|
|
PDF AAT3691 Data sheet ( Hoja de datos )
| Número de pieza | AAT3691 | |
| Descripción | Dual Input 1.6A Linear Charger | |
| Fabricantes | Skyworks | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AAT3691 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
|
No Preview Available !
DATA SHEET
AAT3691
Dual Input 1.6A Linear Charger with 28V OVP in a 3x4 TDFN Package
General Description
The AAT3691 BatteryManager™ is an integrated single
cell Lithium-Ion (Li-Ion) battery charger IC, designed to
operate from USB ports, AC adapter inputs, or from a
cellular phone charger adapter up to an input voltage of
typical 6.75V. For increased safety, The AAT3691 also
includes over-voltage input protection (OVP) up to 28V.
The AAT3691 precisely regulates battery charge voltage
and current for 4.2V Li-Ion battery cells. The charge
current can be programmed up to 1.6A for ADP charging
and 0.5A for USB charging by external resistors on the
ADPSET/USBSET pins. In the case of an over-voltage
condition of ADP or USB input power exceeding typical
6.75V, the internal series switch opens, blocking the
damage to the battery and charging circuitry.
The AAT3691 also includes a no-battery present input
(NOBAT). When the NOBAT indicates that no battery is
present, OVP block will prevent the input power from
passing through the OVP block and suspend the charging
function.
Battery charging status is continuously monitored for
fault conditions. In the event of a battery over voltage or
chip over thermal failure, the charger will automatically
shutdown, protecting the charging device, control system
and battery, until the fault condition is removed. The
open drain status monitor output pin (STAT) is adopted
to report battery charging activity by active low.
The AAT3691 comes in a thermally enhanced, space-
saving, Pb-free 16-pin 3x4 mm TDFN package and is
specified for operation over the -40°C to +85°C tempera-
ture range.
Features
• Dual Input USB and AC Adapter Input
▪ Programmable Constant Current from 100mA to
1.6A for ADP Charge
▪ Programmable Constant Current from 50mA to 0.5A
for USB Charge
• No Battery Present Input Detection
• 3.0V ~ 6.75V (typical) Input Voltage Range
• Over-Voltage Input Protection up to 28V
• High Level of Integration with Internal:
▪ Power Device
▪ Reverse Current Blocking
▪ Current Sensing
• Automatic Recharge Sequencing
• Fast Over-Voltage Protection Turn Off and Release
Turn On Time
• Full Battery Charge Auto Turn Off/Sleep Mode/Charge
Termination
• Charge Status Indicator
• Automatic Charge Reduction
• Automatic Trickle Charge for Battery Preconditioning
• Thermal Shutdown Protection
• Active Digital Thermal Loop Control
• Power On Reset and Soft Start
• Active Low Enable with Internal 200kΩ Resistor Pull-
Down to GND
• 3x4mm TDFN Package
Applications
• Digital Still Cameras
• Mobile Phones
• Personal Data Assistants (PDAs)
• Other Li-Ion Battery Powered Devices
Typical Application
USBIN
1μF
2.2μF
Voltage
Source
ADPIN
1μF
R
2.2μF
USB
BAT
USBCH
IC
AAT3691
NOBAT
STAT
EN
ADP
USBSET
ADPCH ADPSET
GND
10μF
Battery
BATT+ Pack
BATT-
NOBAT
ON/OFF
RADPSET
RUSBSET
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201894B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 27, 2012
1
1 page  
DATA SHEET
AAT3691
Dual Input 1.6A Linear Charger with 28V OVP in a 3x4 TDFN Package
Electrical Characteristics (continued)1
VADP = VUSB = 5V, TA = -25°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Logic Control / Battery Protection
VEN#(H)
VEN#(L)
VSTAT
ISTAT
VNOBAT(H)
VNOBAT(L)
VBOVP
Input High Threshold
Input Low Threshold
Output Low Voltage
STAT Pin Current Sink Capability
No Battery Present Input High Threshold
No Battery Present Input Low Threshold
Battery Over-Voltage Protection Threshold
TRESPOV Over-Voltage Response Time
TOVPON OVP Switch OVP Release Turn-On Delay Time
TOVPSTARTON
TOVPR
TSHDN
OVP Switch Start Up Turn-On Delay Time
OVP Switch Turn-On Rise Time
Chip Thermal Shutdown Temperature
Conditions
Min Typ Max Units
VADP = 5V
1.2
0.4
STAT pin sinks 4mA
0.4
48
1.2
0.4
4.4
VADP, VUSB voltage step up signal from 6V
to 8V
0.5 1.0
VADP voltage step down signal from 8V to
6V, RLOAD = 10, CADPCH = 1μF
VADP voltage step up signal from 0V to
5V, RLOAD = 10, CADPCH = 1μF
RLOAD = 10, CADPCH = 1μF
Thermal Shutdown Threshold
5
130
100
140
Hysteresis
15
V
V
V
mA
V
V
V
μs
μs
μs
μs
°C
1. The AAT3691 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and are assured by design, characterization and correla-
tion with statistical process controls.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201894B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 27, 2012
5
5 Page 
DATA SHEET
AAT3691
Dual Input 1.6A Linear Charger with 28V OVP in a 3x4 TDFN Package
System Operation Flowchart
Power On Reset
OVP Switch Off
Yes NOBAT Indicates No
Battery
No
Enable
No
Adapter Charge
USBCH =
ADPCH = 0V
Yes
OVP (6.75V) ≥
No VUSB or VADP ≥
VUVLO_ADP or VUVLO_USB
(3V)
Yes
USBCH = USB,
ADPCH = ADP
No
Recharge Test
VRCH > VBAT
Preconditioning
Test
VMIN > VBAT
Yes Preconditioning
(Trickle Charge)
No
Yes
Current Phase Test
Yes
Constant
Current Charge
VIN > VBAT_EOC
Mode
No
VADPCH > VUVLO_ADPCH
(3.5V)
Yes
No
No VUSBCH > VUVLO_USBCH
(3.5V)
Voltage Phase Test
IBAT > ITERM
Yes
Constant
Voltage Charge
Mode
No
Charge Completed
USB Charge
No
Yes
Preconditioning
Test
VMIN > VBAT
Yes Preconditioning
(Trickle Charge)
No
Recharge Test
VRCH > VBAT
Yes
Current Phase Test
Yes
Constant
Current Charge
VIN > VBAT_EOC
Mode
No
Auto Charge
Reduction
Loop
Control
Yes
VUSBCH < 4.5V
No
Voltage Phase Test
IBAT > ITERM
Yes
Constant
Voltage Charge
Mode
No
Charge Completed
Thermal Loop
Current
Reduction in
C.C. Mode
Yes
Device Thermal
Loop Monitor
TJ > 115°C
No
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201894B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 27, 2012
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet AAT3691.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AAT3690 | 1.0A USB Port/Adapter Lithium-Ion/Polymer Battery Charger |  AAT |
| AAT3691 | Dual Input 1.6A Linear Charger | Skyworks |
| AAT3692 | Dual Input 1.6A Linear Charger | Skyworks |
| AAT3696 | 1.6A Li-Ion Battery Charger | Skyworks |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |