LAB

SEME

IP1844 SERIES

IP1845 SERIES

Prelim. 2/95

APPLICATIONS INFORMATION

V - Pin 4

(Pin 7 for 14 Pin D Package)

8

4

5

GND

REF

V

RC

TT

Internal Clock

Internal Clock

Output – Max. Duty Cycle

V - Pin 6

(Pin 10 for 14 Pin D Package)

Output – Max. Duty Cycle

V - Pin 6

(Pin 10 for 14 Pin D Package)

V - Pin 4

(Pin 7 for 14 Pin D Package)

LARGE

SMALL

LARGE

SMALL

Oscillator Waveforms and Maximum Duty Cycle

internal current source. During the discharge time, the internal clock signal blanks the

frequency and maximum duty cycle.

Charge and discharge times are determined by the formulae:

1

Resultant frequency f =

1.8

Resultant frequency f

≈

.0063 – 4

(

)