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AS8846 Datasheet(PDF) 20 Page - ams AG

Part # AS8846
Description  Programmable PWM DC Motor Driver / Controller
PDF  35 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS8846 Datasheet(HTML) 20 Page - ams AG

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Data Sheet AS8446
Revision 1.8, Date 2005-03-17
Page 20 of 35
Programming of the analog MUX
R15 = 0
à A_current
(normal current measurement channel)
R15 = 1
à A_overc
(over current measurement channel)
R15 = 2
à Vbat_mon
(Vbat measurement channel)
R15 = 3
à TP
(temperature measurement channel)
The following signals can be given at the ADC output for chip test
purposes:
R15 = 4
à Vtemp
(temperature voltage of the internal sensor)
R15 = 5
à PVover
(Over voltage Vbat signal)
R15 = 6
à PVunder
(Under voltage Vbat signal)
R15 = 7
à PTover_in
(Over temperature signal, internal)
R15 = 8
à PTover_ex
(Over temperature signal, external)
Register write by: Three-Wire Interface
Register read by: Three-Wire Interface and analog MUX
---
-
d3
d2
d1
d0
R15<3:0>
ADC_CH
---
-
0
0
00
start up values
Note:
Do not switch the analog MUX during operation!
Programming of the watch dog
R16 = 0
à watch dog is off (watch dog not used)
R16 =1
à watch dog is on (watch dog used)
Register write by: Three-Wire Interface
Register read by: Three-Wire Interface and watch dog
---
----
d0
R16<0:0>
WATCH_D
---
----
0
start up values
Programming of the sleep mode
R17 = 0
à no sleep mode (normal operation)
R17 = 1
à sleep mode (power down)
Register reset to low by the Wake-up Interface.
Wake-up = low (high / low edge)
à R17<0:0> set to low
---
----
d0
R17<0:0>
SLEEP
---
----
1
start up values



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