AMF2805D datasheet(4/8 Pages) IRF

4 / 8 page

AMF28XXD SERIES

(28V Input, Dual Output)

2016-06-22

Notes to Specifications

1. Applicable to positive and negative outputs..

2. Maximum combined output is 12 watts. 10.8 watts (max.) is available from either output (90%).

3. Load current split equally between +VOUT and –VOUT.

4. 1.2 watt load on output under test, 1.2 watt to 10.8 watt load change on other output.

5. Capacitive value 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.

6. Parameter shall be tested as part of design characterization and after design or process changes. Thereafter, parameters shall be

guaranteed to the limit specified.

7. Load step transition time between 2.0µs and 10µs.

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

9. Input step transient time between 1.0µs and 10µs.

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 while power is applied to the input.

Dynamic Characteristics

-55°C ≤ TCASE ≤ +125°C, VIN = 28VDC ± 5%, CL = 0, unless otherwise specified.

Parameter

Group A

Subgroups

Test Conditions

Min

Nom

Max

Unit

Short Circuit Recovery 6

AMF2805D

AMF2812D

AMF2815D

4, 5, 6

0% load to 100% load

Switching Frequency 3

4, 5, 6

100% load

500

550

600

kHz

Output Response To Step Transient

Load Changes 3, 7

4, 5, 6

Load step 50%

100%

Load step 0%

50%

-200

-800

+200

+800

mVpk

Recovery Time, Step Transient Load

Changes 3, 7, 8

4, 5, 6

Load step 50%

100%

Load step 0%

 50%

2000

s

Output Response Transient Step

Line Changes 3, 6, 9

AMF2805D

AMF2812D

AMF2815D

4, 5, 6

Input step 16

 40VDC,

100% load

-450

-750

+450

+750

mVpk

Recovery Time Transient Step Line

Changes 3, 6, 9

4, 5, 6

Input step 16

 40VDC,

100% load

1200

s

Turn On Overshoot 3, 10

All

AMF2805D

AMF2812D

AMF2815D

4, 5, 6

0% load

100% load

600

400

300

mVpk

Turn On Delay 3, 10

4, 5, 6

0% load to 100% load

Synchronization Input 3

Frequency Range

Pulse Amplitude, Hi 6

Pulse Amplitude, Lo 6

Pulse Rise Time 6

Pulse Duty Cycle 6

4, 5, 6

500

2.5

-0.5

700

0.8

100

kHz

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