STDRIVE102BH datasheet(20/56 Pages) STMICROELECTRONICS

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The STDRIVE102BH/H implements two control modes: the enable/input mode (EN/IN) or the direct mode (INH/

INL), respectively explained in Section 5.2.1.1 and Section 5.2.1.2. The digital inputs assume a different function

according to the input mode selected:

•

In case the device is configured in Enable/Input mode:

–

INHx/INx → INx

–

INLx/ENx → ENx

•

In case the device is configured in Direct mode:

–

INHx/INx → INHx

–

INLx/ENx → INLx

In addition to the six digital inputs mentioned above, another digital input named EN (pin 47 for the

STDRIVE102BH and pin 1 for the STDRIVE102H) is used as general enable: in case it is forced to 0, all the six

gate drivers are set LOW, turning off all the external power MOSFETs. Setting EN to 1 activates the gate drivers,

which behave according to their related digital inputs. The EN pin also integrates an analog threshold Vrelease, to

release the latched condition after a FAULT event (refer to Section 5.6.1).

Figure 11. High-side driver simplified block diagram

VBOOT

GHSx

OUTx

Isource

Isink

Figure 12. Low-side driver simplified block diagram

VCC

GLSx

SLSx

Isource

Isink

STDRIVE102BH, STDRIVE102H

Device description

DS14545 - Rev 1

page 20/56

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