Technical Reference Note Doc #1980 TRN-AA25N-048L-033S Electrical characteristics are guaranteed over the ambient temperature range (-40 to 60°C), for the full range of input voltage (VI), and for the full load range (I0 min to I 0 rated) unless otherwise noted. VI , Vo and I0 are actual operating conditions, Io rated is nominal rating. Electrical Specifications - AA25N-048L-033S Symbol Parameter 36-75V in; 3.3V / 6A out Conditions Min Typ Max Units 36 48 75 V Input Characteristics VI Input voltage PIL No load input power VI=VInom IIN Input current Per ETS300-132.2 VIN<36Vdc (See note 1) CIN Input capacitance (internal) II Input ripple current 0.25 W 150 VI=Vnom, Io=Io rated %IIn at Vnom 1.8 µF 10 mA p-p Output Characteristics PO max Total output power VO1 nom VO2 nom VO3 nom Nominal (factory set) output voltage Output 1 Output 2 Output 3 Rated output current Output 1 Output 2 Output 3 TAmbient= 60°C IO1 rated IO2 rated IO3 rated Noise and ripple Output 1 Output 2 Output 3 Pk-pk, 20MHz bandwidth with a 0.1 µF ceramic capacitor connected across +V out and -V out. Load regulation VO1 VO2 VO3 Line regulation VO1 VO2 VO3 19.8 W 3.333 V V V 6.0 A A A 50 mV mV mV From 10% to 100% of rated output current 0.75 %VO1 %V02 %V03 VImin to VImax IO = IO typ 0.1 %V01 %V02 %V03 3.267 3.3 0.6 35 Current limit IO1 lim IO2 lim IO3 lim 8.3 Temperature coefficient Per °C baseplate temperature ±0.02 Input - Output Capacitance η Efficiency Technical Reference Note A A A 100 VI = 48V, IO = IO rated 79 %VO nom/°C pF 80.5 % 6.23.98 1 OF 4 Electrical Specifications - AA25N-048L-033S Symbol Parameter 36-75 Vin; 3.3 / 6A Conditions Min Typ DOC# 1980 Max Units Output Characteristics - continued ton Turn-on time VI = 0 to VInom 75 mS VI = 0 to VI min 100 mS VI = 0 to VI max 50 mS 2% 250µS %VO1 nom Transient response (VO1 only) positive or negative step IO = 25 to 75% IO rated@ 15 µs/A Input-output isolation resistance 1500 VDC Input-case isolation resistance N/A Output-case isolation resistance 1500 VDC Isolation 50 M Ohm M Ohm 50 M Ohm Control Signals VOut Output Voltage 2.5 < Vc <5.5 or open circuit VC < 0.8V V adj Output Voltage External resistor attached 3.3 0 3.14 3.3 V V 3.63 V Environmental Tbaseplate Overtemperaure shutdown Operating temp exceeds max rating 105 Figure 1 .52 (13.2) Pin Assignment .015 (.38) MIN. .040 (1.01) DIA. TYP. .20 (5.0) Single Output 2.0 (50.8) 1.80 (45.72) .10 (2.54) .40 (10.16) 5 .90 (22.86) 2.00 (50.8) .40 (10.16) 6 2.00 (50.8) .40 (10.16) 1 1. 2. 3. 4. 5. 6. 7. 8. +Vin -Vin No pin Enable No pin +3.3V Out +3.3V Rtn Trim .40 (10.16) 2 7 3 .40 (10.16) 4 8 Bottom View All dimensions are inches (mm) 2 OF 4 6.23.98 Technical Reference Note °C Electrical Specifications - AA25N-048L-033S 36-75 Vin; 3.3 / 6A Efficiency DOC# 1980 Output Power Derating (Typ) Figure 2 Figure 3 Derating Curve Vin= 36.0 Vin= 48.0 Vin= 75.5 Efficiency vs Load Current AA20M-048L-033S 84.0% 30 82.0% 25 80.0% 20 Output Power (Watts) Efficiency 78.0% 76.0% 74.0% 72.0% 70.0% 68.0% 10 66.0% 5 64.0% 62.0% 0.60 1.20 1.80 2.40 3.00 3.60 4.20 Load Current - Amps 4.80 5.40 6.00 Output Regulation vs. Temperature and Loading (Typ) Figure 4 0 -40 3.317 Output Voltage - Volts 3.317 3.292 3.284 0 10 20 30 40 50 60 Ambient Temperature (Deg. Celsius) 70 80 90 100 110 Figure 5 Vin= 36.0 Vin= 48.0 Vin= 75.5 3.308 3.300 3.292 3.284 3.275 3.275 3.267 -60 -10 Line And Load Regulation AA25N-048L-033S@ 20 Degrees C 3.333 3.325 3.300 -20 (20°C Typ) 3.325 3.308 -30 Output line and load regulaton Min Load Nom Load Max Load Output Voltage VS. Temperature AA25N-048L-033S 3.333 Output Voltage - Volts Ambient air is measured 1/2" from unit. Max. baseplate @ F.L. = 105OC 15 -40 -20 0 20 40 Ambient Temperature - Degrees C Technical Reference Note 60 80 3.267 0.6 1.2 1.8 2.4 3.0 3.6 4.2 Load Current - Amps 4.8 5.4 6.23.98 6.0 6.6 3 OF 4 Electrical Specifications - AA25N-048L-033S 36-75 Vin; 3.3 / 6A DOC# 1980 Turn on Characteristics (Typ) Figure 6 Output Trim Methods Figure 7 Output voltage decrease 4 OF 4 Output voltage increase Adjust output voltage 5 5 5 6 6 6 7 7 7 8 8 8 6.23.98 Technical Reference Note