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AHP270XXS Series

Notes to Specifications:

1.

Parameters not 100% tested but are guaranteed to the limits specified in the table.

2.

Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0 % of VOUT at 50% load.

3.

Line transient transition time

≥100µs.

4.

Turn-on delay is measured with an input voltage rise time of between 100V and 500V per ms.

5.

Current limit point is that condition of excess load causing output voltage to drop to 90% of nominal.

6.

Parameter verified as part of another test.

7.

All electrical tests are performed with the remote sense leads connected to the output leads at the load.

8.

Load transient transition time

≥10µs.

9.

Enable inputs internally pulled high. Nominal open circuit voltage

≈ 4.0VDC.

10.

All tests at no-load are performed after start-up of the converter.

The converter may fail to start when the output load is less than 1.0W. Under these circumstances,

the converter’s start-up circuitry will continue to cycle until an adequate load is present.

Parameter

Group A

Subgroups

Test Conditions

Min

Nom

Max

Unit

LOAD TRANSIENT RESPONSE

AHP27003R3S / AHP27005S

Amplitude

Recovery

Amplitude

Recovery

AHP27006S

Amplitude

Recovery

Amplitude

Recovery

AHP27009S

Amplitude

Recovery

Amplitude

Recovery

AHP27012S

Amplitude

Recovery

Amplitude

Recovery

AHP27015S

Amplitude

Recovery

Amplitude

Recovery

AHP27025S

Amplitude

Recovery

Amplitude

Recovery

AHP27028S

Amplitude

Recovery

Amplitude

Recovery

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

4, 5, 6

Notes 2, 8

Load Step 50%

⇔ 100%

Load Step 10%

⇔ 50%

Load Step 50%

⇔ 100%

Load Step 10%

⇔ 50%

Load Step 50%

⇔ 100%

Load Step 10%

⇔ 50%

Load Step 50%

⇔ 100%

Load Step 10%

⇔ 50%

Load Step 50%

⇔ 100%

Load Step 10%

⇔ 50%

Load Step 50%

⇔ 100%

Load Step 10%

⇔ 50%

Load Step 50%

⇔ 100%

Load Step 10%

⇔ 50%

-450

-450

-450

-450

-600

-600

-750

-750

-900

-900

-1200

-1200

-1200

-1200

450

200

450

400

450

200

450

400

600

200

600

400

750

200

750

400

900

200

900

400

1200

200

1200

400

1200

200

1200

400

mV

µs

mV

µs

mV

µs

mV

µs

mV

µs

mV

µs

mV

µs

mV

µs

mV

µs

mV

µs

mV

µs

mV

µs

mV

µs

mV

µs

LINE TRANSIENT RESPONSE

Amplitude

Recovery

Notes 1, 2, 3

VIN Step = 160 ⇔ 400 Volts

-500

500

500

mV

µs

TURN-ON CHARACTERISTICS

Overshoot

Delay

4, 5, 6

4, 5, 6

Note 4

Enable 1, 2 on. (Pins 4, 12 high or

open)

50

5.0

75

10

120

%

ms

LOAD FAULT RECOVERY

Same as Turn On Characteristics.

LINE REJECTION

MIL-STD-461, CS101, 30Hz to 50KHz

Note 1

60

70

dB