L9954TR datasheet(8/37 Pages) STMICROELECTRONICS

8 / 37 page

Block diagram and pin description

L9954 / L9954XP

8/37

Doc ID 14279 Rev 4

Figure 2.

Configuration diagram (top view)

OUT4,

OUT5

Highside-driver-output 4 and 5

Each output is built by a highside switch and is intended for resistive

loads, hence the internal reverse diode from GND to the output is

missing. For ESD reason a diode to GND is present but the energy

which can be dissipated is limited. Each highside driver is a power

DMOS transistor with an internal parasitic reverse diode from each

output to VS (bulk-drain-diode). Each output is over-current and open

load protected.

15, 16, 17, 20,

21, 22, 23, 24,

29, 30, 34

Not connected pins.

Table 2.

Pin definitions and functions (continued)

Symbol

Function

GND 1

OUT6 2

OUT1 3

CM / PWM2

Vcc

GND

OUT4

OUT6

PWM1

GND

OUT5

OUT3

OUT2

CSN

GND

CLK

PowerSO-36

PowerSSO-36

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