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PDF AAT3690 Data sheet ( Hoja de datos )
| Número de pieza | AAT3690 | |
| Descripción | 1.0A USB Port/Adapter Lithium-Ion/Polymer Battery Charger | |
| Fabricantes | AAT | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AAT3690 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
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AAT3690
1.0A USB Port/Adapter
Lithium-Ion/Polymer Battery Charger
General Description
BatteryManager™
Features
The AAT3690 BatteryManager is a highly integrat-
• USB/AC Adapter System Power Charger
ed single-cell lithium-ion/polymer battery charger
— USB: Programmable up to 1.0A
IC designed to operate with USB port and AC
adapter inputs. It requires the minimum number of
external components.
The AAT3690 precisely regulates battery charge
voltage and current for 4.2V lithium-ion/polymer
battery cells. Adapter charge current rates can be
— Adapter: Programmable up to 1.0A
• 4.0V to 5.5V Input Voltage Range
• Adapter Presence Automatically Disables
USB Charging
• High Level of Integration With Internal:
— Charging Devices
— Reverse Blocking Diodes
programmed up to 1.0A. In the absence of an
— Current Sensing
adapter and with a USB port connected, the bat-
• Automatic Recharge Sequencing
tery can also be charged by USB power. The USB
• Digital Thermal Regulation in ADP Charge
charge current can be programmed up to 1A. A
• Charge Reduction Loop in USB Charge
Charge Reduction Loop is also built in to allow
• Battery Temperature Monitoring
users to charge the battery with the available cur-
rent from a USB port, while keeping the port volt-
age regulated. USB charging is disabled when an
adapter is present.
Battery temperature and charge state are fully
monitored for fault conditions. In the event of an
• Full Battery Charge Auto Turn-Off
• Over-Current Protection
• Over-Voltage Protection
• Emergency Thermal Protection
• Power On Reset and Soft Start
• Serial Interface Status Reporting
• 12-Pin 3x3mm TDFN Package
over-voltage or over-temperature condition, the
device will automatically shut down, thus protecting
the
charging
device,
control
system,
and
the
Applicationswww.DataSheet4U.com
bat-
tery under charge. Status monitor output pins are
provided to indicate the battery charge status by
• Cellular Telephones
directly driving two external LEDs.
• Digital Still Cameras
The AAT3690 is available in a Pb-free, thermally-
enhanced, space-saving 12-pin 3x3mm TDFN
package and is rated over the -40°C to +85°C tem-
perature range.
• Hand-Held PCs
• MP3 Players
• Personal Data Assistants (PDAs)
• Other Lithium-Ion/Polymer Battery-Powered
Devices
Typical Application
Enable
USB Input
USB
EN
BAT
BATT+
RSETUSB
USBSET
TS
AAT3690 CT
C2
10μF
BATT-
ADP Input
RSETADP
ADP
ADPSET
STAT1
GND
STAT2
CT
TEMP
Battery Pack
3690.2007.01.1.2
1
1 page  
AAT3690
1.0A USB Port/Adapter
Lithium-Ion/Polymer Battery Charger
Electrical Characteristics1
VADP = 5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Logic Control / Protection
VEN(H)
VEN(L)
TC
Input High Threshold
Input Low Threshold
Constant Current Mode Time Out
(ADP mode only)
TV
Constant Voltage Mode Time Out
(ADP mode only)
VSTAT
ISTAT
VOVP
IOCP
Output Low Voltage
STAT Pin Current Sink Capability
Over-Voltage Protection Threshold
Over-Current Protection Threshold
Charge Termination Threshold Current
ITERM/ICHG
ITS Current Source from TS Pin
TS1 TS Hot Temperature Fault
TS2 TS Cold Temperature Fault
TREG
TLOOP_IN
TLOOP_OUT
TOVSD
Thermal Loop Regulation
Thermal Loop Entering Threshold
Thermal Loop Exiting Threshold
Over-Temperature Shutdown Threshold
Conditions
CCT = 100nF, VADP = 5.5V
CCT = 100nF, VADP = 5.5V
STAT Pin Sinks 4mA
Threshold
Hysteresis
Threshold
Hysteresis
Min Typ Max Units
1.6
0.4
3.0
V
V
Hour
3.0 Hour
0.4 V
8.0 mA
4.4 V
105
%ICH_CC
7.5 %
70 80 90
310 330 350
15
2.2 2.3 2.4
10
90
110
85
145
μA
mV
V
mV
°C
°C
°C
°C
1. The AAT3690 output charge voltage is specified over the 0° to 70°C ambient temperature range; operation over the -40°C to +85°C
temperature range is guaranteed by design.
3690.2007.01.1.2
5
5 Page 
System Operation Flow Chart
AAT3690
1.0A USB Port/Adapter
Lithium-Ion/Polymer Battery Charger
PoPwoewreOr nOn
ReRseestet
ADP
Loop
ADP
Power Select
USB
Yes UVLO Yes
VP > VUVLO
No
Enable
Switch
On
No
SlSeelepep
MModoede
USB Loop
Thermal
Loop Enable
No
Timing
Fault
Conditions Monitor
OV, OT
Yes
No
Yes
Shutdown
Mode
Battery
Temp. Monitor
VTS1 < TS < VTS2
No Battery
Temp. Fault
Expire
Charge
Safety
Timer
Device Temp. Monitor
TJ > 110°C
Yes
Thermal Loop
Current
Reduction in ADP
Charging Mode
Set
No
Yes
Recharge Test
Yes
Current Phase Test
Current
Charging
VRCH > VBAT
VEOC > VBAT
Mode
No
Voltage Phase Test Yes
IBAT > ITERM
Voltage
Charging
Mode
No
Charge
Completed
USB Voltage
Regulation
Enable
USUBSBLoLoopop
CuCrurerrnetnt
RCeRhdCaeuhrdcgatuiironcgngtiinoiMgnnoMUindoSeUdBeSB
Yes No
USB Voltage Test
VUSB < 4.5V
3690.2007.01.1.2
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet AAT3690.PDF ] | |
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