BQ27545YZFT-G1
ActiveSINGLE CELL, PACK SIDE, IMPEDANCE TRACK™ FUEL GAUGE
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BQ27545YZFT-G1
ActiveSINGLE CELL, PACK SIDE, IMPEDANCE TRACK™ FUEL GAUGE
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Technical Specifications
Parameters and characteristics for this part
| Specification | BQ27545YZFT-G1 |
|---|---|
| Battery Chemistry | Lithium Ion |
| Function | Battery Monitor |
| Interface | I2C, HDQ |
| Mounting Type | Surface Mount |
| Number of Cells | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 15-UFBGA, DSBGA |
| Supplier Device Package | 15-DSBGA |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 7.45 | |
| 10 | $ 6.73 | |||
| 25 | $ 6.41 | |||
| 100 | $ 5.57 | |||
| Digi-Reel® | 1 | $ 7.45 | ||
| 10 | $ 6.73 | |||
| 25 | $ 6.41 | |||
| 100 | $ 5.57 | |||
| Tape & Reel (TR) | 250 | $ 3.87 | ||
| Texas Instruments | SMALL T&R | 1 | $ 5.70 | |
| 100 | $ 4.65 | |||
| 250 | $ 3.65 | |||
| 1000 | $ 3.10 | |||
BQ27545-G1 Series
Single cell, pack side, Impedance Track™ fuel gauge
| Part | Number of Cells | Operating Temperature [Max] | Operating Temperature [Min] | Interface | Package / Case | Function | Battery Chemistry | Mounting Type | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ27545YZFT-G1 | 1 | 85 °C | -40 °C | HDQ, I2C | 15-UFBGA, DSBGA | Battery Monitor | Lithium Ion | Surface Mount | 15-DSBGA |
Description
General part information
BQ27545-G1 Series
The bq27545-G1 Li-ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system microcontroller firmware development for accurate battery fuel gauging. The bq27545-G1 resides within the battery pack or on the system’s main-board with an embedded battery (non removable).
The bq27545-G1 uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (minimum), battery voltage (mV), and temperature (°C). It also provides detections for internal short or tab disconnection events.
The bq27545-G1 also features integrated support for secure battery pack authentication, using the SHA-1/HMAC authentication algorithm.
Documents
Technical documentation and resources