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7
ATR28XXS Series
Table III. Electrical performance Characteristics -
continued
ATR2812S
Limits
Test
Symbol
Conditions
-55
°
C
≤
TC
≤
+125
°
C
V
= 28VDC
±
5%, C
= 0
Unless otherwise specified
Input step 16V to/from
40VDC, I
OUT
= 2500mA
I
OUT
=0 and 2500mA
I
OUT
=0 and 2500mA
Group A
Subgroups
Device
Types
Min
Max
Units
Recovery time transient
step line changes
Turn on overshoot
Turn on delay
Load fault recovery
TT
LINE
4,5,6
01
10
ms
VTon
OS
Ton
D
Tr
LF
4,5,6
4,5,6
4,5,6
01
01
01
800
25
25
mV pk
ms
ms
10
5, 10
Notes to Specifications
1 Parameter guaranteed by line and load regulation tests.
2 Bandwidth guaranteed by design. Tested for 20 KHz to 2 MHz.
3 Output voltage measured at load with remote sense leads connected across load.
4 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.
5 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 III.
6 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.
7 Load step transition time between 2 and 10 microseconds.
8 Recovery time is measured from the initiation of the transient to where V
OUT
has returned to within ±1 percent of V
OUT
at 50 percent
load.
9 Input step transition time between 2 and 10 microseconds.
10 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.