DS600 ±0.5°C Accurate Analog-Output Temperature Sensor

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PIN DESCRIPTION

PIN

NAME

FUNCTION

1

Supply Voltage.

2.7V to 5.5V

2

TO

Active-High Thermostat Output.

Open-drain output transitions from low to high when the output

3

TO

Active-Low Thermostat Output.

Open-drain output transitions from high to low when the output

4

Temperature Output.

Outputs a voltage that is proportional to the die temperature in degrees

centigrade. In shutdown mode, this pin goes high-Z.

5

Thermostat Trip Voltage.

User-selectable voltage that sets the thermostat trip-point temperature.

TO and

6

SD

Shutdown.

Power consumption and thermal sensor function are controlled through SD. This pin

functions as an active-high input pin. Driving this pin high puts the device in a low-power state and

discontinues thermal sensing.

7

CTG

Must be connected to GND.

8

GND

Ground.

Figure 1. Block Diagram

TEMPERATURE MEASUREMENT

The DS600 analog temperature sensor measures it own temperature and provides these measurements to the

characteristic is factory-calibrated for a typical output gain (

Its operating temperature range is -40°C to +125°C, corresponding to an output voltage range of 251mV to

+100°C temperature range and over the full 2.7V to 5.5V voltage range. Because the output voltage is positive for

the entire temperature range, there is no need for a negative supply.

Figure 2 shows the output voltage characteristic for the DS600.

TEMPERATURE

SENSOR

TO

TO

SD

GND

CONTROL

LOGIC

LEVEL-SHIFT

BUFFER

THERMOSTAT

COMPARATOR

2.7V to 5.5V

DS600