Electrical specifications

L9958

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DocID17269 Rev 6

Figure 21. Thermal impedance (junction-ambient) of power packages

6.3

Range of functionality

Within the range of functionality, all L9958 functionalities have to be guaranteed. All voltages

refers to GND. Currents are positive into and negative out of the specified pin.

Table 17. Range of functionality

Pos.

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

FR1

Vps

Supply voltage

-

Vps_uv_off

14

28(1)

V

FR2

dVps/dt Supply voltage slew rate

-

-20

-

20

V/μs

FR3

Vdd

Logic supply voltage

-

Vdd_uv_off

5

Vdd_ov_off

V

FR4

dVdd/dt

Logic supply voltage slew

rate

-

-

-

0.025(2)

V/μs

FR5

Vi

Logic input voltage (SDI,

SCLK, NCS, DI, EN, DIR,

PWM)

See alsoTable 15:

Absolute maximum

ratings.

-0.3

-

Vdd_ov_off

V

FR6

Vddio

SDO output voltage

-

3

-

5.5

V

FR7

fspi

SPI clock frequency

-

-

-

5

MHz

1. In load dump conditions Vps ranges between 28V and 40V. During load dump, status of device outputs is kept unchanged,

2. To VDD pin are connected 10μF and 10nF (close to the pin) capacitors.