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DS2740BU+T&R

Description
battery management high-precision coulomb counter
CategoryPower/power management    The power supply circuit   
File Size215KB,16 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric Compare View All

DS2740BU+T&R Overview

battery management high-precision coulomb counter

DS2740BU+T&R Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeSOIC
package instructionTSSOP, TSSOP8,.19
Contacts8
Reach Compliance Codecompli
ECCN codeEAR99
Factory Lead Time6 weeks
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeS-PDSO-G8
JESD-609 codee3
length3 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP8,.19
Package shapeSQUARE
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply3/5 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply current (Isup)0.085 mA
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)2.7 V
Nominal supply voltage (Vsup)3.5 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3 mm
DS2740
High-Precision Coulomb Counter
www.maxim-ic.com
FEATURES
15-Bit Bidirectional Current Measurement
(DS2740U)
1.56μV LSB and ±51.2mV Dynamic
Range
78μA LSB and ±2.56A Dynamic
Range with External 20mΩ Sense
Resistor (R
SNS
)
156μA LSB and ±5.12A Dynamic
Range with External 10mΩ Sense
Resistor (R
SNS
)
13-Bit Bidirectional Current Measurement
(DS2740BU)
6.25μV LSB and ±51.2mV Dynamic
Range
312μA LSB and ±2.56A Dynamic
Range with External 20mΩ Sense
Resistor (R
SNS
)
625μA LSB and ±5.12A Dynamic
Range with External 10mΩ Sense
Resistor (R
SNS
)
Analog Input Filter (IS1, IS2) Extends
Dynamic Range for Pulse-Load
Applications
Current Accumulation Register
Resolution
6.25μVhr (Both DS2740U and
DS2740BU)
0.3125mAhr with External 20mΩ
R
SNS
0.6250mAhr with External 10mΩ
R
SNS
Dallas 1-Wire
®
Interface
Unique 64-Bit Device Address
Standard and Overdrive Timings
(OVD)
Low Power Consumption:
Active Current: 65μA max
Sleep Current: 1μA max
1-Wire is a registered trademark of Dallas Semiconductor.
PIN CONFIGURATION
OVD
PIO
SNS
IS2
1
2
3
4
8
7
6
5
V
DD
DQ
V
SS
IS1
μMAX
(DS2740U, DS2740BU)
See Table 1 for Ordering Information.
See Table 2 for Detailed Pin Descriptions.
PIN DESCRIPTION
OVD - 1-Wire Bus Speed Select
PIO - Programmable I/O Pin
SNS - Sense Resistor Input
IS2 - Current-Sense Input
IS1 - Current-Sense Input
V
SS
- Device Ground, Current-Sense Resistor
Return
DQ - Data Input/Output
V
DD
- Power-Supply Input (2.7V to 5.5V)
1 of 16
051805

DS2740BU+T&R Related Products

DS2740BU+T&R DS2740BU+ DS2740U+ DS2740BU+T&R; DS2740U+T&R;
Description battery management high-precision coulomb counter battery management high-precision coulomb counter battery management high-precision coulomb counter IC CURRENT GAUGE(15BIT) 8UMAX IC CURRENT GAUGE(15BIT) 8UMAX
Is it lead-free? Lead free Lead free Lead free - -
Is it Rohs certified? conform to conform to conform to - -
Maker Maxim Maxim Maxim - -
Parts packaging code SOIC SOIC SOIC - -
package instruction TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.19 - -
Contacts 8 8 8 - -
Reach Compliance Code compli compli compli - -
ECCN code EAR99 EAR99 EAR99 - -
Factory Lead Time 6 weeks 6 weeks 9 weeks - -
Adjustable threshold NO NO NO - -
Analog Integrated Circuits - Other Types POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT - -
JESD-30 code S-PDSO-G8 S-PDSO-G8 S-PDSO-G8 - -
JESD-609 code e3 e3 e3 - -
length 3 mm 3 mm 3 mm - -
Humidity sensitivity level 1 1 1 - -
Number of channels 1 1 1 - -
Number of functions 1 1 1 - -
Number of terminals 8 8 8 - -
Maximum operating temperature 85 °C 85 °C 85 °C - -
Minimum operating temperature -40 °C -40 °C -40 °C - -
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY - -
encapsulated code TSSOP TSSOP TSSOP - -
Encapsulate equivalent code TSSOP8,.19 TSSOP8,.19 TSSOP8,.19 - -
Package shape SQUARE SQUARE SQUARE - -
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH - -
Peak Reflow Temperature (Celsius) 260 260 260 - -
power supply 3/5 V 3/5 V 3/5 V - -
Certification status Not Qualified Not Qualified Not Qualified - -
Maximum seat height 1.1 mm 1.1 mm 1.1 mm - -
Maximum supply current (Isup) 0.085 mA 0.085 mA 0.085 mA - -
Maximum supply voltage (Vsup) 5.5 V 5.5 V 5.5 V - -
Minimum supply voltage (Vsup) 2.7 V 2.7 V 2.7 V - -
Nominal supply voltage (Vsup) 3.5 V 3.5 V 3.5 V - -
surface mount YES YES YES - -
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL - -
Terminal surface Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) - -
Terminal form GULL WING GULL WING GULL WING - -
Terminal pitch 0.65 mm 0.65 mm 0.65 mm - -
Terminal location DUAL DUAL DUAL - -
Maximum time at peak reflow temperature 30 30 30 - -
width 3 mm 3 mm 3 mm - -
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