bq34z110 Gauge Datasheet

bq34z110 Datasheet PDF, Equivalent


Part Number

bq34z110

Description

Wide Range Fuel Gauge

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download bq34z110 Datasheet


bq34z110
Not Recommended For New Designs
bq34z110
www.ti.com
SLUSB55B – JUNE 2012 – REVISED MAY 2013
Wide Range Fuel Gauge with Impedance Track™ for Lead-Acid Batteries
Check for Samples: bq34z110
FEATURES
1
23 Supports Lead-Acid Chemistries
• Capacity Estimation Using Patented
Impedance Track™ Technology for Batteries
from 4 V to 64 V
– Aging Compensation
– Self-Discharge Compensation
• Supports Battery Capacities Above 65 Ahr
• Supports Charge and Discharge Currents
Above 32 A
• 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: < 140 µA Average
– Sleep: < 64 µA Average
– Full Sleep: < 19 µA Average
• Package: 14-Pin TSSOP
APPLICATIONS
• Light Electric Vehicles
• Power Tools
• Medical Instrumentation
• Uninterruptible Power Supplies (UPS)
• Mobile Radios
DESCRIPTION
The Texas Instruments bq34z110 is a fuel gauge solution that works independently of battery series-cell
configurations, and supports Lead-Acid battery chemistries. Batteries from 4 V to 64 V can be supported through
an external voltage translation circuit that can be controlled automatically to reduce system power consumption.
The bq34z110 device provides several interface options, including an I2C slave, an HDQ slave, one or four direct
LEDs, and an Alert output pin. Additionally, the bq34z110 provides support for an external port expander for
more than four LEDs.
TA
–40°C to 85°C
ORDERING INFORMATION
PART NUMBER
PACKAGE
(TSSOP)
TUBE
bq34z110PW or
bq34z110PWR
14-Pin
PW
TAPE AND REEL
PWR
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Impedance Track is a trademark of Texas Instruments.
2
I2C is a trademark of NXP B.V Corporation.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012–2013, Texas Instruments Incorporated

bq34z110
bq34z110
Not Recommended For New Designs
SLUSB55B – JUNE 2012 – REVISED MAY 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
PINOUT DIAGRAM
PIN DETAILS
P2 1
14 P3/SDA
VEN 2
13 P4/SCL
P1 3
12 P5/HDQ
BAT 4
11 P6/TS
CE 5
10 SRN
REGIN 6
9 SRP
REG25 7
8 VSS
Figure 1. bq34z110 Pinout Diagram
Table 1. bq34z110 External Pin Functions
PIN NAME
P2
VEN
PIN
NUMBER
1
2
P1
BAT
CE
REGIN
REG25
VSS
SRP
3
4
5
6
7
8
9
SRN
P6/TS
P5/HDQ
P4/SCL
10
11
12
13
P3/SDA
14
TYPE (1)
DESCRIPTION
O LED 2 or Not Used (connect to Vss)
O
Active High Voltage Translation Enable. This signal is optionally used to switch the input voltage
divider on/off to reduce the power consumption (typ 45 µA) of the divider network.
O
LED 1 or Not Used (connect to Vss). This pin is also used to drive an LED for single-LED mode.
Use a small signal N-FET (Q1) in series with the LED as shown on Figure 9.
I Translated Battery Voltage Input
I Chip Enable. Internal LDO is disconnected from REGIN when driven low.
P Internal integrated LDO input. Decouple with a 0.1-µF ceramic capacitor to Vss.
P 2.5-V Output voltage of the internal integrated LDO. Decouple with 1-µF ceramic capacitor to Vss.
P Device ground
I
Analog input pin connected to the internal coulomb-counter peripheral for integrating a small
voltage between SRP and SRN where SRP is nearest to the BAT– connection.
I
Analog input pin connected to the internal coulomb-counter peripheral for integrating a small
voltage between SRP and SRN where SRN is nearest to the PACK– connection.
I Pack thermistor voltage sense (use 103AT-type thermistor)
I/O Open drain HDQ Serial communication line (slave)
I
Slave I2C serial communication clock input. Use with a 10-K pull-up resistor (typical). Also used
for LED 4 in the four-LED mode.
I/O
Open drain slave I2C serial communication data line. Use with a 10-kΩ pull-up resistor (typical).
Also used for LED 3 in the four-LED mode.
(1) I = Input, O = Output, P = Power, I/O = Digital input/output
2 Submit Documentation Feedback
Product Folder Links: bq34z110
Copyright © 2012–2013, Texas Instruments Incorporated


Features Not Recommended For New Designs bq34z11 0 www.ti.com SLUSB55B – JUNE 2012 REVISED MAY 2013 Wide Range Fuel Ga uge with Impedance Track™ for Lead-Ac id Batteries Check for Samples: bq34z1 10 FEATURES 1 •23 Supports Lead-Acid Chemistries • Capacity Estimation Us ing Patented Impedance Track™ Technol ogy for Batteries from 4 V to 64 V – Aging Compensation – Self-Discharge C ompensation • Supports Battery Capaci ties Above 65 Ahr • Supports Charge a nd Discharge Currents Above 32 A • Ex ternal NTC Thermistor Support • Suppo rts Two-Wire I2C™ and HDQ Single-Wire Communication Interfaces with Host Sys tem • SHA-1, HMAC Authentication • One- or Four-LED Direct Display Control • Five-LED and Higher Display Throug h Port Expander • Reduced Power Mode s (Typical Battery Pack Operating Range Conditions) – Normal Operation: < 14 0 µA Average – Sleep: < 64 µA Avera ge – Full Sleep: < 19 µA Average • Package: 14-Pin TSSOP APPLICATIONS • Light Electric Vehicles • Power Tools • Medical Instrumentation • Unin.
Keywords bq34z110, datasheet, pdf, etcTI, Wide, Range, Fuel, Gauge, q34z110, 34z110, 4z110, bq34z11, bq34z1, bq34z, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)