Advance Data Sheet: Maxeta
TM
iFA Series
©2005 TDK Innoveta Inc.
iFA Advance Datasheet 6/6/2005
℡
(877) 498-0099
6/18
Electrical Data:
iFA24021A280V- 000 through - 026: 28V, 21.5A, 602W Output
Characteristic
Min
Typ
Max
Unit
Notes & Conditions
Output Voltage Initial Set-point
27.30
28
28.42
Vdc
Vin=Vin,nom; Io=Io,max; Tc = 25˚C
Output Voltage Tolerance
27.02
28.70
Vdc
Over all rated input voltage, load, and
temperature conditions to end of life
Efficiency
---
89
---
%
Vin=Vin,nom; Io=Io,max; Tc = 25˚C
Line Regulation
---
20
56
mV
Vin=Vin,min to Vin,max, Io and Tc fixed
Load Regulation
---
10
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
0.22
---
21.5
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*
25
---
A
Vo = 0.9*Vo,nom, Tc<Tc,max, Tc = 25˚C
Short Circuit Current
---
1.4
---
A
Vo = 0.25V, Tc = 25˚C
---
60
150*
mVpp
Output Ripple and Noise Voltage
---
13
50*
mVrms
Vin=48V, Io
≥
Io,min, Tc = 25˚C, with a 0.1
µ
F, a
10
µ
F ceramic, two 220
µ
F 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
---
---
120
200
---
---
uS
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 two
220uF low esr aluminum or tantalum capacitors
across the output terminals.
Output Voltage Overshoot during Startup
0
0
---
mV
Io=Io,max,Tc=25˚C
Switching Frequency
---
150
---
kHz
Fixed
Output Over Voltage Protection
31.9
34
35.5*
V
External Load Capacitance
450
---
7,000 **
uF
Minimum ESR
>
1.5mΩ
Isolation Capacitance
---
1000
---
pF
Isolation Resistance
15
---
---
MΩ
Load Share Accuracy
---
---
---
%
Optional feature
Power Good Pin Max Applied Voltage
---
---
---
Vdc
Optional feature
Auxiliary Output Voltage
---
---
---
Vdc
Optional feature
* Engineering Estimate
** Contact TDK Innoveta for applications that require additional capacitance or capacitors with very low esr
