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PDF AAT3696 Data sheet ( Hoja de datos )
| Número de pieza | AAT3696 | |
| Descripción | 1.6A Li-Ion Battery Charger | |
| Fabricantes | Skyworks | |
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DATA SHEET
AAT3696
1.6A Li-Ion Battery Charger in a 3x3 TDFN Package
General Description
The AAT3696 BatteryManager™ is a single-cell lithium-
ion (Li-Ion)/Li-Polymer battery charger IC designed to
operate from USB ports or AC adapter up to an input
voltage of 6.5V or 6.05V (depending on the option1). For
increased safety, the AAT3696 also includes over-voltage
input protection (OVP) up to 28V.
The AAT3696 precisely regulates battery voltage after it
has reached 4.2V or 4.375V (depending on the option1)
Li-Ion/Polymer battery cells through an extremely low
RDS(ON) switch. The charging current can be set by an
external resistor up to 1.6A. In case an over-voltage
condition occurs from the input, a series switch quickly
opens and a fault flag is activated to prevent damage to
the battery and charging circuitry.
Other fault conditions are monitored in real time. In case
of an over-current, battery over-voltage, short circuit, or
over-temperature failure, the device will automatically
shut down, thus protecting the charging device, control
system, and the battery under charge. A status monitor-
ing output pin (STAT) is provided to indicate charging
activity. This open-drain output pin can be used to drive
an external LED as a charging indicator. The AAT3696
has two charge termination mode selections when the
battery voltage has reached the constant voltage level
VCO(REG) and the charging current has decreased the ter-
mination current level.
The AAT3696 offers a 4.9V/30mA LDO linear regulator.
This regulator is enabled all the time regardless of the
status of the charger and protected by the OVP switch.
The AAT3696 is available in the Pb-free, thermally
enhanced, space-saving 3x3mm TDFN33-12 package and
is rated over the -40°C to +85°C temperature range.
Features
• USB or AC Adapter System Power Charger
• 3.0V ~ 6.5V or 6.05V Input Voltage Range
• 2.8V Typical Under-Voltage Lockout Threshold
• Fast Over-Voltage Protection Turn Off
• Two OVP Turn-On Delay Time Options:
▪ 40μs
▪ 80ms
• Two OVP Trip Point Options:
▪ Protection Trip at 6.75V
▪ Protection Trip at 6.25V
• High Level of Integration with Internal:
▪ Power Device
▪ Reverse Current Blocking
▪ Current Sensing
• 4.9V/30mA LDO Output Through Over-Voltage
Protection Device
• Programmable Current from 100mA to 1.6A Max
• Charge Status Indicator
• Automatic Recharge Sequencing
• Automatic Trickle Charge For Battery Pre-Conditioning
• Emergency Thermal Shutdown Protection
• Power on Reset and Soft Start
• Active Low Enable with Internal 200kΩ Pull-Down
Resistor
• Two Charge Termination Control Selections:
▪ Manual: Continuous Battery Charging Until Charge
Termination by Enable Pin
▪ Automatic: Battery Charging is Terminated with
Transition to Sleep State
• 12-pin 3x3mm TDFN Package
Applications
• Bluetooth™ Headsets, Headphones, Accessories
• Digital Still Cameras
• Mobile Telephones
• MP3 Players
• Personal Data Assistants (PDAs)
1. Please refer to Table 9 on page 19 for complete list of options.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201897B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 27, 2012
1
1 page  
DATA SHEET
AAT3696
1.6A Li-Ion Battery Charger in a 3x3 TDFN Package
Electrical Characteristics1
VIN = 5V, TA = -40 to +85°C, RISET = 3.16kΩ, VMODE = 0V, BAT = BATS, unless otherwise noted. Typical values are at TA
= 25°C
Symbol Description
Logic Control / Battery Protection
VEN(H), VMODE(H)
VEN(L), VMODE(L)
VSTAT
ISTAT
VOVPFLG
IOVPFLG
TDLY_OVPFLG
Input High Threshold
Input Low Threshold
Output Low Voltage
STAT Pin Current Sink Capability
Output Low Voltage
OVPFLG Pin Current Sink Capability
OVPFLG Assertion Delay Time from Over-
Voltage
TRESPOV
TOVPR
Over-Voltage Protection Response Time
OVP Switch Turn-On Rise Time
TSHDN
Chip Thermal Shutdown Temperature
Options -1, -3, -5, -7, -9, -11, -13, -15
TRELDLY_OVPFLG_40μs OVPFLG Release Delay Time
TOVPON_40μs
OVP Switch OVP Release Delay Time
TOVPSTARTON_40μs OVP Switch Start Up Delay Time
Options -2, -4, -6, -8 , -10, -12, -14, -16
TRELDLY_OVPFLG_80ms OVPFLG Release Delay Time
TOVPON_80ms
OVP Switch OVP Release Delay Time
TOVPSTARTON_80ms OVP Switch Start Up Delay Time
Low Dropout Regulator (LDO)
VOUT
LDO Output Voltage Tolerance
VDO LDO Dropout Voltage
ILIM LDO Current Limit
VOUT/VOUT*VIN LDO Line Regulation
VOUT(Line)
LDO Dynamic Line Regulation
VOUT(Load)
LDO Dynamic Load Regulation
Conditions
Min Typ Max Units
VIN = 5V
STAT pin sinks 4mA
OVPFLG pin sinks 4mA
From assertion of over-voltage
condition (OV)
VIN voltage step up from 6V to 8V,
RLOAD = 100Ω, CINCHR = 1μF
RLOAD = 100Ω, CINCHR = 1μF
Threshold
Hysteresis
1.2
0.4
0.4
8
0.4
8
1
0.5
100
140
15
V
V
V
mA
V
mA
μs
μs
μs
ºC
From release of over-voltage
condition (OV)
VIN voltage step down from 8V to
6V, RLOAD = 100Ω, CINCHR = 1μF
VIN voltage step up from 0V to 5V,
RLOAD = 100Ω, CINCHR = 1μF
1.5
40
150 250
μs
μs
μs
From release of over-voltage
condition (OV)
VIN voltage step down from 8V to
6V, RLOAD = 100Ω, CINCHR = 1μF
VIN voltage step up from 0V to 5V,
RLOAD = 100Ω, CINCHR = 1μF
80
80
80
ms
ms
ms
ILDOOUT = 1mA to
30mA, VIN = 5.1V
TA = 25°C
TA = -40°C
to 85°C
VIN = 5V, ILDOOUT = 50mA
ILDOOUT = 30mA, VIN =4.9V
VOUT = 0V
VIN = 5V to 6V or 5.4V to 6.4V,
ILDOOUT = 10mA
ILDOOUT = 30mA, VIN = 5V to 6V or
5.4V to 6.4V, TR/TF = 2μs
ILDOOUT = 1mA to 30mA, TR <5μs;
VIN = VOUT(NOM) +1V
4.802 4.9 4.998
4.729 4.9 5.071
4.4
200 300
75
0.09
25
60
V
mV
mA
%/V
mV
mV
1. The AAT3696 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is 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
201897B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 27, 2012
5
5 Page 
Typical Characteristics−LDO
LDO Load Transient
(VIN = 5.4V; ILDOOUT = 1mA to 30mA; COUT = 1μF)
60
40
20
0
100
50
0
-50
-100
Time (100μs/div)
DATA SHEET
AAT3696
1.6A Li-Ion Battery Charger in a 3x3 TDFN Package
LDO Load Transient
(VIN = 5.4V; ILDOOUT = 10mA to 30mA; CLDOOUT = 1μF)
60
40
20
0
100
50
0
-50
-100
Time (100μs/div)
LDO Line Transient
(VIN = 5.4V to 6.4V; ILDOOUT = 30mA; CLDOOUT = 1μF)
8
7
6
5 5.1
45
4.9
4.8
4.7
4.6
Time (100μs/div)
LDO Dropout Voltage vs. Output Current
300
250
200
150
100
50
0
0
85°C
25°C
-40°C
5 10 15 20 25
Output Current (mA)
30
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201897B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 27, 2012
11
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet AAT3696.PDF ] | |
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