AHF2805SSLASHCH datasheet(3/14 Pages) ETC1

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AHF2812S

TABLE II. 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/

VOTLOAD

500 mA to/from 1000 mA

-300

+300

mV pk

5,6

-450

+450

0 mA to/from 500 mA

-500

+500

5,6

-750

+750

Recovery time, step

transient load changes

6/ 7/

TTLOAD

500 mA to/from 1000 mA

4,5,6

100

µs

0 mA to 500 mA

4,5,6

1500

500 mA to 0 mA

4,5,6

Output response to

transient step line changes

VOTLINE

Input step 16 V to/from

40 V dc, IOUT = 1000 mA 4/ 8/

4,5,6

1500

mV pk

Recovery time transient

step line changes

TTLINE

Input step 16 V to/from 40 V dc

IOUT = 1000 mA 4/ 7/ 8/

4,5,6

800

µs

Turn on overshoot

VTonOS

IOUT = 0 and 1000 mA

4,5,6

600

mV pk

Turn on delay

TonD

IOUT = 0 and 1000 mA

4,5,6

Load fault recovery 4/ 9/

TrLF

4,5,6

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.

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.

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 1)

while power is applied to the input

is unlimited.

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