bq34z1xx General Purpose Gauge Family for Multi-Chemistry Applications

• Termination Criteria
– Li-XX : VTERM, ITERM – Backup: Max V, Max T
• • • • •
RSOC Control Serial Number Manufacturer Name Manufacturer Date Manufacturer Info
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bq34z100 Support
(http://www.ti.com/product/bq34z100)
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bq34z110 (Lead Acid)
Samples: Now Production: Nov 2012
n Series cells
bq34z100
bq78PL900 bq78PL910A bq77908A
Protection and Balancing Solution
Sense Resistor
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bq34z100
Expanded LED System Diagram
bq34z1xx
General Purpose Gauge Family for Multi-Chemistry Applications
bq34z1xx -- Product Goals
• ‘Gauge Only’ solution – No protection, No charge control, No Balancing, etc… • Externally configurable for wide cell voltage range (1S-16S ; 2.5V minimum, but Max 65V) • Very simple data interface…due to Gauge Only • Easy and flexible configuration options
Applications
Power Tools Power Assist, eBike PMR Medical Instruments UPS Backup Remote Powered Systems
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bq34z100
• • • • • • Remaining State of Charge Remaining Capacity Full Charge Capacity Voltage Average Current Temperature • Lifetime Data
– Lifetime Max Temp – Lifetime Max Voltage
PACK +
Protection FETs
Protection and Balancing only required for some chemistries
CE REGIN Optional LED Expander I2C DAT I2C CLK or Alert HDQ or Alert P1 P2 P3/DAT P4/CLK P5/HDQ BAT VEN REG25 P6/TS SRP SRN VSS
One LED System Diagram
PACK +
Protection FETs
Protection and Balancing only required for some chemistries
CE REGIN P1 Alert I2C DAT I2C CLK HDQ P2 P3/DAT P4/CLK P5/HDQ BAT VEN REG25 P6/TS SRP SRN VSS
In Production Now
Benefits
Very simple setup configuration Accurate fuel gauging Independent of protection solution and cell balancing requirements Capable of gauging very high series cell batteries
n Series cells
bq34z100
bq78PL900 bq78PL910A bq77908A
Protection and Balancing Solution
Sense Resistor
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bq34z100
Data Commands
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Thank You
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• Manufacturing Data
– – – – – – – Serial Number FW Version Design Capacity Chemistry Selection Manufacturer Name Manufacturer Date Manufacturer Info (Scratch pad)
Wireless Gas Meter Cloud Server Backup
VoIP Gateway Backup
Industrial
Communication
Remote Data Recorder
Portable X-ray E-Bike
Commercial
Medical
E-Trike AED
Pictures are from Internet for information purpose only
• Support Multiple Chemistry for Primary and Rechargeable
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bq34z1xx , a better alternative for bq2060A
DEVICE
Bat源自文库ery Chemistry
Package Pin Count Dimensions (L x W X H) Memory Type Sense Resistor (mΩ) Algorithm Bus Speed JEITA Charging Temperature Sensor LED
bq34z1xx
Multiple Chemistry
Sample: Dec 2012 Release: Jan 2013
Pictures are from Internet for information purpose only
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bq34z1xx: Multi-Application Gas Gauge
TSSOP 14 6.4mm x 5mm x 1mm Flash External Impedance TrackTM 100 – 400 kHz YES Internal & External YES
bq2060A
NiXX, Li-Ion and PbA
SSOP 28 6.4mm x 9.7mm x 1.10mm None External Coulomb Counting 100kHz No External Yes
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bq34z100
Configuration
• Cell/Stack Data
– – – – – – Design Capacity Design Voltage Cell Scaler (ext divider) Chemistry ID’s Constants Chemistry Selection
Four LED HDQ System Diagram
PACK +
Protection FETs
Protection and Balancing only required for some chemistries
CE REGIN P1 P2 I2C PROG HDQ COMM P3/DAT P4/CLK P5/HDQ VSS BAT VEN REG25 P6/TS SRP SRN VSS
Lead Acid
NiMH, NiCd
Li-Family Host Side
Primary Cells
Released in Q2 2012
Sample: Aug 2012 Release: Nov 2012
Sample: Sep 2012 Release: Nov 2012
Sample: Nov 2012 Release: Dec 2012
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bq34z100 – Li-Ion, Polymer, LiFePO4
Features
Supports Li-Ion, Polymer, LiFePO4 chemistry Capacity Estimation Fuel Gage based on patented Impedance Track Automatic aging Compensation Self-Discharge Compensation Large Capacity Batteries Supported (>65Ahr) High Current Applications Supported (>32A) Suitable for packs 2.5V to ~65V Chemistries and accuracy requirements determine Max V External Thermistor Supported Optional Interfaces Single wire (HDQ) Communications Two-wire (I2C) Communications 1 or 4 LED display – More with expander chip Configurable Warning signal Packaged in 14 pin TSSOP
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bq34z1xx Family of 1S-16S Gas Gauges
bq34z1xx Gas Gauge Family
bq34z100
bq34z110
bq34z120
bq34z130
bq34140
Li-Ion, LiFePo4
n Series cells
bq34z100
bq78PL900 bq78PL910A bq77908A
Protection and Balancing Solution
Sense Resistor
ALERT
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bq34z100