PSC129-2IR Power-One, PSC129-2IR Datasheet - Page 10

• Manufacturer Part Number: PSC129-2IR
• Description: Psc Series Extended Positive Switching Regulators Benign
• Manufacturer: Power-One

Table 9: Inhibit characteristics
i Inhibit for Remote On/Off
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.
Fig. 9
Typical inhibit current I
Fig. 10
Definition of I
REV. MAY 12, 2004
I
inh
Characteristics
V
t
t
I
Note: With open i-input, output is enabled ( V
5
4
3
2
1
i inh
0
r
f
–50 –40
inh
[mA]
Vi+
Gi–
–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
V
inh
o
on
–20 –10
and V
inh
inh
versus inhibit voltage V
0
Go–
Vo+
10
i
20
V
o
30
I
V
V
inh
off
o
o
V
= on
= off
inh
40
06034
o
50
= on)
inh
06009
V
inh
Page 10 of 12
[V]
Conditions
V
T
V
R
V
C min
i min
i
i
L
Positive Switching Regulators (Benign)
= V
= V
= V
Fig. 11
Output response as a function of inhibit signal
- V
i nom
i nom
V
- T
o nom
0.1
o
Inhibit
1
1
0
0
i max
/ V
C max
o nom
/ I
o nom
PSC Series Extended Data Sheet
t
r
+2.4
min
–50
typ
10
10
5
max
+0.8
+50
t
f
06001
VDC
Unit
t
t
mA
ms