CAT2300

http://onsemi.com

2

VREG

GND

Sense

KS

Kelvin

Gate

EN

250 mA

1

0

Figure 2. Simplified Block Diagram

+

−

Table 1. PIN FUNCTION DESCRIPTION

Pin No.

Pin Name

Function

1

Sense

Connects to Sense pin of SENSEFET and directs sensed current to IMEAS output.

2

KS

Kelvin Sense; a Kelvin connection for the current mirror control amplifier. This connection must be made

directly to Sense on the SENSEFET package. Do not share any trace length with CAT2300’s Sense lead.

3

Kelvin

Connects to Kelvin pin of the SENSEFET. Serves as the reference point for Sense lead biasing.

4

Gate

Connects to Gate of the SENSEFET and controls SENSEFET operation.

5

GND

Electrical ground for IC.

6

External voltage supply for driving the gate of the SENSEFET and power supply for CAT2300 internal

circuitry via an internal voltage regulator.

7

EN

Enable: High true logic input. Turns ON SENSEFET and CAT2300’s internal circuitry. A logic LOW on EN

grounds Gate, shutting off the SENSEFET and shuts down the internal current source and mirroring circuitry.

8

current flowing through the SENSEFET.

PAD

Backside paddle is internally connected to GND. This pad may be left floating but if connected with PCB it

must be to the ground plane of circuitry which is also grounded.

Parameter

Symbol

Value

Unit

6.5

V

Gate

±15

mA

6.5

V

Junction Temperature

150

°C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

1. Guaranteed by design.

Table 3. RECOMMENDED OPERATING CONDITIONS

Parameter

Symbol

Value

Unit

0.9 to 1.5

V

5

V

Maximum Junction Temperature

125

°C

Ambient Temperature Range

−40 to +85

°C