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AS8506C Datasheet(PDF) 32 Page - ams AG

Part # AS8506C
Description  Battery Cell Monitor and Balancer IC
PDF  94 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS8506C Datasheet(HTML) 32 Page - ams AG

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AS8506C – 32
ams Datasheet: 2014-Jun-23 [v1-00]
De tail ed De sc rip t ion
Figure 25:
Diagnosis and Compare and Balance Phase with Time Sequence for AS8506C
Sleep Mode
This is the least power consumption mode of AS8506C. In this
mode only pre-reg is ON, rest all analog blocks are OFF and
digital clock is disabled. Only a digital wake detection circuit is
active. The device enters into this mode when there is no trigger
from microcontroller for time greater than WAIT mode timeout
period.
Wait Mode
This mode is a transition mode, where the device waits for
command on TRIG_IN pin either from microcontroller, (or) from
below module in case of stack system. The device will be in this
state for TWMODE_TOUT period. After the timeout, the device
enters into SLEEP mode. In the WAIT period all power blocks are
ON, all analog blocks are ON and digital is also functional. In
this mode, power consumption is lesser than NORMAL mode
because there are no charge balancing activities being carried
out.
Wake Mode
This is also a transition mode, where the device does
initialization after exiting SLEEP mode. In the SLEEP mode if
AS8506C receives a wake pulse of width TWAKE, the device
enters into WAKE mode. In the WAKE mode device enables the
V5V LDO and waits for V5V_por_n signal. Once V5V_por_n
signal becomes ‘High’, the device enters into WAIT mode.
Balance Phase
Compare Phase
Compare Phase
PWM
PWM
PWM
PWM
Charging
Charging
Charging
Charging
Cell
Connected
Vcell1 < Vref
Need Charging
Idle
Time
Idle
Time
Idle
Time
Cell
Connected
Vcell2 > Vref
Don’t Need
Charging
Cell
Connected
Vcell3 < Vref
Need Charging
Cell
Connected
Vcell4 < Vref
Need Charging
Cell
Connected
Vcell6 < Vref
Need Charging
Cell
Connected
Vcell5 > Vref
Don’t Need
Charging
Cell
Not
Connected
Tc_slot
Tc_slot
Tc_slot
Tc_slot
Tc_slot
Tc_slot
Tc_slot



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