Single-Chip Charge and System Power-Path Management IC (bqTINY-III)
BQ24031 描述
The bqTINY™ III-series of devices are highly integrated Li-ion linear chargers and system power-path management devices targeted at space-limited portable applications. The bqTINY III-series offer integrated USB-port and DC supply (AC adapter), power-path management with autonomous power-source selection, power FETs and current sensors, high accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device.
The bqTINY III-series powers the system while independently charging the battery. This feature reduces the charge and discharge cycles on the battery, allows for proper charge termination and allows the system to run with an absent or defective battery pack
|
BQ24030 |
BQ24031 |
BQ24032A |
BQ24035 |
BQ24038 |
| # Series Cells |
1 |
1 |
1 |
1 |
1 |
| Charge Current(Max)(A) |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
| Charge Status Outputs |
2 |
2 |
2 |
2 |
2 |
| Control Topology |
Linear |
Linear |
Linear |
Linear |
Linear |
| Primary Charge Termination Method |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
| Pin/Package |
20QFN |
20QFN |
20QFN |
20QFN |
20QFN |
| Vin(Max)(V) |
18 |
18 |
18 |
18 |
18 |
| Battery Charge Voltage(V) |
4.2 |
4.1 |
4.2 |
4.2 |
4.36 |
| Optional Functions |
Vout Regulated to 6V |
Vout Regulated to 6V |
Vout Regulated to 4.4V |
Vout cutoff at 6V |
Vout Regulated to 4.4V |
BQ24031 特性
- Small 3,5 mm × 4,5 mm QFN Package
- Designed for Single-Cell Li-Ion- or Li-Polymer-Based Portable Applications
- Integrated Dynamic Power-Path Management (DPPM) Feature Allowing the AC Adapter
or the USB Port to Simultaneously Power the System and Charge the Battery
- Power Supplement Mode Allows Battery to Supplement the USB or AC Input Current
- Autonomous Power Source Selection (AC Adapter or USB)
- Integrated USB Charge Control With Selectable 100-mA and 500-mA Maximum Input
Current Regulation Limits
- Dynamic Total Current Management for USB
- Supports Up to 2-A Total Current
- 3.3-V Integrated LDO Output
- Thermal Regulation for Charge Control
- Charge Status Outputs for LED or System Interface Indicates Charge and
Fault Conditions
- Reverse Current, Short-Circuit, and Thermal Protection
- Power Good (AC Adapter and USB Port Present) Status Outputs
- Charge Voltage Options: 4.1V, 4.2V, or 4.36V
- APPLICATIONS
- Smart Phones and PDA
- MP3 Players
- Digital Cameras Handheld Devices
- Internet Appliances
BQ24031 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 |
| BQ24031RHLR |
ACTIVE |
-40 to 125 |
1.80 | 1ku |
QFN (RHL) | 20 |
3000 | LARGE T&R |
BZJ |
| BQ24031RHLRG4 |
ACTIVE |
-40 to 125 |
1.80 | 1ku |
QFN (RHL) | 20 |
3000 | LARGE T&R |
BZJ |
| BQ24031RHLT |
ACTIVE |
-40 to 125 |
2.10 | 1ku |
QFN (RHL) | 20 |
250 | SMALL T&R |
BZJ |
| BQ24031RHLTG4 |
ACTIVE |
-40 to 125 |
2.10 | 1ku |
QFN (RHL) | 20 |
250 | SMALL T&R |
BZJ |
BQ24031 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 |
| BQ24031RHLR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24031RHLR |
BQ24031RHLR |
| BQ24031RHLRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24031RHLRG4 |
BQ24031RHLRG4 |
| BQ24031RHLT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24031RHLT |
BQ24031RHLT |
| BQ24031RHLTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24031RHLTG4 |
BQ24031RHLTG4 |
BQ24031 应用技术支持与电子电路设计开发资源下载
- BQ24031 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)
BQ24031 相关工具
