LTC1642IGN Ver la hoja de datos (PDF) - Linear Technology

Número de pieza

componentes Descripción

Fabricante

LTC1642IGN

Hot Swap Controller

Linear Technology 

LTC1642

DC ELECTRICAL CHARACTERISTICS

The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.

VCC = 5V unless otherwise specified.

SYMBOL PARAMETER

CONDITIONS

MIN TYP MAX UNITS

ICR

CRWBR Pin Current

CRWBR On, VCRWBR = 0V

CRWBR On, VCRWBR = 2.1V

CRWBR Off, VCRWBR = 1.5V

● – 30 – 45 – 60

µA

● –1000 –1500

µA

2.3

mA

VCB

Circuit Breaker Trip Voltage

VCB = (VCC – VSENSE), VFB = GND

● 15

25

36

mV

VCB = (VCC – VSENSE), VFB = 1V

● 45

52.5

60

mV

2.97V ≤ VCC ≤ 16.5V,

VCB = (VCC – VSENSE), VFB = GND

● 12

25

39

mV

VCB = (VCC – VSENSE), VFB = 1V

● 42

52.5

63

mV

ISENSE

SENSE Pin Input Bias Current

VCC = VSENSE = 16.5V

●

0.5

µA

IGATE

GATE Pin Output Current

Charge Pump On, VGATE = GND

Charge Pump Off, VGATE = 5V

● – 20 – 25 – 30

µA

10

mA

∆VGATE

External N-Channel Gate Drive

VGATE – VCC, VCC = 2.97V

VGATE – VCC, VCC = 5V

VGATE – VCC, VCC = 15V

● 4.5

5.9

8.0

V

● 10

11.5

14

V

● 4.5

8.5

18

V

VONHI

ON Pin Threshold

ON Rising

1.30 1.34 1.38

V

VONLO

ON Pin Threshold

ON Falling

● 1.20 1.22 1.26

V

VONHYST ON Pin Hysteresis

110

mV

ION(IN)

ON Pin Input Current

VON = 5V

●

0

±1

µA

VOL

Output Low Voltage

RESET, FAULT, COMPOUT IOL = 1.54mA ●

RESET, FAULT IO = 5mA

0.4

V

2

V

IPU

Logic Output Pull-Up Current

RESET, FAULT = GND

– 15

µA

VREF

Reference Output Voltage

No Load

● 1.208 1.220 1.232

V

∆VLNR

Reference Supply Variation

2.97V ≤ VCC ≤ 16.5V, No Load

●

5

15

mV

∆VLDR

Reference Load Regulation

IO = 0mA to –1mA, Sourcing Only

●

2.5

7.5

mV

IRSC

Reference Short-Circuit Current

VREF = 0V

4.5

mA

VCOS

Comparator Offset Voltage

VCM = VREF

●

±10

mV

VCHYST

Comparator Hysteresis

VCM = VREF

3

mV

Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.

TYPICAL PERFOR A CE CHARACTERISTICS

∆VGATE vs Temperature

16

14

12

VCC = 5V

VCC = 12V

10

VCC = 15V

8

6

VCC = 3V

4

2

0

–50 –25

0 25 50 75

TEMPERATURE (°C)

100 125

1642 G03

∆VGATE vs VCC

15

12

TA = 25°C

9

6

3

0

3

6

9

12

15

VCC (V)

1642 G26

IGATE vs Temperature

30

29

VCC = 3V

VCC = 5V

28

VCC = 12V

27

VCC = 15V

26

25

24

23

22

21 VGATE = 0V

20

–50 –25 0 25 50 75

TEMPERATURE (°C)

100 125

1642 G04

1642fb

3

Share Link: