© 2007 Microchip Technology Inc.

DS21424D-page 3

TC4431/TC4432

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings†

Supply Voltage ....................................................... 36V

PDIP ............................................................ 730 mW

CERDIP ....................................................... 800 mW

SOIC............................................................ 470 mW

Storage Temperature Range .............. -65°C to +150°C

† Stresses above those listed under "Absolute Maximum

Ratings" may cause permanent damage to the device. These

are stress ratings only and functional operation of the device

at these or any other conditions above those indicated in the

operation sections of the specifications is not implied.

Exposure to Absolute Maximum Rating conditions for

extended periods may affect device reliability.

DC CHARACTERISTICS

Parameters

Sym

Min

Typ

Max

Units

Conditions

Input

Logic ‘1’, High Input Voltage

2.4

—

—

V

Logic ‘0’, Low Input Voltage

——

0.8

V

-1

—

1

µA

0V

≤ V

Output

High Output Voltage

—

V

Low Output Voltage

—

—

0.025

V

Output Resistance

—7

10

Ω

Peak Output Current

—

—

3.0

1.5

—

—

Latch-Up Protection

Withstand Reverse Current

—

0.3

—

A

Duty cycle

≤ 2%, t ≤ 300 µsec

Switching Time (Note 2)

Rise Time

—25

40

ns

Figure 4-1

Fall Time

—33

50

ns

Figure 4-1

Delay Time

—62

80

ns

Figure 4-1

Delay Time

—78

90

ns

Figure 4-1

Power Supply

Power Supply Current

—

—

2.5

0.3

4

0.4

mA

Start-up Threshold

—8.4

10

V

Drop-out Threshold

77.7

—

V

Note 3

Note 1:

For inputs >12V, add a 1 k

Ω resistor in series with the input. See Section 2.0 “Typical Performance

Curves” for input current graph.

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.