AS8506C datasheet(33/94 Pages) AMSCO

tên linh kiện	AS8506C

Giải thích chi tiết về linh kiện	Battery Cell Monitor and Balancer IC

PDF	94 Pages

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nhà sản xuất	AMSCO [ams AG]

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33 / 94 page

ams Datasheet: 2014-Jun-23 [v1-00]

AS8506C – 33

Detaile d Desc rip t ion

Wake-up Event

The AS8506C device comes out of SLEEP mode by a wake pulse

on the WAKE_IN pin. To avoid false wake by noises on the

WAKE_IN, the wake signal (Low pulse) is taken through a

low-pass filter from WAKE_IN pin. When a pulse of width

Twake_pulse is given on the WAKE_IN by the microcontroller, the

device wakes up and enters into WAKE mode. The low-pass filter

discards all signals having width less than Tfilter_min and allows

all signals with width greater than Tfilter_max. The filter is

uncertain in Tuncertain region. The negative edge which is

passing through the filter will wake the device from SLEEP

mode. In chain of AS8506C devices, to propagate the negative

edge the microcontroller has to give minimum low pulse of

width Twake_pulse. Before entering into SLEEP mode the wake

pin must be ‘High’.

Figure 26:

WAKE-UP Signaling

WAKE_IN

wake_in_fltrd

Tfilter_min

Tfilter_max

Tuncertain

Twake_pulse

Tfilter_delay

AS8506C bảng dữ liệu(PDF) 33 Page - ams AG