L6219R

Block diagram & pins description

5/16

1

Block diagram & pins description

Figure 1.

Block diagram

Figure 2.

Pin connection (Top view)

Table 1.

Pin description

Pin #

Name

Description

1;2

OUTPUT A

See pins 5;21

3;23

SENSE

RESISTOR

Connection to Lower Emitters of Output Stage for Insertion of Current

Sense Resistor

4;22

COMPARATOR

INPUT

Input connected to the comparators. The voltage across the sense

resistor is feedback to this input throught the low pass filter RC CC. The

higher power transistors are disabled when the sense voltage exceeds

the reference voltage of the selected comparator. When this occurs the

current decays for a time set by RT CT (toff = 1.1 RT CT). See fig. 4.

5;21

OUTPUT B

Output Connection. The output stage is a "H" bridge formed by four

transistors and four diodes suitable for switching applications.

6;19

GROUND

See pins 7;18