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Data Sheet: Xeta
iHG48070A033V, 3.3V/70A Output Half Brick Series
©2008 TDK Innoveta Inc.
iHG Datasheet 2008-05-15 Revision 1.1
℡
(877) 498
-
0099
6/16
Electrical Data (continued):
Operating at Tc = 25˚C unless otherwise specified
Characteristic Min Typ Max Unit Notes & Conditions
Output Voltage Initial Setpoint 3.25 3.3 3.35 Vdc Vin=Vin,nom; Io=Io,max
Output Voltage Tolerance 3.2 --- 3.4 Vdc Over all rated input voltage, load, and
temperature conditions to end of life
Efficiency --- 90 --- % Vin=Vin,nom; Io=Io,max
Line Regulation --- 3 10* mV Vin=Vin,min to Vin,max
Load Regulation --- 1 10* mV Io=Io,min to Io,max
Temperature Regulation --- 20 50* mV Tc=Tc,min to Tc,max
Output Current 0 --- 70 A At Io < 20% of Io,max, the load transient
performance may degrade slightly
Output Current Limiting Threshold --- 82 --- A
Vo = 0.9*Vo,nom, Tc < Tc,max
Short Circuit Current
--- 2 --- A
Vo = 0.25V, Tc = 25C (hiccup mode)
--- 25 50* mVpp Output Ripple and Noise Voltage
--- 5.5 --- mVrms
Vin=48V and Tc=25˚C. Measured across one
10uF, one 0.47uF, one 0.1uF ceramic
capacitors, and one 220uF electrolytic
capacitor – see input/output ripple
measurement figure; BW = 20MHz
Output Voltage Adjustment Range 50 --- 110 %Vo,nom
Output Voltage Sense Range --- --- --- %Vo,nom
Dynamic Response:
Recovery Time
Transient Voltage
---
---
200
70
---
---
µS
mV
Vin=Vin,nom; load step from 50% to 75% of
Io,max, di/dt = 0.1A/uS, with at least one
0.1uF, one 0.47uF, one 10uF ceramic
capacitors, and 220uF electrolytic capacitor
across the output terminals
For applications with large step load changes
and/or high di/dt load changes, please
contact TDK Innoveta for support.
Output Voltage Overshoot during startup 0 0 0 mV Io=Io,max
Switching Frequency --- 260 --- kHz Fixed
Output Over Voltage Protection
3.8* 4.1 4.4*
V All line, load, and temperature conditions
External Load Capacitance 230 --- 40,000** uF All charge and pre-bias start conditions.
Cext,min required for the 100% load dump.
Minimum ESR > 2 mΩ
Isolation Capacitance --- 2000 --- pF All line, load, and temperature conditions
Isolation Resistance 15 --- ---
M
Ω
All line, load, and temperature conditions
Vref 1.225 V Required for trim calculation
* Engineering Estimate
** Contact TDK Innoveta for applications that require additional capacitance