40A at 50°C, 200LFM, no heat sink
36A at 60°C, 200LFM, no heat sink
• Wide output voltage trim range
• Basic insulation – 1500Vdc
• Negative remote on/off logic
• Industry standard output voltage trim
• Pre-bias startup capability
• Remote sense
• Constant switching frequency
• UL 60950 (US and Canada), VDE 0805,
CB scheme (IEC950)
• CE Mark (EN60950)
• Latched output over-voltage protection
3
The Powereta™ Series offers an industry
standard Double-P quarter brick high current
power module with true useable output
power. Its 91.5% full load efficiency (92.5%
at 35A/175W) and superior thermal
performance make the Powereta™ series of
power modules ideally suited for tight space
and power-hungry ATCA applications in
demanding thermal environments. This
rugged building block is designed to serve as
the core of your high reliability system. A
wide output voltage trim range, -20 to +10%,
and remote sensing are standard features
enhancing versatility.
•Auto-recovery full protections:
o Input under and over voltage
o Output over-current
o Output short circuit
o Thermal limit
Measured at the location specified in the thermal
measurement figure. Maximum temperature varies
with model number, output current, and module
orientation – see curve in thermal performance
section of the data sheet.
Input Characteristics:
Unless otherwise specified, specifications apply over all Rated Input Voltage, Resistive Load, and Temperature conditions.
Characteristic Min Typ Max Unit Notes & Conditions
Operating Input Voltage 36 48 75 Vdc
Turn-on Voltage --- 34.7 --- Vdc
Turn-off Voltage --- 32.3 --- Vdc
Hysteresis --- 2.4 --- Vdc
Startup Delay Time from application of input
voltage
Startup Delay Time from on/off --- 3 --- mS Vo = 0 to 0.1*Vo,nom; Vin = Vi,nom,
Output Voltage Rise Time --- 25.5 --- mS Io=Io,max,Tc=25˚C, Vo=0.1 to 0.9*Vo,nom
Input Reflected Ripple --- 35 --- mApp See input/output ripple and noise
Input Ripple Rejection --- 65 --- dB @120Hz
* Engineering Estimate
Caution: The power modules are not internally fused. An external input line normal blow fuse with a maximum value of 15A is required; see the
Safety Considerations section of the data sheet.
50A output --- --- 8.5 A Vin = 0 to Vin,max, Io=Io,max, Vo=Vo,nom Maximum Input Current
Line Regulation --- 1 10* mV Vin=Vin,min to Vin,max, Io and Tc fixed
Load Regulation --- 1 10* mV Io=Io,min to Io,max, Vin and Tc fixed
Temperature Regulation --- 5 50 mV Tc=Tc,min to Tc,max, Vin and Io fixed
Output Current 5 --- 50 A
Output Current Limiting Threshold --- 55 --- A Vo = 0.9*Vo,nom, Tc<Tc,max
Short Circuit Current --- 2 --- A Vo = 0.25V, Tc = 25
--- 50 100*
Output Ripple and Noise Voltage
--- 13.5 --- mVrms
mVpp
Over all rated input voltage, load, and
temperature conditions to end of life
At loads less than Io,min the module will
continue to regulate the output voltage, but
the output ripple may increase slightly
Vin=48V, Io ≥ Io,min, Tc=25˚C. Measured
across one 0.1uF, one 1.0 uF, and one
47uF ceramic capacitors, and one 1000uF
electrolytic capacitor located 2 inches away
– see input/output ripple measurement
figure; BW = 20MHz
Output Voltage Adjustment Range 80 --- 110 %Vo,nom
Output Voltage Sense Range --- --- 10 %Vo,nom
---
---
400
150
Dynamic Response:
Recovery Time to 10% of Peak Deviation
Transient Voltage
Output Voltage Overshoot during startup 0 0 --- mV Vin=Vin,nom; Io=Io,max,Tc=25˚C
Switching Frequency --- 145 --- kHz Fixed
Output Over Voltage Protection 5.8* 6.1 6.5* V
External Load Capacitance 1000 ---
Isolation Capacitance --- 1000 --- pF
Isolation Resistance 15 --- --- MΩ
Vref 1.225 V Required for trim calculation
* Engineering Estimate
---
---
25,000
µS
mV
†
uF
Vin ≥ 38V for trim-up operation
di/dt = 1A/uS, Vin=Vin,nom; load step from
50% to 75% of Io,max, Tc=25˚C with at
least one 1.0 uF, one 47uF ceramic
capacitors, and one 1000uF electrolytic
capacitor across the output terminals
Cext,min required for the 100% load dump.
Minimum ESR > 2 mΩ
† Contact TDK Innoveta for applications that require additional capacitance or very low ESR