BQ20Z40PW
NRNDSBS COMPLIANT GAS GAUGE WITH IMPEDANCE TRACK TECHNOLOGY FOR USE WITH BQ29330
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BQ20Z40PW
NRNDSBS COMPLIANT GAS GAUGE WITH IMPEDANCE TRACK TECHNOLOGY FOR USE WITH BQ29330
Technical Specifications
Parameters and characteristics for this part
| Specification | BQ20Z40PW |
|---|---|
| Battery Chemistry | Lithium Ion/Polymer |
| Fault Protection | Over Temperature, Over/Under Voltage, Short Circuit, Over Current |
| Function | Battery Monitor |
| Mounting Type | Surface Mount |
| Number of Cells [Max] | 4 |
| Number of Cells [Min] | 2 cells |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 20-TSSOP |
| Package / Case [x] | 0.173 in |
| Package / Case [y] | 4.4 mm |
| Supplier Device Package | 20-TSSOP |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 70 | $ 16.91 | |
| Texas Instruments | TUBE | 1 | $ 17.27 | |
| 100 | $ 15.09 | |||
| 250 | $ 11.63 | |||
| 1000 | $ 10.41 | |||
Description
General part information
BQ20Z40-R1 Series
The bq20z40-R1 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z40-R1 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using its integrated high-performance analog peripherals. Thebq20z40-R1 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack, and reports the information to the system host controller over a serial-communication bus. It is designed to work with the bq29330 analog front-end (AFE) protection IC to maximize functionality and safety, while minimizing external component count and cost in smart battery circuits.
The Impedance Track™ technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables the remaining capacity to be calculated with discharge rate, temperature, and cell aging, which are all accounted for during each stage of every cycle.
The bq20z40-R1 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z40-R1 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using its integrated high-performance analog peripherals. Thebq20z40-R1 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack, and reports the information to the system host controller over a serial-communication bus. It is designed to work with the bq29330 analog front-end (AFE) protection IC to maximize functionality and safety, while minimizing external component count and cost in smart battery circuits.
Documents
Technical documentation and resources