L6225 datasheet(4/20 Pages) STMICROELECTRONICS

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L6225

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(6) Also connected at the output drain of the Overcurrent and Thermal protection MOSFET. Therefore, it has to be driven putting in series a

resistor with a value in the range of 2.2k

Ω - 180KΩ, recommended 100kΩ

PIN DESCRIPTION

PACKAGE

Name

Type

Function

SO20/

PowerDIP20

PowerSO20

PIN #

IN1A

Logic Input

Bridge A Logic Input 1.

IN2A

Logic Input

Bridge A Logic Input 2.

SENSEA

Power Supply

Bridge A Source Pin. This pin must be connected to Power

Ground directly or through a sensing power resistor.

OUT1A

Power Output

Bridge A Output 1.

5, 6, 15, 16

1, 10, 11,

GND

Signal Ground terminals. In PowerDIP and SO packages,

these pins are also used for heat dissipation toward the

PCB.

OUT1B

Power Output

Bridge B Output 1.

SENSEB

Power Supply

Bridge B Source Pin. This pin must be connected to Power

Ground directly or through a sensing power resistor.

IN1B

Logic Input

Bridge B Logic Input 1.

IN2B

Logic Input

Bridge B Logic Input 2.

ENB

Logic Input (6)

Bridge B Enable. LOW logic level switches OFF all Power

MOSFETs of Bridge B. This pin is also connected to the

collector of the Overcurrent and Thermal Protection

transistor to implement over current protection.

If not used, it has to be connected to +5V through a

resistor.

VBOOT

Supply

Voltage

Bootstrap Voltage needed for driving the upper

PowerMOSFETs of both Bridge A and Bridge B.

OUT2B

Power Output

Bridge B Output 2.

VSB

Power Supply

Bridge B Power Supply Voltage. It must be connected to

the supply voltage together with pin VSA.

VSA

Power Supply

Bridge A Power Supply Voltage. It must be connected to

the supply voltage together with pin VSB.

OUT2A

Power Output

Bridge A Output 2.

VCP

Output

Charge Pump Oscillator Output.

ENA

Logic Input (6)

Bridge A Enable. LOW logic level switches OFF all Power

MOSFETs of Bridge A. This pin is also connected to the

collector of the Overcurrent and Thermal Protection

transistor to implement over current protection.

If not used, it has to be connected to +5V through a

resistor.

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