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AAT3682 데이터시트 PDF




Skyworks에서 제조한 전자 부품 AAT3682은 전자 산업 및 응용 분야에서
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부품번호 AAT3682 기능
기능 Li-Ion/Polymer Linear Battery Charger
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AAT3682 데이터시트, 핀배열, 회로
General Description
The AAT3682 is a lithium-ion/polymer linear battery
charger. It is designed for compact portable applications
with a single-cell battery. The AAT3682 precisely regu-
lates battery charge voltage and charge current, and
offers an integrated pass device, minimizing the number
of external components required.
The AAT3682 charges the battery in three different
phases: preconditioning, constant current, and constant
voltage. In preconditioning mode, the charge current has
two different levels and is controlled by one external pin.
Battery charge temperature and charge state are care-
fully monitored for fault conditions. A battery charge
stable monitor output pin is provided to indicate the bat-
tery charge status through a display LED or interface to
a system controller. The AAT3682 has a sleep mode
option for when the input supply is removed. In this
mode, it draws only 2.0μA of typical current.
The AAT3682 is available in a Pb-free, 16-pin QFN44
package and is specified over the -20°C to +70°C tem-
perature range.
DATA SHEET
AAT3682
Li-Ion/Polymer Linear Battery Charger
Features
• VIN Range: 4.7V to 6.0V
• Low Quiescent Current, Typically 0.5mA
• 1% Accurate Preset Voltage
• Up to 1A of Charging Current
• Integrated Pass Device
• Battery Temperature Monitoring
• Fast Trickle Charge Option
• Deep Discharge Cell Conditioning
• LED Charge Status Output or System Microcontroller
Serial Interface
• Power-On Reset
• Lower Power Sleep Mode
• Status Outputs for LED or System Interface Indicates
Charge and Fault Conditions
• Temperature Range: -20°C to +70°C
• 16-Pin QFN44 Package
Applications
• Cellular Telephones
• Digital Still Cameras
• Hand-Held PCs
• MP3 Players
• Personal Data Assistants (PDAs)
Typical Application
Adapter
RSENSE
CIN = 10μF
VP
R3
Gate
R4
DRV
BAT
T2X
BSENSE
CSI TS
VCC
STAT
VSS
VP
RT1
BATT+
COUT= 1μF
BATT-
LED 1
R2 = 1K
RT2
TEMP
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201884B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 25, 2012
1




AAT3682 pdf, 반도체, 판매, 대치품
DATA SHEET
AAT3682
Li-Ion/Polymer Linear Battery Charger
Electrical Characteristics1
VIN = 5.0V, TA = -20°C to +70°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol
VIN
ICC
ISLEEP
ISTAT(HI)
VSTAT(LOW)
VCH
VCS
ICH
VMIN
VTRICKLE
T2X
VTS1
VTS2
VTERM
VRCH
VUVLO
VOVP
VOCP
Description
Operation Input Voltage
Operating Current
Sleep Mode Current
STAT High Level Output Leakage Current
STAT Low Level Sink Current
Output Charge Voltage Regulation
Charge Current Regulation
Charge Current2
Preconditioning Voltage Threshold
Trickle Charge Current Regulation
Trickle Charge Current Gain
Low Temperature Threshold
High Temperature Threshold
Charge Termination Threshold Voltage
Battery Recharge Voltage Threshold
Under-Voltage Lockout
Over-Voltage Protection Threshold
Over-Current Protection Threshold
Conditions
VIN = 5.5V, VCH = 4.2
VIN = 3.5V, VCH = 4.2
VIN = 5.5V
VIN = 5.5V, ISINK = 5mA
VBAT = 4.2V
TA = 25°C
See Note 1
VIN = 5.5V, VCH = 4.2
VIN = 5.5V
VCH = 4.2V
T2X Floating; VCH = 4.2V
T2X = VSS
VCH = 4.2V
VIN Rising, TA = 25°C
Min
4.7
-1.0
4.175
4.158
90
3.04
29.1
58.2
4
4.018
3.5
Typ
0.5
3.0
0.3
4.20
4.20
100
3.1
10
1.8
30
60
12
4.1
4.0
4.4
200
Max
6.0
3.0
6.0
+1.0
0.6
4.225
4.242
110
1.0
3.16
30.9
61.8
24
4.182
4.5
Units
V
mA
μA
μA
V
V
mV
A
V
mV
%VCC
%VCC
mV
V
V
V
%VCS
1. The AAT3682 output charge voltage is specified over the 0°C to 55°C ambient temperature range; operation over -20°C to 70°C is guaranteed by design.
2. 1A of charging current is only for dynamic applications and not DC. In addition, the ambient temperature must be at or below 50°C.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
4 201884B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 25, 2012

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AAT3682 전자부품, 판매, 대치품
Typical Characteristics
Charging Current vs. Battery Voltage
(RSENSE = 0.2Ω with External Schottky)
600
500
400
300 VIN = 4.5V
VIN = 5.5V
200
100 VIN = 4.75V
0
2.5 3.0 3.5 4.0 4.5 5.0
Battery Voltage (V)
Safe Operating Area
(TJ(MAX) = 150°C)
6.2
6.0
5.8 TAMB = 85°C
5.6
TAMB = 70°C
5.4
TAMB = <50°C
5.2
Schottky VF = 0.2V
5.0
0
0.2 0.4
0.6
Charging Current (A)
0.8
DATA SHEET
AAT3682
Li-Ion/Polymer Linear Battery Charger
Safe Operating Area
(TJ(MAX) = 120°C)
7.0
6.0
5.0
TAMB = 85°C
4.0 TAMB = 70°C
3.0
TAMB = 50°C
TAMB = 40°C
2.0
1.0
Schottky VF = 0.2V
0.0
0.0 0.2
0.4
0.6
Charging Current (A)
0.8
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201884B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 25, 2012
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