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| 型号： | SI9731DQ-T1-E3 |
| 厂商： | Vishay Siliconix |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC CONTROLLER LIION 4.1V 16TSSOP |
| 标准包装： | 3,000 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子，镍镉，镍氢 |
| 电源电压： | 3 V ~ 12 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
Product is End of Life 3/2014
Si9731
Vishay Siliconix
μP Controlled Battery Charger
for 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries
DESCRIPTION
Si9731 is a chemistry independent battery charger designed
to pulse charge 1-cell to 3-cell NiCd/NiMH or 1-cell Li-ion
batteries. Battery charging is accomplished under direct
control from the system processor. An internal low R DS(on)
MOSFET can be pulsed on and off at varying duty cycle by
the system processor to pulse charge the battery at high
charge current while minimizing heat dissipation. Provision is
also made to trickle charge a discharged battery until the
battery is charged to a high enough voltage to wake up the
processor so that the processor can take control of the
charging process. For charging Li-ion batteries, Si9731
includes a precision voltage reference and an error amplifier
for constant voltage (CV) charge mode. The Si9731 is
available in lead (Pb)-free TSSOP-16 package and is
classified over the industrial temperature range (- 40 °C to
+ 85 °C).
FEATURES
? Pulse charges 1-cell Li-ion or 1-cell to 3-cell
NiCd/NiMH batteries
? Integrated MOSFETs with bi-directional
reverse current blocking in "OFF" mode
? PWM controlled fast charging mode
? Low current trickle charge mode
? Pin selectable 4.1 V or 4.2 V charge termination for Li-ion
? Constant voltage (CV) termination for Li-ion
? Input over-voltage detector with automatic shutdown
? External shutdown
? Under 1 μA reverse battery leakage current in shutdown
? Complete isolation from battery to external power supply
in shutdown
? Thermal shutdown
? Minimum number of external components
? ESD protection to 4 kV on charger input and battery
output
? TSSOP-16 package (1.2 mm maximum height)
? Halogen-free according to IEC 61249-2-21 definition
? Compliant to RoHS directive 2002/95/EC
APPLICATIONS
? Cellular phone battery charger
? Personal digital assistants
FUNCTIONAL BLOCK DIAGRAM
V BAT
V CHARGER
Fast
Charge
B
a
ON/OFF
Trickle
Charge
t
t
e
r
y
TRICKLECHARGEENABLE
CV MODE
FAST CHARGE
GND
Document Number: 71321
S09-2249-Rev. C, 26-Oct-09
Charge Control
4.1/4.2 V_TAP
www.vishay.com
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SI9731SB | 功能描述:电池管理 SI9731 System Board 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 |
| SI9750 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:In-Rush Current Limit MOSFET Driver |
| SI9750_05 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:In-Rush Current Limit MOSFET Driver |
| SI9750CY | 功能描述:功率驱动器IC MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| SI9750CY-E3 | 功能描述:功率驱动器IC InRush Current Limit MOSFET RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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