herunterladen
bq8015
SLUS522A – JANUARY 2002 – REVISED SEPTEMBER 2002
Cool-GG PROGRAMMABLE BATTERY MANAGEMENT IC
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www.ti.com
FEATURES
D
Powerful Low-Power 8-Bit RISC CPU Core
Operating at up to 4 MHz Clock Frequency
D Flexible Memory Architecture
– 16k × 22 Program Flash EPROM
– 4k × 22 Program Mask ROM
– 512 × 8 Data Flash EPROM
– 512 × 8 Data RAM
D Three Reduced Power Modes
– Low Power: <240 µA
– Sleep: < 8 µA
– Hibernate: <0.5 µA
D High-Accuracy Analog Front End With Two
Independent ADCs
– High-Resolution Integrator for Coulomb
Counting—Better Than 3nVh Resolution
– Coulomb Counter Self-Calibration
Reduces Offset to Less Than 1 µV
– 15-Bit Delta-Sigma ADC With a 12-Channel
Multiplexer for Voltage, Current, and
Temperature Measurements
D Accurate On-Chip 32.768-kHz Oscillator
D Internal Clock Synthesizer Generates
Frequencies up to 4 MHz
D Integrated Flash Memory Eliminates Need for
External EEPROM
D 24 Memory-Mapped I/O Pins
D Supports Two Serial Communication
Protocols
– Two-Wire SMBus v1.1 Interface
– Single-Wire HDQ Interface
D Package: 38-Pin TSSOP (DBT)
D Complete Integrated Development
Environment
APPLICATIONS
D
Battery Management
D Gas Gauges
DESCRIPTION
The Texas Instruments bq8015 Cool-GG
programmable battery management IC is the next in a
series of advanced, high-performance, reduced-
instruction-set-CPU (RISC) integrated circuits for
battery management and gas-gauge applications. In a
single CMOS IC, the bq8015 combines high-accuracy
analog measurement capabilities with a low-power
high-speed RISC processor, integrated flash memory,
and an array of peripheral and communication ports.
The program flash EPROM allows fast development of
custom implementations, and the low-power analog
peripherals improve accuracy beyond discrete
implementations. In its 38-pin TSSOP package, the
bq8015 can implement a variety of functions in a small
PCB area.
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38
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RC0/AD0
RC1/AD1
RC2/AD2
RC3/AD3
RC4/AD4
RA0
RA1/VOUT
V
DDD
RB
RA2
V
SSD
RA3
RA4
RA5/HDQ
RA6/SMBC
RA7/SMBD
RB0/INT
RB1/EV
V
SSP
V
SSP
RC7/AD7
RC6/AD6
RC5/AD5/CL
K
V
SSA
ROSC
FILT
V
DDA
V
SSA
V
SSD
DSCP
DSCM
MRST
RB7
RB6
RB5
RB4
RB3
RB2
TSSOP PACKAGE
(TOP VIEW)
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.
Cool-GG is a trademark of Texas Instruments.
Copyright 2002, Texas Instruments Incorporated
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.
