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SMB239 Datasheet(PDF) 15 Page - Summit Microelectronics, Inc.

No. de pieza SMB239
Descripción Electrónicos  Programmable Linear Battery Charger in 1.3 x 2.1 uCSP
PDF  30 Pages
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Fabricante Electrónico  SUMMIT [Summit Microelectronics, Inc.]
Página de inicio  http://www.summitmicro.com
Logo SUMMIT - Summit Microelectronics, Inc.

SMB239 Datasheet(HTML) 15 Page - Summit Microelectronics, Inc.

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SMB239
Summit Microelectronics, Inc
2129 3.0 2/23/2009
15
Figure 5 – Functional flow chart.
APPLICATIONS INFORMATION (CONTINUED)
Standby Mode
(Pause Charge)
Vin >
Vbat+130mV ?
(Always
Monitored)
NO
POR
Vbat <Vprechg?
Precharge Mode
Reset t(precharge)
Regulate Current to
I(precharge)
(<Icharge-max)
Vbat <Vprechg?
t(precharge)
expired?
YES
NO
Fast Charge Mode
Reset t(charge)
NO
NO
Battery Fault
YES
Regulate Current to
I(charge)
<(Icharge-max)
Vbat < Vfloat?
YES
NO
Regulate Voltage to
Vfloat
t(charge) expired?
YES
NO
Vbat <Vprechg?
YES
t(charge) expired?
Terminate Charge
Standby Mode
YES
Vbat < Vfloat-
115mV?
NO
YES
NO
I(charge) <
I(terrm)?
YES
NO
YES
Set I(charge-max)
YES
Terminate Charge
Standby Mode
NO
Vbat>2.0V?
NO
10mA trickle charge
(timers off)
YES
Vbatt <
Vfloat - 200mV ?
(Always
Monitored)
Optional Operation
(controlled by register)
YES
NO



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