BQ24765RUVR
ActiveSMBUS 2-4 CELL BUCK BATTERY CHARGE CONTROLLER WITH INTEGRATED FETS
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BQ24765RUVR
ActiveSMBUS 2-4 CELL BUCK BATTERY CHARGE CONTROLLER WITH INTEGRATED FETS
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Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ24765RUVR | BQ24765 Series |
|---|---|---|
| Battery Chemistry | Multi-Chemistry | Multi-Chemistry |
| Battery Pack Voltage | 19.2 V | 19.2 V |
| Charge Current - Max [Max] | 8.064 A | 8.064 A |
| Current - Charging | Constant - Programmable | Constant - Programmable |
| Fault Protection | Over Current, Over Temperature | Over Current, Over Temperature |
| Interface | I2C | I2C |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Cells [Max] [custom] | 4 | 4 |
| Number of Cells [Min] [custom] | 2 | 2 |
| Operating Temperature [Max] | 125 ¯C | 125 ¯C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Package / Case | 34-VFQFN Exposed Pad | 34-VFQFN Exposed Pad |
| Supplier Device Package | 34-VQFN (7x3.5) | 34-VQFN (7x3.5) |
| Voltage - Supply (Max) [Max] | 24 V | 24 V |
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 | $ 7.33 | |
| 10 | $ 6.62 | |||
| 25 | $ 6.31 | |||
| 100 | $ 5.48 | |||
| 250 | $ 5.24 | |||
| 500 | $ 4.77 | |||
| Digi-Reel® | 1 | $ 7.33 | ||
| 10 | $ 6.62 | |||
| 25 | $ 6.31 | |||
| 100 | $ 5.48 | |||
| 250 | $ 5.24 | |||
| 500 | $ 4.77 | |||
| Tape & Reel (TR) | 3000 | $ 4.00 | ||
| Texas Instruments | LARGE T&R | 1 | $ 6.17 | |
| 100 | $ 5.03 | |||
| 250 | $ 3.95 | |||
| 1000 | $ 3.35 | |||
BQ24765 Series
SMBus 2-4 cell Buck battery charge controller with integrated FETs
| Part | Battery Pack Voltage | Battery Chemistry | Current - Charging | Voltage - Supply (Max) [Max] | Mounting Type | Charge Current - Max [Max] | Interface | Supplier Device Package | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] | Operating Temperature [Max] | Operating Temperature [Min] | Package / Case | Fault Protection |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24765RUVT | 19.2 V | Multi-Chemistry | Constant - Programmable | 24 V | Surface Mount | 8.064 A | I2C | 34-VQFN (7x3.5) | 4 | 2 | 125 ¯C | -40 °C | 34-VFQFN Exposed Pad | Over Current, Over Temperature |
Texas Instruments BQ24765RUVR | 19.2 V | Multi-Chemistry | Constant - Programmable | 24 V | Surface Mount | 8.064 A | I2C | 34-VQFN (7x3.5) | 4 | 2 | 125 ¯C | -40 °C | 34-VFQFN Exposed Pad | Over Current, Over Temperature |
Description
General part information
BQ24765 Series
The bq24765 is a high-efficiency, synchronous battery charger with two integrated 30-mΩ NMOS power MOSFETs, and an integrated input current comparator, offering low component count for space-constraint, multi-chemistry battery charging applications. Input current, charge current, and charge voltage DACs allow for very high regulation accuracies that can be easily programmed by the system power management micro-controller using SMBus. The bq24765 has switching frequency of 700 kHz. The bq24765 charges 2, 3, or 4 series Li+ cells, and is available in a 34-pin, 3.50 mm × 7.00 mm VQFN package.
The bq24765 features Dynamic Power Management (DPM) and input power limiting. These features reduce battery charge current when the input power limit is reached to avoid overloading the AC adaptor when supplying the load and the battery charger simultaneously. A high-accuracy current sense amplifier enables accurate measurement of input current from the AC adapter, allowing monitoring the overall system power. If the adapter current is above the programmed low-power threshold, a signal is sent to host so that the system optimizes its power performance according to what is available from the adapter. An integrated comparator allows monitoring the input current through the current sense amplifier, and indicating when the input current exceeds a programmable threshold limit. The bq24765 features a thermal regulation loop to reduce battery charge current when the Tjlimit is reached. This feature protects internal power FETs from overheating when charging with high current.
The bq24765 is a high-efficiency, synchronous battery charger with two integrated 30-mΩ NMOS power MOSFETs, and an integrated input current comparator, offering low component count for space-constraint, multi-chemistry battery charging applications. Input current, charge current, and charge voltage DACs allow for very high regulation accuracies that can be easily programmed by the system power management micro-controller using SMBus. The bq24765 has switching frequency of 700 kHz. The bq24765 charges 2, 3, or 4 series Li+ cells, and is available in a 34-pin, 3.50 mm × 7.00 mm VQFN package.
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Technical documentation and resources