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BQ2060A-E619DBQR Datasheet

  • BQ2060A-E619DBQR

  • SBS v1.1-Compliant Gas Gauge IC

  • 46頁(yè)

  • TI

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bq2060A
SBS v1.1-Compliant Gas Gauge IC
Features
>
Provides accurate measurement
of available charge in NiCd,
NiMH, Li-Ion, and lead-acid
batteries
Supports SBS Smart Battery
Data Specification v1.1
Supports the 2-wire SMBus v1.1
interface with PEC or 1-wire
HDQ16
Reports individual cell voltages
Monitors and provides control to
charge and discharge FETs in
Li-Ion protection circuit
Provides 15-bit resolution for
voltage, temperature, and cur-
rent measurements
Measures charge flow using a
V-to-F converter with offset of
less than 16碌V after calibration
Consumes less than 0.5mW oper-
ating
Drives a 4- or 5-segment LED
display for remaining capacity in-
dication
28-pin 150-mil SSOP
General Description
The bq2060A SBS-Compliant Gas
Gauge IC for battery pack or
in-system installation maintains an
accurate record of available charge in
rechargeable batteries. The bq2060A
monitors capacity and other critical
battery parameters for NiCd, NiMH,
Li-Ion, and lead-acid chemistries.
The bq2060A uses a V-to-F converter
with automatic offset error correction
for charge and discharge counting.
For voltage, temperature, and current
reporting, the bq2060A uses an
A-to-D converter. The onboard ADC
also monitors individual cell voltages
in a Li-Ion battery pack and allows
the bq2060A to generate control sig-
nals that may be used in conjunction
with a pack supervisor to enhance
pack safety.
The bq2060A supports the smart bat-
tery data (SBData) commands and
charge-control functions. It communi-
cates data using the system manage-
ment bus (SMBus) 2-wire protocol or
the Benchmarq 1-wire HDQ16 proto-
col. The data available include the
battery鈥檚 remaining capacity, temper-
ature, voltage, current, and remain-
ing run-time predictions. The
bq2060A 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 bq2060A works with an external
EEPROM. The EEPROM stores the
configuration information for the
bq2060A, such as the battery鈥檚 chem-
istry, self-discharge rate, rate com-
pensation factors, measurement cali-
bration, and design voltage and ca-
pacity. The bq2060A uses the pro-
grammable self-discharge rate and
other compensation factors stored in
the EEPROM to accurately adjust re-
maining capacity for use and standby
conditions based on time, rate, and
temperature. The bq2060A also auto-
matically calibrates or learns the true
battery capacity in the course of a dis-
charge cycle from near-full to
near-empty levels.
The REG output regulates the operat-
ing voltage for the bq2060A from the
battery cell stack using an external
JFET.
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Pin Connections
HDQ16
ESCL
ESDA
RBI
REG
V
OUT
V
CC
V
SS
DISP
LED
1
LED
2
LED
3
LED
4
LED
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
SMBC
SMBD
VCELL
4
VCELL
3
VCELL
2
VCELL
1
SR
1
SR
2
SRC
TS
THON
CVON
CFC
DFC
Pin Names
HDQ16
Serial communication
input/output
Serial memory clock
Serial memory data and
address
Register backup input
Regulator output
EEPROM supply output
Supply voltage
Ground
Display control input
LED display segment outputs
DFC
CFC
VON
control
THON
TS
SRC
SR
1
鈥?/div>
SR
2
Discharge FET control
Charge FET control
Cell voltage divider
ESCL
ESDA
Thermistor bias control
Thermistor voltage input
Current sense input
Charge-flow sense resistor
inputs
RBI
REG
V
OUT
V
CC
V
SS
DISP
VCELL
1
鈥?Single-cell voltage inputs
VCELL
4
SMBD
SMBC
SMBus data
SMBus clock
28-Pin 150-mil SSOP
28PN2060.eps
LED
1
鈥?/div>
LED
5
SLUS500A鈥揙CTOBER 2001鈥揜EVISED MAY 2002
1

BQ2060A-E619DBQR 產(chǎn)品屬性

  • 1

  • 集成電路 (IC)

  • PMIC - 電池管理

  • -

  • 燃料，電量檢測(cè)計(jì)/監(jiān)控器

  • 鉛酸，鋰離子，鎳鎘，鎳氫

  • 2.7 V ~ 3.7 V

  • -20°C ~ 70°C

  • 表面貼裝

  • 28-SSOP（0.154"，3.90mm 寬）

  • 28-SSOP/QSOP

  • Digi-Reel®

  • 296-25918-6

BQ2060A-E619DBQR相關(guān)型號(hào)PDF文件下載

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