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参数资料
| 型号： | SI9730DBY-T1-E3 |
| 厂商： | Vishay Siliconix |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC CONTROLLR LI-ION 4.32V 8SOIC |
| 标准包装： | 2,500 |
| 功能： | 双电池控制器 |
| 电池化学： | 锂离子（Li-Ion） |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
Product is End of Life 3/2014
Si9730
Vishay Siliconix
Dual-Cell Lithium Ion Battery Control IC
DESCRIPTION
FEATURES
The Si9730 monitors the charging and discharging of dual-
cell lithium-ion battery packs (carbon or coke chemistry)
ensuring that battery capacity is fully utilized while ensuring
safe operation. The Si9730 provides protection against over-
charge, over-discharge, and short circuit conditions which
are hazardous to the battery and the environment.
Battery voltages of each individual cell are monitored at the
center-tap connection by an internal A/D converter through
the V C pin. If one or both of the cells is determined to be
overcharged, an internal cell balancing network "bleeds" off
current at 15 μA until both cells are charged to the same
maximum level. Depending on the condition of each cell, the
Si9730 will switch two external source-connected N-Channel
MOSFETs on or off to allow the cells to be charged or to pro-
vide current to the load.
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Over-Charge Protection
Over-Discharge Protection
Short Circuit Current Limiting
Battery Open-Circuit Center Tap Protection
Cell Voltage Balancing
Undervoltage Lockout
Individual Cell Voltage Monitoring
Low Operating Current (30 μA) and Shutdown Current
(1 μA)
Internal N-Channel MOSFET Driver
High Noise Immunity
Accurate (± 1.19 %) Over-Charge Voltage Detection
Four Different Cell Types Covered
The Si9730 is available in an 8-pin SOIC package with an
operating temperature range of - 25 to 85 °C. The Si9730 is
available in both standard and lead (Pb)-free packages.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
C
V DD
Undervoltage
+
V C1
?
Cell Balancing
Network
Lockout
Timer
C DELAY
V C
A/D
Converter
OUT
Control
Logic
Time Out
CLK
+
V C2
?
Oscillator
V SS
DCO
I S
Document Number: 70658
S-40135-Rev. F, 16-Feb-04
1.2 V REF
I LIMIT
S OUT
V SS
V M
GS Generator
V M
www.vishay.com
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SI9731 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:UP Controlled Battery Charger For 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries |
| SI9731_09 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:uP Controlled Battery Charger for 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries |
| SI9731DB | 功能描述:电池管理 SI9731 Demo 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 |
| SI9731DQ | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:uP Controlled Battery Charger for 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries |
| SI9731DQ-T1 | 功能描述:电池管理 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 |
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