2

www.irf.com

AHE28XXS Series

Specifications

T

Notes to Specifications

1. Above +85

°C case temperature, derate output power linearly to 0 and maximum input voltage linearly to 42V at 115°C case.

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

See typical waveforms.

3. Turn-on delay time measurement is for either an application of power at the input or a signal at the shutdown pin.

4. For operation at 16VDC, derate output power by 33%.

Input Voltage

1

-0.5V to +50VDC

Power Output

Soldering Temperature

300°C for 10 seconds

Temperature Range

1

Operating Temperature

-55°C to +125°C

Storage Case Temperature

-65°C to +135°C

Absolute Maximum Ratings

Internally limited, 17.5W typ. for AHE2805S, 22.5W typ. for AHE2812S and AHE2815S

AHE2805S

AHE2812S

AHE2815S

Parameter

Conditions

-55°C

≤ Tc ≤ +85°C

Unless otherwise specified

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

Units

Static Characteristic

OUTPUT

Voltage

Current

Ripple

Accuracy

Power

1

Full Load, DC to 1MHz

4.90

0.0

4.95

15

5.00

20

5.00

5.10

3000

60

5.05

11.76

0.0

11.88

20

12.00

30

12.00

12.24

1667

60

12.12

14.70

0.0

14.85

20

15.00

30

15.00

15.30

1333

60

15.15

VDC

mADC

mVp-p

VDC

W

REGULATION

Line

Load

±0.5

±0.5

±1.0

±1.0

±0.5

±0.5

±1.0

±1.0

±0.5

±0.5

±1.0

±1.0

%

INPUT

Voltage Range

4

Current

Ripple Current

Inhibited

No Load

Full Load

17

28

8.0

20

40

18

35

50

17

28

8.0

25

40

18

35

50

17

28.0

8.0

25

40

18

35

50

VDC

mADC

mADC

mV p-p

Efficiency

Half Load to Full Load

80

82

79

83

80

84

%

Capacitive Load

No effect on performance

500

200

200

µF

Load fault power

dissipation

4

6.0

6.0

6.0

W

Isolation

Input to Output @ 500Vdc

100

100

100

MΩ

Dynamic

Characteristic

Step Load Changes

Output

Transient

50% Load 100% Load

No Load 50% Load

±150

-300

±200

-400

±200

-400

mVpk

mVpk

50% Load No Load

+300

+400

+400

mVpk

Recovery

2

50% Load 100% Load

No Load 50% Load

50% Load No Load

25

500

7.0

25

500

7.0

25

500

7.0

µs

µs

msec

Step Line Changes

Output

Transient

Recovery

2

Input step 17 to 40VDC

Input step 40 to 17VDC

Input step 17 to 40VDC

Input step 40 to 17VDC

+180

-600

400

400

+180

-600

400

400

+180

-600

400

400

mVpk

mVpk

µs

µs

Turn-On

VIN = 17 to 40VDC

IOUT = 0 to Full load

0

8.0

500

14

300

8.0

600

14

300

8.0

500

14

mVpk

ms

Load Fault

Recovery

4

VIN = 17 to 40VDC

8.0

14

8.0

14

8.0

14

ms

Weight

Standard Package

Flange Package

55

58

55

58

55

58

g