L6219R

2/11

Figure 3. Pin Connection (Top view)

Table 2. Pin Description

Note: ESD on GND, VS, VSS, OUT 1A and OUT 2A is guaranteed up to 1.5KV (Human Body Model, 1500W, 100pF).

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

7;18

GROUND

Ground Connection. With pins 6 and 19 also conducts heat from die to printed circuit

copper.

8;20

INPUT 0

See INPUT 1 (pins 9;17)

9;17

INPUT 1

These pins and pins 8;20 (INPUT 0) are logic inputs which select the outputs of the

comparators to set the current level. Current also depends on the sensing resistor and

reference voltage. See Funcional Description.

10;16

PHASE

This TTL-compatible logic inputs sets the direction of current flow through the load. A

high level causes current to flow from OUTPUT A (source) to OUTPUT B (sink). A

schmitt trigger on this input provides good noise immunity and a delay circuit prevents

output stage short circuits during switching.

11;15

REFERENCE

VOLTAGE

A voltage applied to this pin sets the reference voltage of the comparators, this

determining the output current (also thus depending on Rs and the two inputs INPUT

0 and INPUT 1).

12;14

RC

A parallel RC network connected to this pin sets the OFF time of the higher power

transistors. The pulse generator is a monostable triggered by the output of the

comparators (toff = 1.1 RT CT).

13

Vss - LOGIC

SUPPLY

Supply Voltage Input for Logic Circuitry

24

Vs - LOAD

SUPPLY

Supply Voltage Input for the Output Stages.