ATC210 Dual Series | 210 W DC-DC
Intermediate Bus Converters
Common Protection/Control
Characteristic
Overtemperature protection
(IBC)
Symbol
Top
Min
120
Typ
125
Max
130
Units
ºC
Notes and Conditions
The IBC shuts down, resulting in
both shut down of 3.3 V and 12 V.
Once the substrate temperature
has decreased by 5 ºC, the IBC
turns back on enabling both
voltages
Overtemperature protection
(main unit)
Primary side threshold
Secondary side threshold
Primary side hysterisis
Secondary side hysterisis
Tpri
Tsec
Tpri_hys
Tsec_hys
107
102
20
10
ºC
ºC
ºC
ºC
Temperature sensors are on
primary and secondary side.
Once the thresholds have been
exceeded, the 12 V output is
disabled, but the 3.3 V remains.
The 12 V output can only be
enabled by cycling power or
through the I
2
C interface
provided that the temperature
has decreased below its
hysterisis level. Adjustable
primary and secondary
thresholds are also provided and
can be set lower than the fixed
thresholds. See Application
Note 205.
Reliability and Service Life
Characteristic
Mean time between failure
Symbol
MTBF
Min
Typ
2,008,000
Max
Units
Hours
Notes and Conditions
Telcordia SR-332
Vin = Vin (nom); Iout = Iout
(max); ambient 25 ºC;
ground benign environment
Other Specifications
Characteristic
Switching frequency
Weight
Symbol
Fsw
Min
Typ
400
80
Max
Units
kHz
g
Notes and Conditions
As determined by IBC
Environmental Specifications
Characteristic
Thermal Performance
Symbol
Top
Min
-25
Typ
Max
85
Units
ºC
Notes and Conditions
See derating curves (Figures 1,2)
5
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File Name: atc210.pdf Rev: 16 Aug 2006
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