AAT3689 데이터 시트보기 (PDF) - Advanced Analogic Technologies
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AAT3689 Datasheet PDF : 20 Pages
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AAT3689
0.5A/1.0A USB Port/Adapter
Lithium-Ion/Polymer Battery Charger
Pin Descriptions
Pin #
1, 10
2
3
4
5
6
7
8
9
Name
USB
BAT
ADP
GND
EN
TS
STAT2
STAT1
CT
Type
In
In/Out
In
Ground
In
In/Out
Out
Out
In/Out
11
USBSET
In/Out
12
ADPSET
In/Out
EP
Function
USB power supply input.
Battery charging and sensing.
Adapter power supply input.
Ground connection.
Enable pin. Logic high enables the IC.
Connect to 10kΩ NTC thermistor.
Battery charge status indicator pin to drive an LED: active low, open-drain.
Battery charge status indicator pin to drive an LED: active low, open-drain.
Timing capacitor to adjust internal watchdog timer. Set maximum charge
time for adapter powered trickle, CC, and CV charge modes. The watchdog
timer only sets the timers for adapter battery charging; there is no timeout
for the battery charging from the USB input. If timing function is not need-
ed, terminate this pin to ground.
Connect a resistor between this pin and GND to set the USB charging
current.
Connect a resistor between this pin and GND to set the adapter charging
current.
Exposed paddle (bottom); connect to GND directly beneath package.
Pin Configuration
TDFN33-12
(Top View)
USB 1
BAT 2
ADP 3
GND 4
EN 5
TS 6
12 ADPSET
11 USBSET
10 USB
9 CT
8 STAT1
7 STAT2
2
3689.2006.11.1.0
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