ADDC2803SCTV Просмотр технического описания (PDF) - Analog Devices
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ADDC2803SCTV Datasheet PDF : 18 Pages
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ADDC02803SC/ADDC02805SA–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (TC = +25؇C, VIN = 28 V dc ؎ 0.5 V dc, unless otherwise noted; full temperature range is
–55؇C to +90؇C; all temperatures are case and TC is the temperature measured at the center of the package bottom.)
Parameter
Case Test
Temp Level Conditions
ADDC02803SC ADDC02805SA
Min Typ Max Min Typ Max Units
INPUT CHARACTERISTICS
Steady State Operating Input Voltage Range1 Full VI
Abnormal Operating Input Voltage Range
(Per MIL-STD-704D)1
Full VI
Input Overvoltage Shutdown
+25°C I
No Load Input Current
+25°C I
Disabled Input Current
Full VI
IO = 2 A to 20 A
IO = 2 A to 16 A
18 28 40 18 28 40 V
16
50 16
50 V
50 52.5 55 50 52.5 55 V
90
90 mA
0.85 2.0
0.85 2.0 mA
OUTPUT CHARACTERISTICS2, 3
Output Voltage (VO)
Line Regulation
Load Regulation
Output Ripple/Noise4
Output Current (IO)
Output Overvoltage Protection
Output Current Limit
Output Short Circuit Current
+25°C I
Full VI
Full VI
+25°C V
+25°C V
+25°C I
Full VI
+25°C V
+25°C V
+25°C I
IO = 2 A to 20 A, VIN = 18 V to 40 V dc
IO = 2 A to 20 A, VIN = 18 V to 40 V dc
IO = 2 A to 16 A, VIN = 16 V to 50 V dc
IO = 20 A, VIN = 18 V to 40 V dc
VIN = 28 V dc, IO = 2 A to 20 A
IO = 20 A, 5 kHz – 2 MHz BW
VIN = 18 V to 40 V dc
IO = 20 A, Open Remote Sense Connection
VO = 90% VOUT Nom
3.26 3.30 3.34
3.2
3.4
3.2
3.4
1
1
15 35
2
21.2
145
39
5.00 5.025
4.925
4.925
1
1
15
2
125
130
5.05
5.125
5.125
50
20
35
V
V
V
mV
mV
mV p-p
A
% VO Nom
% IO max
A
ISOLATION CHARACTERISTICS
Isolation Resistance
+25°C I
Input to Output or Any Pin to Case at 500 V dc 100
100
MΩ
DYNAMIC CHARACTERISTICS4
Output Voltage Deviation Due to
Step Change in Load
+25°C V
Response Time Due to Step Change in Load +25°C V
Soft Start Turn-On Time5
+25°C I
IO = 10 A to 20 A or 20 A to 10 A di/dt = 0.5 A/µs
IO = 10 A to 20 A or 20 A to 10 A, di/dt = 0.5 A/µs,
Time for VOUT to Return within 2% of Final Value
IO = 20 A, From Inhibit High to Status High
350
135
14
500
mV
125
µs
7
20 ms
THERMAL CHARACTERISTICS
Efficiency
Hottest Junction Temperature6
+25°C I
Max VI
Min VI
+25°C I
Max VI
Min VI
+90°C V
IO = 12 A
IO = 12 A
IO = 12 A
IO = 20 A
IO = 20 A
IO = 20 A
IO = 20 A
75 79
77 80
%
75
77
%
72
75
%
74 77
77 79
%
74
77
%
73
75
%
110
110
°C
CONTROL CHARACTERISTICS
Clock Frequency
ADJUST (Pin 3) V ADJ
STATUS (Pin 4)
VOH
VOL
VAUX (Pin 5)
VO (nom)
INHIBIT (Pin 6)
VIL
IIL
VI (Open Circuit)
SYNC (Pin 7)7
VIH
IIH
ISHARE (Pin 8)
TEMP (Pin 9)
Full VI
+25°C I
+25°C I
+25°C I
+25°C I
+25°C I
+25°C I
+25°C I
+25°C I
+25°C I
+25°C I
+25°C V
IO = 2 A
IOH = 400 µA
IOL = 1 mA
IAUX = 5 mA, Load Current = 20 A
VIL = 0.5 V
VIH = 7.0 V
IO = 20 A
0.85
0.99 0.85
0.99 MHz
1.26 1.32 1.38 1.92 2.04 2.10 V
2.4 4.0
2.4 4.0
V
0.15 0.7
0.15 0.7 V
13.2 13.7 14.2 14.3 14.7 15.3 V
0.5
0.5 V
1.2
1.2 mA
15
15 V
4.0
4.0
V
175
175 µA
2.62 2.72 2.82 2.75 2.82 2.95 V
3.90
3.90
V
NOTES
150 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 insure input stability at low line. See sections entitled System Instability Considerations and Input
Voltage Range.
2Measured at the remote sense points.
3Unit regulates output voltage to zero load.
4CLOAD = 0.
5Output is fully loaded into a constant resistive load.
6Refer to section entitled Thermal Characteristics for more information.
7Unit has internal pull-down; refer to section entitled Pin 7 (SYNC).
Specifications subject to change without notice.
–2–
REV. A
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