L99DZ120 datasheet(38/162 Pages) STMICROELECTRONICS

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Electrical specifications

L99DZ120

38/162

DocID029145 Rev 4

3.4.12

Over Current Recovery settings

fPWMx(10) PWM switching frequency

VS/VSREG = 13.5 V;

V1 = 5 V

330

fPWMx(11) PWM switching frequency

VS/VSREG = 13.5 V;

V1 = 5 V

500

1. RLOAD = 16 Ω at OUT1,6 and OUT7,8 in low on-resistance mode

2. RLOAD = 4 Ω at OUT4,5

3. RLOAD = 128 Ω at OUT4,9,10,11,12,13,15,15,HS and OUT7,8 in high on-resistance mode

4. tCC is the switch-on delay time if complement in half bridge has to switch off

Table 16. Power outputs switching times (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Table 17. Half bridges (OUT1, OUT4, OUT5 and OUT6) OCR timing parameters

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Tblanking

Guaranteed by Design

µs

Tocr_hb

Over current filter time

for half bridges

Guaranteed by Design

µs

Toff_hb

OFF Time for half

bridges OCR_FREQ=0

Guaranteed by Design

218

264

310

µs

OFF Time for half

bridges OCR_FREQ=1

106

128

150

µs

Table 18. High-side (OUT7, OUT8 and OUT_HS) OCR timing parameters

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Tblanking

Guaranteed by Design

µs

Tocr_hs

Over current filter time

for high-side

Guaranteed by Design

µs

Toff_hs

OFF Time for high-side

OCR_FREQ=0

Guaranteed by Design

398

480

562

µs

OFF Time for high-side

OCR_FREQ=1

192

232

272

µs

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