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7
AHE28XXD Series
Table III. Electrical Performance Characteristics - continued
Notes to Specifications
1 Recovery time is measured from the initiation of the transient to where V
OUT has returned to within ±.1 percent of VOUT at 50 percent
load.
2 Turn on delay time measurement is for either a step application of power at the input or the removal of a ground signal from the
inhibit pin (pin 2) while power is applied to the input.
3
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.
4 Total power at both outputs. For operation at 16 Vdc input, derate output power by 33 percent.
5 Input step transition time between 2 and 10 microseconds.
6 Capacitive load may be any value from 0 to the maximum limit without compromising dc performance. A capacitive load in excess
of the maximum limit will not disturb loop stability but may interfere with the operation of the load fault detection circuitry, appearing
as a short circuit during turn-on.
7 Load step transition time between 2 and 10 microseconds.
8 Bandwidth guaranteed by design. Tested for 20KHz to 2MHz.
9
Tested at each output.
10 When operating with unbalanced loads, at least 25 percent of the load must be on the positive output to maintain regulation.
11 Parameter guaranteed by line and load regulation tests.
12 Parameter shall be tested as part of design characterization and after design or process changes. Thereafter parameters shall be
guaranteed to the limits specified in Table II.
AHE2815D
Test
Symbol
Conditions
-55°C
≤Tc ≤+125°C
Vin = 28 Vdc ±5%, C
L = 0
unless otherwise specified
Group A
Subgroups
Device
Types
Limits
Unit
Min
Max
Recovery time
step transient
load changes
1, 7
TT
LOAD
50% load to/from 100% load
4
All
70
s
5,6
100
No load to 50% load
4,5,6
All
1500
50% load to no load
4,5,6
All
5
ms
Output response
transient step
line changes
5, 12
VO
TLINE
Input step 17 to 40V dc
4,5,6
All
1500
mV pk
Input step 40 to 17V dc
4,5,6
All
-1500
Recovery time
transient
step line
changes
1, 5, 12
TT
LINE
Input step 17 to 40V dc
4,5,6
All
4
ms
Input step 40 to 17V dc
4,5,6
All
4
Turn on
overshoot
9
VTon
OS
I
OUT = 0 and ±500mA
4,5,6
All
600
mV pk
Turn on delay
2, 9
Ton
D
I
OUT = 0 and ±500mA
4,5,6
All
10
ms
Load fault
recovery
12
Tr
LF
4,5,6
All
10
ms