L9800 datasheet(23/55 Pages) STMICROELECTRONICS

部件名	L9800

功能描述	Automotive 8-channel LS driver

PDF	55 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

23 / 55 page

Figure 16. Scenario 3 power-down

tIDLE2SLEEP

VBATT

VDDIO

IDLE

POR

V3V3

V1V2

Scenario 3: idle to sleep transition with VDDIO and VBATT in their operative range (at least one of them).

IDLE is set to low, V3V3 supply reference and vbg drop, and POR is set to zero by tIDLE2SLEEP of about 10 μs. IN0

= IN1 = 0 V.

Figure 17. Scenario 4 power-down

tLH2SLEEP/tACTIVE2SLEEP

IN0

POR

OUT2D

VBATT

VDDIO

V3V3

V1V2

Scenario 4: limp to sleep transition (IDLE=0) and active to sleep transition (IDLE = 1 → 0) with VDDIO and

VBATT in their operative range (at least one of them). IN0 is set to low, V3V3 supply reference and vbg , POR

goes down to zero and the corresponding channel is switched off within 150 μs, IN1 can be already 0 or can

follow IN0 behavior.

L9800

Power supply

DS14041 - Rev 2

page 23/55

L9800 数据表(PDF) 23 Page - STMicroelectronics