AN4043 datasheet(40/60 Pages) STMICROELECTRONICS

40 / 60 page

Package

AN4043

40/60

Doc ID 022726 Rev 2

Signal input

Pins: HINU, HINV, HINW; LINU, LINV, LINW; LINU, LINV, LINW

●

These pins control the operation of the built-in IGBTs.

●

The signal logic of HINU, HINV, HINW, LINU, LINV, and LINW pins is active high. The

IGBT associated with each of these pins is turned on when a sufficient logic (higher

than a specific threshold) voltage is applied to these pins.

●

The signal logic of LINU, LINV, LINW pins is active low. The IGBT associated with each

of these pins is turned on when a logic voltage (lower than a specific threshold voltage)

is applied to these pins.

●

The wiring of each input should be as short as possible to protect the SLLIMM-nano

against noise influence. RC coupling circuits should be adopted for the prevention of

input signal oscillation. Suggested values are R

=100

Ω and C=1nF.

Internal comparator non-inverting (only for the STGIPN3H60)

Pin: CIN

●

The current sensing shunt resistor, connected on each phase leg, may be used by the

internal comparator (pin CIN) to detect short-circuit current

●

The shunt resistor should be selected to meet the detection levels matched for the

specific application

●

An RC filter (typically ~1 µs) should be connected to the CIN pin to eliminate noise

●

The connection length between the shunt resistor and CIN pin should be minimized

●

If a voltage signal, higher than the specified VREF (see datasheet), is applied to this pin,

the SLLIMM-nano automatically shuts down and the SD / OD pin is pulled down (to

inform the microcontroller).

Shutdown / open drain (only for the STGIPN3H60)

Pins: SD / OD

●

There are two available pins of SD / OD which are exactly the same. They are placed

on the opposite ends of the package in order to offer higher flexibility to the PCB layout.

It is sufficient to use only one of the two pins for the proper functioning of the device.

●

The SD / OD pins work as enable/disable pins.

●

The signal logic of SD / OD pins are active low. The SLLIMM-nano shuts down if a

voltage lower than a specific threshold is applied to these pins, leading each half bridge

in tri-state.

●

The SD / OD status is connected also to the internal comparator status (

Section 2.3.6:

Short-circuit protection and smart shutdown function). When the comparator triggers,

the SD / OD pin is pulled down acting as a FAULT pin.

●

The SD / OD, when pulled down by the comparator, are open drain configured. The SD

/ OD voltage should be pulled up to the 3.3 V or 5 V logic power supply through a pull-

up resistor.

Integrated operational amplifier (only for the STGIPN3H60)

Pins: OP+, OP-, OPOUT

●

The op amp is completely uncommitted

●

The op amp performance is optimized for advanced control technique (FOC)

●

Thanks to the integrated op amp, it is possible to realize a compact and efficient board

layout, minimizing the required BOM list.

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