psa241.5-7ir Power-One, psa241.5-7ir Datasheet - Page 6

• Manufacturer Part Number: psa241.5-7ir
• Description: Psa Series Extended Positive Switching Regulator Rugged
• Manufacturer: Power-One

I
Table 4: Inhibit characteristics
REV. SEP 23, 2003
Auxiliary Functions
i Inhibit for Remote On and Off
Note: With open i-input, output is enabled (U
The inhibit input allows the switching regulator output to be
disabled via a control signal. In systems with several units,
this feature can be used, for example, to control the activa-
tion sequence of the regulators by a logic signal (TTL, C-
MOS, etc.). An output voltage overshoot will not occur
when switching on or off.
inh
Fig. 6
Typical inhibit current I
5
4
3
2
1
Characteristics
U
t
t
I
0
i inh
-50 -40
r
f
inh
[mA]
-30
Inhibit input voltage to keep
regulator output voltage...
Switch-on time after inhibit command
Switch-off time after inhibit command
Input current when inhibited
U
o
on
-20 -10
inh
0
versus inhibit voltage U
10
20
U
o
30
U
U
off
o
o
= on
= off
40
06010
o
= on)
50
inh
U
inh
Page 6 of 13
[V]
Conditions
U
T
U
R
U
C min
i min
i
L
i
= U
= U
Positive Switching Regulator (Rugged)
= U
Fig. 7
Definition of I
Fig. 8
Output response as a function of inhibit signal
...U
...T
U
i nom
i nom
0.1
o nom
o
Inhibit
1
1
0
0
i max
C max
/U
o nom
/I
o nom
PSA Series Extended Data Sheet
Vi+
Gi–
inh
t
and U
r
+2.4
min
inh
–10
Go–
Vo+
typ
10
2
4
i
max
+0.8
+50
I
inh
U
t
inh
f
V DC
06001
Unit
mA
06009
ms
t
t