AHF2805SSLASHCH datasheet(5/14 Pages) ETC1

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AHF2815S

TABLE III. Electrical Performance Characteristics - Continued

Test

Symbol

Conditions

-55

°C ≤ T

≤ +125°C

VIN = 28 V dc ±5%, CL = 0 unless

otherwise specified

Group A

Subgroups

Device

types

Limits

Unit

Min

Max

Output response to step

transient load changes 6/

VOTLOA

1000 mA to/from 2000 mA

4,5,6

All

-800

+800

mV pk

0 mA to/from 1000 mA

4,5,6

-1000

+750

Recovery time, step

transient load changes

6/ 7/

TTLOAD

1000 mA to/from 2000 mA

All

100

µs

5,6

200

0 mA to/from 1000 mA

All

5,6

Output response to

transient step line changes

VOTLINE

Input step 18 V to/from

40 V dc, IOUT = 2000 mA 4/ 8/

4,5,6

-1000

+1000

mV pk

Recovery time transient

step line changes

TTLINE

Input step 18 V to/from 40 V dc

IOUT = 2000 mA 4/ 7/ 8/

4,5,6

500

µs

Turn on overshoot

VTonOS

IOUT = 0 and 2000 mA

4,5,6

All

750

mV pk

Turn on delay

TonD

IOUT = 0 and 2000 mA

4,5,6

All

Load fault recovery 4/ 9/

TrLF

4,5,6

All

Weight

grams

Notes:

Parameter guaranteed by line and load regulation tests.

Bandwidth guaranteed by design. Tested for 20 kHz to 2 MHz.

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.

4/ 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.

5/ 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.

Load step transition time between 2 and 10 microseconds.

Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1 percent of VOUT at 50 percent load.

Input step transition time between 2 and 10 microseconds.

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.

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