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7
ATW28XXS Series
Table III. Electrical Performance Characteristics - continued
ATW2815S
Notes to Specifications
1
Parameter guaranteed by line and load regulation tests.
2
Bandwidth guaranteed by design. Tested for 20kHz to 2.0MHz.
3
For operation at 16 Vdc input, derate output power by 33%.
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 2.0
s and 10s.
8
Recovery time is measured from the initiation of the transient to where V
OUT has returned to within ±1.0% of VOUT at 50% load.
9
Input step transition time between 2.0
s and 10s.
10 Turn-on delay time measurement is for either a step application of power at the input or the removal of
ground signal from the inhibit pin (pin 2) while power is applied to the input.
Test
Symbol
Conditions
-55°C
≤ Tc ≤ +125°C
Vin = 28 Vdc ±5%, CL = 0
unless otherwise specified
Group A
Subgroups
Device
Types
Limits
Unit
Min
Max
Recovery time step
transient load
changes
7, 8
TTLOAD
50% load to/from 100% load
4
All
70
s
5,6
100
No load to 50% load
4,5,6
1500
50% load to no load
4,5,6
5.0
ms
Output response to
transient step line
changes
5, 9
VOTLINE
Input step 17 to 40 Vdc
4,5,6
All
500
mVpk
Input step 40 to 17 Vdc
4,5,6
1500
Recovery time
transient line
changes
5, 8, 9
TTLINE
Input step 17 tp 40 Vdc
4,5,6
All
800
ms
Input step 40 to 17 Vdc
4,5,6
800
Turn on overshoot
VTonOS
IOUT = 0 and 1333mA
4,5,6
All
600
mVpk
Turn on delay
10
TonD
IOUT = 0 and 1333mA
4,5,6
All
10
ms
Load fault recovery
5
TrLF
4,5,6
All
10
ms
Weight
Flange
75
g