NCT375

www.onsemi.com

2

Figure 1. Simplified Block Diagram

1

TWO-WIRE

INTERFACE

DELTA-SIGMA

ADC

CONTROL

LOGIC

REGISTERS

CONFIGURATION

TEMPERATURE

ONE-SHOT

2

5

6

7

8

4

3

OS/ALERT

GND

SDA

SCL

A2

A1

A0

Figure 2. Typical Application Circuit

1

2

5

6

7

4

3

OS/ALERT

GND

SDA

SCL

A2

A1

A0

ADDRESS

(SET AS DESIRED)

SERIAL INTERFACE

NOTE: SDA, SCL AND OS/ALERT PINS

NCT375

Table 1. PIN FUNCTION DESCRIPTION

Pin No.

Pin Name

Description

1

SDA

2

SCL

Serial Clock Input. Open-drain pin; needs a pull-up resistor.

3

OS/ALERT

Over-temperature Indicator. Open-drain output; needs a pullup resistor. Active Low output.

4

GND

Power Supply Ground.

5

A2

6

A1

7

A0

8

Positive Supply Voltage, 3.0 V to 5.5 V. Bypass to ground with a 0.1 mF bypass capacitor.