L9800 datasheet(27/55 Pages) STMICROELECTRONICS

27 / 55 page

Symbol

Description

Comment

Min. Nom.

Max.

Unit

VBATT = VDDIO - 1 V

IVDDIO(ACTIVE_COR)

Logic supply current in

active mode–channels

OFF from VDDIO pin

when VBATT is higher

than VDDIO (the device

is supplied by VDDIO)

VIDLE = 5 V, VINn = 0 V,

VDDIO = 5 V, fSCLK = 0 MHz,

CFG_1.ACT = 1B, PWM_SPI.OUTn = 0B,

DIAG_OFF_EN.OUTn = 0B

1.2

TVDDIOUVFLT

VDDIO undervoltage

filter

Covered by SCAN

µs

Timings

tIDLEFLT

Idle filter time

Covered by SCAN

4.9

µs

tSLEEP2IDLE

Sleep to idle delay

Covered by SCAN

120

µs

tIDLE2SLEEP

Idle to sleep delay

From IDLE pin to sleep external pull-down

MISO to GND required covered by SCAN

µs

tIDLE2ACTIVE

Idle to active delay

From INn or NCS pins to MODE = 11B,

covered by SCAN

µs

tACTIVE2IDLE

Active to idle delay

From INn or NCS pins to MODE = 10B,

covered by SCAN

150

µs

tSLEEP2LH

Sleep to limp-home

delay

From INn pins to VDS = 10% VBATT,

covered by SCAN

120 + tON

µs

tLH2SLEEP

Limp-home to sleep

delay

From INn pins to MODE = 00B,

external pull-down MISO to GND required,

covered by SCAN

tOFF_POR

µs

tLH2ACTIVE

Limp-home to active

delay

From IDLE pin to MODE = 11B

covered by SCAN

µs

tACTIVE2LH

Active to limp-home

delay

From IDLE pin to MODE = 01B,

covered by SCAN

µs

tACTIVE2SLEEP

Active to sleep delay

From IDLE pin to MODE = 00B,

External pull-down MISO to GND required,

Covered by SCAN

tOFF_POR

µs

tOFF_POR

Channel switch off time

with passive pull-down

(NPOR=0)

From NPOR = 0 V to VDS = 90% VBATT

150

µs

Note:

All the digital filtering times reported in Table 11 are to be considered without spread spectrum.

L9800

Power supply

DS14041 - Rev 2

page 27/55

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