100 Watts
AK45C-20/
AV45C-20
High Efficiency
Total Power:
Input Voltages:
No. of Outputs:
100 Watts
48V
Single
Electrical Specs
Input
Input Range
Input Surge
Efficiency
36 to 75 VDC
100V /100ms
89% @5Vo Typ
86%@3.3Vo Typ
84%@2.5Vo Typ
Output
Load Regulation
0.2% typical down to no load
(output 5V and above)
10mV typical down to no load
(output below 5V)
0.1% typical
(output 5V and above)
10mV typical
(output below 5V)
±1%
100mV max typ
Up to 0.5V
5% max deviation with 25% to 75% full
(output 5V and above)
200mV (output below 5V)
500µs (max) recovery
130% nominal output
(output 5V and above)
160% nominal output
(1.8V and 2V)
140% nominal output
(3.3V output)
115% nominal output
375kHz (typ)
Line Regulation
Special Features
• High efficiency
• -40°C to +100°C Baseplate
operating temperature
(with no derating)
• Industry standard package
1.45" x 2.28" x 0.5"
• High capacitive load limit on start-up
• Remote sense compensation
• Basic insulation
• Regulation to zero load
• Fixed frequency switching (375kHz)
Voltage Tolerance
Noise/Ripple
Remote sense
Transient Response
Overvoltage Protection
Environmental
Operating case temperature range:
-40°C to +100°C
Storage temperature: -55°C to +105°C
Overtemperature protection: 110°C typical
MTBF: > 1 million hours
Current Limit
Switching Frequency
Control
Voltage Adjust
Enable
90 to 110% Vo (1.8 V)
80 to 110% Vo (2.5, 3.3, 5 V)
TTL compatible
(positive & negative enable options)
Safety
AK45C:
UL,cUL 1950
TUV
EN60950
Basic Insulation
AV45C:
UL
1950
CSA
22.2-950-95
TUV
EN60950
Operational Insulation
2
North America (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211Asia (HK): 852-2437-9662
AMERICAS
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44 (1384) 843-355
ASIA
Units 2111-2116, Level 21
Tower1, Metroplaza
223, Hing Fong Road
Fwai Fong, New Territories
Hong Kong
Telephone: 852-2437-9662
Facsimile: 852-2402-4426
Ordering Information
Input
Voltage
48V
48V
48V
48V
48V
48V
48V
Output
Voltage
1.5V
1.8V
3.3V
5V
1.8V
2.5V
3.3V
Output
Current
20A
20A
20A
20A
20A
20A
20A
Efficiency
85% Min
85% Min
89% Min
90% Min
81% min (84% typ)
84% min (86% typ)
86% min (88% typ)
Model Number
AV45C-048L-015F20HA
AV45C-048L-018F20HA
AV45C-048L-033F20HA
AV45C-048L-050F20HA
AK45C-048L-018F20HA
AK45C-048L-025F20HA
AK45C-048L-033F20HA
NOTES:
Enable Function
"N" = negative logic enable (without "N" = positive enable)
AK45C Product Designed with Basic Insulation. AV45C product Designed with Operational Insulation
Pin Assignments
Single Output
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
-Vin
No Pin
Enable
No Pin
+ Vin
Rtn
- Sense
Trim
+Sense
+Vout
Note: Pins 4 & 8 are .062" dia.
All other pins are .040" dia.
Notes:
Nominal values apply with sense pins
connected to+Vout
and Ground Return with other control pins
unconnected.
www.astec.com Rev02: January 2004
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