PAF600F280-28 TDK Corporation, PAF600F280-28 Datasheet - Page 40

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

PAF
B-132
PAF
 I.O.G. signal (IOG terminal)
Normal or abnormal operation of the power module can be
monitored by using the IOG terminal. Output of this signal
monitor is located at secondary side (output side) and is
an open collector output.
This signal is LOW when inverter is normally operating and
HIGH when inverter stops or when inverter is operating ab-
normally. (Maximum sink current is 5mA, maximum applied
voltage is 35V)
Ground for the IOG terminal is the-S terminal.
 Auxiliary power supply for externalsignals (AUX terminal)
For AUX terminal, output voltage value is within 11-
14VDC ranges, maximum output current is 20mA. Ground
for the AUX terminal is –S terminal.
Avoid short circuit of AUX terminal with other terminals as
this would lead to power module damage.
 Output Current Monitor Signals (IMON terminal)
By using the IMON terminals, output current condition can
be monitored.
Output generates 0V in no load and 2.5V(typ value) in full
load.
 Operating Ambient temperature
There is no restriction on mounting direction but there
should be enough consideration for airflow so that heat
does not accumulate around the power module vicinity.
Determine external components configuration and mount-
ing direction on PCB such that air could flow through the
heatsink at forced cooling and convection cooling.
By maintaining actual baseplate temperature below 85℃,
operation is possible.
For details on thermal design, refer to power module Ap-
plication Notes “Thermal Design”.
Note) Maximum baseplate temperature is 85℃. For worst case
For better reliability, derating of baseplate temperature is
recommended.
operating condition, verify baseplate temperature at mea-
surement point indicated in Fig. 17-1.
400F280
＋S
＋V
−V
−S
＋S
＋V
−V
−S
Fig.13-2 ±Output Series Operation
Fig.17-1 Temperature Measurement
+
+
Temperature
Measuring Point
of Baseplate
＋
−
＋
−
Load
Load
 Operating Ambient Humidity
Take note that moisture could lead to power module abnor-
mal operation or damage.
 Storage Ambient Temperature
Abrupt temperature change would cause condensation
build-up that leads to poor solderability of terminals of the
power module.
 Storage Ambient Humidity
High temperature and high humidity change would cause
the terminals on the module to oxidize. The quality of the
solder will become worse.
 Cooling Method
Operating temperature range is specified by the baseplate
temperature. Therefore, several method of heat dissipation
is possible.
For details on thermal design, refer to power module Appli-
cation Notes “Thermal Design” .
 Baseplate Temperature vs. Output Voltage Drift
Output voltage drift is defined as the rate of voltage
change when baseplate temperature only is changed dur-
ing operation.
 Withstand Voltage
This power module is designed to have a withstand volt-
age of 2.5kVAC between input and baseplate, and 3kVAC
between input and output for 1 minute.
When conducting withstand voltage test during incoming
inspection, be sure to set the current limit value of the
withstand voltage testing equipment to 20mA.
This power module is designed to have a withstand value
of 500VDC between output and baseplate for 1 minute.
When conducting withstand voltage test during incoming
inspection, be sure to apply DC voltage.
Be sure to avoid conducting test with AC voltage because
this would cause power module damage.
Furthermore, avoid throw in or shut off of the testing equip-
ment when applying or when shutting down the test volt-
age. Instead, gradually increase or decrease the applied
voltage. Take note especially not to use the timer of the
test equipment because when the timer switches the ap-
plied voltage off, impulse voltage which has several times
the magnitude of the applied voltage is generated causing
damage to the power module.
Short the output side as shown in the diagram below.
Fig.23-1 Withstand Voltage Test for Input-Baseplate
Withstand
Voltage tester
Withstand
Voltage tester
2.5kVAC 1minute (20mA)
・All specifications are subject to change without notice.
＋Vin
−Vin
＋Vin
−Vin
CNT
SG
Base plate
CNT
SG
OVPALM
OVTRM
IMON
TRIM
TRIM
OVP
AUX
＋V
−V
IOG
＋V
−V
＋S
−S
＋S
−S
PC
PC