LTC4252-2 datasheet(5/34 Pages) LINER

Part #	LTC4252-2

Description	??8V Hot Swap Controllers

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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5 / 34 page

LTC4253/LTC4253A

5

425353afe

TYPICAL PERFORMANCE CHARACTERISTICS

IEN vs VEN

Circuit Breaker Current Limit

Voltage VCB vs Temperature

Analog Current Limit Voltage

VACL vs Temperature

Fast Current Limit Voltage VFCL vs

Temperature

IGATE (Source) vs Temperature

IGATE (ACL, Sink) vs Temperature

VZ vs Temperature

IIN vs VIN

IIN vs Temperature

TEMPERATURE (°C)

–55 –35 –15

5

25

45

65

85 105 125

4253 G01

14.5

14.0

13.5

13.0

12.5

12.0

IIN = 2mA

VIN (V)

0

5

10

15

20

4253 G02

1000

100

10

1

0.1

TA = 85°C

TA = 125°C

TA = –40°C

TA = 25°C

TEMPERATURE (°C)

–55 –35 –15

5

25

45

65

85 105 125

4253 G03

1000

950

900

850

800

750

700

650

600

550

500

VIN = VZ – 0.3V

VEN (V)

02

4

6

8

10

12

14

16

4253 G04

180

160

140

120

100

80

60

40

20

0

IIN = 2mA

TA = 25°C

TEMPERATURE (°C)

–55 –35 –15

5

25

45

65

85 105 125

4253 G05

55

54

53

52

51

50

49

48

47

46

45

TEMPERATURE (°C)

–55 –35 –15

5

25

45

65

85 105 125

4253 G06

150

140

130

120

110

100

90

80

70

60

50

TEMPERATURE (°C)

–55 –35 –15

5

25

45

65

85 105 125

4253 G07

300

280

260

240

220

200

180

160

140

120

100

TEMPERATURE (°C)

–55 –35 –15

5

25

45

65

85 105 125

4253 G08

60

58

56

54

52

50

48

46

44

42

40

UV/OV = 4V

TIMER = 0V

VSENSE = VEE

VGATE = 0V

TEMPERATURE (°C)

–55 –35 –15

5

25

45

65

85 105 125

4253 G09

30

25

20

15

10

5

0

UV/OV = 4V

TIMER = 0V

VSENSE – VEE = 0.15V

VGATE = 3V

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