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参数资料
| 型号： | L6924U |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 电源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, QCC16 |
| 封装： | 3 X 3 MM, ROHS COMPLIANT, VFQFP-16 |
| 文件页数： | 35/38页 |
| 文件大小： | 598K |
| 代理商： | L6924U |
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Pin description
L6924U
6/38
Pin
I/O
Name
Pin description
9
I
ISEL
Switch from high power USB (IUSB up to 500 mA) and low power
USB (IUSB/5) in USB mode. A low level sets the L6924U in low
power mode and a high level sets the L6924U in high power mode.
When the AC mode is selected, the ISEL pin must be connected to
ground or left floating.
10
I
VOSNS
Output voltage sense pin.
It senses the battery voltage to control the voltage regulation loop.
11
O
VOUT
Output pin. (connected to the battery)
12
O
VREF
External reference voltage pin. (reference voltage is 1.8 V ± 2 %)
13
I/O
IEND
Charge termination pin.
A resistor connected from this pin to GND fixes the charge
termination current threshold IENDTH: if ICHG < IENDTH, the charge
process ends. The voltage across the resistor is proportional to the
current delivered to the battery (gas gauge function).
14
I
MODE
Select pin between AC adapter and USB port. A high level sets the
L6924U in USB mode while a low level sets the L6924U in the AC
adapter mode. When the AC adapter input is selected, the ISEL pin
status does not affect the current set.
15
I
IUSB
Charge current program pin in USB mode: a resistor connected
from this pin to ground fixes the fast charge current value (IUSB up
to 500 mA) with an accuracy of 7 %. The USB high power/low
power mode is selected with the ISEL pin.
16
I
IAC
Charge current program pin in AC mode: a resistor connected from
this pin to GND fixes the fast charge current value (IAC up to 1 A)
with an accuracy of 7 %.
Table 2.
Pin functions (continued)
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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 |
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