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3
ATO28XXT Series
T
CASE
= -55°C to +105°C, V
IN = +28V ± 5% unless otherwise specified
Specifications
ABSOLUTE MAXIMUM RATINGS
Input Voltage
-0.5V to 50V
Power Output
Internally limited, 17.5W typical
Soldering
300
°C for 10 seconds
Temperature Range
6
Operating
-55
°C to +125°C case
Storage
-65
°C to +135°C
1.
Tested at each output.
2.
Parameter guaranteed by line and load regulation tests.
3.
At least 20 percent of the total output power should be taken from the (+5V volt) main output.
4.
Bandwidth guaranteed by design. Tested for 20KHz to 2MHz.
5.
An overload is that condition with a load in excess of the rated load but less than that necessary to trigger the short circuit
protection and is the condition of maximum power dissipation.
6.
Above 105
°C case temperature, derate output power linearly to 0 at 125°C case
Notes to Specifications
ATO2812T/ES
ATO2815T/ES
TEST
SYMBOL
Condition
-55
°C ≤ T
C ≤ +105°C, VIN = 28 VDC ±5%, CL=0
unless otherwise specified
Min
Max
Min
Max
Units
STATIC
CHARACTERISTICS
OUTPUT
Voltage
1
V
OUT
I
OUT = 0 (main)
I
OUT = 0 (dual)
1
TC = 25
°C
Over Temp
TC = 25
°C
Over Temp
4.95
4.90
±11.88
±11.76
5.05
5.10
±12.12
±12.24
4.95
4.90
±14.85
±14.70
5.05
5.10
±15.15
±15.30
V
Current
1,2,3
I
OUT
V
IN = 16, 28, and 40 VDC (main)
0.0
2000
0.0
2000
mA
Ripple Voltage
1,4
V
RIP
V
IN = 16, 28, and 40 VDC (dual)
1
V
IN = 16, 28, and 40 VDC
0.0
±208
80
0.0
±167
80
mA
mVp-p
BW = DC to 2 MHz (main)
V
IN = 16, 28, and 40 VDC
BW = DC to 2 MHz (dual))
40
mVp-p
Power
1,2,3
P
OUT
V
IN = 16, 28, and 40 VDC (main)
(+dual)
(-dual)
(total)
10
2.5
15
10
2.5
15
W
REGULATION
Line
1,3
Load
1,3
VR
LINE
VR
LOAD
V
IN = 16, 28, and 40 VDC
I
OUT = 0, 1000, 2000mA (main)
V
IN = 16, 28, and 40 VDC (dual)
I
OUT = 0, ±84, ±167mA (dual)
V
IN = 16, 28, and 40 VDC
I
OUT = 0, 1000, 2000mA (main)
V
IN = 16, 28, and 40 VDC
I
OUT = 0, ±84, ±167mA (dual)
TC = 25
°C
Over Temp
25
±30
±60
50
±60
25
±35
±75
50
±75
mV
INPUT
Current
Ripple Current
4
I
IN
I
RIP
I
OUT = 0, Inhibit (pin 8)
Tied to input return (pin 10)
I
OUT = 0, inhibit (pin 2) = open
I
OUT = 2000 mA (main)
I
OUT = ±167mA (dual)
BW = DC to 2MHz
15
40
50
15
40
50
mA
mAp-p
EFFICIENCY
E
FF
I
OUT = 2000mA (main)
I
OUT = ±167mA (dual)
TC =
±25°C
TC = 25
°C
76
%
ISOLATION
ISO
Input to output or any pin to
case (except pin 7) at 500 VDC,
TC = +25
°C
TC = 25
°C
100
M
Load Fault
Power Dissipation
3
P
D
Overload, TC = +25
°C5
Short Circuit, TC = +25
°C
TC = 25
°C
8
6
8
6
W
Switching Frequency
F
S
I
OUT = 2000mA (main)
I
OUT = ±167mA (dual)
225
275
225
275
KHz
Inhibit Open Circuit
Voltage
V
OI
9
13
9
13
V