AS8650 datasheet(22/46 Pages) AMSCO

部件名	AS8650

功能描述	High-efficient Power Management Device with High-speed CAN Interface

PDF	46 Pages

Scroll/Zoom	100%

制造商	AMSCO [ams AG]

网页	http://www.ams.com

标志

22 / 46 page

www.austriamicrosystems.com/AS8650

Revision 1.0

22 - 46

AS8650

Datasheet - Detailed Descr i p ti on

Figure 9. Wake Input Pin Behavior

7.12.6 Remote Wake-up

In all low power modes, if the differential voltage on the bus becomes recessive for longer than t_BUS_WR, WAKE_REMOTE rises up. If the

differential voltage on the bus becomes dominant for longer than t_BUS_WR, WAKE_REMOTE falls down as shown in Figure 10.

Figure 10. Remote Wake-up Event

A remote wake request is detected after two dominant pulses with each pulse separated by a recessive pulse of at least Trec (wake). The remote

wake detection circuit is active in sleep and standby modes. The wake message pattern is shown in Figure 11.

WAKE

TL_wake

PULL UP

PULL DOWN

TLW_filter

PULL UP

VSUP

Local wake detected

TL_wake

TLW_filter

WAKE_LOCAL

V_LWUTH

V_RxD_h

V_RxD_l

Vin_diff

WAKE_REMOTE

VIO

t_BUS_WR

AS8650 数据表(PDF) 22 Page - ams AG