BQ76925PWR
ActiveANALOG FRONT END FOR 3 TO 6 SERIES LITHIUM-ION CELLS 20-TSSOP -25 TO 85
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BQ76925PWR
ActiveANALOG FRONT END FOR 3 TO 6 SERIES LITHIUM-ION CELLS 20-TSSOP -25 TO 85
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ76925PWR | BQ76925 Series |
|---|---|---|
| Battery Chemistry | Lithium Ion/Polymer | Lithium Ion/Polymer |
| Embedded | - | Yes, MCU, 16-Bit |
| Fault Protection | Over/Under Voltage, Over Temperature, Over Current | Over/Under Voltage, Over Temperature, Over Current |
| Function | Multi-Function Controller | Multi-Function Controller, Battery Monitor |
| Interface | I2C | I2C |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Cells [Max] | 6 | 6 |
| Number of Cells [Min] | 3 | 3 |
| Operating Temperature [Max] | 85 C | 85 C |
| Operating Temperature [Min] | -25 °C | -25 °C |
| Package / Case | 0.173 in | 0.173 in |
| Package / Case | 4.4 mm | 4.4 mm |
| Package / Case | 20-TSSOP | 20-TSSOP, 24-VFQFN Exposed Pad |
| Primary Attributes | - | 6 - 26.4 V |
| Primary Attributes | - | 3 - 4.2 V |
| Secondary Attributes | - | On-Board LEDs |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 20-TSSOP | 20-TSSOP, 24-VQFN (4x4) |
| Type | - | Power Management |
| Utilized IC / Part | - | BQ76925, MSP430F2122 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Arrow Electronics | N/A | 2000 | $ 0.84 | |
| DigiKey | N/A | 1 | $ 1.97 | |
| 10 | $ 1.45 | |||
| 25 | $ 1.32 | |||
| 100 | $ 1.18 | |||
| 250 | $ 1.11 | |||
| 500 | $ 1.07 | |||
| 1000 | $ 1.03 | |||
| 2000 | $ 0.90 | |||
| Digikey | Cut Tape (CT) | 1 | $ 2.15 | |
| 10 | $ 1.93 | |||
| 25 | $ 1.82 | |||
| 100 | $ 1.55 | |||
| 250 | $ 1.46 | |||
| 500 | $ 1.27 | |||
| 1000 | $ 1.06 | |||
| Digi-Reel® | 1 | $ 2.15 | ||
| 10 | $ 1.93 | |||
| 25 | $ 1.82 | |||
| 100 | $ 1.55 | |||
| 250 | $ 1.46 | |||
| 500 | $ 1.27 | |||
| 1000 | $ 1.06 | |||
| Tape & Reel (TR) | 2000 | $ 0.90 | ||
| Mouser Electronics | N/A | 1 | $ 1.97 | |
| 10 | $ 1.33 | |||
| 100 | $ 1.18 | |||
| 250 | $ 1.12 | |||
| 500 | $ 1.07 | |||
| 1000 | $ 1.04 | |||
| 2000 | $ 0.90 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.61 | |
| 100 | $ 1.33 | |||
| 250 | $ 0.96 | |||
| 1000 | $ 0.72 | |||
BQ76925 Series
Analog front end for 3 to 6 series lithium-ion cells
| Part | Battery Chemistry | Operating Temperature [Min] | Operating Temperature [Max] | Fault Protection | Package / Case | Package / Case | Package / Case | Supplier Device Package | Function | Number of Cells [Min] | Number of Cells [Max] | Mounting Type | Interface | Embedded | Utilized IC / Part | Supplied Contents | Secondary Attributes | Primary Attributes [Max] | Primary Attributes [Min] | Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ76925PWR | Lithium Ion/Polymer | -25 °C | 85 C | Over Current, Over Temperature, Over/Under Voltage | 0.173 in | 4.4 mm | 20-TSSOP | 20-TSSOP | Multi-Function Controller | 3 | 6 | Surface Mount | I2C | |||||||
Texas Instruments BQ76925RGER | Lithium Ion/Polymer | -25 °C | 85 C | Over Current, Over Temperature, Over/Under Voltage | 24-VFQFN Exposed Pad | 24-VQFN (4x4) | Multi-Function Controller | 3 | 6 | Surface Mount | I2C | |||||||||
Texas Instruments BQ76925EVM | Battery Monitor | Yes, MCU, 16-Bit | BQ76925, MSP430F2122 | Board(s) | On-Board LEDs | 6 Cells, 26.4 V | 3 Cells, 4.2 V | Power Management | ||||||||||||
Texas Instruments BQ76925RGET | Lithium Ion/Polymer | -25 °C | 85 C | Over Current, Over Temperature, Over/Under Voltage | 24-VFQFN Exposed Pad | 24-VQFN (4x4) | Multi-Function Controller | 3 | 6 | Surface Mount | I2C |
Description
General part information
BQ76925 Series
The BQ76925 host-controlled analog front end (AFE) is part of a complete pack monitoring, balancing, and protection system for 3-, 4-, 5-, or 6-series cell li-ion and li-polymer batteries. The BQ76925 device allows a host controller to monitor individual cell voltages, pack current and temperature easily. The Host may use this information to determine unsafe or faulty operating conditions such as overvoltage, undervoltage, overtemperature, overcurrent, cell imbalance, state of charge, and state of health conditions.
Cell input voltages are level-shifted, multiplexed, scaled, and output for measurement by a host ADC. A dedicated pin provides a low-drift calibrated reference voltage to enable accurate measurements.
The voltage across an external-sense resistor is amplified and output to a host ADC for both charge and discharge current measurements. Two gain settings enable operation with a variety of sense resistor values over a wide range of pack currents.
Documents
Technical documentation and resources