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bq24650同步整流MPPT充电ic手册， 秒杀CN3722

更新时间：2019-09-12 14:15:27 大小：3M 上传用户：key668查看TA发布的资源 标签：bq24650同步整流mppt 下载积分：1分 评价赚积分 （如何评价?） 打赏 收藏 评论(2) 举报

资料介绍

最近在做一个太阳能充电的项目,使用了这个ic,充电电流稳定,发热小,好用

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bq24650同步整流MPPT充电ic_秒杀CN3722.pdf 3M

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SLUSA75A –JULY 2010–REVISED APRIL 2016  
bq24650 Synchronous Switch-Mode Battery Charge Controller for Solar Power  
With Maximum Power Point Tracking  
1
1 Features  
•
Maximum Power Point Tracking (MPPT)  
Capability by Input Voltage Regulation  
•
Small 3.5 × 3.5 mm2 16-Pin QFN Package  
2 Applications  
•
•
•
Programmable MPPT Setting  
5-V to 28-V Input Solar Panel  
•
•
•
•
•
Solar-Powered Applications  
Remote Monitoring Stations  
Portable Handheld Instruments  
12-V to 24-V Automotive Systems  
Current-Limited Power Source  
600-kHz NMOS-NMOS Synchronous Buck  
Controller  
•
•
Resistor Programmable Float Voltage  
Accommodates Li-Ion/Polymer, LiFePO4, Lead  
Acid Chemistries  
3 Description  
•
Accuracy  
The bq24650 device is a highly integrated switch-  
mode battery charge controller. It provides input  
voltage regulation, which reduces charge current  
when input voltage falls below a programmed level.  
When the input is powered by a solar panel, the input  
regulation loop lowers the charge current so that the  
solar panel can provide maximum power output.  
–
–
–
±0.5% Charge Voltage Regulation  
±3% Charge Current Regulation  
±0.6% Input Voltage Regulation  
•
•
High Integration  
–
–
Internal Loop Compensation  
Internal Digital Soft Start  
The  
synchronous PWM controller with high accuracy  
current and voltage regulation, charge  
bq24650  
offers  
a
constant-frequency  
Safety  
–
–
–
–
Input Overvoltage Protection  
preconditioning, charge termination, and charge  
status monitoring.  
Battery Temperature-Sensing  
Battery Absent Detection  
Thermal Shutdown  
Device Information(1)  
•
•
•
Charge Status Outputs for LED or Host Processor  
Charge Enable on MPPSET Pin  
PART NUMBER  
PACKAGE  
BODY SIZE (NOM)  
bq24650  
VQFN (16)  
3.50 mm × 3.50 mm  
Automatic Sleep Mode for Low Power  
Consumption  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
–
< 15-μA OFF-State Battery Discharge Current  
Typical Application  
Solar Cell  
Half Panel  
D1  
VIN  
Ω
R6: 10  
R5  
2Ω  
C1  
2.2µF  
VCC  
C2  
1uF  
bq24650  
VREF  
C3  
1µF  
C4:1µF  
D2  
R9  
5.23kΩ  
R3  
REGN  
499kΩ  
C6  
10uF  
MPPSET  
TS  
BTST  
HIDRV  
PH  
Pack  
Thermistor  
Q1  
RSR  
20mΩ  
C5  
100nF  
L: 10µH  
Battery Pack  
R10  
30.1kΩ  
CE  
R4  
36kΩ  
Q3  
Q2  
C9  
4.7µF  
TERM_EN  
LODRV  
GND  
C8  
10µF  
C10  
22pF  
R2  
499kΩ  
VIN  
D3  
D4  
SRP  
SRN  
C7  
0.1µF  
STAT1  
R7:10kΩ  
R1  
100kΩ  
R8:10k Ω  
STAT2 Thermal  
Pad  
VFB  
Copyright © 2016, Texas Instruments Incorporated  
Solar Panel 21 V, MPPT = 18 V, 2-cell, ICHARGE = 2 A, IPRECHARGE = ITERM = 0.2 A, TS = 0 - 45°C  
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.  
 
 
 
 
 
 

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全部评论(2)

  • 2023-08-19 23:23:16COP

    感谢分享

  • 2021-02-22 15:27:03cheney0103

    只是芯片手册·····

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