The Texas Instruments BQ34Z110PWR is a battery monitor IC from the Impedance Track™ series, purpose-built for lead-acid chemistries. It reports state-of-charge, voltage, and temperature over an HDQ or I²C bus to a host controller. The -40°C to 85°C operating range and surface-mount 14-TSSOP package make it a natural fit for industrial backup-power systems, UPS battery packs, telecom rectifiers, and outdoor solar-storage monitors where the battery chemistry is fixed to lead-acid.
TI BQ34Z110PWR Impedance Track™ Lead-Acid Battery Monitor
MPNBQ34Z110PWR
End of Life
Texas Instruments BQ34Z110PWR, Impedance Track™ Series, Battery Monitor, Lead Acid, HDQ/I²C Interface, -40°C to 85°C, 14-TSSOP Package.
$6.75Ref. price · indicative, final on quote
Packaging14-TSSOP (0.173", 4.40mm Width)
RoHSROHS3 Compliant
SeriesImpedance Track™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | Impedance Track™ |
| Mounting | Surface Mount |
| Interface | HDQ, I²C |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Battery Monitor |
| Case | 14-TSSOP (0.173\", 4.40mm Width) |
| Battery chemistry | Lead Acid |
Product details
Frequently asked questions
What interface does BQ34Z110PWR support?
It supports both HDQ and I²C interfaces for communication with a host microcontroller.
Is BQ34Z110PWR compatible with lithium batteries?
No. This part is designed for lead-acid chemistry only. For lithium-ion or lithium-polymer applications, consider a different gauge IC such as the BQ79612PAPRQ1 or BQ2084DBT-V143.
What is the equivalent of BQ34Z110PWR?
There is no direct pin-compatible second source for this lead-acid gauge. The peers BQ79612PAPRQ1 and BQ2084DBT-V143 serve different chemistries and interfaces — they are functional alternatives only if your system can switch to Li-ion and a different bus protocol.