AHF28XX datasheet(2/17 Pages) IRF

Part #	AHF28XX

Description	28V Input, Single and Dual Output

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Manufacturer	IRF [International Rectifier]

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AHF28XX Series

Specifications

For Notes to Specifications, refer to page 3

Table I. Electrical Performance Characteristics

AHF2805S

n

ABSOLUTE MAXIMUM RATINGS

Input Voltage

-0.5V to 50V

Soldering Temperature

300°C for 10 seconds

Case Temperature

Operating -55°C to +125°C

Storage

-65°C to +135°C

Limits

Test

Symbol

Conditions

-55°C

≤ Tc ≤ +125°C

Vin = 28 Vdc ±5%, C

L = 0

Unless otherwise specified

Group A

Subgroups

Device

Types

Min

Max

Unit

Output voltage

V

OUT

I

OUT = 0

1

01

4.95

5.05

V

2,3

4.90

5.10

Output current

1

I

OUT

V

IN = 16, 28, and 40 V dc

1,2,3

01

2400

mA

Output ripple

voltage

2

V

RIP

V

IN = 16, 28, and 40 V dc,

B.W. = 20 Hz to 2MHz

1,2,3

01

60

mV p-p

Line regulation

VR

LINE

V

IN = 16, 28, and 40 V dc,

Iout = 0, 500, and 1000 mA

1,2,3

01

25

mV

Load regulation

VR

LOAD

V

IN = 16, 28, and 40 V dc,

I

OUT = 0, 500, and 1000 mA

1,2,3

01

50

mV

Input current

I

IN

I

OUT = 0, inhibit (pin 1)

tied to input return (pin 7)

1,2,3

01

12

mA

I

OUT = 0,

inhibit (pin 1) = open

30

Input ripple current

2

I

RIP

I

OUT = 1000mA

B.W. = 20 Hz to 2MHz

1,2,3

01

50

mA p-p

Efficiency

E

FF

I

OUT = 1000mA

1

01

76

%

2,3

74

Isolation

ISO

Input to output or any pin

To case (except pin 6) at

500V dc Tc = +25°C

1

01

100

M

Ω

Capacitive load

3,4

C

L

No effect on dc

performance, Tc = +25°C

4

01

500

µF

Overload

5

1

01

6

Power dissipation

load fault

P

D

Short circuit

1,2,3

01

2

W

Switching

frequency

F

S

I

OUT = 1000mA

4,5,6

01

500

600

kHz

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