L6235Q datasheet(4/33 Pages) STMICROELECTRONICS

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Pin connection

L6235Q

4/33

Doc ID 018997 Rev 2

Pin connection

Figure 2.

Pin connection (top view)

Note:

The exposed PAD must be connected to GND pin.

AM02556v1

EPAD

OUT1

TACHO

GND

VSA

VSB

GND

Table 3.

Pin description

Name

Type

Function

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.

45, 46

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.

2, 3

OUT1

Power output

Output 1

6, 31

GND

Ground terminals.

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.

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