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ADDC02828SA–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
–55
8
C to +90
8
C; all temperatures are case and T
C
is the temperature measured at the center of the package bottom)
Case
T emp
T est
Level
ADDC02828SA
Min
T yp
Parameter
Conditions
Max
Units
INPUT CHARACT ERIST ICS
Steady State Operating Input Voltage Range
1
Abnormal Operating Input Voltage Range
(Per MIL-ST D-704D)
1
Input Overvoltage Shutdown
No Load Input Current
Disabled Input Current
Full
VI
I
O
= 0.36 A to 3.6 A
18
28
40
V
Full
+25
°
C
+25
°
C
+25
°
C
VI
I
VI
VI
I
O
= 0.36 A to 2.9 A
16
50
50
55
100
5
V
V
mA
mA
52.5
85
1
OUT PUT CHARACT ERIST ICS
2, 3
Output Voltage (V
O
)
+25
°
C
Full
Full
+25
°
C
+25
°
C
+25
°
C
Full
+25
°
C
+25
°
C
+25
°
C
I
VI
VI
VI
VI
I
VI
V
V
I
I
O
= 0.36 A to 3.6 A, V
IN
= 18 V to 40 V dc
I
O
= 0.36 A to 3.6 A, V
IN
= 18 V to 40 V dc
I
O
= 0.36 A to 2.9 A, V
= 16 V to 50 V dc
I
O
= 3.6 A, V
= 18 V to 40 V dc
V
IN
= 28 V dc, I
= 0.36 A to 3.6 A
I
O
= 3.6 A, 5 kHz – 2 MHz BW
V
IN
= 18 V to 40 V dc
I
O
= 3.6 A, Open Remote Sense Connection
V
O
= 90% V
OUT
Nom
27.44 28.00
26.88
26.88
28.56 V
29.12 V
29.12 V
60
45
100
3.6
Line Regulation
Load Regulation
Output Ripple/Noise
4
Output Current (I
)
Output Overvoltage Protection
Output Current Limit
Output Short Circuit Current
10
15
50
mV
mV
mV p-p
A
% V
O
Nom
% I
O
max
A
0.36
125
130
11
ISOLAT ION CHARACT ERIST ICS
Isolation Resistance
+25
°
C
I
Input to Output or Any Pin to Case at 500 V dc
100
M
DYNAMIC CHARACT ERIST ICS
4
Maximum Output Voltage Deviation Due to
Step Change in Load
Response T ime Due to Step Change in Load
+25
°
C
+25
°
C
I
I
I
O
= 1.8 A to 3.6 A or 3.6 A to 1.8 A, di/dt = 0.5 A/
μ
s
I
O
= 1.8 A to 3.6 A or 3.6 A to 1.8 A, di/dt = 0.5 A/
μ
s
T ime for V
OUT
to Return within 2% of Final Value
I
O
= 3.6 A, From Inhibit High to Status High
1.8
150
V
μ
s
Soft Start T urn-On T ime
5
+25
°
C
I
15
20
ms
T HERMAL CHARACT ERIST ICS
Efficiency
+25
°
C
Full
+25
°
C
Full
+90
°
C
I
VI
I
VI
V
I
O
= 2.2 A
I
O
= 2.2 A
I
O
= 3.6 A
I
O
= 3.6 A
I
O
= 3.6 A
81
80
81
80
85
%
%
%
%
°
C
85
Hottest Junction T emperature
6
110
CONT ROL CHARACT ERIST ICS
Clock Frequency
ADJUST (Pin 3) V ADJ
ST AT US (Pin 4)
V
OH
V
OL
V
AUX
(Pin 5)
V
O
(nom)
INHIBIT (Pin 6)
V
IL
I
IL
V
I
(Open Circuit)
SYNC (Pin 7)
V
IH
I
IH
I
SHARE
(Pin 8)
T EMP (Pin 9)
Full
+25
°
C
VI
I
I
O
= 0.36 A
0.85
5.5
0.99
5.7
MHz
V
5.6
+25
°
C
+25
°
C
I
I
I
OH
= 400
μ
A
I
OL
= 1 mA
2.4
4.0
0.15
V
V
0.7
+25
°
C
I
I
AUX
= 5 mA, Load Current = 3.6 A
12.85 13.1
13.35 V
+25
°
C
+25
°
C
+25
°
C
I
I
I
0.5
1.2
15
V
mA
V
V
IL
= 0.5 V
+25
°
C
+25
°
C
+25
°
C
+25
°
C
I
I
I
V
4.0
V
μ
A
V
V
V
IH
= 7.0 V
I
O
= 3.6 A
150
2.90
2.70
2.80
3.90
NOTES
1
50 V dc upper limit rated for transient condition of up to 50 ms. 16 V dc lower limit rated for continuous operation during emergency condition. Steady state and
abnormal input voltage range require source impedance sufficient to ensure input stability at low line. See sections entitled System Instability Considerations and
Input Voltage Range.
2
Measured at the remote sense points.
3
Unit regulates output voltage to zero load.
4
C
= 0.
5
Output is fully loaded into a constant resistive load.
6
Refer to T hermal Characteristics section for more information.
7
Unit has internal pull-down; refer to section entitled Pin 7 (SYNC).
Specifications subject to change without notice.
REV. 0
–2–
(T
C
= +25
8
C, V
IN
= 28 V dc
6
0.5 V dc, unless otherwse noted; full temperature range is