L6229PD datasheet(4/25 Pages) STMICROELECTRONICS

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L6229

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Figure 3. Pin Connections (Top view)

(5) The slug is internally connected to pins 1, 18, 19 and 36 (GND pins).

Table 5. Pin Description

PACKAGE

Name

Type

Function

SO24/

PowerDIP24

PowerSO36

PIN #

110

Sensor Input

Single Ended Hall Effect Sensor Input 1.

DIAG

Open Drain

Output

Overcurrent Detection and Thermal Protection pin. An

internal open drain transistor pulls to GND when an

overcurrent on one of the High Side MOSFETs is

detected or during Thermal Protection.

SENSEA

Power Supply

Half Bridge 1 and Half Bridge 2 Source Pin. This pin

must be connected together with pin SENSEB to

Power Ground through a sensing power resistor.

RCOFF

RC Pin

RC Network Pin. A parallel RC network connected

between this pin and ground sets the Current

Controller OFF-Time.

515

OUT1

Power Output

Output 1

6, 7,

18, 19

1, 18,

19, 36

GND

Ground

terminals.

PowerDIP24

and

SO24

packages,

these

pins

are

also

used

for

heat

dissipation toward the PCB. On PowerSO36 package

the slug is connected on these pins.

TACHO

Open Drain

Output

Frequency-to-Voltage open drain output. Every pulse

from pin H1 is shaped as a fixed and adjustable length

pulse.

RCPULSE

RC Pin

RC Network Pin. A parallel RC network connected

between this pin and ground sets the duration of the

Monostable Pulse used for the Frequency-to-Voltage

converter.

GND

TACHO

RCPULSE

SENSEB

FWD/REV

VREF

VBOOT

BRAKE

OUT3

VSB

GND

D01IN1194A

DIAG

SENSEA

RCOFF

OUT1

VSA

OUT2

VCP

GND

N.C.

VSA

RCOFF

OUT1

N.C.

TACHO

RCPULSE

N.C.

VSB

N.C.

GND

D01IN1195A

SENSEA

DIAG

SENSEB

FWD/REV

VREF

OUT2

VCP

BRAKE

OUT3

VBOOT

N.C.

PowerSO36 (5)

PowerDIP24/SO24

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