Operating conditions

L9758

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DocID14273 Rev 5

3

Operating conditions

3.1

Absolute maximum ratings

This part may be irreparably damaged if taken outside the specified absolute maximum ratings.

Operation above the absolute maximum ratings may also cause a decrease in reliability.

Warning:

Exceeding these values might destroy this part. This part is

not guaranteed to function properly at these ratings.

The CMOS inputs and outputs should never go above 5 V +

0.3 V or below GND - 0.3 V without protection (series

resistance). If this occurs, the device might be destroyed by

latch-up and/or the output levels might not be controlled by

the inputs. Unused inputs must be connected to GND and

unused outputs should be left open and programmed to a low

state. Unused I/O pins should be programmed as outputs, left

open, and programmed to a low state.

Table 4. Absolute maximum ratings

Symbol

Parameter

Value

Unit

VBAT,

VBAT_SW,

VBAT_S

Battery supply voltage

-0.3 to 40

V

VIGN

Ignition input voltage (with at least 10K external resistance)

-2.0 to 40

V

VI-digital

Digital input voltages (PSU_EN, VS_EN, VPROG1, VPROG2,

VPROG3, VDDL/VCORE_EN, REF_SEL)

-0.3 to 7

V

VI-analog

Analog input voltages (REXT, TRACK_REF, RST_TIM

VDDL_FDBK, VCORE_FDBK)

-0.3 to 7

V

VB

Linear regulator supply (VB)

-0.3 to 40

V

VFDBK

Switching feedback (FDBK)

-0.3 to 40

V

VSW

Buck regulator switch output (SW)

-2 to 40

V

VO-digital

Digital output voltages (IGN_ON, RSTL, RST5, BOOST,

STBY_OK)

-0.3 to 7

V

VOR

Regulator output voltages (VDD5, VSTBY, VKAM)

-0.3 to 7

V

VVSx

Regulator output voltages (VSA, VSB, VSC, VSD)

-3 to 40

V

VCORE_DRV,

VDDL_DRV

External regulator predriver output (VCORE_DRV, VDDL_DRV)

-0.3 to 15

V

ISMPS

Switching preregulator current

0 to 4.2

A

Top

Operating temperature

-40 to 125

°C

Tstg

Storage temperature

-50 to 150

°C

Tj

Max junction temperature

150

°C

VESD

Max ESD (human body model)

±2

KV