L9908 datasheet(14/152 Pages) STMICROELECTRONICS

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3. The maximum voltage drop experienced by internal structures has to be limited to 100V in order to avoid damages. The HS

pre-driver stage may experience together the maximum voltage and the minimum voltage all over L9908 respectively

imposed by CP2 output voltage or CBS_n and SHS_n negative pulses. HS pre-driver then must be protected by ensuring

that the absolute maximum voltage on CP2 or on CBS_n never takes place simultaneously with the absolute minimum

voltage on SHS_n so that: VDH * VPRE - SHSn ≤ 100 W

Note:

Integrated protection and diagnostics are designed to prevent device damage under the fault conditions defined

in the functional description. Fault conditions are considered to be out of normal operating range. Protection

functions are not designed for a continuous repetitive operation.

2.3

ESD resistivity

Table 7. ESD resistivity (pin level)

Symbol

Parameter

Test Condition

Min

Typ

Max

Unit

Notes

HBM_LOC_ESD

HBM (Local Pins)(1)

All pins(2)

-2

Class 2

HBM_GLO_ESD

HBM (Global Pins)(1)

VBP, VDH, SHS_n

-4

Class 3A

CDM _ESD

CDM (1)

All pins

-500

500

Class C3

CDM_COR_ESD

CDM (1)

Corner pins

-750

750

Class C4

LUT

Latch Up (3)

All pins

-100

100

1. According to AEC-Q100-011

2. Pins are all GND connected together.

3. According to AEC-Q100-004

2.4

Temperature ranges and thermal data

Table 8. Temperature ranges and thermal data

Symbol

Parameter

Min Typ Max Unit

Notes

Tamb

Operating temperature (ECU environment)

-40

150

°C

Tj(1)

Operating junction temperature

-40

150

°C

Extended operating junction temperature

-40

175

°C

200h over life time

Tsto

Storage temperature

-55

150

°C

RthJ-A(2) Thermal resistance junction-to-ambient

°C/W Homogeneous internal power distribution (3)

RThj-cb(2) Thermal resistance junction-to-case-bottom

2.1

°C/W

Homogeneous internal power distribution

1. All parameters are guaranteed and tested, in the temperature range Tj -40 ÷ 150°C unless otherwise specified. The device

is still operative and functional at higher temperatures (up to Tj 175°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).

2. Not subject to production test, guaranteed by design.

3. RthJA value is retrieved according to Jedec JESD51-2,-5,-7 guideline with a 2s2p board.

Figure 5. 2s2p PCB with thermal vias

L9908

Absolute maximum ratings

DS13546 - Rev 5

page 14/152

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