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BQ2063

更新时间： 2024-11-12 22:48:27
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德州仪器 - TI /
页数 文件大小 规格书
58页 739K
描述
SBS v1.1-COMPLIANT Li-ION GAS-GAUGE IC WITH PROTECTOR INTERFACE

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BQ2063 数据手册

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bq2063  
SBS v1.1-COMPLIANT Li-ION GAS-GAUGE IC  
WITH PROTECTOR INTERFACE  
SLUS468E– MAY 2001 – REVISED APRIL 2002  
SSOP (DBQ) PACKAGE  
(TOP VIEW)  
D
D
D
Provides Accurate Measurement of  
Available Charge in Li-Ion Batteries  
Supports the 2-Wire SMBus V1.1 Interface  
With PEC or Single-Wire HDQ16  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
HDQ16  
ESCL  
ESDA  
RBI  
REG  
VOUT  
VCC  
SMBC  
SMBD  
SAFETY  
GND  
GND  
VCELL  
SR1  
SR2  
SRC  
TS  
2
3
Directly Interfaces the Seiko S-8243  
Protection IC for Maximum Safety  
Protection and Minimal Component Count  
4
5
6
D
D
D
D
Supports Internal or External Thermistor  
Reports Individual Cell Voltages  
7
8
VSS  
9
CTL2  
CTL3  
CTL4  
LED1  
LED2  
LED3  
Uses 15-Bit ADC for Accurate Voltage,  
Temperature, and Current Measurements  
10  
11  
12  
13  
14  
THON  
DISP  
LED5  
LED4  
Measures Charge Flow Using A V-to-F  
Converter With Offset of Less Than 16 µV  
After Calibration  
D
D
Consumes Less Than 0.5 mW Operating  
Drives 4- or 5-Segment LED Display for  
Remaining Capacity Indication  
D
28-Pin 150-Mil SSOP  
description  
The bq2063 SBS-compliant gas gauge IC for battery-pack or in-system installation maintains an accurate  
record of available charge in Li-Ion batteries. The bq2063 monitors capacity and other critical parameters in  
Li-Ion battery packs. It also directly interfaces the Seiko S-8243 protection IC to minimize component count in  
smart-battery circuits.  
The bq2063 uses a V-to-F converter with automatic offset correction for charge and discharge counting. For  
voltage, temperature, and current reporting, the bq2063 uses an A-to-D converter. In conjunction with the  
S-8243, the onboard ADC also monitors individual cell voltages in a Li-Ion battery pack and allows the bq2063  
to generate control signals to enhance pack safety.  
The bq2063 supports the smart battery data (SBData) commands and charge-control functions. It  
communicates data using the system management bus (SMBus) 2-wire protocol or the 1-wire HDQ16 protocol.  
The data available include the battery’s remaining capacity, temperature, voltage, current, and remaining  
run-time predictions. The bq2063 provides LED drivers and a push-button input to depict remaining battery  
capacity from full to empty in 20% or 25% increments with a 4- or 5-segment display.  
The bq2063 works with an external EEPROM. The EEPROM stores the configuration information for the  
bq2063, such as the battery’s chemistry, self-discharge rate, rate-compensation factors, measurement  
calibration, and design voltage and capacity. The bq2063 uses the programmable self-discharge rate and other  
compensation factors stored in the EEPROM to accurately adjust remaining capacity for use and standby  
conditions based on time, rate, and temperature. The bq2063 also automatically calibrates or learns the true  
battery capacity in the course of a discharge cycle from programmable near full to near empty levels.  
The S-8243 protection IC may be used to provide power to the bq2063 from a 3- or 4-series Li-Ion cell stack.  
AVAILABLE OPTIONS  
PACKAGE  
T
J
28-LEAD SSOP  
(DBQ)  
–20°C to 70°C  
bq2063DBQ  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Copyright 2002, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...58

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