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Data Sheet: Maxeta
TM
iFA Series
©2002-2006 TDK Innoveta Inc.
iFA 28V 600W Advance Datasheet 8/3/2006
℡
(
877
)
498-0099
6/19
Electrical Data:
iFA48021A280V- 000 through - 003: 28V, 21.4A Output
Characteristic Min Typ Max Unit Notes & Conditions
Output Voltage Initial Set-point
27.51 28 28.49 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C
Output Voltage Tolerance
27.16 28.84 Vdc Over all rated input voltage, load, and
temperature conditions to end of life
Efficiency
--- 90.5 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C
Line Regulation --- 28 56 mV Vin=Vin,min to Vin,max, Io and Tc fixed
Load Regulation --- 28 56 mV Io=Io,min to Io,max, Vin and Tc fixed
Temperature Regulation --- 100 300* mV Tc=Tc,min to Tc,max, Vin and Io fixed
Output Current
3.75 --- 21.4 A At loads less than Io,min the module will
continue to regulate the output voltage, but the
output ripple may increase
Output Current Limiting Threshold
22* 24 26* A Vo = 0.9*Vo,nom, Tc<Tc,max, Tc = 25˚C
Short Circuit Current
--- 0.5 --- A Vo = 0.25V, Tc = 25˚C
--- 135
250* mVpp
Output Ripple and Noise Voltage
--- 20 50* mVrms
Vin=48V, Io≥Io,min, Tc = 25˚C, with a 0.1µF, a
10µF ceramic, and a 470µF low esr aluminum
capacitors located 2 inch away.
See input &
output ripple measurement figure; BW = 20MHz
Output Voltage Adjustment Range 60 --- 110 %Vo,nom
Po≤Po,max, refer to “Output Voltage
Adjustment” figure for Vin,min requirement
Remote Output Voltage Sense Range 0.5* --- --- Vdc
Dynamic Response:
Settling Time to 10% Peak Deviation
Peak Voltage Deviation
---
---
0.5
450
---
---
mS
mV
di/dt = 0.1A/uS, Vin=Vin,nom; Tc = 25˚C, load
step from 50% to 75% of Io,max.
With at least a 10uF ceramic capacitor and a
470uF low esr aluminum or tantalum capacitor
across the output terminals.
Output Voltage Overshoot during Startup 0 0 600* mV Io=Io,max,Tc=25˚C
Switching Frequency --- 175 --- kHz Fixed
Output Over Voltage Protection 31.9* 34.2 35.5* V
External Load Capacitance 450 --- 6,000 ** uF
Minimum ESR > 1mΩ
Isolation Capacitance --- 1000 --- pF
Isolation Resistance 10 --- --- MΩ
Load Share Accuracy -10 --- +10 % 50% to 100% rated load current
Power Good Pin Max Applied Voltage --- --- 35 Vdc Max sink current 5mA
Auxiliary Output Voltage 7.5* 10 13.5* Vdc
Max Aux pin current ≤ 20mA
Referenced to sense(-) pin.
* Engineering Estimate
** Contact Innoveta for applications that require additional capacitance or capacitors with very low esr