Conditions
-55°C - Tc - +85°C, VIN - 28 VDC
AHE2805S
AHE2812S
AHE2815S
Parameter
±5%, C=0, unless otherwise specified
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Units
STATIC CHARACTERISTICS
OUTPUT
VIN = 17 TO 40 VDC
Voltage
IOUT = 0 TO Full Load
4.90
5.00
5.10
11.76
12.00
12.24
14.70
15.00
15.30 VDC
Current
0.0
3000
0.0
1667
0.0
1333
mADC
Ripple
Full Load, DC to 1MHz
20
60
30
60
30
60
mVpp
Accuracy
TCASE = 25°C, IOUT = 0
4.95
5.00
5.05
11.88
12.00
12.12
14.85
15.00
15.15 VDC
Power1
15
20
W
REGULATION
Line
VIN = 17 to 40VDC
±0.5
±1.0
±0.5
±1.0
±0.5
±1.0
%
Load
IOUT = 0 to Full Load
±0.5
±1.0
±0.5
±1.0
±0.5
±1.0
%
INPUT
Voltage Range4
17.0
28.0
40.0
17.0
28.0
40.0
17.0
28.0
40.0
VDC
Current
Inhibited
8
18
8
18
8
18
mADC
No Load
35
mADC
Ripple Current
Full Load
20
50
25
50
25
50
mV p-p
EFFICIENCY
TCASE = +25°C
Half Load to Full Load
80
82
79
83
80
84
%
CAPACITIVE LOAD
No effect on performance
500
200
F
LOAD FAULT POWER
DISSIPATION4
66
6
W
ISOLATION
Input to Output @ 500VDC
100
M
DYNAMIC CHARACTERISTICS
STEP LOAD CHANGES
Output
50% Load 100% Load
±150
±200
mVpk
Transient
No Load 50% Load
-300
-400
mVpk
50% Load No Load
+300
+400
mVpk
Recovery2
50% Load 100% Load
25
sec
No Load 50% Load
500
sec
50% Load No Load
7
msec
STEP LINE CHANGES
Output
Input step 17 to 40VDC
+180
mVpk
Transient
Input step 40 to 17VDC
-600
mVpk
Recovery2
Input step 17 to 40VDC
400
sec
Input step 40 to 17VDC
400
sec
TURN-ON
VIN = 17 to 40VDC
Overshoot
IOUT = 0 to Full Load
0
500
300
600
300
500
mVpk
Delay3
8
14
8
14
8
14
msec
LOAD FAULT RECOVERY4
VIN = 17 to 40VDC
8
14
8
14
8
14
msec
WEIGHT
Standard Package
55
grams
Flange Package
58
grams
SPECIFICATIONS
TCASE = -55°C to +85°C, VIN = + 28V ±5% unless otherwise specified.
ABSOLUTE MAXIMUM RATINGS
Input Voltage1
-0.5V to +50V
Power Output
Internally Limited, 17.5W typical for AHE2805S, 22.5W typical for AHE2812S and AHE2815S
Soldering
300°C for 10 seconds
Temperature Range1
Operating
-55°C to +125°C case
Storage
-65°C to + 135°C
2
Notes:
1. Above +85°C case temperature, derate output power linearly to 0 and maximum input voltage linearly to 42V at 115°C case.
2. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of VOUT at 50% load. See typical waveforms.
3. Turn-on delay time measurement is for either an application of power at the input or a signal at the shutdown pin.
4. For operation at 16VDC, derate output power by 33%.