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BQ25071DQCR PDF预览

BQ25071DQCR

更新时间: 2024-09-30 01:08:55
品牌 Logo 应用领域
德州仪器 - TI 电池光电二极管
页数 文件大小 规格书
26页 1087K
描述
bq25071 1-A, Single-Input, Single-Cell LiFePO4 Linear Battery Charger with 50 mA LDO

BQ25071DQCR 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:HVSON,
Reach Compliance Code:compliantFactory Lead Time:6 weeks
风险等级:5.67其他特性:RECHARGE DETECTION THRESHOLD IS 3.3V
可调阈值:YES模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDSO-N10JESD-609代码:e4
长度:2 mm湿度敏感等级:2
信道数量:1功能数量:1
端子数量:10最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:HVSON封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
座面最大高度:0.75 mm最大供电电流 (Isup):1 mA
最大供电电压 (Vsup):28 V最小供电电压 (Vsup):3.75 V
标称供电电压 (Vsup):4.5 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL阈值电压标称:3.5
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3 mm
Base Number Matches:1

BQ25071DQCR 数据手册

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bq25071  
SLUSBK6 JULY 2014  
bq25071 1-A, Single-Input, Single-Cell LiFePO Linear Battery Charger with 50 mA LDO  
4
1 Features  
3 Description  
The bq25071 is a highly integrated, linear, LiFePO4  
battery charger targeted at space-limited portable  
applications. It accepts power from either a USB port  
or AC adapter and charges a single-cell LiFePO4  
battery with up to 1 A of charge current. The 30 V  
input rating with 10.5 V input overvoltage protection  
supports low-cost unregulated adapters.  
1
Single Cell LiFePO4 Charging Algorithm  
30V Input Rating, With 10.5 V Overvoltage  
Protection (OVP)  
50mA Integrated Low Dropout Linear Regulator  
(LDO)  
Programmable Charge Current Through ISET and  
EN Terminals  
The bq25071 has  
a single power output that  
simultaneously charges the battery and powers the  
system. The input current is programmable from 100  
mA up to 1 A using the ISET input or configurable for  
USB500. There is also a 4.9 V ±10% 50 mA LDO  
integrated into the IC for supplying low power  
external circuitry.  
7% Charge Current Regulation Accuracy  
Thermal Regulation and Protection  
Soft-Start Feature to Reduce Inrush Current  
Battery NTC Monitoring  
Charging Status Indication  
The LiFePO4 charging algorithm removes the current  
taper typically seen as part of the constant voltage  
mode control used in Li-Ion battery charge cycles  
which reduces charge time significantly. Instead, the  
battery is fast charged to the overcharge voltage and  
then allowed to relax to a lower float charge voltage  
threshold. The charger integrates the power stage  
with the charge current and voltage sense to achieve  
a high level of accuracy in the current and voltage  
regulation loops. An internal control loop monitors the  
IC junction temperature through the charge cycle and  
reduces the charge current if an internal temperature  
threshold is exceeded.  
2 Applications  
Smart Phones  
Mobile Phones  
Portable Media Players  
Low Power Handheld Devices  
Device Information(1)  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
bq25071  
WSON (10)  
2.00mm x 3.00mm  
(1) For all available packages, see the orderable addendum at  
the end of the datasheet.  
4 Application Schematic  
Pull-Up  
bq25071  
STATUS  
USB or TA  
CHG  
OUT  
VBUS  
GND  
D+  
IN  
VDD  
D-  
ABB  
EN  
BAT  
TS  
PACK+  
TEMP  
ISET  
GND  
PACK-  
VCHG DET  
USB DET  
LDO  
PWRPD  
VUSBIN  
ACDET  
GPIO  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 

BQ25071DQCR 替代型号

型号 品牌 替代类型 描述 数据表
BQ25071DQCT TI

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bq25071 1-A, Single-Input, Single-Cell LiFePO4 Linear Battery Charger with 50 mA LDO

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