LT1161CN datasheet(3/12 Pages) LINER

Part #	LT1161CN

Description	Quad Protected High-Side MOSFET Driver

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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3

LT1161

1161fa

Supply Current

TYPICAL PERFORMANCE CHARACTERISTICS

INPUT VOLTAGE (V)

0

20

18

16

14

12

10

8

6

4

2

0

40

1161 G01

10

20

30

50

ALL CHANNELS ON

ALL CHANNELS OFF

Automatic Restart Period

INPUT VOLTAGE (V)

0

30

50

1161 G02

10

20

40

16

14

12

10

8

6

4

2

0

TJ = 85°C

TJ = –40°C

TJ = 25°C

MOSFET Gate Voltage Above V +

GATE VOLTAGE ABOVE V+ (V)

024

8

100

10

1

0.1

610

12

14

16

1161 G03

V+

≥ 24V

V+ = 8V

V+ = 12V

MOSFET Gate Drive Current

TEMPERATURE (°C)

–50

–25

0

25

50

1161 G04

75

20

18

16

14

12

10

8

6

4

2

0

100

V+ = 24V

ALL CHANNELS ON

ALL CHANNELS OFF

Supply Current

TEMPERATURE (°C)

–50

–25

0

25

50

1161 G05

75

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

100

V+ = 24V

TURN-ON

TURN-OFF

Input Threshold Voltage

TEMPERATURE (°C)

–50

–25

0

25

50

1161 G06

75

110

100

90

80

70

60

50

40

30

20

10

100

V+ = 24V

Drain Sense Threshold Voltage

INPUT VOLTAGE (V)

0

500

450

400

350

300

250

200

150

100

50

0

40

1161 G07

10

20

30

50

IRFZ34

Turn-ON Time Driving MOSFET

INPUT VOLTAGE (V)

0

100

90

80

70

60

50

40

30

20

10

0

40

1161 G08

10

20

30

50

IRFZ34

NORMAL

CURRENT LIMIT

Turn-OFF Time Driving MOSFET

TEMPERATURE (°C)

–50

10

100

1000

25

–25

0

50

75

100

1161 G09

V+ = 24V

CT = 3.3µF

CT = 1µF

CT = 0.33µF

CT = 0.1µF

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