North America (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662
2
Special Features
Electrical Specs
Special Features
100 Watts
AK45C-20/
AV45C-20
High Efficiency
•High efficiency
•Industry standard package
1.45" x 2.28" x 0.5"
•High capacitive load limit on start-up
•Industry Standard features: UVLO, OVP, OCP,
OTP, Output Enable, Differential Remote
Sense
•Regulation to zero load
•Fixed frequency switching
•Basic insulation
Input
Input Range 36 to 75 VDC
Input Surge 100V /100ms
Efficiency 5V @ 89% Typ
3.3V @ 86% Typ
2.5V @ 84% Typ
Output
Load Regulation 0.2% typical down to no load
(output 5V and above)
10mV typical down to no load
(output below 5V)
Line Regulation 0.1% typical
(output 5V and above)
10mV typical
(output below 5V)
Voltage Tolerance ±1%
Noise/Ripple 100mV max typ
Remote sense Up to 0.5V
Transient Response 5% max deviation with 25% to 75% full
(output 5V and above)
200mV (output below 5V)
500µs (max) recovery
Overvoltage Protection 130% nominal output
(output 5V and above)
160% nominal output
(1.8V and 2V)
140% nominal output
(3.3V output)
Current Limit 115% nominal output
Switching Frequency 375kHz (typ)
Control
Voltage Adjust 90 to 110% Vo (1.8 V)
80 to 110% Vo (2.5, 3.3, 5 V)
Enable TTL compatible
(Positive or Negative enable options)
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
AK45C:
UL,cUL 1950
TUV EN60950
Basic Insulation
AV45C:
UL 1950
CSA 22.2-950-95
TUV EN60950
Operational Insulation
Environmental
Total Power: 100 Watts
Input Voltages: 48V
No. of Outputs: Single
Safety
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EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44 (1384) 843-355
AMERICAS
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
3
Ordering Information
www.astecpower.com
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
Input Output Output Efficiency2 Model Number
Voltage Voltage Current
48V 1.5V 20A 85% Min AV45C-048L-015F20HA (N) -(6)(8)
48V 1.8V 20A 85% Min AV45C-048L-050F20HA (N) -(6)(8)
48V 3.3V 20A 89% Min AV45C-048L-050F20HA (N) -(6)(8)
48V 5V 20A 90% Min AV45C-048L-050F20HA (N) -(6)(8)
48V 1.8V 20A 81% min (84% typ) AK45C-048L-018F20HA (N) -(6)(8)
48V 2.5V 20A 84% min (86% typ) AK45C-048L-025F20HA (N) -(6)(8)
48V 3.3V 20A 86% min (88% typ) AK45C-048L-033F20HA (N) -(6)(8)
48V 3.3V 20A 86% min (88% typ) AK45C-048L-033F20HAN-6T7
OPTIONS:
"N" = designates Negative Logic Enable (default is Positive Enable with no suffix “N” required)
“-6” = designates 3.7mm pin length (default pin length is 5mm with no suffix required)
“-8” = designates 2.8mm pin length
Pin Assignments
Single Output
1. +Vin
2. No Pin
3. Enable
4. No Pin
5. - VIN
6. -Vout
7. - Sense
8. Trim
9. +Sense
10. +Vout
Notes:
1. 20 MHz bandwidth. External 10 uF tant. capacitor in
parallel with 1 uF ceramic capacitor placed across
the output and secondary return ground.
2. Efficiency measurements are typical values taken at
full load, nominal line and TA= 25°C.
3. All specifications are typical at nominal line, full load
and TA= 25°C unless otherwise noted.
4. All specifications subject to change without notice.
5. Mechanical drawings are for reference only.
Dimensions are in inches [millimeters]. Pin
placement tolerance ± 0.005 [0.127]. Mechanical
Tolerance ± 0.02 [0.5]. ∅ = 0.060” for Pins 6&10, the
rest are ∅ = 0.040”.
6. Technical Reference Notes should be consulted for
detailed information when available.
7. Tuned model for specific application.
8. Warranty 1yr.
Astec reserves the right to make changes to the information
contained herein without notice and assumes no liability as a
result of its use and application. (REV 02: OCTOBER 28, 2004)
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