参数资料
型号: L6924U013
厂商: STMICROELECTRONICS
元件分类: 电源管理
英文描述: POWER SUPPLY SUPPORT CKT, PQCC16
封装: 3 X 3 MM, ROHS COMPLIANT, VFQFPN-16
文件页数: 5/37页
文件大小: 789K
代理商: L6924U013
L6924U
Operation description
Doc ID 14716 Rev 2
13/37
Figure 6.
Typical charge curves in linear mode
The worst case in power dissipation occurs when the device starts the fast-charge phase. In
fact, the battery voltage is at its minimum value. In this case, there is the maximum
difference between the adapter voltage and battery voltage, and the charge current is at its
maximum value.
The power dissipated is given by the following equation:
Equation 1
The higher the adapter voltage is, the higher the power dissipated is. The maximum power
dissipated depends on the thermal impedance of the device mounted on board.
End
Charge
Voltage-Regulation
Phase
Power dissipation
Pre-Charge
Phase
Fast-Charge
Phase
I
PRETH
I
CHG
V
OPRGTH
Battery Voltage
Charge Current
Adapter Voltage
V
ADP
V
PRETH
CHG
BAT
ADP
DIS
I
V
P
×
=
)
(
相关PDF资料
PDF描述
L6924U013TR POWER SUPPLY SUPPORT CKT, PQCC16
L6924U POWER SUPPLY SUPPORT CKT, QCC16
L6926D1013TR 1.65 A SWITCHING REGULATOR, 800 kHz SWITCHING FREQ-MAX, PDSO8
L6996D SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO24
L9524C-TR SPECIALTY ANALOG CIRCUIT, PDSO24
相关代理商/技术参数
参数描述
L6924U013TR 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:USB compatible battery charger system with integrated power switch for Li-Ion/Li-Polymer
L6924UTR 功能描述:电池管理 Battery Charger USB Compatible 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
L6925 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR
L6925013TR 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR
L6925D 功能描述:直流/直流开关调节器 Synchronous Step-Dwn RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5