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参数资料
| 型号： | LTC4063EDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/20页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHRGR LI-ION LDO 10DFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.3 V ~ 8 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 带卷 (TR) |
LTC4063
PIN FUNCTIONS
I DETECT =
? I CHG =
R PROG 100 V
R DET =
I BAT =
V PROG
BAT (Pin 1): ChargerOutputandRegulatorInput.Thispin
provides charge current to the battery and regulates the
final float voltage to 4.2V. This pin also supplies power to
the LDO regulator.
OUT (Pin 2): LDO Regulator Output. This pin should be
bypassed with a ≥2μF low ESR capacitor as close to the
pin as possible for best performance. The minimum V OUT
is 1.2V.
FB (Pin 3): Regulator Feedback Input. The voltage on this
pin is compared to the internal reference voltage (800mV)
by the error amplifier to keep the output voltage in regula-
tion. An external resistor divider between OUT and FB sets
the output voltage.
LDOEN (Pin 4): LDO Enable Input. A logic high on the
LDOEN pin shuts down the LDO. In this state, OUT becomes
high impedance and the battery drain current drops to
less than 5μA. A logic low on the LDOEN pin enables the
LDO regulator. A 2M pull-down resistor defaults the LDO
to its enabled state.
CHGEN (Pin 5): Charger Enable Input. A logic high on the
CHGEN pin places the charger into shutdown mode, where
the I CC quiescent current is less than 65μA. A logic low on
this pin enables battery charging. A 2M pull-down resistor
to ground defaults the charger to its enabled state.
CHRG (Pin 6): Open-Drain Charge Status Output. The
charge status indicator pin has two states: pull-down
and high impedance. This output can be used as a logic
interface or an LED driver. In the pull-down state, an
NMOS transistor capable of sinking 10mA pulls down on
the CHRG pin. The state of this pin is dependent on the
value of I DETECT as well as the termination method being
used. See Applications Information.
TIMER (Pin 7): Timer Program and Termination Select Pin.
This pin selects which method is used to terminate the
charge cycle. Connecting a capacitor, C TIMER , to ground
selects Charge Time termination. The charge time is set
by the following formula:
Connecting the pin to ground selects Charge Current
termination, while connecting the pin to V CC selects User
termination. See Applications Information.
IDET (Pin 8): Current Detection Threshold Program Pin.
The current detection threshold, I DETECT , is set by con-
necting a resistor, R DET , to ground. I DETECT is set by the
following formula:
or
10 R DET R DET
100 V
I DE T ECT
The CHRG pin becomes high impedance when the charge
current drops below I DETECT . I DETECT can be set to 1/10th
the programmed charge current by connecting IDET directly
to PROG. See Applications Information.
This pin is clamped to approximately 2.4V. Driving this
pin to voltages beyond the clamp voltage can draw large
currents and should be avoided.
PROG (Pin 9): Charge Current Program and Charge Cur-
rent Monitor. The charge current is set by connecting a
resistor, R PROG , to ground. When charging in constant
current mode, this pin servos to 1V. The voltage on this
pin can be used to measure the charge current using the
following formula:
? 1000
R PROG
V CC (Pin 10): Positive Input Supply Pin. Provides power
to the battery charger. This pin should be bypassed with
a 1μF capacitor.
GND (Exposed Pad Pin 11): Ground. This pin is the back
of the Exposed Pad package and must be soldered to the
PCB copper for minimal thermal resistance.
Time ( Hours ) = 3 Hours ?
C TIMER
0 . 1 μF
or
C TIMER = 0 . 1 μF ?
Time (Hours)
3 ( Hours )
4063fc
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| LTC4064 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Monolithic Linear Charger for Back-Up Li-Ion Batteries |
| LTC4064EMSE | 功能描述:IC CHARGER BATT L-ION 4V 10-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC4064EMSE#PBF | 功能描述:IC CHARGER BATT L-ION 4V 10-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC4064EMSE#TR | 功能描述:IC CHARGER BATT L-ION 4V 10-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC4064EMSE#TRPBF | 功能描述:IC CHARGER BATT L-ION 4V 10-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
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