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7

ATR28XXS Series

ATR2812S

Limits

Test

Symbol

Conditions

-55

°C ≤ TC ≤ +125°C

V

Unless otherwise specified

Group A

Subgroups

Device

Types

Min

Max

Units

Recovery time transient

step line changes

5, 8, 9

TT

LINE

Input step 16V to/from

40VDC, I

4,5,6

01

10

ms

Turn on overshoot

VTon

OS

I

4,5,6

01

800

mV pk

Turn on delay

10

Ton

D

I

4,5,6

01

25

ms

Load fault recovery

5, 10

Tr

LF

4,5,6

01

25

ms

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

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.