ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Supply Voltage

10

V

Input Signals

7

V

Storage and Junction Temperatures

-40 to +150

°C

ELECTRICAL CHARACTERISTICS: (Refer to Block Diagram, Figure 2, and Timing Diagram, Figure 3)

= +5V unless otherwise specified.

Parameter

Symbol

Minimum

Typical

Maximum

Unit

Condition

(

Pin 12)

Supply Voltage

4.75

-

7

V

-

Quiscent Supply Current

-

300

400

uA

Outputs floating

(

Pins 11, 17, 18, 19, 20)

Input Voltage Low

0

-

0.75

V

-

Input Voltage High

2

-

V

-

Input Current

-

-

50

nA

Input Current

-

-

50

nA

(

Pin 10)

Enable Input Voltage Low

0

-

1.3

V

-

2

-

V

-

Enable Input Current

-

-

50

nA

Enable Input Current

-

-

50

nA

(

Pins 4, 6, 7, 9)

-

-

0.5

V

4.0

-

-

V

(

Pins 5, 8)

-

-

0.5

V

4.0

-

-

V

(

Pin 3)

Leakage Current

-

-

1

uA

Saturation Voltage

-

-

0.4

V

I = 5mA

(

Pins 13, 14, 15)

-

5

-

mV

Comparator Bias Current

100

-

10

uA

-

(

Pin 15)

Input Reference Voltage

0

-

3

V

-

Input Current

-

-

8

uA

Clock Time Step

0.5

-

-

us

-

Pulse Width

Set up time

1

-

-

us

-

Hold time

4

-

-

us

-

Reset time

1

-

-

us

-

Reset to Step delay

1

-

-

us

-

(

Pin 16)

Oscillator:

Sawtooth Low

-

2.1

-

V

-

Sawtooth High

-

3.65

-

V

-

Frequency

-

30

-

kHz

R = 22kΩ, C = 3.3nF

8297-040109-3