Datasheet > HT7Q1521

HT7Q1521

更新时间： 2024-09-22 15:19:03

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		电池
页数	文件大小	规格书
20页	1074K
描述
3 to 8 Cell Analog Front End for Li-Battery Protection

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

HT7Q1521 数据手册

HT7Q1521

3 to 8 Cell Analog Front End

for Li-Battery Protection

Features

General Description

• V_INInput Range from 7.5V to 36V

• Accumulative Cell Voltage Monitor

The HT7Q1521 is a high voltage analog-front-end IC

for 3 to 8 cell Li-ion rechargeable battery protection.

It consists of an accumulative cell voltage monitor

and a high accuracy voltage regulator. The device is

designed to monitor an accumulative voltage from 1

to N and outputs the divide-by-N voltage to the ana-

log multiplexer with a ±0.5% divided ratio accuracy.

The anti-reverse current switch is implemented to

prevent a backﬂow current even if V_OUTis higher than

V_BATn. Each divided accumulative cell voltage can be

observed sequentially from VBAT1 to VBAT8 which

beneﬁts MCUs with a lower number of ADCs. There

are 3 control bits, B0, B1 and B2, to select which

terminal voltage outputs with a maximum 100Hz

scanning frequency when C_OUT=2.2nF. The enable

pin, EN_S, is used to close all switches and the output

voltage is pulled down by an internal 1MΩ resistor.

An integrated regulator provides a 5V supply to the

MCU with a 30mA driving current capability and

which has ±1% accuracy. The voltage regulator and

cell voltage monitor are shut down with an ultra-low

standby current of 0.1μA when the device is in the

Sleep Mode. When the HVWK pin is triggered by a

voltage greater than its threshold, the device will re-

turn to the normal operating state.

• 8-to-1 Analog Multiplexer with divided ratio

accuracy: 1/n ± 0.5%

• Reverse-current prevention switching scan fre-

quency of 100Hz

• Requires fewer MCU A/D Converters (ADCs)

• 5V/30mA internal Voltage Regulator with ±1%

accuracy

• Sleep Mode with 0.1μA ultra-low standby current

• Direct High Voltage Wake-up function

• Operating Temperature Range: -40°C to +85°C

• Package Types: 16-pin NSOPand 24-pin SSOP

(150mil)

Applications

• Electric power tools

• Handheld vacuum cleaners

Rev. 1.00

June 26, 2023

12 3 4 5 6 7...20

中文翻译

下载PDF

与HT7Q1521相关器件

型号	品牌	获取价格	描述	数据表
HT7Q1531	HOLTEK	获取价格	3 to 8 Cell Analog Front End for Li-Battery Protection
HT801/DF59-22P	HRS	获取价格	2mm Pitch, Multi Functional Connector System
HT801/DF59M-2224P	HRS	获取价格	2mm Pitch, Multi Functional Connector System
HT801/DF59M-2628P	HRS	获取价格	2mm Pitch, Multi Functional Connector System
HT801/DF62-22(10)	HRS	获取价格	连接器产品
HT801/DF62-2428(10)	HRS	获取价格	连接器产品
HT801/DF62-30(10)	HRS	获取价格	连接器产品
HT802/DF63-1618P-1	HRS	获取价格	15A 3.96mm pitch Wire-to-Board Connectors for Internal Power Supply
HT802/DF63-1618P-2	HRS	获取价格	15A 3.96mm pitch Wire-to-Board Connectors for Internal Power Supply
HT802/DF63-1618S-1	HRS	获取价格	15A 3.96mm pitch Wire-to-Board Connectors for Internal Power Supply