PSC128-7LIRPCD Power-One, PSC128-7LIRPCD Datasheet - Page 6

• Manufacturer Part Number: PSC128-7LIRPCD
• Description: Psc Series Extended Positive Switching Regulators Industrial
• Manufacturer: Power-One

Fig. 6
Typical inhibit current I
Auxiliary Functions
i Inhibit for Remote On and 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.
Table 4: Inhibit characteristics
R Control for Output Voltage Adjustment
The output voltage V
nal voltage ( V
adjustment range is 0 - 108% of V
ential voltage D V
trical Input Data ) should be maintained. Undervoltage lock-
out = Minimum input voltage.
Fig. 9
Voltage adjustment with V
REV. MAY 12, 2004
I
inh
Note: With open i-input, output is enabled ( V
Characteristics
V
t
t
I
Note: With open R input, V
5
4
3
2
1
0
i inh
–50 –40
f
r
inh
[mA]
+
(For superseded PSR types V
–30
V
Inhibit input voltage to keep
regulator output voltage -
Switch-on time after inhibit command
Switch-off time after inhibit command
Input current when inhibited
ext
V
R
G
ext
o
on
–20 –10
) or with an external resistor ( R
io min
4000 Ω
V
o
between input and output (see: Elec-
ref
can either be adjusted with an exter-
inh
versus inhibit voltage V
0
ext
o
≈ V
Vo+
between R and G (Go-)
10
+
–
o nom
o nom
20
. R excludes option P.
V
06035
o
. The minimum differ-
o
30
≈ 1.08 • V
V
V
off
o
o
= on
= off
40
06034
o
1
50
or R
= on)
o nom
inh
2
V
)
). The
inh
Page 6 of 13
[V]
Positive Switching Regulators (Industrial)
V
T
V
R
V
Conditions
C min
i min
i
i
L
= V
= V
= V
Fig. 7
Definition of I
Fig. 8
Output response as a function of inhibit signal
a) V
Fig. 10
Voltage adjustment with external resistor R
- V
Caution: To prevent damage V
20 V, nor be negative and R
47 kΩ.
V
- T
i nom
i nom
0.1
o nom
V
o
Inhibit
1
0
1
0
i max
o
/ V
C max
ext
= 0 - 108% V
o nom
/ I
≈ 2.5 V • –––––
o nom
PSC Series Extended Data Sheet
Vi+
Gi–
R
R
2
1
inh
R
G
t
and V
r
V
o nom
o nom
V
o
inh
+2.4
min
–50
, using V
V
4000 Ω
ref
Go–
Vo+
2
typ
10
10
should never be less than
ext
V
5
Vo+
i
o
between R and G (Go–)
≈ V
ext
+
–
o nom
should not exceed
max
+0.8
+50
I
inh
t
06036
f
V
• –––––
inh
1
or R
2.5 V
V
ext
06001
2
VDC
t
t
Unit
06009
mA
ms