Q

I

GND

PWM

ST

REF

D

Bias Supply

Bandgap

Reference

Comparator

+

−

Status

Delay

8

4

5

6

3

2

1

TL4242

TERMINAL FUNCTIONS

NO.

NAME

DESCRIPTION

1

PWM

Pulse-width modulation input. If not used, connect to I.

2

ST

3

GND

Ground

4

REF

Reference input. Connect to a shunt resistor.

5

D

Status delay. To set status reaction delay, connect to GND with a capacitor. If no delay is needed, leave open.

6

Q

Output

7

NC

No internal connection

8

I

Input. Connect directly to GND as close as possible to the device with a 100-nF ceramic capacitor.

Thermal

The thermal pad must be soldered directly to the PCB. It may be connected to ground or left floating.

Pad

FUNCTIONAL BLOCK DIAGRAM

2

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