没有合适的资源?快使用搜索试试~ 我知道了~
首页单电池Li-Ion电池充电器MP2661:高集成度电源管理芯片
单电池Li-Ion电池充电器MP2661:高集成度电源管理芯片
需积分: 48 18 下载量 41 浏览量
更新于2024-07-18
3
收藏 1.89MB PDF 举报
电源管理芯片MP2661 MP2661是一款高度集成的单节锂离子/锂聚合物电池充电器,具有空间受限、便携式应用的系统电源路径管理功能。该芯片使用来自交流适配器或USB端口的输入电源为系统负载和电池供电,独立地充电电池。 充电器功能特点包括: * Trick充电:在电池电压低于阈值时,进行 trickle 充电,以避免电池过度放电。 * 恒流(CC)充电:在电池电压达到阈值时,进行恒流充电,以确保电池充电安全。 * 恒压(CV)充电:在电池电压达到阈值时,进行恒压充电,以确保电池充电安全。 * 充电终止:在电池充电完成时,终止充电,以避免电池过度充电。 * 充电状态监控:实时监控电池充电状态,确保电池充电安全。 电源路径管理功能可以确保系统的连续供电,自动选择输入、电池或两者来供电系统。该功能通过一个低dropout调节器从输入到系统和一个100mΩ开关从电池到系统来实现。电源路径管理还将充电电流与系统负载分离,以确保充电终止正确和保持系统稳定。 MP2661芯片的特点还包括: * 高度集成的设计,减少外围元件的需求。 * 低功耗设计,降低系统的功耗。 * 高效的充电管理,确保电池充电安全和高效。 * 广泛的输入电压范围,适应不同的电源输入。 * 广泛的输出电压范围,适应不同的系统负载需求。 MP2661是一款功能强大、集成度高的电源管理芯片,适合空间受限、便携式应用的需求。
资源详情
资源推荐
MP2661 – 0.5A, 1-CELL CHARGER W/ I
2
C CONTROL AND POWER PATH
MP2661 Rev. 1.0 www.MonolithicPower.com 6
4/14/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (continued)
V
IN
= 5.0V, V
BATT
= 3.5V, T
A
= +25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
IN to SYS switch on
resistance
R
ON_SYS
V
IN
= 5V, I
SYS
= 100mA
300
400
mΩ
Supply current at input
I
IN
V
IN
= 5.5V, CE = L, enable,
I
CHG
= 0A, I
SYS
= 0A
600
µA
V
IN
= 5.5V, CE = H, charge
disabled
480
Supply current at BATT
input
I
BATT
V
IN
= 5V, CE = L, I
SYS
= 0A,
V
BATT
= 4.3V
32
µA
V
IN
= 0V, CE = H, I
SYS
= 0A,
V
BATT
= 4.35V, disable PCB OTP
function, do not include the
current from external NTC
resistor
11
13
V
IN
= 0V, CE = H, I
SYS
= 0A,
V
BATT
= 4.35V, enable PCB OTP
function, do not include the
current from external NTC
resistor
20
24
V
BATT
= 4.5V, V
IN
= V
SYS
= GND,
FET_DIS = 1, disconnect mode
4
5.5
BATT input to SYS switch
on resistance
R
ON_BATT
V
IN
< 2V, V
BATT
= 3.5V,
I
SYS
= 100mA
100
150
mΩ
BATT to SYS current limit
I
BATT_MAX
Program Range
400
3200
(5)
mA
BATT to SYS switch
leakage
V
BATT
= 4.5V, V
IN
= V
SYS
= GND,
disconnect mode
1
µA
SYS reverse to BATT
switch leakage
V
SYS
= 6V, V
IN
= 4.5V,
V
BATT
= GND, CE = H
1
µA
Battery discharge function
controlled by INT
(5)
t
INT
INT pull-low lasting time to turn
off the battery discharge function
16
s
Battery MOSFET lasts for the off
time duration before auto-on
4
Battery Charger
Battery voltage regulation
range
V
BATT_REG
Programmable using I
2
C
3.600
4.545
V
Battery voltage regulation
(V
BATT_REG
= 4.2V)
V
BATT
T = +25°C, I
BATT
= 15mA
4.179
4.20
4.221
V
Battery charge full voltage
(I
2
C]
V
BATT_REG
V
BATT_REG
= 4.2V,
Reg04 [7:2] = 101000
4.179
4.20
4.221
V
V
BATT_REG
= 4.35V,
Reg04 [7:2] = 110010
4.328
4.35
4.372
GOERTEK USE ONLY / DO NOT DISTRIBUTE
MP2661 – 0.5A, 1-CELL CHARGER W/ I
2
C CONTROL AND POWER PATH
MP2661 Rev. 1.0 www.MonolithicPower.com 7
4/14/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (continued)
V
IN
= 5.0V, V
BATT
= 3.5V, T
A
= +25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Constant current regulation
for charging
I
CHG
V
IN
= 5V, V
BATT
= 3.8V,
programmable range
8
535
(5)
mA
V
IN
= 5V, V
BATT
= 3.8V,
I
CHG_SETTING
= 93mA
88
93
98
V
IN
= 5V, V
BATT
= 3.8V,
I
CHG_SETTING
= 246mA
232
248
263
V
IN
= 5V, V
BATT
= 3.8V,
I
CHG_SETTING
= 399mA
376
401
426
Charging current thermal
foldback threshold
(5)
Junction Temperature
Regulation
Reg06 [1:0] = 11 – 120°C
120
°C
Trickle current
I
TC
Program range
6
27
mA
I
TC_setting
= 6mA, Reg03h [1:0] =
00
2.5
4.7
I
TC_setting
= 20mA, Reg03h [1:0] =
10
14
18
22
End of charge (EOC)
current threshold
I
BF
I
CHG_SETTING
≤ 263mA, (Reg02 bit
[4] = 0), I
TC_SETTING
= 6mA
5
7
9
mA
I
CHG_SETTING
≤ 263mA, (Reg02 bit
[4] = 0), I
TC_SETTING
= 13mA
10
13.5
17
I
CHG_SETTING
≤ 263mA, (Reg02 bit
[4] = 0), I
TC_SETTING
= 20mA
16
20
24
I
CHG_SETTING
≤ 263mA, (Reg02 bit
[4] = 0), I
TC_SETTING
= 27mA
22
27
32
I
CHG_SETTING
≥ 280mA, (Reg02 bit
[4] = 1), I
TC_SETTING
= 6mA
10
13.5
17
I
CHG_SETTING
≥ 280mA, (Reg02 bit
[4] = 1), I
TC_SETTING
= 13mA
22
27
32
I
CHG_SETTING
≥ 280mA, (Reg02 bit
[4] = 1), I
TC_SETTING
= 20mA
34
42
49
I
CHG_SETTING
≥ 280mA, (Reg02 bit
[4] = 1), I
TC_SETTING
= 27mA
46
55
64
End of charge current
threshold hysteresis
I
BF_HYS
I
CHG_SETTING
≤ 263mA, (Reg02 bit
[4] = 0), I
TC_SETTING
= 20mA
7.5
11
15
mA
I
CHG_SETTING
≥ 280mA, (Reg02
bit [4] = 0), I
TC_SETTING
= 20mA
19
24
29
Trickle charge threshold
voltage
V
BATT_LOW
V
BATT
rising, set V
BATT_LOW
=
3.0V
2.8
3.0
3.1
V
Trickle voltage hysteresis
90
mV
Recharge threshold below
V
BATT_REG
V
RECHG
Reg04 [0] = 0
120
160
200
mV
Reg04 [0] = 1
260
300
350
GOERTEK USE ONLY / DO NOT DISTRIBUTE
剩余31页未读,继续阅读
宁静以致墨
- 粉丝: 774
- 资源: 22
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
最新资源
- JDK 17 Linux版本压缩包解压与安装指南
- C++/Qt飞行模拟器教员控制台系统源码发布
- TensorFlow深度学习实践:CNN在MNIST数据集上的应用
- 鸿蒙驱动HCIA资料整理-培训教材与开发者指南
- 凯撒Java版SaaS OA协同办公软件v2.0特性解析
- AutoCAD二次开发中文指南下载 - C#编程深入解析
- C语言冒泡排序算法实现详解
- Pointofix截屏:轻松实现高效截图体验
- Matlab实现SVM数据分类与预测教程
- 基于JSP+SQL的网站流量统计管理系统设计与实现
- C语言实现删除字符中重复项的方法与技巧
- e-sqlcipher.dll动态链接库的作用与应用
- 浙江工业大学自考网站开发与继续教育官网模板设计
- STM32 103C8T6 OLED 显示程序实现指南
- 高效压缩技术:删除重复字符压缩包
- JSP+SQL智能交通管理系统:违章处理与交通效率提升
资源上传下载、课程学习等过程中有任何疑问或建议,欢迎提出宝贵意见哦~我们会及时处理!
点击此处反馈
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功