SXA10
ATC210 Dual Series |
Series |
W
15W DC-DC
210 DC-DC
Intermediate Bus Converters
Signal Electrical Interface Contd.
Characteristic - Signal Name Symbol
Interrupt (output only) pin 18
Min
Typ
Max
Units
Notes and Conditions
Output, which goes active low
when any of the measured
parameters goes outside its
limits. See Application Note 205
for further detail
Voh
Vol
Ioh
Iol
2.90
3.10
3.30
0.1
5.0
5.0
V
V
mA
mA
Interrupt is not active
Interrupt is active
Output source current
Output sink current
SDA and SCL referenced to
secondary side 3.3 V return
provide the communication path
with the ‘host’ system.
See Application Note 205 for
further details
This value is fixed
Forms part of the I
2
C binary
address. These are hardwired
to logic ‘1’ via 10 k pull-ups, but
can be configured to logic ‘0’ by
connecting to 3.3 V output
return via zero
Ω
link(s).
See Application Note 205 for
further details
These two inputs effectively
connect to their respective
returns once the Zone1
connector mates with the Zone1
socket on the backplane. Both
Enables must mate to start up
the unit
High level output voltage
Low level output voltage
High level output current
Low level sink current
I
2
C Bus (input and output)
pins 20 and 22
Low level sink current
Iol
5.0
mA
Clock frequency
Address A0, A1, A2
pins 21, 19 and 17 (input only)
I
2
Cfreq
100
kHz
Enable A & B (input only)
Holdup Characteristics
Characteristic
Hold up capacitance
requirement
Clamp voltage
Symbol
Choldup
Min
Chold_min
Typ
Max
8,000
Units
µF
Notes and Conditions
Chold_min depends on load and
hold up requirement on customer
system. See Application Note 205
Voltage on hold up capacitors
(pin 12 wrt pin 9) when input is
43 V and 210 W load
If the clamp voltage exceeds
Vcl_ovp, the unit trips. Reset is
achieved by cycling the input
power
Vcl
41.0
41.5
V
Clamp voltage OVP
Vcl_ovp
48.0
V
4
File Name: atc210.pdf Rev: 16 Aug 2006
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