PAF600F280-28 TDK Corporation, PAF600F280-28 Datasheet - Page 41

• Manufacturer Part Number: PAF600F280-28
• Description: 28V@21.5A
• Manufacturer: TDK Corporation

・All specifications are subject to change without notice.
PAF
 Insulation Resistance
Use DC insulation tester (MAX 500V) between output
and baseplate. Insulation resistance value is 100MΩ and
above at 500VDC applied voltage. Make sure that during
testing, the isolation testers does not produce a high pulse
1 INTRODUCTION
PAF400F280 series equally shares current by connecting
each PC terminal and attaching a diode at output of each
power module in parallel.
When load current can not be supplied by only a unit of
power module, the output can be enhanced. Also, the reli-
ability of the system can be improved by reduction of out-
put power.
For power supply system requiring high reliability, it is pos-
sible to improve the reliability of the system by using N+1
units for load of N units.
Fig.23-3 Withstand Voltage Test for Output-Baseplate
Fig.23-2 Withstand Voltage Test for Input-Output
400F280
Isolation Tester
Withstand
Voltage tester
Withstand
Voltage tester
Isolation Tester
Withstand
Voltage tester
Withstand
Voltage tester
3kVAC 1minute (20mA)
500VDC 1minute
CNT
SG
＋Vin
−Vin
＋Vin
−Vin
Base plate
CNT
SG
＋Vin
−Vin
＋Vin
−Vin
Base plate
CNT
SG
＋Vin
−Vin
＋Vin
−Vin
Base Plate
CNT
SG
Base plate
CNT
SG
Base plate
CNT
SG
Base Plate
OVPALM
OVPALM
OVPALM
OVPALM
OVPALM
OVPALM
OVPALM
OVTRM
OVTRM
OVTRM
OVTRM
OVTRM
OVTRM
OVTRM
OVTRM
IMON
IMON
IMON
IMON
IMON
IMON
IMON
IMON
TRIM
TRIM
OVP
TRIM
TRIM
OVP
TRIM
TRIM
OVP
OVP
OVP
OVP
AUX
AUX
AUX
AUX
AUX
AUX
AUX
AUX
IOG
IOG
IOG
＋V
−V
IOG
＋V
−V
IOG
＋V
−V
IOG
＋V
＋S
−V
−S
＋V
＋S
−V
−S
＋V
＋S
−V
−S
＋S
−S
＋S
−S
＋S
−S
PC
PC
PC
PC
PC
PC
3. Parallel Operation
when the applied voltage is varied. Ensure that the tester
is fully discharged after the test.
 Vibration
Refer to PAF400F280 series Application Notes “Mounting
Method” section.
 Shock
Withstand shock value is defined to be the value at Den-
sei-Lambda shipment and packaging conditions.
 Others
The performance of a system with Power Module is influ-
enced according to various conditions -- PCBs, chassis,
mechanics, heat dissipation. Please evaluate actual prod-
ucts, and confirm its performance. (For details, please refer
Power Module Application Note.)
2 PRECAUTION IN PARALLEL OPERATION
Basic cautions and warnings in parallel operation are as
follows.
● Attach a diode at output of each power module.
● Available to use 20 units maximum in identical model
● Accuracy of output voltage adjustment shall be within
● Ground of PC terminal (signal ground) is –S terminal.
● Before restart, the output should be discharged suffi-
● Use same length and size of output load wire between
● For IOG, AUX and OVPALM usage, refer to explanation
(same output voltage).
±1% .
Avoid using power line as return ground.
ciently after line or control is turned off. (For brown-out
at light loads, add discharging resistor at output.)
power modules in parallel operation and loads.
in the manual.
Isolation Tester
Over 100MΩ at 500VDC
Fig.24-1 Isolation Test
CNT
SG
＋Vin
−Vin
Base Plate
OVPALM
OVPALM
OVTRM
OVTRM
IMON
IMON
TRIM
OVP
AUX
AUX
IOG
＋V
−V
＋S
−S
PC
B-133
PAF