BQ2005 NiCd/NiMH 开关模式充电管理 IC，用于双电池组的顺序充电
BQ2005 描述
The bq2005 Fast-Charge IC provides comprehensive fast charge control functions together with high-speed switching power control circuitry on a monolithic CMOS device for sequential charge management in dual battery pack applications.
Integration of closed-loop current control circuitry allows the bq2005 to be the basis of a cost-effective solution for stand-alone and system-integrated chargers for batteries of one or more cells.
Switch-activated discharge-before-charge allows bq2005-based chargers to support battery conditioning and capacity determination.
High-efficiency power conversion is accomplished using the bq2005 as a hysteretic PWM controller for switch-mode regulation of the charging current. The bq2005 may alternatively be used to gate an externally regulated charging current
| BQ2005 | |
| # Series Cells | Multiple |
| Charge Current(Max)(A) | >2 |
| Charge Status Outputs | 4 |
| Control Topology | Switchmode |
| Switching Frequency(kHz) | 300 |
| Primary Charge Termination Method | (-)dV, dT/dt |
| Pin/Package | 20SOIC |
| Vin(Max)(V) | 7 |
BQ2005 特性
- Sequential fast charge and conditioning of two NiCd or NiMH nickel cadmium or nickel-metal hydride battery packs
- Hysteretic PWM switch-mode current regulation or gated control of an external regulator
- Easily integrated into systems or used as a stand-alone charger
- Pre-charge qualification of temperature and voltage
- Direct LED outputs display battery and charge status
- Fast-charge termination by
V, maximum voltage, maximum temperature, and maximum time
- Optional top-off and pulse-trickle charging
BQ2005 芯片订购指南
| 器件 | 状态 | 温度 (oC) | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| BQ2005PN | OBSOLETE | -20 to 70 | PDIP (N) | 20 | |||
| BQ2005S | ACTIVE | -20 to 70 | 2.65 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| BQ2005SG4 | ACTIVE | -20 to 70 | 2.65 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| BQ2005STR | ACTIVE | -20 to 70 | 2.20 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| BQ2005STRG4 | ACTIVE | -20 to 70 | 2.20 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R |
BQ2005 质量与无铅数据
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| BQ2005S | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | BQ2005S | BQ2005S |
| BQ2005SG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | BQ2005SG4 | BQ2005SG4 |
| BQ2005STR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | BQ2005STR | BQ2005STR |
| BQ2005STRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | BQ2005STRG4 | BQ2005STRG4 |
BQ2005 应用技术支持与电子电路设计开发资源下载
- BQ2005 数据资料 dataSheet 下载.PDF
- TI 德州仪器电池管理产品选型与价格 . xls
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- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
BQ2005 相关工具
| 名称 | 型号 | 工具/软件类型 |
| EV2200 PC 接口板 | EV2200 | 开发电路板/EVM |