Hi-Rel PRE-REGULATOR MODULE
PGDS-50 : up to 50W POWER
Hi-Rel
Grade
10-80V or 6-100V Brown-out / Transient
Protection Module
Metallic Case
• Transient suppressor module 80V
• MIL-STD-704A/D/E/F, EN2282, AIR2021E
• DO160D cat A, B and Z
• Transient suppressor module 100V
• MIL-STD-1275A/B,
• Extended operation for voltage drop out
and cranking down to 6V
• Power range : from 4W to 50W
• Inhibition function
• RoHS or Leaded process
1- General
The GAIA Converter pre-regulator PGDS-50 series
designates a low profile power adaptator mo-
dule designed to extend input bus voltage to meet
system operation during voltage transients, spikes,
cranking and drop out occuring in avionics or
military systems.
The PGDS-50 delivers an output voltage adapted
to GAIA Converter DC/DC modules. This line of
module is optimized to provide high power
efficiency up to 96% over the whole power range
between 4W and 50W.
The PGDS-50 features 4 modes of operations as
follow:
•
Low line operation
:
Low line operation occurs when the input bus
voltage drops down below the permanent input
voltage range of the DC/DC converter ; then
the PGDS-50 operates in «boost» mode to
provide an output voltage compatible with
DC/DC converter.
The PGDS-50 series can sustain low line
operation down to 6V.
•
Power fail operation
:
An undervoltage lock-out stops operation and
disables the «boost» mode for voltage below
this low line operation.
•
Normal operation :
Normal operation occurs between the per-
manent input voltage of DC/DC converter; The
module is then operating in steady
transparency state.
•
Transient operation :
The PGDS-50 series clamps input transient
up to 80V/100ms or 100V/50ms.
The PGDS-50 series is compliant with the inter-
national input bus standards :
- MIL-STD-704A/D/E/F
- AECMA EN2282
- GAM-EG13B/AIR2021E
- DO160D cat A, B and Z
- MIL-STD-1275A/B
The design has been carried out with
surface mount components and is manufactured
in a fully automated process to guarranty high
quality. Every module is tested with a Gaïa
Converter automated test equipment. The modu-
les are potted with a bi-component thermal
conductive compound and packaged in a metallic
case to ensure the module’s integrity under high
environmental conditions.
4
2- Product Selection
PGDS - 50 -
input
output
/
option
suffix
Input Voltage Range
Brown-out - Transient
N : 10V/15s - 80V/100ms
O : 6V/1s - 100V/50ms
Options :
/T : option for -55°C start up operating temperature
/S : option for screening and serialization
REDEFINING THE SOURCE OF POWER
Output
K
Suffix :
nothing : RoHS process
-L : leaded process
(available in N. America)
©
Gaia Converter FC97-012.01/10 Revision J
For locations, phone, fax, E-Mail see back cover
PGDS-50 Series
3- Block Diagram
The PGDS-50 module includes 3 main circuits :
• A Boost Circuit
• An Active clamping Circuit
• A Control Circuit
•
Boost Circuitry
:
The boost circuit operates when the input bus vol-
tage drops-down (low line operation) and boost the
input voltage to a higher output value.
•
Active Clamping
:
The active clamping circuit operates when the input
bus voltage increases (transient & spike operation).
The circuitry clamps the input voltage to typically
38Vdc.
Hi-Rel
Grade
•
Control Circuit :
The control circuit monitors the different modes of
operation thrugh the V
IMES
signal and allows the
functionning of the active clamping circuit or the
boost circuit.
The PGDS-50 series features 4 modes of operations :
• Power fail operation
• Low line operation
• Normal operation
• Transient & surge operation
The following figure represents the PGDS-50 series
block diagram while the table hereafter describes
the circuitry activation depending on the 4 modes of
operations.
PGDS-50 Block Diagram
6µH
Vin
Active Clamping
Vo
Vimes
2µF
19µF
4
Control Circuit
On/Off
Boost
Function
Gin
Go
PGDS-50 Modes of Operation
Modes of Operation
Power Fail Operation
Low Line Operation
Normal Operation
Transient & Surge Operation
Control
Circuit
Off
On
On
On
Boost
Circuit
Off
On
Off
Off
Active
Clamping
Circuitt
Off
Off
Off
On
©
2
Gaia Converter FC97-012.01/10 Revision J
For locations, phone, fax, E-Mail see back cover
PGDS-50 Series
4- Modes of Operation
4-1 PGDS-50-N-K Modes of Operation
The PGDS-50-N-K operates with J input (i.e 16-40Vdc)
family of GAIA Converter DC/DC Converters.
The PGDS-50-N-K features 4 modes of operations as
follow :
•
Low line operation
:
Low line operation occurs when the input bus vol-
tage drops down below the permanent input voltage
range of the DC/DC converter i.e 16 Vdc.
The PGDS-50-N-K then operates in boost mode to
provide an output voltage compatible with the DC/
DC converter. The PGDS-50-N-K series can sustain
low line operation down to 10V during 30 sec.
Hi-Rel
Grade
•
Power fail operation
:
An undervoltage lock-out stops operation for voltage
below this low line operation threshold.
•
Normal operation :
Normal operation occurs between the permanent input
voltage of DC/DC converter; The module is then
operating in steady transparency state.
•
Transient operation :
The PGDS-50-N-K clamps input transient up to 80V as
long as 100ms.
PGDS-50-N-K Transfert Function
40
37,5
35
32,5
30
Power fail Low line
operation operation
Normal
operation
Transient and spike
operation
output voltage (Vdc)
27,5
25
22,5
20
17,5
15
12,5
10
7,5
5
2,5
0
0
4
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
Input voltage (Vdc)
Parameter
Power Fail Operation :
Undervoltage Lockout On
Undevoltage Lockout Off
Low Line Operation :
Voltage Low Line Operation On
Voltage Low Line Operation Off
Maximum output power at 10V@30sec
Normal operation :
Maximum output power
Transient & Surge Operation :
Maximum output power at 80V/100ms
Unit
Vdc
Vdc
Vdc
Vdc
W
W
W
Min.
11,25
8,80
16,30
16,40
/
/
/
Typ.
/
/
/
/
/
/
/
Max.
12
9,50
17
17,2
36
50
50
Notes, conditions
/
/
/
/
see page 6
see page 6
see page 6
©
3
Gaia Converter FC97-012.01/10 Revision J
For locations, phone, fax, E-Mail see back cover
PGDS-50 Series
4- Modes of Operation (continued)
4-2 PGDS-50-O-K Modes of Operation
The PGDS-50-O-K operates with H input (i.e 9-36Vdc)
family of GAIA Converter DC/DC Converters.
The PGDS-50-O-K features 4 modes of operations as
follow:
•
Low line operation
:
Low line operation occurs when the input bus vol-
tage drops down below the permanent input voltage
range of the DC/DC converter i.e 9 Vdc.
The PGDS-50-O-K then operates in boost mode to
provide an output voltage compatible with the DC/
DC converter. The PGDS-50-O-K series can sustain
low line operation down to 6V during 1 sec.
Hi-Rel
Grade
•
Power fail operation
:
An undervoltage lock-out stops operation for voltage
below this low line operation threshold.
•
Normal operation :
Normal operation occurs between the permanent input
voltage of DC/DC converter; The module is then
operating in steady transparency state.
•
Transient and spike operation :
The PGDS-50-O-K clamps input transient up to 100V
as long as 50ms.
PGDS-50-O-K Transfert Function
37,5
35
32,5
30
27,5
Power fail
25 operation
Low line
operation
Normal
operation
Transient and spike
operation
output voltage (Vdc)
4
22,5
20
17,5
15
12,5
10
7,5
5
2,5
0
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Input voltage (Vdc)
Parameter
Power Fail Operation :
Undervoltage Lockout On
Undevoltage Lockout Off
Low Line Operation :
Voltage Low Line Operation On
Voltage Low Line Operation Off
Maximum output power 6V@1s
Normal Operation :
Maximum output power
Transient & Surge Operation :
Maximum output power at 100V/50ms
Unit
Vdc
Vdc
Vdc
Vdc
W
W
W
Min.
5,35
4,12
11,40
11,70
/
/
/
Typ.
/
/
/
/
/
/
/
Max.
5,65
4,38
11,80
12,00
30
50
30
Notes, conditions
/
/
/
/
see page 6
see page 6
see page 6
©
4
Gaia Converter FC97-012.01/10 Revision J
For locations, phone, fax, E-Mail see back cover
PGDS-50 Series
5- Electrical Specifications
Data are valid at +25°C, unless otherwise specified.
Limit or
typical
Hi-Rel
Grade
Parameter
Input
Conditions
Units
PGDS-50-N-K
PGDS-50-O-K
J series of DC/DC
module
Compatible module
H series of DC/DC
module
Under voltage lock- Turn-on voltage
out (UVLO)
Turn-off voltage
Ui min. to max.
Start up time
No load to full load
Permanent input
Full temperature range
voltage range (Ui)
Full load
in normal operation
Compliance with
standards voltage
drop-out limit in
low line operation
16-40Vdc
9-36Vdc
Typical
Typical
Maximum
Minimum
Maximum
Minimum
MIL-STD-704A
AECMA EN2282
AIR2021E
DO160D cat A/B/Z
MIL-STD-1275A/B
Maximum
Maximum
MIL-STD-704A
AECMA EN2282
AIR2021E
DO160D cat A/Z
MIL-STD-1275A/B
MIL-STD-704A
AECMA EN2282
AIR2021E
DO160D cat A/Z
MIL-STD-1275A/B
Maximum
VDC
VDC
ms
VDC
VDC
VDC/s
10V/50ms
12V/30ms
12V/50ms
10V/15s
6V/1s
VDC/ms
VDC/s
80V/75ms
60V/50ms
60V/100ms
80V/100ms
100V/50ms
600V/10µs
400V/100µs
600V/10µs
600V/10µs
250V/70µs
mA
J series
12
9
15
17
37
10V/30s
Compliant
Compliant
Compliant
Compliant
Not compliant
80V/100ms
48V/1s
Compliant
Compliant
Compliant
Compliant
Not compliant
Compliant*
Compliant*
Compliant*
Compliant*
Not compliant
25
H series
6
5,65
15
12
37
6V/1s
Compliant
Compliant
Compliant
Compliant
Compliant
100V/50ms
48V/1s
Compliant
Compliant
Compliant
Compliant
Compliant
Compliant*
Compliant*
Compliant*
Compliant*
Compliant*
25
Full temperature range
Compliance with
standards voltage
transient limit
Full temperature range
4
Compliance with
standards voltage
spike limit
*with companion
filter FGDS series
50 Ohms impedance
50 Ohms impedance
50 Ohms impedance
50 Ohms impedance
15 mJ energy content
Current in inhibit
mode
Output
Output voltage
Ui min. to max.
range
Full load
Nominal voltage in
normal operation
Nominal voltage in In low line
low line operation Input voltage
Nominal voltage in
In transient
transient
Input voltage
protection mode
Ui = 28VDC
Efficiency
Full load
Full temperature range
Output power range In
low line
operation
In
transient
operation
Minimum
Maximum
Nominal
Nominal
Minimum
Nominal
Minimum
Minimum
Maximum
Maximum
VDC
VDC
VDC
VDC
VDC
VDC
%
W
W
W
16
40
Ui - 0,6
see page 6
figure 1
see page 6
figure 3
96
see page 6
figure 5
9
36
Ui - 0,6
see page 6
figure 2
see page 4
figure 4
96
see page 6
figure 6
©
5
Gaia Converter FC97-012.01/10 Revision J
For locations, phone, fax, E-Mail see back cover
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