Astec Modular Power Supply System
AMPSS
®
Gamma AK/BK60C
High Efficiency
Industry Standard
Series
100-150W Output Power
DC-DC Converter Module
Technical Reference Manual
Series Highlights
· Industry standard pin out
· 100-150W Output Power
· 100°C baseplate/case operating temperature
· Low output ripple and noise
· High Reliability - over 1 million hours MTBF
· Wide input voltage range
· Fixed switching frequency
· ExcellentTransient Response
· Designed to meetTelecom specifications
·
High Efficiency - up to 90%
Industry Standard Pin Out (High Efficiency) Series
Contents
Introduction ............................................................................................................ 3
Key Requirements .................................................................................................. 3
Safety Requirements .............................................................................................. 3
Bellcore Specifications- .......................................................................................... 3
Related Products ..................................................................................................... 3
Product Range......................................................................................................... 4
Electrical Specifications ........................................................... 5
Absolute Maximum Ratings – all models............................................................. 5
Specifications........................................................................................................... 5
Definitions................................................................................................................ 5
Pin Connections ...................................................................................................... 6
Insulation - all models ............................................................................................ 7
Transient Response - all models ............................................................................ 7
Electrical Specifications ......................................................................................... 8
Functional Description ............................................................. 9
Remote Sense (+SENSE, -SENSE) ........................................................................ 9
Enable Control (ENABLE) .................................................................................... 9
Output Voltage Adjustment (V ADJ) .................................................................... 9
Design Considerations ............................................................ 10
Input Bulk Capacitors.......................................................................................... 10
Remote Load ......................................................................................................... 10
Input Undervoltage Protection............................................................................ 10
Conducted EMI .................................................................................................... 10
Output Ripple and Noise ..................................................................................... 10
Input Fusing .......................................................................................................... 10
Overtemperature Protection ............................................................................... 11
Break Regulation .................................................................................................. 11
MTBF ..................................................................................................................... 11
Thermal Data ........................................................................................................ 11
Application Example .............................................................. 12
Mechanical Specifications ...................................................... 13
Heatsink Mounting Information ......................................................................... 14
Mechanical Requirements ................................................................................... 16
AMPSS
®
Reference Manual
Rev. 02 Jan 00
AK/BK60C High Efficiency Series DC-DC Converters
+IN
1
MOSFET
switcher
5
+OUT
-IN
4
9
-OUT
AUX
4
-INPUT
-OUTPUT
9
-SENSE
8
VADJ
7
3
CASE
Over-
voltage
protection
PWM
control
and
gating
ENABLE
2
Voltage
sensing
and
control
6
+SENSE
2
ENABLE
1
+INPUT
+SENSE
6
+OUTPUT
5
8
-SENSE
Primary side
Secondary side
7
V ADJ
Internal
temperature
sensor
Introduction
The AK/BK60C High Efficiency Series is an
isolated, single output DC to DC converter module,
providing up to 150W output. The Industry
Standard pin out series features full safety
isolation, low voltage primary side control and a
baseplate operating temperature of up to 100°C.
Safety Requirements
The modules will be safety approved to the follow-
ing standards :
UL:
cUL:
TUV:
CE:
UL1950
EN60950
CE Mark
Key Requirements
High Efficiency - 90% typical
-40°C to 100°C baseplate operating tempera-
ture (no derating).
Industry standard pin out
Low output ripple and noise ( 150mV max on
5V)
High capacitive load limit on start-up
Remote Sense Compensation
Reliability - 1 million hours MTBF min. at 50°C
baseplate temperature
Output Voltage Regulation to zero load
Fixed frequency switching (300KHz)
Output Voltage Adjust 80 -120% of nominal
Enable (high & low)
Case pin
Bellcore Specifications-
DC-DC converters conform to the standards
pertaining to power supplies contained in the Bellcore
Telecommunication specifications.
Related Products
FLTR100V10 and FLTR100V20 EMI filter.
AMPSS
®
Reference Manual
Rev. 02 Jan 00
!
Industry Standard Pin Out (High Efficiency) Series
Product Range
Mo d el Nu m b er
A K 6 0 C -0 4 8 L -0 2 1 F 2 0 H
A K 6 0 C -0 4 8 L -0 3 3 F 2 0 H
A K 6 0 C -0 4 8 L -0 5 0 F 2 0 H
B K 6 0 C -0 4 8 L -0 2 1 F 3 0 H
B K 6 0 C -0 4 8 L -0 3 3 F 3 0 H
B K 6 0 C -0 4 8 L -0 5 0 F 3 0 H
A K 6 0 C -0 4 8 L -0 2 1 F 2 0 H P
A K 6 0 C -0 4 8 L -0 3 3 F 2 0 H P
A K 6 0 C -0 4 8 L -0 5 0 F 2 0 H P
B K 6 0 C -0 4 8 L -0 2 1 F 3 0 H P
B K 6 0 C -0 4 8 L -0 3 3 F 3 0 H P
B K 6 0 C -0 4 8 L -0 5 0 F 3 0 H P
I N P U T V O L T A G E (V )
48
48
48
48
48
48
48
48
48
48
48
48
O U T P U T V O L T A G E (V )
2.1
3.3
5
2.1
3.3
5
2.1
3.3
5
2.1
3.3
5
O U T P U T P O W E R (W )
4 2 W (2 0 A )
6 6 W (2 0 A )
1 0 0 W (2 0 A )
6 3 W (3 0 A )
9 9 W (3 0 A )
1 5 0 W (3 0 A )
4 2 W (2 0 A )
6 6 W (2 0 A )
1 0 0 W (2 0 A )
6 3 W (3 0 A )
9 9 W (3 0 A )
1 5 0 W (3 0 A )
"
AMPSS
®
Reference Manual
Rev. 02 Jan 00
Electrical Specifications
Absolute Maximum Ratings all models
These ratings are intended as guidelines for absolute worst case operating conditions and are not to be
interpreted as recommended operating condition
G e n e ra l
C o n t in u o u s I n p u t V o lt a g e
I n p u t S u rg e V o lt a g e (1 s e c )
I s o la t io n , I n p u t t o O u t p u t
I s o la t io n I n p u t t o B a s e p la t e
I s o la t io n , O u t p u t t o B a s e p la t e
O p e ra t in g T e m p e ra t u re (B a s e p la t e )
S t a rt -u p T e m p e ra t u re
S t o ra g e T e m p e ra t u re
O p e ra t in g R e la t iv e H u m id it y (n o n -c o n d e n s in g )
S t o ra g e R e la t iv e H u m id it y (n o n -c o n d e n s in g )
A lt it u d e (O p e ra t in g )
A lt it u d e (S t o ra g e )
L e a d T e m p e ra t u re (s o ld e rin g 5 S e c o n d s )
4 8 V In p u t
75V
100V
1500VD C
1500VD C
500VD C
-4 0 t o 1 0 0 ° C
-5 5 ° C m in
-5 5 t o 1 0 5 ° C
1 0 % to 9 5 %
95% M ax
< 3000m
< 9000m
2 3 5 °C
Secondary Control Pins
+SENSE
(V
o
- 0.5) to (V
o
+ 0.5) VDC
-SENSE
-0.5 to +0.5 VDC
V ADJ
-0.5 to 7 VDC
ENABLE
0 to 20 VDC
Note : V
o
= module nominal output voltage
Electrical characteristics are guaranteed over the full baseplate temperature range (-40 to 100°C) and for
the full range of input voltage (V
I
) and for the full load range (0 to I
O
rated). Except where indicated ,
+SENSE and -SENSE to be connected to the output terminals at the point of measurement, Module is
enabled. All other pins are left floating.
Specifications
Definitions
V
I
, V
O
and I
O
are actual operating conditions, V
Inom
, V
Onom
and I
Orated
are nominal ratings.
AMPSS
®
Reference Manual
Rev. 02 Jan 00
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