bq34z100-G1 Gauge Datasheet

bq34z100-G1 Datasheet PDF, Equivalent


Part Number

bq34z100-G1

Description

Wide Range Fuel Gauge

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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bq34z100-G1
SLUSBZ5B – JANUARY 2015 – REVISED JULY 2016
bq34z100-G1 Wide Range Fuel Gauge with Impedance Track™ Technology
Check for Samples: bq34z100-G1
1 Features
1 Supports Li-Ion, LiFePO4, PbA, NiMH, and NiCd
Chemistries
• Capacity Estimation Using Patented Impedance
Track™ Technology for Batteries from 3 V to 65 V
– Aging Compensation
– Self-Discharge Compensation
• Supports Battery Capacities up to 29 Ah with
Standard Configuration Options
• Supports Charge and Discharge Currents up to
32 A with Standard Configuration Options
• External NTC Thermistor Support
• Supports Two-Wire I2C™ and HDQ Single-Wire
Communication Interfaces with Host System
• SHA-1/HMAC Authentication
• One- or Four-LED Direct Display Control
• Five-LED and Higher Display Through Port
Expander
• Reduced Power Modes (Typical Battery Pack
Operating Range Conditions)
– Normal Operation: < 145-µA Average
– Sleep: < 84-µA Average
– Full Sleep: < 30-µA Average
• Package: 14-Pin TSSOP
2 Applications
• Light Electric Vehicles
• Power Tools
• Medical Instrumentation
• Uninterruptible Power Supplies (UPS)
• Mobile Radios
3 Description
The bq34z100-G1 device is an Impedance Track™
fuel gauge for Li-Ion, PbA, NiMH, and NiCd batteries,
and works independently of battery series-cell
configurations. Batteries from 3 V to 65 V can be
easily supported through an external voltage
translation circuit that is controlled automatically to
reduce system power consumption.
The bq34z100-G1 device provides several interface
options, including an I2C slave, an HDQ slave, one or
four direct LEDs, and an ALERT output pin.
Additionally, the bq34z100-G1 provides support for
an external port expander for more than four LEDs.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
bq34z100-G1
TSSOP (14)
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
PACK+
Simplified Schematic
Protection
FETs
I2C
PROG
HDQ COMM
CE BAT
REGIN
VEN
P1 REG25
P2 P6/TS
P3/DAT SRP
P4/CLK SRN
P5/HDQ VSS
**
**
Protection
and
Balancing
Solution
bq77908
or
bq77910
Sense
Resistor
ALERT
PACK–
** optional to reduce divider power consumption
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

bq34z100-G1
bq34z100-G1
SLUSBZ5B – JANUARY 2015 – REVISED JULY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings ............................................................ 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics: Power-On Reset .............. 5
6.6 Electrical Characteristics: LDO Regulator................. 5
6.7 Electrical Characteristics: Internal Temperature
Sensor Characteristics............................................... 5
6.8 Electrical Characteristics: Low-Frequency Oscillator 5
6.9 Electrical Characteristics: High-Frequency
Oscillator .................................................................... 6
6.10 Electrical Characteristics: Integrating ADC
(Coulomb Counter) Characteristics............................ 6
6.11 Electrical Characteristics: ADC (Temperature and
Cell Measurement) Characteristics............................ 6
6.12 Electrical Characteristics: Data Flash Memory
Characteristics ........................................................... 7
6.13 Timing Requirements: HDQ Communication.......... 7
6.14 Timing Requirements: I2C-Compatible Interface .... 8
6.15 Typical Characteristics ........................................... 9
7 Detailed Description ............................................ 10
7.1 Overview ................................................................. 10
7.2 Functional Block Diagram ...................................... 11
7.3 Feature Description................................................. 12
7.4 Device Functional Modes........................................ 43
7.5 Power Control ......................................................... 43
8 Application and Implementation ........................ 46
8.1 Application Information............................................ 46
8.2 Typical Applications ................................................ 46
9 Power Supply Recommendations...................... 54
10 Layout................................................................... 55
10.1 Layout Guidelines ................................................ 55
10.2 Layout Example ................................................... 55
11 Device and Documentation Support ................. 58
11.1 Community Resources.......................................... 58
11.2 Trademarks ........................................................... 58
11.3 Electrostatic Discharge Caution ............................ 58
11.4 Glossary ................................................................ 58
12 Mechanical, Packaging, and Orderable
Information ........................................................... 58
4 Revision History
Changes from Revision A (July 2015) to Revision B
Page
• Changed Absolute Maximum Ratings ................................................................................................................................... 4
• Changed Recommended Operating Conditions .................................................................................................................... 4
• Changed SLEEP Mode ........................................................................................................................................................ 43
• Changed FULL SLEEP Mode............................................................................................................................................... 43
• Changed Flash Updates....................................................................................................................................................... 45
• Changed STEP 3.................................................................................................................................................................. 50
2 Submit Documentation Feedback
Copyright © 2015–2016, Texas Instruments Incorporated
Product Folder Links: bq34z100-G1


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq34z100-G1 SLUSBZ5B – JAN UARY 2015 – REVISED JULY 2016 bq34z10 0-G1 Wide Range Fuel Gauge with Impedan ce Track™ Technology Check for Sample s: bq34z100-G1 1 Features •1 Support s Li-Ion, LiFePO4, PbA, NiMH, and NiCd Chemistries • Capacity Estimation Usi ng Patented Impedance Track™ Technolo gy for Batteries from 3 V to 65 V – A ging Compensation – Self-Discharge Co mpensation • Supports Battery Capacit ies up to 29 Ah with Standard Configura tion Options • Supports Charge and Di scharge Currents up to 32 A with Standa rd Configuration Options • External N TC Thermistor Support • Supports Two- Wire I2C™ and HDQ Single-Wire Communi cation Interfaces with Host System • SHA-1/HMAC Authentication • One- or F our-LED Direct Display Control • Five -LED and Higher Display Through Port Ex pander • Reduced Power Modes (Typical Battery Pack Operating Range Conditions) – Normal Operation: < 145-µA Average – Sleep: < 84-µA A.
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