L9788 datasheet(25/264 Pages) STMICROELECTRONICS

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DS12308 Rev 4

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L9788

Absolute maximum ratings

263

2.3

Temperature ranges and thermal data

Note:

All parameters are tested in the temperature range Tj -40 - 150°C; device functionality at

high temperature is guaranteed by bench validation, electrical parameters are guaranteed

by correlation with ATE tests at reduced temperature and adjusted limits (if needed).

Temperature sensor present, please refer to Section 3.5.

Table 5. Pin classify

Pin classify

Global pin (ECU connector)

VB_IN VBAT_Sense VB_STBY VSENSE1/2 VESNSE3/4_MON

KEY_IN WK_IN MRD INJ1/2/3/4 O2H1/2 SOL1/2 RLY1/2/3/4/5

LED1/2 STR1/2/3_DRN STR1/2/3_SRC IGN1/2/3/4/5/6 LIN

PRD1/2/3/4/5_DRN

Direction pin (power and

I/O)

VDD_IO WDA SOE_OUT RSTN INJ_ENA MSC_EN MSC_CK_P

MSC_CK_N MSC_DI_P MSC_DI_N MSC_DO FLW_OUT

CURR_Sense_O2H1/2 PRD1/2/3/4/5_GATE EN_P EN_N LIN_TX

LIN_RX VDD5_IN CP EN_N EN_P

Local pins

VB_IN_SW Boost_G VPRE BUCK_SW Buck_C_BST VDD5_GATE

FLW_IN_P FLW_IN_N

GND pins

GND1 INJ1/2/3/4_PGND O2H1/2_PGND_A O2H1/2_PGND_B

GND

Table 6. Temperature ranges and thermal data

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

Operating temperature

-40

125

°C

Junction temperature

-40

175

°C

Tstr

Storage temperature

-50

175

°C

-RTHj-c(1)

Thermal resistance

junction to case

°C/W

-RTHj-a(1)

Thermal Resistance

junction to ambient

supposing a mounting on

board 2s2p + heatsink vias

(refer to application note

for PCB parameters)

-10-

°C/W

1. With 2s2p PCB thermally enhanced, cold plate as per std Jedec best practice guidelines (JESD51), assuming Pdiss = 5 W

dissipated statically and homogeneously, thermal vias under package exposed pad assuming filling ratio 50% and 35 µm

vias diameter (157 vias estimation); refer to Figure 3: Thermal simulation set-up on page 26.

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