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| 型号： | MCP73113-16SI/MF |
| 厂商： | Microchip Technology |
| 文件页数： | 17/34页 |
| 文件大小： | 0K |
| 描述： | IC LI-ION/LI-POLY CTRLR 10-DFN |
| 标准包装： | 120 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 4 V ~ 16 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN-EP（3x3） |
| 包装： | 管件 |
| 产品目录页面： | 669 (CN2011-ZH PDF) |
| 配用： | MCP73113EV-1SOVP-ND - BOARD EVAL BATT CHARGER MCP73113 |
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MCP73113/4
5.0
DETAILED DESCRIPTION
5.3.2
BATTERY CHARGE CONTROL
OUTPUT (V BAT )
5.1
Undervoltage Lockout (UVLO)
The battery charge control output is the drain terminal
An internal undervoltage lockout (UVLO) circuit
monitors the input voltage and keeps the charger in
shutdown mode until the input supply rises above the
UVLO threshold. In the event a battery is present when
the input power is applied, the input supply must rise
approximately 150 mV above the battery voltage
of an internal P-channel MOSFET. The MCP73113/4
devices provide constant current and voltage
regulation to the battery pack by controlling this
MOSFET in the linear region. The battery charge
control output should be connected to the positive
terminal of the battery pack.
before the MCP73113/4 device becomes operational.
5.3.3
BATTERY DETECTION
The UVLO circuit places the device in shutdown mode
if the input supply falls to approximately 150 mV above
the battery voltage.The UVLO circuit is always active.
At any time, the input supply is below the UVLO
threshold or approximately 150 mV of the voltage at the
V BAT pin, the MCP73113/4 device is placed in a
shutdown mode.
The MCP73113/4 detects the battery presence with
charging of the output capacitor. The charge flow will
initiate when the voltage on V BAT is pulled below the
V RECHARGE threshold. Refer to Section 1.0 “Electrical
Characteristics” for V RECHARGE values. The value will
be the same for non-rechargeable device.
When V BAT > V REG + Hysteresis, the charge will be
5.2
Overvoltage Protection (OVP)
suspended or not started, depends on the condition to
prevent over charge that may occur.
An internal overvoltage protection (OVP) circuit
monitors the input voltage and keeps the charger in
5.4
Preconditioning
shutdown mode when the input supply rises above the
OVP threshold. The hysteresis of OVP is
approximately 150 mV for the MCP73113/4 device.
The MCP73113/4 device is operational between UVLO
and OVP threshold. The OVP circuit is also recognized
as overvoltage lock out (OVLO).
If the voltage at the V BAT pin is less than the
preconditioning threshold, the MCP73113/4 device
enters a preconditioning mode. The preconditioning
threshold is factory set. Refer to Section 1.0
“Electrical Characteristics” for preconditioning
threshold options.
5.3
Charge Qualification
In this mode, the MCP73113/4 device supplies 10% of
the fast charge current (established with the value of
When the input power is applied, the input supply must
rise 150 mV above the battery voltage before the
MCP73113/4 becomes operational.
The automatic power down circuit places the device in
a shutdown mode if the input supply falls to within
the resistor connected to the PROG pin) to the battery.
When the voltage at the V BAT pin rises above the
pre-conditioning threshold, the MCP73113/4 device
enters the constant current (fast charge) mode.
+50 mV of the battery voltage.
Note:
The MCP73113/4 also offer options with
The automatic circuit is always active. At any time the
input supply is within +50 mV of the voltage at the
V BAT pin, the MCP73113/4 is placed in a shutdown
mode.
For a charge cycle to begin, the automatic power
down conditions must be met and the charge enable
input must be above the input high threshold.
no preconditioning.
5.4.1 TIMER EXPIRED DURING
PRECONDITIONING MODE
If the internal timer expires before the voltage threshold
is reached for fast charge mode, a timer fault is
indicated and the charge cycle terminates. The
MCP73113/4 device remains in this condition until the
5.3.1
BATTERY MANAGEMENT INPUT
SUPPLY (V DD )
battery is removed or input power is cycled. If the
battery is removed, the MCP73113/4 device enters the
standby mode where it remains until a battery is
The V DD input is the input supply to the MCP73113/4.
The MCP73113/4 automatically enters a Power-down
reinserted.
mode if the voltage on the V DD input falls to within
+50 mV of the battery voltage. This feature prevents
draining the battery pack when the V DD supply is not
present.
? 2010 Microchip Technology Inc.
Note:
The typical preconditioning timer for
MCP73113/4 is 32 minutes. The
MCP73113/4 also offer options with no
preconditioning timer.
DS22183C-page 17
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP73113-1NSI/MF | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Single-Cell Li-Ion / Li-Polymer Battery Charge Management Controller with Input Overvoltage Protection |
| MCP73113EV-1SOVP | 功能描述:电源管理IC开发工具 MCP73113 OVP sngl Eval Board RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MCP73113T | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Single-Cell Li-Ion / Li-Polymer Battery Charge Management Controller with Input Overvoltage Protection |
| MCP73113T-06SI/MF | 功能描述:电池管理 Single cell OVP battery Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MCP73113T-06SI-MF | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Single-Cell Li-Ion / Li-Polymer Battery Charge Management Controller with Input Overvoltage Protection |
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