LT1161 datasheet(2/12 Pages) LINER

Part #	LT1161

Description	Quad Protected High-Side MOSFET Driver

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Manufacturer	LINER [Linear Technology]

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LT1161

Supply Voltages (Pins 11, 20) ................... – 15V to 60V

Input Voltages (Pins 3, 5, 7, 9) ...... (GND – 0.3V) to 15V

Gate Voltages (Pins 12, 14, 16, 18) ........................ 75V

Sense Voltages (Pins 13, 15, 17, 19).................. V +

±5V

Current (Any Pin) .................................................. 50mA

Operating Temperature Range

LT1161C ............................................... 0

°C to 70°C

LT1161I ............................................ – 40

°C to 85°C

Junction Temperature Range (Note 1)

LT1161C .............................................. 0

°C to 125°C

LT1161I ......................................... – 40

°C to 150°C

Storage Temperature Range ................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

ABSOLUTE MAXIMUM RATINGS

PACKAGE/ORDER INFORMATION

θJA = 70°C/ W (N)

θJA = 110°C/ W (S)

ORDER PART

NUMBER

LT1161CN

LT1161CS

LT1161IN

LT1161IS

1

2

3

4

5

6

7

8

9

10

TOP VIEW

N PACKAGE

20-LEAD PLASTIC DIP

S PACKAGE

20-LEAD PLASTIC SOL

20

19

18

17

16

15

14

13

12

11

GND

TIMER1

INPUT 1

TIMER 2

INPUT 2

TIMER 3

INPUT 3

TIMER 4

INPUT 4

GND

V+

SENSE 1

GATE 1

SENSE 2

GATE 2

SENSE 3

GATE 3

SENSE 4

GATE 4

V+

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IS

Supply Current

All Channels OFF (Note 2)

3

4.5

6.5

mA

∆IS(ON)

Delta Supply Current (ON State)

Measure Increase in IS per Channel

1

1.35

mA

VINH

Input High Voltage

q

2V

VINL

Input Low Voltage

q

0.8

V

IIN

Input Current

VIN = 2V

q

15

30

50

µA

VIN = 5V

q

55

110

185

µA

CIN

Input Capacitance

5pF

VT(TH)

Timer Threshold Voltage

VIN = 2V, Adjust VT

q

2.7

3

3.3

V

VT(CL)

Timer Clamp Voltage

VIN = 0.8V

3.2

3.5

3.8

V

IT

Timer Charge Current

VIN = VT = 2V

9

14

20

µA

VSEN

Drain Sense Threshold Voltage

50

65

80

mV

Temperature Coefficient

+0.33

%/

°C

ISEN

Drain Sense Input Current

V + = 48V, VSEN = 65mV

0.5

1.5

µA

VGATE – V

+

Gate Voltage Above Supply

V + = 8V

4

4.5

6

V

V + = 12V

q

7

8.5

10

V

V + = 24V

q

10

12

14

V

V + = 48V

q

10

12

14

V

tON

Turn-ON Time

V + = 24V, VGATE > 32V, CGATE = 1000pF

100

220

400

µs

tOFF

Turn-OFF Time

V + = 24V, VGATE < 2V, CGATE = 1000pF

75

200

µs

tOFF(CL)

Current Limit Turn-OFF Time

V + = 24V, (V + – VSENSE ) → 0.1V, CGATE = 1000pF

25

50

µs

TA = 25°C, V

+ = 12V to 48V each channel, unless otherwise noted.

ELECTRICAL CHARACTERISTICS

Note 2: Both V + pins (11, 20) must be connected together and both

ground pins (1, 10) must be connected together.

The q denotes specifications which apply over the full operating

temperature range.

Note 1: TJ is calculated from the ambient temperature TA and power

dissipation PD according to the following formulas:

LT1161CN, LT1161IN: TJ = TA + (PD × 70°C/W)

LT1161CS, LT1161IS: TJ = TA + (PD × 110°C/W)

Consult factory for Military grade parts.

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