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SS6782G Datasheet(PDF) 16 Page - Silicon Standard Corp.

Part # SS6782G
Description  Charge Controller for Dual Batteries
PDF  19 Pages
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Manufacturer  SSC [Silicon Standard Corp.]
Direct Link  http://www.siliconstandard.com
Logo SSC - Silicon Standard Corp.

SS6782G Datasheet(HTML) 16 Page - Silicon Standard Corp.

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SS6782G
9/21/2005 Rev.3.01
TYPE 1
Power
On
Wait Charge Full Abnormal
LEA1/
LEB1
1HZ
ON
ON
OFF
OFF
LEA2/
LEB2
OFF
ON
OFF
ON
OFF
TYPE 2
Power
On
Wait Charge Full Abnormal
LEA1/
LEB1
1HZ
1HZ
ON
OFF
4HZ
LEA2/
LEB2
1HZ
1HZ
4HZ
ON
OFF
Charging Current Control
As shown in the typical application circuit, the
SS6
782G offers two open-drain output pins,
ICOA and ICOB pins, to control the charging cur-
rent of battery pack A and pack B. When fast
charging is completed, the SS6782G enters the
trickle charge mode. In trickle charge mode, the
ICOA or ICOB output pins switch with predeter-
mined duty cycle. Refering to the table of trickle
charge mode (TABLE 6), the duty cycle is deter-
mined by the setting of SEL1 and SEL2 pins. The
following table summarizes how ICOA and ICOB
pins correspond to various charging states.
Power
ON
Wait
ON
Fast
Charging
Charge
Completed
Fault
Conditions
ICOA/
ICOB
ON
ON
OFF
See pin 14
& 15
ON
Test Mode
Fig. 17 shows the timing diagram for externally
controlled ADJ, ABV, BBV, ATS, BTS, SEL1 and
SEL2 pin voltages in a recommended SS6782G
test scheme, utilizing TEST mode function. Out-
put waveforms of LEA1, LEA2, LEB1, LEB2,
ICOA and ICOB from a properly functioning
SS6
782G are also shown in the figure. For de-
tailed information please consult with SSC staff
directly.



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