North America (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211Asia (HK): 852-2437-96621
Special Features
Electrical Specs
50 Amps
• Industry standard Quarter Brick package
1.48" x 2.30" x 0.38"
• Openfrmae low profile construction
• High capacitive load start-up
• Regulation to zero load
• Fixed frequency switching for EMI predictability
• Industry Standard Features: Input UVLO with
hysteresis, Enable, OCP, OCP, OTP, Output
Voltage Trim, Differential Remote Sense
• Meets Basic Insulation
Input
Input Range 36 to 75 VDC
Input Surge 100V /100ms
Efficiency 3.3V @ 91% (typical)
Output
Line / Load < 0.3% Vo (typical)
Regulation
Output Current up to 50A max
(3.3V at 40A max)
Noise/Ripple1 40mVPK-PK (typical)
Remote sense Up to 10% of Vo
Transient Response 100mV (typ) deviation
50% to 75% Load change
250µs (typ) recovery
Overvoltage Protection 130% typ for Vo < 3.3V
125% typ for 3.3V
Over Current Protection 120% Iout typ (autorecovery)
Over Temperature 115C average PCB temperature
Protection (autorecovery)
Switching Frequency 480kHz
540kHz (2.5V output)
Isolation Voltage 1500Vdc
Control
Voltage Voltage Trim ±10% VO,NOM
Enable Postive or Negative Logic options
Operating Ambient Temperature: -40°C to +85°C
Storage Temperature: -40°C to +125°C
MTBF: > 1 million hours
UL, cUL 60950
TUV EN60950
Environmental
Total Power: 132W
Input Voltages: 48V
No. of Outputs: Single
Safety
ALQ50
High Efficiency Quarter Brick