Data sheet: maxeta, Ifa series, Electrical data – TDK Maxeta iFA Series User Manual
Page 6
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
10
µF ceramic, and a 470µF low esr aluminum
capacitors located 2 inch away.
S
ee 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