L6226Q 查看數據表（PDF） - STMicroelectronics

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L6226Q

DMOS dual full bridge driver

STMicroelectronics 

Pin connection

L6226Q

Table 4. Pin description

N°

Pin

Type

Function

1, 21

GND

GND Signal ground terminals.

9

OUT1B Power output Bridge B output 1.

11

OCDB

Open drain

output

Bridge B overcurrent detection and thermal protection pin. An internal open

drain transistor pulls to GND when overcurrent on bridge B is detected or in

case of thermal protection.

12

SENSEB

Power supply

Bridge B source pin. This pin must be connected to power ground directly or

through a sensing power resistor.

13

IN1B

Logic input Bridge B input 1

14

IN2B

Logic input Bridge B input 2

15 PROGCLB

R pin

Bridge B overcurrent level programming. A resistor connected between this

pin and ground sets the programmable current limiting value for the bridge B.

By connecting this pin to ground the maximum current is set. This pin cannot

be left non-connected.

Bridge B enable. LOW logic level switches OFF all power MOSFETs of

16

ENB

Logic input bridge B.

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

17

VBOOT

Supply

voltage

Bootstrap voltage needed for driving the upper power MOSFETs of both

bridge A and bridge B.

19

OUT2B Power output Bridge B output 2.

20

VSB

Power supply

Bridge B power supply voltage. It must be connected to the supply voltage

together with pin VSA.

22

VSA

Power supply

Bridge A power supply voltage. It must be connected to the supply voltage

together with pin VSB.

23

OUT2A Power output Bridge A output 2.

24

VCP

Output Charge pump oscillator output.

Bridge A enable. LOW logic level switches OFF all power MOSFETs of

25

ENA

Logic input bridge A.

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

26 PROGCLA

R pin

Bridge A overcurrent level programming. A resistor connected between this

pin and ground sets the programmable current limiting value for the bridge A.

By connecting this pin to ground the maximum current is set. This pin cannot

be left non-connected.

27

IN1A

Logic input Bridge A logic input 1.

28

IN2A

Logic input Bridge A logic input 2.

29

SENSEA

Power supply

Bridge A source pin. This pin must be connected to power ground directly or

through a sensing power resistor.

30

OCDA

Open drain

output

Bridge A overcurrent detection and thermal protection pin. An internal open

drain transistor pulls to GND when overcurrent on bridge A is detected or in

case of thermal protection.

31

OUT1A Power output Bridge A output 1.

6/29

Doc ID 14335 Rev 5

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