TC4431/TC4432

DS21424B-page 4

 2002 Microchip Technology Inc.

TC4431/TC4432 ELECTRICAL SPECIFICATIONS (CONTINUED)

Electrical Characteristics: Over operating temperature range with 4.5V

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

Input

Logic 1, High Input Voltage

2.4

——

V

Logic 0, Low Input Voltage

——

0.8

V

Input Current (Note 1)

-1

—

1

Output

High Output Voltage

——

Low Output Voltage

——

0.025

V

Output Resistance

——

10

Ω

Switching Time (Note 2)

Rise Time

——

60

nsec

Figure 3-1

Fall Time

——

70

nsec

Figure 3-1

Delay Time

——

100

nsec

Figure 3-1

Delay Time

——

110

nsec

Figure 3-1

Power Supply

Power Supply Current

—

—

—

—

6

0.7

mA

Start-up Threshold

—

8.4

10

V

Drop-out Threshold

7

7.7

—

V

Note 3

Note

1:

For inputs >12V, add a 1k

Ω resistor in series with the input. See “Typical Characteristics” graph for input current.

2:

Switching times are ensured by design.

3:

For operation below 7V, pin 3 (LOCK DIS) should be tied to ground to disable the lockout and start-up circuit, otherwise, pin 3 must be left

floating.