TDK iFA Series manual Electrical Data, IFA24021A280V- 000 through 026 28V, 21.5A, 602W Output

Advance Data Sheet: MaxetaTM iFA Series

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
Output Ripple and Noise Voltage	---	60	150*	mVpp	Vin=48V, Io≥ Io,min, Tc = 25˚C, with a 0.1µF, a
					10µF ceramic, two 220µF low esr aluminum
					capacitors located 2 inch away. See input &
	---	13	50*	mVrms
					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:					di/dt = 0.1A/uS, Vin=Vin,nom; Tc = 25˚C, load
					step from 50% to 75% of Io,max.
Settling Time to 10% Peak Deviation	---	120	---	uS	With at least a 10uF ceramic capacitor and two
					220uF low esr aluminum or tantalum capacitors
Peak Voltage Deviation	---	200	---	mV	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 > 1.5mU
Isolation Capacitance	---	1000	---	pF
Isolation Resistance	15	---	---	MU
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

©2005 TDK Innoveta Inc.		￿ (877) 498-0099
iFA Advance Datasheet	6/6/2005	6/18