L6230PD datasheet(7/24 Pages) STMICROELECTRONICS

7 / 24 page

L6230

Pin connection

Doc ID 18094 Rev 2

7/24

Table 5.

Pin description

Type

Function

VBOOT

Power supply Bootstrap voltage needed for driving the upper power MOSFETs.

VCP

Output

Charge pump oscillator output.

DIAG-EN

Logic

output/input

Double function: chip Enable as input and Overcurrent/Over-temperature

indication as output.

LOW logic level switches OFF all Power MOSFETs, putting the power

stages in high impedance status.

An internal open drain transistor pulls to GND the pin when an overcurrent

on one of the High Side MOSFETs is detected or during Thermal

Protection.

IN1

Logic input

Logic input half bridge 1.

EN1

Logic input

Enable input half bridge 1.

IN2

Logic input

Logic input half bridge 2.

EN2

Logic input

Enable input half bridge 2.

IN3

Logic input

Logic input half bridge 3.

EN3

Logic input

Enable input half bridge 3.

CP-

Analog input

Inverting input of internal comparator.

CP+

Analog input

Non-Inverting input of internal comparator.

CPOUT

Output

Open-drain output of internal comparator.

SENSE3

Half bridge 3 source pin. This pin must be connected to power ground

through a sensing power resistor.

OUT3

Power output Output half bridge 3.

VSB

Power supply

Half bridge 3 power supply voltage. it must be connected to the supply

voltage together with pin VSA.

SENSE2

Half bridge 2 source pin. This pin must be connected to power ground

through a sensing power resistor.

OUT2

Power output Output half bridge 2.

SENSE1

Half bridge 1 source pin. This pin must be connected to power ground

through a sensing power resistor.

OUT1

Power output Output half bridge 1.

VSA

Power supply

Half bridge 1 and half bridge 2 power supply voltage. It must be connected

to the supply voltage together with pin VSB.

GND

Ground

Ground terminal.

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