ISL21440

2

FN6532.2

February 23, 2011

Block Diagram

Pin Configuration

ISL21440

(8 LD MSOP, 8 LD TDFN)

TOP VIEW

V+

OUT

IN-

HYST

GND

V-

REF

IN+

ISL21440

-

+

GND

OUT

1

2

3

4

REF

HYST

8

7

6

5

IN+

V+

IN-

V-

Pin Descriptions

PIN SYMBOL

DESCRIPTION

1

GND

Ground pin. Sets the Comparator output low level.

2

V-

Negative Supply Input for Voltage Reference and

Comparator.

3

IN+

Comparator non-inverting input pin. Range: V- to

V+ -1.5V.

4

IN-

Comparator inverting input pin. Range: V- to V+ -1.5V

5

HYST

Comparator Hysteresis input. Accepts a voltage divided

from the Reference output. Range is VREF - 50mV to

VREF. Connect directly to VREF for zero hysteresis.

6

REF

Reference output. Source 2mA and Sink 10µA.

7

V+

Positive Supply Input for Comparator and Reference.

Range is 2.0V to 11.0V

8

OUT

Comparator output, CMOS push-pull. Output swing

referenced to V+ and GND.