psb245-7ir Power-One, psb245-7ir Datasheet - Page 6

• Manufacturer Part Number: psb245-7ir
• Description: Psb Series Extended Positive Switching Regulator Industrial
• Manufacturer: Power-One

Fig. 9
Voltage adjustment with V
a) V
Fig. 6
Typical inhibit current I
Table 4: Inhibit characteristics
R Control for Output Voltage Adjustment
Note: With open R input, V
The output voltage V
nal voltage ( V
adjustment range is 0 – 108% V
tial voltage D V
cal Input Data ) should be maintained. Undervoltage lock-
out = Minimum input voltage.
Auxiliary Functions
i Inhibit for Remote On and Off
Note: With open i-input, output is enabled ( V
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.
REV. OCT 17, 2003
I
inh
Characteristics
V
t
t
I
5
4
3
2
1
0
i inh
–50 –40
r
f
inh
V
[mA]
o
ext
= 0-108% V
+
2.5 V • –––––
V
–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
ext
V
R
G
ext
o
io min
on
–20 –10
) or with an external resistor ( R
Go –
o nom
V
o nom
V
between input and output (see: Electri-
4000
V
o
o
ref
, using V
can either be adjusted with an exter-
inh
versus inhibit voltage V
0
ext
o
Vo+
between R and G (Go–)
10
ext
V
o nom
V
+
–
o nom
o
between R and G (Go–)
20
. The minimum differen-
V
. R excludes option P.
V
06035
o nom
o
30
V
V
off
o
o
= on
= off
• –––––
40
o
06034
2.5 V
V
1
= on)
50
or R
ext
inh
2
V
). The
inh
Page 6 of 13
[V]
Conditions
V
T
V
R
V
Positive Switching Regulator (Industrial)
i min
C min
i
i
L
= V
= V
= V
Fig. 7
Definition of I
Fig. 8
Output response as a function of inhibit signal
Fig. 10
Voltage adjustment with external resistor R
– V
Caution: To prevent damage V
20 V, nor be negative and R
47 k .
V
– T
i nom
i nom
o nom
0.1
o
Inhibit
1
1
0
0
/ V
i max
C max
o nom
/ I
o nom
PSB Series Extended Data Sheet
Vi+
Gi–
R
R
2
1
inh
R
G
t
and V
r
Go–
inh
+2.4
min
V
–50
4000
ref
Go–
Vo+
2
typ
10
10
should never be less than
5
Vo+
i
ext
+
–
should not exceed
max
+0.8
+50
I
inh
t
06036
f
V
inh
1
or R
06001
2
V DC
t
t
Unit
06009
mA
ms