Application schematics

AN4210

4/12

Doc ID 023963 Rev 1

1

Application schematics

The evaluation boards themselves do not have any components other than the high-side

driver that is mounted on it. The schematics provided in this document are recommended for

their proper functionality. All designs have different needs and requirements. Whatever

design you decide to use, it will still need to be verified in order to meet your application

specifications. ST implies no guarantee or warranty (see Appendix A: Reference

documents).

Note:

When more than one pin is used for an output, all output pins must be tied together for

proper operation.

ST has produced two user manuals: the UM1556 (for 12 V devices) and the UM1557

(for 24 V devices) (see Appendix A: Reference documents). Those user manuals are

VIPower hardware design guides that provide the necessary information to successfully

design your circuit using our VIPower drivers.

1.1

Digital feedback designs

These devices have a logic level fault pin that is pulled low when a fault is detected and the

status disable (STAT_DIS) pin is held low. The feedback is an open Drain configuration and

requires a pull-up resistor for proper operation. For this package type (PowerSSO-12) there

are single, and dual output devices.

Figure 3.

Typical single output HSD with digital feedback block diagram