STSPIN32F0ATR datasheet(31/41 Pages) STMICROELECTRONICS

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STSPIN32F0A

Device description

DocID030766 Rev 2.0

31/41

Depending on the status of the OC_SEL signal (see Table 11: "OC protection selection")

the OC event is acting directly on the control logic of the gate driver switching off all high-

side gate outputs, and consequently the external high-side power switches.

Figure 15: Comparator

Table 11: OC protection selection

OC_SEL

(PA11)

Function

OC comparator output signal is visible only to MCU (default)

OC comparator output signal is visible to MCU and also acts on gate driver control

logic

Table 12: OC threshold values

OC_TH_STBY2

(PF6)

OC_TH_STBY1

(PF7)

OC threshold [mV]

Note

N.A.

Standby mode

(see Section 6.4: "Standby mode")

100

250

500

When the overcurrent condition disappears, the latched overcurrent signal is released only

after all the high-side outputs are kept low for at least tOCrelease time. (Refer to Figure 16:

"Driver logic overcurrent management signals").

To PB12 and PA12

of MCU and

control logic

COMP

OC th

OC_COMP

Rshunt

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