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XC6802A42XMR-G 参数 Datasheet PDF下载

XC6802A42XMR-G图片预览
型号: XC6802A42XMR-G
PDF下载: 下载PDF文件 查看货源
内容描述: 1节锂离子电池线性充电器IC,具有恒定电流/恒定电压 [1 Cell Li-ion Battery Linear Charger IC with Constant-Current/Constant-Voltage]
分类和应用: 电池
文件页数/大小: 18 页 / 351 K
品牌: TOREX [ TOREX SEMICONDUCTOR ]
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XC6802
Series
1 Cell Li-ion Battery Linear Charger IC
with Constant-Current/Constant-Voltage
ETR2501-005b
■GENERAL
DESCRIPTION
The XC6802 series is a constant-current/constant-voltage linear charger IC for single cell lithium-ion batteries. The XC6802
includes a reference voltage source, battery voltage monitor, driver transistor, constant-current/constant-voltage charge circuit,
over heat protection circuit, phase compensation circuit. The battery charge termination voltage is internally set to 4.2V
±
0.7% and the trickle charge voltage and accuracy is 2.9V
±3%.
In trickle charge mode, a safe charge to a battery is possible
because approximately 1/10 out of setting charge current is supplied to the battery. With an external R
SEN
resistor, the charge
current can be set freely up to 800mA (MAX.), therefore, the series is ideal for various battery charge applications. The series’
charge status output pin, /CHG pin, is capable of checking the IC’s charging state while connecting with an external LED.
■APPLICATIONS
Charging docks, charging cradles
MP3 players, portable audio players
Cellular phones, PDAs
Bluetooth headsets
FEATURES
Operating Voltage Range
Charge Current
: 4.25V ~ 6.0V
: Externally set up to 800mA
(MAX.)
Charge Termination Voltage : 4.2V
±0.7%
Trickle Charge Voltage
Supply Current (Stand-by)
Packages
with thermal shutdown
Automatic recharge
Charge status output pin
Soft-start function (Inrush limit current)
: 2.9V
±3%
: 15μA (TYP.)
: SOT-89-5, SOT-25, USP-6C
Constant-current/constant-voltage operation
■TYPICAL
APPLICATION CIRCUIT
■TYPICAL
PERFORMANCE
CHARACTERISTICS
●Battery
Charge Cycle
Li-ion
Bat t e r C h ar ge C yc le
Li- io n
Battery
y
Charge Cycle
VIN=5.0V, CIN=1μF
VIN=5.0V, CIN=1uF
RSEN=2kΩ, 830mAh Battery
RSEN=2kohm, 830mAh Battery
Battery Voltage
Battery Voltage
600
4.20
700
4.40
Charge Current I
BAT
(mA)
Charge Current : I
BAT
(mA)
400
3.80
300
3.60
200
Charge Current
Charge Current
3.40
100
3.20
0
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
3.00
2.00
Time (hours)
Time (hour)
1/18
Battery Voltage : V
BAT
(V)
500
4.00
Battery Voltage V
BAT
(V)