections:
D12A Models
D48A Models
Pin 2 (–VIN)
Pin 1 (+VIN)
Case Material
Corrosion resistant steel with
non-conductive, epoxy-based, black
enamel finish and plastic baseplate
Pin Material
Copper alloy with gold plate over nickel
underplate
Weight
2.7 ounces (77 grams)
These converters require 10% min. loading on their primary output and 20% min.
loading on their auxiliary outputs to maintain specified regulation. Operation under no-load
conditions will not damage the devices; however they may not meet all listed specifications. For
testing and specification purposes, “full load” is defined as 2.75A on the primary +5V output and
±250/200mA on the auxiliary ±12/15V outputs. This corresponds to a total output power of 19.75W.
Application-specific internal input/output filtering can be recommended or perhaps added
internally upon request. Contact MPS Applications Engineering for details.
Applying a voltage to the Control pin when no input power is applied to the converter can
cause permanent damage to the converter.
D48A models have BASIC, D12A models have Functional insulation.Devices can be screened
or modified for higher guaranteed isolation voltages. Contact MPS Applications Engineering
for details.
To avoid damage to the surface finish, please do not use certain cleaning agents such as Vigon.
Contact Murata Power Solutions for information.
44 Volts
88 Volts
Current must be
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