BQ25012 具有集成同步降压转换器、固定输出 1.8V 的双输入充电器
|
BQ25012 |
| # Series Cells |
1 |
| Charge Current(Max)(A) |
0.5 |
| Charge Status Outputs |
2 |
| Control Topology |
Linear |
| Switching Frequency(kHz) |
1000 |
| Primary Charge Termination Method |
Minimum Current |
| Pin/Package |
20QFN |
| Vin(Max)(V) |
7 |
| Battery Charge Voltage(V) |
4.2 |
| Optional Functions |
Fixed Output 1.8V |
BQ25012 描述
The bq25015/7 are highly integrated charge and power management devices targeted at space-limited bluetooth applications. The bq25015/7 devices offer integrated power FET and current sensor for charge control, reverse blocking protection, high accuracy current and voltage regulation, charge status, charge termination, and a highly efficient and low-power dc-dc converter in a small package.
The bq25015/7 devices charge the battery in three phases: conditioning, constant current and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety feature for charge termination. The bq25015/7 automatically re-starts the charge if the battery voltage falls below an internal threshold
BQ25012 特性
- Li-Ion Or Li-Pol ChargeManagement and Synchronous DC-DC Power Conversion In a Single Chip
- Charges and Powers the System from Either the AC Adapter or USB with Autonomous Power Source Selection
- Integrated USB Charge Control with Selectable 100 mA and 500 mA Charge Rates
- Integrated Power FET and Current Sensor for Up to 500 mA Charge Applications AND 300 mA DC-DC Controller with Integrated FETs
- Reverse Leakage Protection Prevents Battery Drainage
- Automatic Power Save Mode For High Efficiency at Low Current, or Forced PWM for Frequency Sensitive Applications
- APPLICATIONS
- MP3 Players
- PDAs, Smartphones
- Digital Cameras
BQ25012 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 |
| BQ25012RHLR |
ACTIVE |
-40 to 125 |
1.60 | 1ku |
QFN (RHL) | 20 |
3000 | LARGE T&R |
BZM |
| BQ25012RHLRG4 |
ACTIVE |
-40 to 125 |
1.60 | 1ku |
QFN (RHL) | 20 |
3000 | LARGE T&R |
BZM |
| BQ25012RHLT |
ACTIVE |
-40 to 125 |
1.85 | 1ku |
QFN (RHL) | 20 |
250 | SMALL T&R |
BZM |
| BQ25012RHLTG4 |
ACTIVE |
-40 to 125 |
1.85 | 1ku |
QFN (RHL) | 20 |
250 | SMALL T&R |
BZM |
BQ25012 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 |
| BQ25012RHLR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
BQ25012RHLR |
BQ25012RHLR |
| BQ25012RHLRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
BQ25012RHLRG4 |
BQ25012RHLRG4 |
| BQ25012RHLT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
BQ25012RHLT |
BQ25012RHLT |
| BQ25012RHLTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
BQ25012RHLTG4 |
BQ25012RHLTG4 |
BQ25012 应用技术支持与电子电路设计开发资源下载
- BQ25012 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
- 照明和显示屏电源选择指南 (PDF 1427 KB)
- QFN Layout Guidelines (PDF 1279 KB)
- 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- PowerPAD™ Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 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)
BQ25012 相关工具
