3

LTC1693

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Switching Timing (Note 4)

Output Rise Time

q

17.5

35

ns

q

48.0

85

ns

Output Fall Time

q

16.5

35

ns

q

42.0

75

ns

Output Low-High Propagation Delay

q

38.0

70

ns

q

40.0

75

ns

Output High-Low Propagation Delay

q

32

70

ns

q

35

75

ns

Driver Isolation

GND1-GND2 Isolation Resistance

LTC1693-1, LTC1693-2 GND1-to-GND2 Voltage = 75V

q

0.075

1

G

Ω

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

of a device may be impaired.

Note 2: Supply current is the total current for both drivers.

Note 3: Only the LTC1693-3 has a PHASE pin.

Note 4: All AC timing specificatons are guaranteed by design and are not

production tested.

Note 5: Only applies to the LTC1693-1 and LTC1693-2.

TYPICAL PERFOR A CE CHARACTERISTICS

TEMPERATURE (

°C)

–50

1.2

1.3

1.4

25

75

1693 G03

1.1

1.0

– 25

0

50

100

125

0.9

0.8

IN Threshold Hysteresis

vs Temperature

IN Threshold Voltage

vs Temperature

5

2.00

2.25

2.75

810

1693 G01

1.75

1.50

67

911

12

1.25

1.00

2.50

TEMPERATURE (

°C)

–50

2.75

25

1693 G02

2.00

1.50

–25

0

50

1.25

1.00

3.00

2.50

2.25

1.75

75

100

125