3

44411f

LTC4441/LTC4441-1

The

ELECTRICAL CHARACTERISTICS

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: The LTC4441E/LTC4441E-1 are guaranteed to meet performance

specifications from 0°C to 70°C. Specifications over the –40°C to 85°C

operating temperature range are assured by design, characterization and

correlation with statistical process controls. The LTC4441I/LTC4441I-1 are

guaranteed and tested over the – 40°C to 85°C operating temperature

range.

Note 3: Failure to solder the Exposed Pad of the MSE package to the PC

board will result in a thermal resistance much higher than 38°C/W.

Note 4: Supply current in normal operation is dominated by the current

needed to charge and discharge the external power MOSFET gate. This

current will vary with supply voltage, switching frequency and the external

MOSFETs used.

Note 5: Rise and fall times are measured using 10% and 90% levels. Delay

times are measured from 50% of input to 20%/80% levels at driver

output.

Note 6: Blanking time is measured from 50% of OUT leading edge to 10%

of BLANK with a 1kΩ pull-up at BLANK pin. LTC4441 only.

Note 7: Guaranteed by design, not subject to test.

Note 8: This IC includes overtemperature protection that is intended to

protect the device during momentary overload conditions. The junction

temperature will exceed 125°C when overtemperature protection is active.

Continuous operation above the maximum operating junction temperature

may impair device reliability.

TYPICAL PERFOR A CE CHARACTERISTICS

IN Low Threshold Voltage

vs Temperature

IN High Threshold Voltage

vs Temperature

EN Pin Input Threshold Voltage

vs Temperature

TEMPERATURE (°C)

–50

25

4441 G01

–25

0

50

1.8

1.7

1.6

1.5

1.4

1.3

1.2

1.1

1.0

75

100

125

TEMPERATURE (°C)

–50

25

4441 G02

–25

0

50

2.8

2.7

2.6

2.5

2.4

2.3

2.2

2.1

2.0

75

100

125

TEMPERATURE (°C)

–50

25

4441 G03

–25

0

50

1.26

1.24

1.22

1.20

1.18

1.14

1.10

1.06

1.16

1.12

1.08

1.04

75

100

125

RISING EDGE

FALLING EDGE

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Output

Driver Output Pull-Down Resistance

●

0.35

0.8

Ω

Driver Output Peak Pull-Up Current

6

A

Driver Output Peak Pull-Down Current

6

A

BLANK Pin Pull-Down Resistance

11

Ω

RBLANK Pin Voltage

1.3

V

Switching Timing

Driver Output High-Low Propagation Delay

30

ns

Driver Output Low-High Propagation Delay

36

ns

Driver Output Rise Time

13

ns

Driver Output Fall Time

8

ns

Driver Output High to BLANK Pin High

200

ns