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BQ2000TPW

Description
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
Categorysemiconductor    Analog mixed-signal IC   
File Size670KB,18 Pages
ManufacturerETC
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BQ2000TPW Overview

1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8

BQ2000TPW Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals8
Maximum operating temperature70 Cel
Minimum operating temperature-20 Cel
Maximum supply/operating voltage6 V
Minimum supply/operating voltage4 V
Rated supply voltage5 V
Processing package descriptionGREEN, TSSOP-8
Lead-freeYes
EU RoHS regulationsYes
China RoHS regulationsYes
stateACTIVE
packaging shapeRECTANGULAR
Package SizeSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
surface mountYes
Terminal formGULL WING
Terminal spacing0.6500 mm
terminal coatingNICKEL PALLADIUM GOLD
Terminal locationDUAL
Packaging MaterialsPLASTIC/EPOXY
Temperature levelOTHER
Number of channels1
Adjustable thresholdYes
Analog IC other typesPOWER SUPPLY SUPPORT CKT
bq2000T
Programmable Multi-Chemistry
Fast-Charge Management IC
Features
Safe management of fast
charge for NiCd, NiMH, or
Li-Ion battery packs
High-frequency switching
controller for efficient and
simple charger design
Pre-charge qualification for
detecting shorted, damaged,
or overheated cells
Fast-charge termination by
D ∆Τ/∆
t m i n i m u m c u r r e n t
(Li-Ion), maximum tempera-
ture, and maximum charge
time
Selectable top-off mode for
achieving maximum capacity
in NiMH batteries
Programmable trickle-charge
mode for reviving deeply dis-
charged batteries and for
post-charge maintenance
Built-in battery removal and
insertion detection
Sleep mode for low power
consumption
General Description
The bq2000T is a programmable,
monolithic IC for fast-charge man-
a g e m e n t o f n i c ke l c a d m i u m
( N i C d ) , n i c ke l m e t a l - h y d r i d e
(NiMH), or lithium-ion (Li-Ion)
batteries
in
single-
or
multi-chemistry applications. The
bq2000T detects the battery chem-
istry and proceeds with the opti-
mal charging and termination al-
gorithms. This process eliminates
undesirable undercharged or
overcharged conditions and allows
accurate and safe termination of
fast charge.
Depending on the chemistry, the
bq2000T provides a number of
charge termination criteria:
n
For safety, the bq2000T inhibits
fast charge until the battery volt-
age and temperature are within
user-defined limits. If the battery
voltage is below the low-voltage
threshold, the bq2000T uses
trickle-charge to condition the
battery. For NiMH batteries, the
bq2000T provides an optional
top-off charge to maximize the
battery capacity.
The integrated high-frequency
comparator allows the bq2000T to
be the basis for a complete,
high-efficiency power-conversion
circuit for both nickel-based and
lithium-based chemistries.
Rate of temperature rise,
D ∆Τ/∆
t
(for NiCd and NiMH)
Minimum charging current (for
Li-Ion)
Maximum temperature
Maximum charge time
n
n
n
Pin Connections
Pin Names
SNS
Current-sense
input
System ground
Charge-status
output
Battery-voltage
input
TS
RC
V
CC
MOD
Temperature-sense
input
Timer-program
input
Supply-voltage
input
Modulation-control
output
SNS
VSS
LED
BAT
1
2
3
4
8
7
6
5
MOD
VCC
RC
TS
V
SS
LED
BAT
8-Pin DIP or Narrow SOIC
or TSSOP
PN-2000.eps
SLUS149B–FEBRUARY 2001
1

BQ2000TPW Related Products

BQ2000TPW BQ2000TPN-B5 BQ2000TPWR BQ2000T BQ2000TSN-B5 BQ2000TSN-B5TR
Description 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
Number of functions 1 1 1 1 1 1
Number of terminals 8 8 8 8 8 8
Maximum operating temperature 70 Cel 70 Cel 70 Cel 70 Cel 70 Cel 70 Cel
Minimum operating temperature -20 Cel -20 Cel -20 Cel -20 Cel -20 Cel -20 Cel
Maximum supply/operating voltage 6 V 6 V 6 V 6 V 6 V 6 V
Minimum supply/operating voltage 4 V 4 V 4 V 4 V 4 V 4 V
Rated supply voltage 5 V 5 V 5 V 5 V 5 V 5 V
Processing package description GREEN, TSSOP-8 GREEN, TSSOP-8 GREEN, TSSOP-8 GREEN, TSSOP-8 0.150 INCH, GREEN, SOIC-8 0.150 INCH, GREEN, SOIC-8
Lead-free Yes Yes Yes Yes Yes Yes
EU RoHS regulations Yes Yes Yes Yes Yes Yes
China RoHS regulations Yes Yes Yes Yes Yes Yes
state ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE
packaging shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package Size SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE SMALL OUTLINE
surface mount Yes Yes Yes Yes Yes Yes
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal spacing 0.6500 mm 0.6500 mm 0.6500 mm 0.6500 mm 1.27 mm 1.27 mm
terminal coating NICKEL PALLADIUM GOLD NICKEL PALLADIUM GOLD NICKEL PALLADIUM GOLD NICKEL PALLADIUM GOLD NICKEL PALLADIUM GOLD NICKEL PALLADIUM GOLD
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL
Packaging Materials PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
Temperature level OTHER OTHER OTHER OTHER OTHER OTHER
Number of channels 1 1 1 1 1 1
Adjustable threshold Yes Yes Yes Yes Yes Yes
Analog IC other types POWER SUPPLY SUPPORT CKT POWER SUPPLY SUPPORT CKT POWER SUPPLY SUPPORT CKT POWER SUPPLY SUPPORT CKT POWER SUPPLY SUPPORT CKT POWER SUPPLY SUPPORT CKT
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