BQ24745EVM
ActiveBQ24745EVM
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BQ24745EVM
ActiveBQ24745EVM
Deep-Dive with AI
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | BQ24745EVM | BQ24745 Series |
|---|---|---|
| Battery Chemistry | - | Multi-Chemistry |
| Battery Pack Voltage | - | 19.2 V |
| Charge Current - Max | - | 8.064 A |
| Current - Charging | - | Constant - Programmable |
| Function | Battery Charger | Battery Charger |
| Interface | - | I2C |
| Mounting Type | - | Surface Mount |
| Number of Cells | - | 4 |
| Number of Cells | - | 2 |
| Operating Temperature | - | 125 ¯C |
| Operating Temperature | - | -40 °C |
| Package / Case | - | 28-VFQFN Exposed Pad |
| Supplied Contents | Board(s) | Board(s) |
| Supplier Device Package | - | 28-VQFN (5x5) |
| Type | Power Management | Power Management |
| Voltage - Supply (Max) | - | 24 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
BQ24745 Series
SMBus up to 4 cell level 2 Buck battery chager to support Multiple battery chemistries
| Part | Mounting Type | Charge Current - Max [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] | Battery Pack Voltage | Package / Case | Interface | Current - Charging | Voltage - Supply (Max) [Max] | Battery Chemistry | Type | Function | Supplied Contents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24745RHDT | Surface Mount | 8.064 A | 125 ¯C | -40 °C | 28-VQFN (5x5) | 4 | 2 | 19.2 V | 28-VFQFN Exposed Pad | I2C | Constant - Programmable | 24 V | Multi-Chemistry | |||
Texas Instruments BQ24745EVM | Power Management | Battery Charger | Board(s) | |||||||||||||
Texas Instruments BQ24745RHDR | Surface Mount | 8.064 A | 125 ¯C | -40 °C | 28-VQFN (5x5) | 4 | 2 | 19.2 V | 28-VFQFN Exposed Pad | I2C | Constant - Programmable | 24 V | Multi-Chemistry |
Description
General part information
BQ24745 Series
The bq24745 is a high-efficiency, synchronous battery charger with an integrated input-current comparator, offering low component count for space-constrained, multi-chemistry battery-charging applications. The input-current, charge-current, and charge-voltage DACs allow very high regulation accuracies that can be easily programmed by the system power-management microcontroller using the SMBus interface. The bq24745 charges two, three, or four series Li+ cells, and is available in a 28-pin, 5-mm × 5 mmQFN package.
The bq24745 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 highly accurate current-sense amplifier enables precise 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 performance to the power available from the adapter. An integrated comparator monitors the input current through the current-sense amplifier, and indicates when the input current exceeds a programmable threshold limit.
The bq24745 is a high-efficiency, synchronous battery charger with an integrated input-current comparator, offering low component count for space-constrained, multi-chemistry battery-charging applications. The input-current, charge-current, and charge-voltage DACs allow very high regulation accuracies that can be easily programmed by the system power-management microcontroller using the SMBus interface. The bq24745 charges two, three, or four series Li+ cells, and is available in a 28-pin, 5-mm × 5 mmQFN package.
Documents
Technical documentation and resources