PMA5319SF/B [ERICSSON]
DC-DC Regulated Power Supply Module, 1 Output, 30W, Hybrid, SMT-14;
| 型号： | PMA5319SF/B |
| 厂家： | 
ERICSSON |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 30W, Hybrid, SMT-14 |
| 文件： | 总15页 (文件大小：289K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PMA 5000 Series
DC/DC regulators
Input 4.5 - 5.5V
Output Current 12A
Key Features
• Surface mountable
• Low profile, max 8.5mm (0.33 in)
• High efficiency
• Low weight
• Designed for Environment, DfE
• Lead-free / Bromine-free
• Robust design
The PMA series of DC/DC regulators (POL) are
intended to be used as local distributed power sources
in distributed power architecture level 4. The PMA
series use a ceramic substrate with fine-pitch compo-
nents technology and a high degree of silicon integra-
tion. Together with the electrical design using low
Rds-On MOSFET, this provides excellent thermal
management, high reliability and high efficiency. The
high efficiency makes it possible to operate over a
wide temperature range, without adding any external
heat dissipator. At forced convection cooling >1 m/s
(200 lfm), the PMA typically delivers full power up to
+80 °C ambient temperature.
series makes them particularly suited for the commu-
nications equipment of today and tomorrow and ap-
plications with board spacing down to 15 mm (0.6 in).
The flat case top enables pick-and-place handling and
provides a surface for attachment to cooling surfaces in
areas with limited air flow.
These products are manufactured using the most
advanced technologies and materials to comply with
environmental requirements. Designed to meet high
reliability requirements of systems manufacturers, the
PMA responds to world-class specifications.
Ericsson Power Modules is an ISO 9001/14001 certi-
fied supplier.
The high reliability and the low profile of the PMA
E
Datasheet
Absolute Maximum Ratings
Safety
The PMA 5000 series DC/DC regulators
are designed in accordance with safety
standards IEC/EN/UL 60 950, Safety of
Information Technology Equipment.
Characteristics
min
-45
max
+110
+125
+6.0
Unit
˚C
T
Maximum Operating Case Temperature
Storage temperature
C
S
T
-55
˚C
V
Input voltage
-0.3
Vdc
I
The PMA 5000 series DC/DC regulators
are UL 60 950 recognized and certified in
accordance with EN 60 950.
Note:
Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as
no destruction limits, are normally tested with one parameter at a time exceeding the limits of Output data or Electrical Characteristics. If
exposed to stress above these limits, function and performance may degrade in an unspecified manner.
The DC/DC regulator should be installed
in the end-use equipment, in accordance
with the requirements of the ultimate
application. The input source must be
isolated by minimum Reinforced or
Double insulation from the primary
circuit in accordance with IEC/EN/UL
60 950. If the input voltage to the DC/
DC regulator is SELV (Safety Extra Low
Voltage) then the output remains SELV
under normal and abnormal operating
conditions.
TC = -30˚C...+90˚C, VI = 4.5...5.5V unless otherwise specified
Typ values specified at: TC = +25˚C, VInom. VInom = 5.0V, Iomax = 12A
Input
Characteristics
Conditions
min
4.5
typ
5.0
max
5.5
Unit
Vdc
V
Input voltage range
I
Ramping from higher
voltage
V
Turn-off input voltage
Turn-on input voltage
4.0
4.3
Vdc
Vdc
Ioff
Ramping from lower
voltage
V
Ion
C
Input capacitance
Input idling power
194
550
µF
I
It is recommended that a slow blow fuse
with a rating of 25A be used at the input
of each DC/DC regulator. If a fault occurs
in the regulator that imposes a short
circuit on the input source, this fuse will
provide the following functions:
P
P
I = 0
o
mW
Ii
Input stand-by power
(RC active)
Non operation
30
mW
mV
RC
V ac
Input ripple
20Hz...5MHz, I max
o
200 1)
I
1) Measured with L = 1.6 µH and 10 µF at the input.
• Isolate the faulty DC/DC regulator
from the input power source not to
affect the operation of other parts of
the system.
Environmental Characteristics
• Protect the distribution wiring from
excessive current and power loss thus
preventing hazardous overheating.
Characteristics
Frequency
Acceleration density
10 ... 500 Hz
0.5 g /Hz
Random Vibration IEC 68-2-34E
d
2
Frequency range
Acceleration amplitude
10 ... 500 Hz
Vibration
(Sinusoidal)
The flammability rating for all
construction parts of the DC/DC
regulator meets UL 94V-0.
10 g or displacement
amplitude 0.75 mm
10 in each axis
IEC 68-2-6 F
c
Number of cycles
Mechanical shock
(half sinus)
Peak acceleration
Duration
200 g
3 ms
IEC 68-2-27 E
a
Temperature
cycling
Temperature
Number of cycles
-40 ... +125 ˚C
500
IEC 68-2-14 N
a
Temperature
Humidity
Duration
+85 ˚C
85 % RH
1000 hours
Accelerated damp IEC 68-2-3 C
a
heat
with bias
Solde immersion depth
Time for onset of wetting
Wetting force
2 mm
< 2.5 s
> 200 mN/m
Solderability
IEC 68-2-54
Resistance to
cleaning solvents
Moulded package
Laser marking
All commercially avail-
able
Fluid
Cold (in operation) IEC 68-2-1, test Aa
Storage IEC 68-2-2 Ba
Temperature
-45 ˚C
Temperature
Duration
+125 ˚C
1000 h
PMA 5000 Series Datasheet
EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
2
Mechanical Data
3,02 [ꢁꢀ,81
302 [±ꢀꢁ381 (ꢁ4x)
ꢁ809 [±ꢀ721
3±04 [ꢁꢀ,±1
ꢁ
,807 [ꢁꢀꢁ31
ꢁ70, [±ꢀ681
( ,02 [±ꢀꢁ1 )
ꢁ08 [±ꢀ±7ꢁ1
±07 [±ꢀ±,71 (4x)
320, ±±02 [ꢁꢀ39 ±±ꢀ±,1
ꢁ [±ꢀ±391 (7x)
Recommended layout pattern
(component side footprint)
ꢁ
Tolerances unless specified
±±0,2 [±±ꢀ±ꢁ1
Pin true position within
±0,2 [±ꢀ±ꢁ1 with reference
to package centerꢀ
ꢁ0, [±ꢀ±471 (8x)
ꢁ02 [±ꢀ±291 (6x)
,0ꢁ [±ꢀ±831 (6x)
Coplanarity ±0ꢁ [±ꢀ±±41 max
Standoff ±03 ±±0ꢁ [±ꢀ±ꢁ, ±±ꢀ±±41
Lead thickness ±03 [±ꢀ±ꢁ,1
E
dimensions in mm [in1
Connections
Fundamental Circuit Diagram
Pin
1-2
3-4
5-6
7
Designation
+ Out
Function
OUT
IN
Output voltage
+SENSE
Gnd
Ground
+ In
Input voltage
Do not connect
Do not connect
Do not connect
Reserved for future function
Reserved for future function
Reserved for future function
GND
GND
Vadj
8
9
PWM
controller
Error
Remote control, To turn-on and turn-
off the regulator
amplifier
10
RC
Ref
RC
RC
11
12
13
14
Select
Vadj
Select pin for pos/neg logic
Output voltage adjust
Remote sensing
Block
GND
RC Sel
GND
+Sense
NC
Not connected
Weight
PMA 5000 SF 12g
Case
Material: Semiconductor grade epoxy.
Coefficient of thermal expansion (CTE)
is typ. 10 ppm/˚C
Pins
Material: Copper
Plating: first plating Nickel (Ni)
second plating (outer) Palladium (Pd)
PMA 5000 Series Datasheet EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
3
PMA 5319 Output
TC = –30…+90°C, VI = 4.5...5.5V unless otherwise specified.
Typ values specified at: TC = +25°C and VInom. VInom = 5.0V, IOmax = 12A. Note: +Sense must be connected to +Out
Output
Unit
V
Characteristics
Conditions
min
2.45
typ
max
2.55
Output voltage initial setting
TC = +25°C, VInom, IOmax
2.50
and accuracy
VOi
Output adjust range
TC = +25°C, VInom, IOmax
2.00
2.425
2.43
2.75
2.575
2.57
V
Output voltage tolerance band
Idling voltage
IO = 0.1...1.0 x IOmax, VI = 4.5...5.5V
V
I
O = 0
V
VO
Line regulation
VImin ... VImax, IOmax
2
3
mV
mV
Load regulation
IO = 0.01...1.0 x IOmax, VInom
Load transient
voltage deviation
Vtr
ttr
85
mV
Load step = 0.25 ... 0.75 x IOmax
dI/dt = 5A/µs
Load transient recovery time
Temperature coefficient
Ramp-up time
9
0
µs
TC = 40 ... 90°C, IOmax
-0.1
+0.1
5.5
mV/°C
ms
Tcoeff
tr
0.1...0.9 x VO, IO = 0.1 ...1.0 x IOmax, VInom
From VI connected to VO = 0.9 x VOI
IO = 0.1 ...1.0 x IOmax, VInom
,
ts
Start-up time
7.5
ms
tRCoff
RC shut-down time to VO x 0.1
RC start-up time to VO x 0.9
Output current
IO = IOmax, VInom
IO = IOmax, VInom
0.2
6
ms
ms
A
tRCon
IO
0
12
POmax Max output power
At VO = VOnom
30
15
W
Ilim
Current limit threshold
Output ripple
TC < TCmax
24
28
30
50
A
VOac
20Hz ... 5MHz, IOmax
mVp-p
Miscellaneous
TC = –30…+90°C, VI = 4.5...5.5V unless otherwise specified.
Typ values specified at: TC = +25°C and VInom. VInom = 5.0V, IOmax = 12A. Note: +Sense must be connected to +Out
Characteristics
Conditions
O = 0.5 x IOmax
O = IOmax
min
89
typ
93
max
Unit
%
η
Efficiency - 50% load
Efficiency - 100% load
Power Dissipation
I
I
η
91
%
P
IO = IOmax
3.0
300
3.7
340
8
W
d
Fo
Switching frequency
Remote sense current
Static input current
IO = 0 ... 1.0 x IOmax
250
kHz
mA
A
Isense
II
VI = 4.5 V, IO = IOmax, TC = 25°C
7.4
12
million
hours
MTBF Predicted reliability
TC = 40°C
PMA 5000 Series Datasheet
EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
4
PMA 5319 Typical Characteristics
Efficiency
Output Current Derating
[%]
95
[A]
14
12
10
90
85
3.0 m/s (600 lfm)
1.5 m/s (300 lfm)
1.0 m/s (200 lfm)
0.5 m/s (100 lfm)
Nat. Conv.
8
6
4
2
0
4.5 V
5.0 V
5.5 V
80
75
70
0
20
40
60
80
100 [°C]
0
3
6
9
12
15 [A]
Available load current vs. ambient air temperature and
Efficiency vs. load current and input voltage at TC=+25 °C
airflow at Vin=5.0 V. See conditions on page 12.
Output Characteristic
Power Dissipation
[V]
[W]
4
2.60
2.55
2.50
2.45
2.40
3
2
1
0
4.5 V
5.0 V
5.5 V
0
3
6
9
12
15 [A]
[A]
15
0
3
6
9
12
Output voltage vs. load current at TC=+25 °C, Vin=5.0 V.
Dissipated power vs. load current and input voltage at
TC=+25 °C
Turn-Off
Start-Up
Turn-off at IO=12A resistive load at TC=+25 °C,
Vin=5.0 V. Turn-off enabled by disconnecting Vin.
Top trace: input voltage (2 V/div.).
Bottom trace: output voltage (0.5 V/div.).
Time scale: 0.5 ms/div.
Start-up at IO=12A resistive load at TC=+25 °C,
Vin=5.0 V. Start enabled by connecting Vin.
Top trace: input voltage (2 V/div.).
Bottom trace: output voltage (1 V/div.).
Time scale: 5 ms/div.
PMA 5000 Series Datasheet EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
5
PMA 5319 Typical Characteristics
Output Ripple
Transient
Output voltage ripple (20mV/div.) at TC=+25 °C, Vin=5.0 V,
IO=12A resistive load.
Band width=5MHz.
Output voltage response to load current step-change
(3-9-3 A) at TC=+25 °C, Vin=5.0 V. dI/dt = 5A/µs
Top trace: output voltage (ac) (100mV/div.).
Bottom trace: load current (dc) (100mV/div.)
Time scale: 0.1 ms/div.
Time scale: 2µs / div.
Output Voltage Adjust
Output Voltage Adjust
[V]
The resistor value for an adjusted output voltage is
calculated by using the following formulas:
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
V
V
increase
decrease
O
O
Output Voltage Adjust Upwards, Increase:
Radj= 3.767/(VO-2.5)-1 [kΩ]
Output Voltage Adjust Downwards, Decrease:
Radj= (2.212(VO-0.8))/(0.8-(0.469(VO-0.8)))-1 [kΩ]
E.g. Increase to VO = 2.613 V
3.767/(2.613-2.5)-1 = 33 [kΩ]
18 15 22 33 47 68 100 150 220 470 1000 [kΩ]
E.g. Decrease to VO = 2.295 V
Output voltage vs. Output voltage adjust
resistor value.
(2.212(2.295-0.8))/(0.8-(0.469(2.295-0.8)))-1 = 33 [kΩ]
PMA 5000 Series Datasheet
EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
6
PMA 5310 Output
TC = –30…+90°C, VI = 4.5...5.5V unless otherwise specified.
Typ values specified at: TC = +25°C and VInom. VInom = 5.0V, IOmax = 12A. Note: +Sense must be connected to +Out
Output
Unit
V
Characteristics
Conditions
min
typ
max
Output voltage initial setting
TC = +25°C, VInom, IOmax
3.235
3.30
3.365
and accuracy
VOi
Output adjust range
TC = +25°C, VInom, IOmax
2.64
3.20
3.22
3.63
3.40
3.38
V
Output voltage tolerance band
Idling voltage
IO = 0.1...1.0 x IOmax, VI = 4.5...5.5V
V
I
O = 0
V
VO
Line regulation
VImin ... VImax, IOmax
7
3
mV
mV
Load regulation
IO = 0.01...1.0 x IOmax, VInom
Load transient
voltage deviation
Vtr
ttr
100
mV
Load step = 0.25 ... 0.75 x IOmax,
dI/dt = 5A/µs
Load transient recovery time
Temperature coefficient
Ramp-up time
7
0
µs
TC = 40 ... 90°C, IOmax
-0.1
+0.1
5.8
mV/°C
ms
Tcoeff
tr
0.1...0.9 x VO, IO = 0.1 ...1.0 x IOmax, VInom
From VI connected to VO = 0.9 x VOI
IO = 0.1 ...1.0 x IOmax, VInom
,
ts
Start-up time
8.0
ms
tRCoff
RC shut-down time to VO x 0.1
RC start-up time to VO x 0.9
Output current
IO = IOmax, VInom
IO = IOmax, VInom
0.3
6
ms
ms
A
tRCon
IO
0
12
POmax Max output power
At VO = VOnom
39.6
15
W
Ilim
Current limit threshold
Output ripple
TC < TCmax
22
35
30
50
A
VOac
20Hz ... 5MHz, IOmax
mVp-p
Miscellaneous
TC = –30…+90°C, VI = 4.5...5.5V unless otherwise specified.
Typ values specified at: TC = +25°C and VInom. VInom = 5.0V, IOmax = 12A. Note: +Sense must be connected to +Out
Characteristics
Conditions
O = 0.5 x IOmax
O = IOmax
min
91
typ
94.5
92.5
3.1
max
Unit
%
η
Efficiency - 50% load
Efficiency - 100% load
Power Dissipation
I
I
η
%
P
IO = IOmax
4.0
340
8
W
d
Fo
Switching frequency
Remote sense current
Static input current
IO = 0 ... 1.0 x IOmax
250
300
kHz
mA
A
Isense
II
VI = 4.5 V, IO = IOmax, TC = 25°C
9.5
12
million
hours
MTBF Predicted reliability
TC = 40°C
PMA 5000 Series Datasheet EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
7
PMA 5310 Typical Characteristics
Output Current Derating
Efficiency
[%]
[A]
14
100
12
10
95
90
3.0 m/s (600 lfm)
8
4.5 V
5.0 V
5.5 V
1.5 m/s (300 lfm)
85
1.0 m/s (200 lfm)
0.5 m/s (100 lfm)
6
80
Nat. Conv.
4
75
70
2
0
0
20
40
60
80
100 [°C]
0
3
6
9
12
15 [A]
Available load current vs. ambient air temperature and
Efficiency vs. load current and input voltage at TC=+25 °C
airflow at Vin=5.0 V. See conditions on page 12.
Output Characteristic
Power Dissipation
[V]
[W]
4
3.6
3.5
3.4
3.3
3.2
3.1
3.0
3
2
1
0
4.5 V
5.0 V
5.5 V
0
3
6
9
12
15 [A]
0
3
6
9
12
15 [A]
Output voltage vs. load current at TC=+25 °C, Vin=5.0 V.
Dissipated power vs. load current and input voltage at
TC=+25 °C
Turn-Off
Start-Up
Turn-off at IO=12A resistive load at TC=+25 °C,
Vin=5.0 V. Turn-off enabled by disconnecting Vin.
Top trace: input voltage (2 V/div.).
Bottom trace: output voltage (1 V/div.).
Time scale: 1 ms/div.
Start-up at IO=12A resistive load at TC=+25 °C,
Vin=5.0 V. Start enabled by connecting Vin.
Top trace: input voltage (2 V/div.).
Bottom trace: output voltage (1 V/div.).
Time scale: 2 ms/div.
PMA 5000 Series Datasheet
EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
8
PMA 5310 Typical Characteristics
Output Ripple
Transient
Output voltage ripple (20mV/div.) at TC=+25 °C, Vin=5.0 V,
IO=12A resistive load.
Band width=5MHz.
Output voltage response to load current step-change
(3-9-3 A) at TC=+25 °C, Vin=5.0 V. dI/dt 0 5A/µs
Top trace: output voltage (ac) (100mV/div.).
Bottom trace: load current (dc) (100mV/div.).
Time scale: 0.1 ms/div.
Time scale: 2µs / div.
Output Voltage Adjust
Output Voltage Adjust
[V]
The resistor value for an adjusted output voltage is
calculated by using the following formulas:
3.7
V
V
increase
decrease
3.5
3.3
3.1
2.9
2.7
2.5
O
O
Output Voltage Adjust Upwards, Increase:
Radj= 3.767/(VO-3.3)-1 [kΩ]
Output Voltage Adjust Downwards, Decrease:
adj= (1.504(VO-0.8))/(0.8-(0.319(VO-0.8)))-1 [kΩ]
R
E.g. Increase to VO = 3.406 V
3.767/(3.406-3.3)-1 = 39 [kΩ]
10 15 22 33 47 68 100 150 220 470 1000 [kΩ]
E.g. Decrease to VO = 3.047 V
Output voltage vs. Output voltage adjust
resistor value.
(1.504(3.047-0.8))/(0.8-(0.319(3.047-0.8)))-1 = 39 [kΩ]
PMA 5000 Series Datasheet EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
9
Operating Information
Remote Control (RC)
EMC Specification
Layout Recommendation
The PMA 5000 Series DC/DC regulators have remote control
function, with both negative and positive logic options. The
RC function is CMOS open drain compatible. Maximum sink
current is 1mA. The (RC) and (Select) pins have identical
functions meaning that the functions may be inverted. If either
one of the pins is shorted to ground the regulator is turned
off. If both pins are are shorted to ground or both pins are
disconnected the regulator is turned on.
The radiated EMI performance of the DC/DC regulator will be
optimised by including a ground plane in the PCB area under
the DC/DC regulator. This approach will return switching
noise to ground as directly as possible, with improvements to
both emission and susceptibility.
Positive logic:
To choose positive logic, leave the Select pin open = 1.
Negative logic:
To choose negative logic, connect the Select pin to GND = 0.
With the RC pin, i.e. with a suitable open collector function,
the ON/OFF condition of the regulator may be controlled.
RC
Select
Regulator condition
0
0
1
1
0
1
0
1
ON
OFF
OFF
ON
0= Defined as low voltage level, 0-0.3V
1= Defined as high voltage level, approx. 4V, (internal level)
Remote Sense
All PMA 5000 Series DC/DC regulators have a positive remote
sense pin that can be used to compensate for moderate amounts
of resistance in the distribution system and allow for voltage
regulation at the load or other selected point. The remote sense
line will carry very little current and does not need a large cross
sectional area. However, the sense line on the PCB should be
located close to a ground trace or ground plane. The remote
sense circuitry will compensate for up to 10% voltage drop
between the sense voltage and the voltage at the output pins
from VOnom. If the remote sense is not needed the sense pin
should be connected to +Out.
PMA 5000 Series Datasheet
EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
10
Operating Information
Output Voltage Adjust (Vadj
)
Input And Output Impedance
All PMA 5000 Series DC/DC regulators have an Output
Voltage adjust pin (Vadj). This pin can be used to adjust the
output voltage above or below Output voltage initial setting.
Note that at increased output voltages the maximum power
rating of the regulator remains the same, and the output
current capability will decrease correspondingly. To decrease
the output voltage the resistor should be connected between
The impedance of both the power source and the load will
interact with the impedance of the DC/DC regulator. It is
most important to have a low characteristic impedance, both
at the input and output, as the regulators have a low energy
storage capability. Use capacitors across the input if the source
inductance is greater than 4.7µH. Suitable input capacitors are
47µF-220µF low ESR ceramics.
Vadj pin and the Sense pin. To increase the voltage the resistor
Max output capacitance is 5000µF. The use of low ESR
capacitors is important and should be <15 mΩ.
should be connected between Vadj pin and the GND pin. The
resistor value of the Output voltage adjust function is according
to information given under the output section.
Maximum Capacitive Load
When powering loads with significant dynamic current
requirements, the voltage regulation at the load can be
improved by addition of decoupling capacitance at the load.
The most effective technique is to locate low ESR ceramic
capacitors as close to the load as possible, using several
capacitors to lower the total ESR. These ceramic capacitors will
handle short duration high-frequency components of dynamic
load changes. In addition, higher values of capacitors should
be used to handle the mid-frequency components. It is equally
important to use good design practise when configuring the
DC distribution system.
+Out
+Out
Sense
Load
V
R
adj
adj
Load
R
adj
V
adj
GND
GND
Decrease
Increase
Circuit configuration for output voltage adjust
Low resistance and low inductance PCB layouts and cabling
should be used. Remember that when using remote sensing,
all resistance, inductance and capacitance of the distribution
system is within the feedback loop of the regulator. This
can affect on the regulators compensation and the resulting
stability and dynamic response performance. The PMA 5000
series regulator can accept up to 5mF of capacitive load on the
output at full load. This gives <500µF/A of IO.
Current Limit Protection
The PMA 5000 Series DC/DC regulators include current
limiting circuitry that allows them to withstand continuous
overloads or short circuit conditions on the output. The current
limit is of hick-up mode type.
The regulator will resume normal operation after removal of the
overload. The load distribution system should be designed to
carry the maximum output short circuit current specified.
Parallel Operation
The PMA 5000 Series DC/DC regulators can be connected in
parallel with a common input. Paralleling is accomplished by
connecting the output voltage pins directly and using a load
sharing device on the input. Layout considerations should be
made to avoid load imbalance and it is recommended not to use
more power than that of each individual regulator. For more
details on paralleling, please consult the separate Application
Note AN202A.
Over Temperature Protection (OTP)
The PMA 5000 Series DC/DC regulators are protected from
thermal overload by an internal over temperature shutdown
circuit. When the case temperature (center of case ) exceeds
140 ºC the regulator will shut down immediately.
The regulator will return to normal operation when the over
temperature degrades.
PMA 5000 Series Datasheet EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
11
Thermal Considerations
Calculation of ambient temperature
General
The PMA 5000 Series DC/DC regulators are designed
to operate in a variety of thermal environments, however
sufficient cooling should be provided to help ensure reliable
operation. Heat is removed by conduction, convection and
radiation to the surrounding environment. Increased airflow
enhances the heat transfer via convection. The available load
current vs. ambient air temperature and airflow at Vin=5.0 V
for each model is according to the information given under the
output section.
By using the thermal resistance the maximum allowed
ambient temperature can be calculated.
A. The powerloss is calculated by using the formula
((1/η) - 1) × output power = power losses.
η = efficiency of regulator. Example: 95% = 0.95
B.Find the value of the thermal resistance Rth C-A in the dia-
gram by using the airflow speed at the module. Take the ther-
mal resistance × powerloss to get the temperature increase.
[°C/W]
20
Test conditions:
The test is done in a wind tunnel with a cross section of
305x305 mm, the DC/DC regulator horisontally mounted on
a 2 layer PCB with a size of 230x160 mm. Proper cooling can
be verified by measuring the temperature on top of the case.
R
th C-A
15
10
5
14
13
12
11
10
9
1
2
3
4
5
6
Top view
0.0
0.5
1.0
1.5
2.0
2.5
3.0 [m/s]
8
7
Thermal resistance vs. airspeed measured at the regulator.
Reference area T
C
TCmax = 110°C
C.Max allowed calculated ambient temperature is:
Max TC of DC/DC regulator - temperature increase.
Example: PMA 5319 at 1m/s:
A. ((1/0.90) - 1) × 30W = 3.33W
B. 3.33W × 11.7°C/W = 39.0°C
C.110°C - 39°C = max ambient temperature is 71°C
The real temperature will be dependent on several factors,
like PCB size and type, direction of airflow, air turbulence
etc. It is recommended to verify the temperature by testing.
PMA 5000 Series Datasheet
EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
12
Miscellaneous
Soldering Information
The PMA 5000 series DC/DC regulators are intended for
reflow soldering processes. Extra precautions must be taken
when reflow-soldering the module. Neglecting the soldering
information provided may result in permanent damage or
significant degradation of the regulator performance. No
responsibility is assumed if these recommendations are not
strictly followed.
pin temperature
case temperature
[°C]
300
max case temperature
@ 215°C (Sn-Pb solders)
250
200
150
100
50
reflow ramp-
up max 3°/s
cooling
max 5°/s
preheat
max 3°/s
The regulator may be reflow soldered using vapour phase
reflow (VPR) or forced convection reflow processes. The
high thermal mass of the component and its effect on the
temperature differences (∆T) over a PCB means that particular
attention should be paid to other temperature sensitive
components.
soak zone (150°C-
180°C) 30-180s
reflow
zone
0
Time
30
0
4
20
8
For successful soldering of the PMA 5000 series DC/DC
regulators, both pin temperature and case temperature must be
monitored:
Conventional Sn-Pb convection solder process
For conventional Sn-Pb solder processes, the PMA 5000 series
regulator is qualified for MSL 1 according to Jedec standard
(J-STD-020b July 2002).
• Minimum temperature of the pins:
to ensure reliable solder joints
• Maximum temperature of the regulator case:
to avoid overheating
During reflow, the case temperature must not exceed 215˚C at
any time.
Minimum temperature:
Most important is to ensure that the pins on the coolest side
reach sufficient soldering temperature for a sufficient time.
Therefore, the pin temperature measurements should be done
on both sides of the module, preferrably on the middle pins
(3/4 and 11/12).
The pins of the module are palladium plated. In order to
guarantee a reliable solder joint, a pin temperature (TP) in
excess of the solder fusing temperatue (183˚C for Sn/Pb 63/37)
for 25 seconds, and a peak temperature above 195˚C should be
reached.
Maximum temperature:
To avoid damage to the module, the reflow profile should
be optimised to avoid overheating. The case temperature
(TC) should be monitored with a thermocouple attached to
the center of the top of the case using an adhesive or heat
conductive paste.
A sufficiently extended soak time is recommended to ensure
an even temperature throughout the PCB, for both small
and large components. To reduce the risk of overheating the
module it is also recommended to minimise the time in reflow
as much as possible.
PMA 5000 Series Datasheet EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
13
Quality
Miscellaneous
Delivery Package Information
Reliability
The Mean Time Between Failure (MTBF) of the PMA 5000
series DC/DC regulator family is calculated to be greater than
(>) 12 million hours at full output power and a case temperature
of +40°C using the Ericsson failure rate data system (TILDA/
Preditool). The Ericsson failure rate data system is based on field
failure rates and is continuously updated. The data corresponds
to actual failure rates of components used in Information
Technology and Telecom equipment in temperature controlled
environments (TA= -5...+65°C). The data is considered to have
a confidence level of 90%. For more information please refer to
Design Note 002.
PMA 5000 series is delivered in antistatic injection moulded
trays (Jedec standard layout) or tape & reel (EIA standard).
Tray Specification
Material:
Polyphenylene ether (PPE)
1x105 - 9x1012 Ω/sq
Black
Surface resistance:
Color:
Capacity:
30 pcs/tray
Loaded tray stacking pitch:
Empty weight:
Full weight:
10.6 mm [0.417 inch]
145 g
505 g
Quality Statement
Notes:
The PMA 5000 series DC/DC regulators are designed and
manufactured in an industrial environment where quality
systems and methods like ISO 9000, 6σ (sigma), and SPC
are intensively in use to boost the continuous improvements
strategy. Conservative design rules, design reviews and product
qualifications, plus the high competence of an engaged work
force, contribute to the high quality of our products.
- All other dimensions according to Jedec std
- Vacuum pick-up in centre of the tray
(2 cells, hatched area 43,3x54 [1.70x2.13]
322,6 0,25 [12.7 0.01]]
315 [12.4]
Limitation of Liability
Ericsson Power Modules does not make any warranties,
expressed or implied including any warranty of merchantability
or fitness for a particular purpose (including, but not limited to,
use in life support applications, where malfunctions of product
can cause injury to a person's health or life).
36 [1.417]
27 [1.063] (9x)
E
Tape & Reel Specification
Material:
Conductive
Polystyrene (PS)
56 mm [2.20 inch]
32 mm [1.26 inch]
9.5 mm [0.37 inch]
330 mm [13 inch]
100 mm [4 inch]
150 pieces
Tape width:
Tape pitch:
Total pocket height:
Reel diameter:
Reel hub diameter:
Reel capacity:
Full reel weight:
typ. 2.5 kg
Dimensions in mm [in]
Feed direction
Tape leader min 400 [15.7]
Tape trailer min 160 [6.3]
A-A
pitch 32 [1.26]
4 0,1 [0.16 0.004]
2 [0.08]
Round holes R=0,75mm
A
A
Detail1
Detail1
PMA 5000 Series Datasheet
EN/LZT 146 034 R1B ©Ericsson Power Modules, November 2003
14
Product Program
VO/IO max
VI
P
O max
Ordering No.
Output 1
2.5 V/12 A
4.5-5.5 V
4.5-5.5 V
30 W
PMA 5319 SF
PMA 5310 SF
3.3 V/12 A
39.6 W
For more information about the complete product program, please refer
to our website: www.ericsson.com/powermodules
Ordering Information
Delivery option
M.o.q.
150 pcs
300 pcs
Suffix
/B
Example
Tray
PMA 5xxx SF/B
PMA 5xxx SF/C
Tape & Reel
/C
Information given in this data sheet is believed to be accurate and reliable.
No responsibility is assumed for the consequences of its use nor for any infringement
of patents or other rights of third parties which may result from its use.
No license is granted by implication or otherwise under any patent or patent rights of
Ericsson Power Modules. These products are sold only according to
Ericsson Power Modules’ general conditions of sale, unless otherwise confirmed in
writing. Specifications subject to change without notice.
The latest and most complete infor-
mation can be found on our website
Ericsson Power Modules
SE-141 75 Kungens Kurva, Sweden
Telephone: +46 8 568 69620
Americas
Ericsson Inc., Power Modules
+1-877-374-2642
Datasheet
For local sales contacts, please refer to our website
www.ericsson.com/powermodules
Asia/Pacific
Ericsson Ltd.
EN/LZT 146 034 R1B
or call: Int +46 8 568 69620, Fax: +46 8 568 69599
+852-2590-2453
© Ericsson Power Modules AB, November 2003
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