AAT3686 Datasheet, PDF (18/24 Pages) Advanced Analogic Technologies – USB Port/AC Adapter Lithium-Ion/Polymer Battery Charger

AAT3686
USB Port/AC Adapter
Lithium-Ion/Polymer Battery Charger
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
DATA Report Status
Chip Over-Temperature Shutdown
Battery Temperature Fault
Over-Voltage Turn Off
Not Used
ADP Watchdog Time-Out in Battery Condition Mode
ADP Battery Condition Mode
ADP Watchdog Time-Out in Constant Current Mode
ADP Thermal Loop Regulation in Constant Current Mode
ADP Constant Current Mode
ADP Watchdog Time-Out in Constant Voltage Mode
ADP Constant Voltage Mode
ADP End of Charging
USBH Battery Condition Mode
USBH Charge Reduction in Constant Current Mode
USBH Constant Current Mode
USBH Constant Voltage Mode
USBH End of Charging
USBL Battery Condition Mode
USBL Charge End of Charging Reduction in Constant Current Mode
USBL Constant Current Mode
USBL Constant Voltage Mode
USBL End of Charging
Data Report Error
Table 4: Serial Data Report Table.
1.8V to 5.0V
IN
AAT3686
Status
Control
OUT
DATA Pin
R_{P UL L _ UP}
GPIO
IN
OUT
μP GPIO
Port
Figure 4: Data Pin Application Circuit.
Data Timing
The system microcontroller should assert an active
low data request pulse for minimum duration of
200ns; this is specified by the SQ_PULSE. Upon sens-
ing the rising edge of the end of the data request
pulse, the AAT3686 status data control will reply the
data word back to the system microcontroller after a
delay defined by the data report time specification
T_DATA(RPT). The period of the following group of data
pulses will be defined by the T_DATA specification.
18
3686.2006.10.1.9