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11

AHF28XX Series

AHF2805D

Notes to Specifications

1. Parameter guaranteed by line load and cross regulation tests.

2. Up to 90 percent of full power is available from either output provided the total output does not exceed 12W.

3. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz.

4. Load current split equally between +V

5. 1.2 watt load on output under test, 1.2W to 10.8W load change on other output.

6. 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.

7. 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 IV.

8. 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.

9. Load step transition time between 2.0

µs and 10µs.

10. Recovery time is measured from the initiation of the transient to where V

percent of V

11. Input step transition time between 2.0

µs and 10µs.

12. 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.

Test

Symbol

Conditions

Group A

Device

Unit

-55°C

≤ Tc ≤ +125°C

Subgroups

Types

Unless otherwise specified

Min

Max

50% to/from 100%

rated load

0% to/from 50%

rated load

Input step 16V to/from

4,5,6

01

-400

+400

mVpk

rated load

Input step 16V to/from

4,5,6

1200

µs

rated load

Turn on overshoot

4

4,5,6

01

600

mVpk

Turn on delay

9

4,5,6

01

25

ms

Load fault

recovery

4, 9

Weight

38

g

Limits

70

Recovery time

transient step line

changes

4, 7, 10, 11

01

01

Recovery time step

transient load

changes

4, 9,10

50% to/from 100% rated load

0% to/from 50% rated load

01

Output response to

transient step line

changes

4, 7, 11

4,5,6

Output response to

step transient load

changes

4, 9

ms

4,5,6

01

25

µs

4,5,6

4,5,6

-400

+400

-800

+800

mVpk

4,5,6

100