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AAT3691 데이터시트 PDF




Skyworks에서 제조한 전자 부품 AAT3691은 전자 산업 및 응용 분야에서
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기능 Dual Input 1.6A Linear Charger
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AAT3691 데이터시트, 핀배열, 회로
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




AAT3691 pdf, 반도체, 판매, 대치품
DATA SHEET
AAT3691
Dual Input 1.6A Linear Charger with 28V OVP in a 3x4 TDFN Package
Electrical Characteristics1
VADP = VUSB = 5V, TA = -25°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Operation
VADP_MAX,
VUSB_MAX
VADP, VUSB
Input Over-Voltage Protection Range
ADP and USB Normal Operating Input Voltage
Range
IADP_OP,
IUSB_OP
Operating Current
ISD(OFF) Shutdown Supply Current
ISTANDBY Standby Mode Current
IBAT Leakage Current from BAT Pin
Over-Voltage Protection
VOVPT
Over-Voltage Protection Trip Voltage
Hysteresis
Battery Charger
VUVLO_ADP, Under-Voltage Lockout Threshold
VUVLO_USB UVLO Hysteresis
Voltage Regulation
VBAT_EOC
VCH/VCH
VMIN
Output Charge Voltage Regulation
Output Charge Voltage Tolerance
Preconditioning Voltage Threshold
VRCH
Battery Recharge Voltage Threshold
Battery Charging Device
RDS(ON) Charging and OVP Total ON Resistance
Current Regulation
ILIM_ADP
ILIM_USB
ICH_CC
VADPSET,
VUSBSET
KIADPSET
KIUSBSET
ADP Charge Current Programmable Range
USB Charge Current Programmable Range
Constant-Current Mode Charge Current
ADPSET, USBSET Pin Voltage
Charge Current Set Factor: ICH_CC/IADPSET
Charge Current Set Factor: ICH_CC/IUSBSET
ICH_TRK Trickle Charge Current
ICH_TERM Charge Termination Threshold Current
Conditions
Min Typ Max
VADP or VUSB = 5V, Charge current =
100mA, EN = 0V
VADP or VUSB = 5V, EN = 5V
Charge Terminated
VBAT = 4V, USB and ADP open
Rising edge
3.0
6.5
0.5
8
300
1
6.75
300
28
6.5
1.5
4
7.0
Rising edge
3.0
150
4.158
2.4
4.20
0.5
2.6
VBAT_EOC
- 0.1
4.242
2.8
VADP or VUSB = 5V, TA = 25°C
600
VBAT = 3.6V
100
50
-10
Constant current mode, VBAT = 3.6V
Constant current mode, VBAT = 3.6V
RADPSET = 8k
ICH_CC 800mA
5
8
1600
500
10
2
800
800
10 15
10 12
Units
V
V
mA
μA
μA
μA
V
mV
V
mV
V
%
V
V
m
mA
mA
%
V
%
ICH_CC
%
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
4 201894B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 27, 2012

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AAT3691 전자부품, 판매, 대치품
DATA SHEET
AAT3691
Dual Input 1.6A Linear Charger with 28V OVP in a 3x4 TDFN Package
Typical Characteristics
End of Charge Voltage vs. Temperature
(RADPSET = 1kΩ; RUSBSET = 3.2kΩ)
4.22
USB
ADP
4.21
4.20
4.19
4.18
-40
-20
0 20 40
Temperature (°C)
60
80
Charge Current vs. Temperature
(VADP = VUSB = 5V; VBAT = 3.6V;
RADPSET = 1kΩ; RUSBSET = 3.2kΩ)
1800
1600
1400
1200
1000
800
600
400
200
0
-40 -20 0 20 40 60
Temperature (°C)
ADP
USB
80
Charging Current vs. Battery Voltage
(VADP = VUSB = 5V; RADPSET = 1kΩ; RUSBSET = 3.2kΩ)
1800
1600
1400
ADP
USB
1200
1000
800
600
400
200
0
2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5
VBAT (V)
USB Charging Current vs. Supply Voltage
(RUSBSET = 3.2kΩ)
600
500
400
300
200
VBAT = 3.3V
100 VBAT = 3.6V
VBAT = 3.9V
0
4.0 4.4 4.8 5.2 5.6 6.0 6.4 6.8
VUSB (V)
ADP Charging Current vs. Supply Voltage
(RADPSET = 1kΩ)
1800
1600
1400
1200
1000
800
600
400 VBAT = 3.3V
VBAT = 3.6V
200 VBAT = 3.9V
0
4.0 4.4 4.8 5.2 5.6 6.0 6.4 6.8
VADP (V)
USB Charging Current vs. Supply Voltage
(RUSBSET = 3.2kΩ)
600
500
400
300
-40°C
200 0°C
25°C
100 50°C
85°C
0
4.0 4.4 4.8 5.2 5.6 6.0 6.4 6.8
VUSB (V)
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
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