LS28 datasheet(4/16 Pages) IRF

Il numero della parte	LS28

Spiegazioni elettronici	28V Input, Single/Dual Output

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Produttore elettronici	IRF [International Rectifier]

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LS-SERIES

(28V Input, Single/Dual Output)

Electrical Performance Characteristics ( continued )

For Notes to Electrical Performance Characteristics, refer to page 5

Limits

Parameter

Group A

Subgroup

Conditions

-55

°C ≤ TC ≤ +85°C

VIN = 28V DC ± 5%, CL = 0

unless otherwise specified

Min

Nom

Max

Unit

Input Current, no load ( IIN)

LS2801R5S

LS2802R5S

LS2803R3S

LS2805S

LS2812S

LS2815S

LS2805D

LS2812D

LS2815D

1,2,3

IOUT = 0, Pin 4 open

60

70

100

mA

Input current inhibited

1,2,3

Pin 4 shorted to pin 2

8.0

mA

Output Ripple, ( VRIP)

LS2801R5S

LS2802R5S

LS2803R3S

LS2805S

LS2812S

LS2815S

LS2805D

LS2812D

LS2815D

1,2,3

VIN = 18, 28, 40 Volts

IOUT = 100% rated load

Notes 4, 6

35

50

70

80

mV p-p

Switching frequency ( FS )

1,2,3

425

500

575

KHz

Efficiency ( EFF )

LS2801R5S

LS2802R5S

LS2803R3S

LS2805S

LS2812S

LS2815S

LS2805D

LS2812D

LS2815D

1,2,3

IOUT = 100% rated load

Note 4

61

68

72

78

79

64

72

76

82

83

%

Enable Input ( Inhibit Function )

open circuit voltage

drive current ( sink )

voltage range

Note 1

9.5

-0.5

12

5.0

50

V

mA

V

Current Limit Point

Expressed as a percentage

of full rated load current

1,2,3

Vout = 90% of Nominal, Note 4

105

145

%

Power dissipation, load fault (PD)

1,2,3

Short Circuit, Overload, Note 8

14

W

Output response to

step load changes (VTLD)

4,5,6

Half Load to/from Full Load, Notes 4,9

-300

300

mV pk

Recovery time,

step load changes (TTLD)

4,5,6

Half Load to/from Full Load, Note

4,9,10

200

µs

Output response to

step line changes (VTLN)

18V to/from 40V

IOUT = 100% rated load, Notes 1,4,11

-300

300

mV pk

Recovery Time,

step line changes (TTLN)

18V to/from 40V

IOUT = 100% rated load, Notes

1,4,10,11

200

µs

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