鈥?Pins 6 & 26 are used for N+1 configurations only.
PT4475
VID0 - VID4
21 22 23 24 25
-V
sns
+
C
1
-V
out
14-19
20
鈥?V
OUT
鈥?V
IN
PROGRAMMING PINS
Specifications
Characteristics
(T
a
=25擄C unless noted)
Output Current
Current Limit
Current Sharing
Input Voltage Range
Output Voltage Tolerance
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
V
in
鈭哣
o
Reg
line
Reg
load
V
n
t
tr
Symbols
I
o
I
cl
Conditions
(V
in
=24V, V
o
=12.0V unless noted)
Over V
in
range (100W max)
V
in
= 18V
Single line referenced to 鈥揤
sense
I
o
= 0 to I
o
max
Over V
in
range, I
o
=I
o
max
T
a
=-40 to +100擄C case
Over V
in
range @ max I
o
0 to 100% of I
o
max
I
o
=I
o
max
50% to 75% I
o
max @ 0.1A/碌s
V
o
over/undershoot (no ext caps)
50% to 100% I
o
max @1.0A/碌s
V
o
over/undershoot (no ext. caps)
V
o
Rise Time
Efficiency
Switching Frequency
Remote On/Off
Over-Voltage Protection
Isolation
Operating Temperature Range
Over-Temperature Shutdown
Storage T
emperature
Reliability
Mechanical Shock
Mechanical Vibration
(Mil-STD-883D, 20-2000Hz)
Weight
V
otr
畏
茠
o
Off
On
OVP
鈥?/div>
T
c
OTP
T
s
MTBF
鈥?/div>
鈥?/div>
鈥?/div>
At turn-on
I
o
=5A
鈥?/div>
referenced to -V
in
Shutdown and latch off
鈥?/div>
Measured at center of case
Case temperature - Auto reset
鈥?/div>
Per Bellcore TR-332
50% stress, t =40擄C, ground benign
Per Mil-STD-883D, Method 2002.3,
1mS, Half-sine, mounted to a fixture
Vertical (Suffix N)
Horizontal (Suffixes A, C)
鈥?/div>
PT4475
Min
0.1
鈥?/div>
鈥?/div>
18
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
+2.5
-0.5
鈥?/div>
1500
鈥?0
鈥?/div>
-40
1.7
鈥?/div>
鈥?/div>
鈥?/div>
Typ
鈥?/div>
10
鈥?/div>
24
鹵1.0
鹵0.1
鹵0.5
120
N/A
1.0
200
5
鈥?/div>
89
300
鈥?/div>
鈥?/div>
125
鈥?/div>
鈥?/div>
+110
鈥?/div>
鈥?/div>
500
10
20
90
(2)
(2)
Max
8.5
鈥?/div>
鹵10
36
鹵2.0
鹵1.0
鹵1.0
150
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
10
鈥?/div>
鈥?/div>
+75.0
+0.8
鈥?/div>
鈥?/div>
+100
鈥?/div>
+125
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
(1)
Units
A
A
%
V
%V
o
%V
o
%V
o
mV
pp
碌Sec
%V
o
碌Sec
%V
o
mSec
%
kHz
VDC
%V
o
VDC
擄C
擄C
擄C
10 Hrs
G鈥檚
G鈥檚
grams
6
Notes:
(1) The maximum output current is limited to 8.5A or 100/V
OUT
, Whichever is less.
(2) Only the case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.
For technical support and more information, see inside back cover or visit www.ti.com
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