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bq24650同步整流MPPT充电ic手册， 秒杀CN3722
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
部分文件列表
| 文件名 | 大小 |
| bq24650同步整流MPPT充电ic_秒杀CN3722.pdf | 3M |
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（完整内容请下载后查看）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
•
•
•
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.
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·····