VNH3ASP30TR-E datasheet(8/18 Pages) STMICROELECTRONICS

Numer części	VNH3ASP30TR-E

Szczegółowy opis	AUTOMOTIVE FULLY INTEGRATED H-BRIDGE MOTOR DRIVER

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Producent	STMICROELECTRONICS [STMicroelectronics]

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VNH3ASP30-E

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Figure 5. Typical Application Circuit For Dc To 20KHz PWM Operation

In case of a fault condition the DIAGX/ENX pin is consid-

ered as an output pin by the device.

The fault conditions are:

- overtemperature on one or both high sides (for example

if a short to ground occurs as it could be the case

described in line 1 and 2 in the table below);

- short to battery condition on the output (saturation

detection on the Low-Side Power MOSFET).

Possible origins of fault conditions may be:

OUTA is shorted to ground ---> overtemperature

detection on high side A.

OUTA is shorted to VCC ---> Low-Side Power MOSFET

saturation detection.

When a fault condition is detected, the user can know

which power element is in fault by monitoring the INA,

INB, DIAGA/ENA and DIAGB/ENB pins. In any case,

when a fault is detected, the faulty leg of the bridge is

latched off. To turn-on the respective output (OUTX)

again, the input signal must rise from low to high level.

Table 15. Truth Table In Fault Conditions (detected on OUTA)

M

µC

Reg 5V

+ 5V

HSA

HSB

LSA

LSB

VCC

DIAGA/ENA

CS

INA

PWM

OUTA

OUTB

D

S

G

b) N MOSFET

3.3K

1K

10K

33nF

1.5K

VCC

100K

INA

INB

DIAGA/ENA

DIAGB/ENB

OUTA

OUTB

CS

1

0

1

OPEN

H

High Imp.

1

0

1

OPEN

L

High Imp.

0

1

0

1

OPEN

H

IOUTB/K

0

1

OPEN

L

High Imp.

X

0

OPEN

High Imp.

X

1

0

1

OPEN

H

IOUTB/K

X

0

1

OPEN

L

High Imp.

Fault Information

Protection Action

Podobny numer części - VNH3ASP30TR-E

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STMicroelectronics	VNH3ASP30-E	1Mb / 22P	for car body applications

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