BQ25628ERYKR
ActiveI²C CONTROLLED SINGLE-CELL 2-A BUCK BATTERY CHARGER WITH UP TO 18-V INPUT AND ADC
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BQ25628ERYKR
ActiveI²C CONTROLLED SINGLE-CELL 2-A BUCK BATTERY CHARGER WITH UP TO 18-V INPUT AND ADC
Technical Specifications
Parameters and characteristics for this part
| Specification | BQ25628ERYKR |
|---|---|
| Battery Chemistry | Lithium Ion/Polymer |
| Charge Current - Max [Max] | 2 A |
| Current - Charging | Constant - Programmable |
| Fault Protection | Over Current, Over Voltage, Short Circuit, Over Temperature |
| Interface | I2C |
| Mounting Type | Surface Mount |
| Number of Cells | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 18-PowerWFQFN |
| Programmable Features | Current, Timer, Voltage |
| Supplier Device Package | 18-WQFN-HR |
| Supplier Device Package [x] | 3 |
| Supplier Device Package [y] | 2.5 |
| Voltage - Supply (Max) [Max] | 18 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| CHIPMALL.COM LIMITED | N/A | 1 | $ 1.86 | |
| 10 | $ 1.65 | |||
| 30 | $ 1.62 | |||
| 100 | $ 1.57 | |||
| DigiKey | N/A | 1 | $ 2.80 | |
| 10 | $ 2.09 | |||
| 25 | $ 1.91 | |||
| 100 | $ 1.71 | |||
| 250 | $ 1.62 | |||
| 500 | $ 1.57 | |||
| 1000 | $ 1.52 | |||
| 3000 | $ 1.46 | |||
| 6000 | $ 1.43 | |||
| Digikey | Cut Tape (CT) | 1 | $ 2.86 | |
| 10 | $ 2.57 | |||
| 25 | $ 2.43 | |||
| 100 | $ 2.11 | |||
| 250 | $ 2.00 | |||
| 500 | $ 1.79 | |||
| 1000 | $ 1.51 | |||
| Digi-Reel® | 1 | $ 2.86 | ||
| 10 | $ 2.57 | |||
| 25 | $ 2.43 | |||
| 100 | $ 2.11 | |||
| 250 | $ 2.00 | |||
| 500 | $ 1.79 | |||
| 1000 | $ 1.51 | |||
| Tape & Reel (TR) | 3000 | $ 1.44 | ||
| 6000 | $ 1.38 | |||
| LCSC | N/A | 1 | $ 1.94 | |
| 10 | $ 1.72 | |||
| 30 | $ 1.69 | |||
| 100 | $ 1.64 | |||
| Mouser Electronics | N/A | 1 | $ 2.80 | |
| 10 | $ 1.91 | |||
| 100 | $ 1.72 | |||
| 250 | $ 1.63 | |||
| 500 | $ 1.57 | |||
| 1000 | $ 1.52 | |||
| 3000 | $ 1.43 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.16 | |
| 100 | $ 1.89 | |||
| 250 | $ 1.33 | |||
| 1000 | $ 1.07 | |||
BQ25628E Series
I²C controlled single-cell 2-A buck battery charger with up to 18-V input and ADC
| Part | Package / Case | Current - Charging | Operating Temperature [Max] | Operating Temperature [Min] | Fault Protection | Charge Current - Max [Max] | Interface | Number of Cells | Battery Chemistry | Voltage - Supply (Max) [Max] | Programmable Features | Supplier Device Package [x] | Supplier Device Package | Supplier Device Package [y] | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ25628ERYKR | 18-PowerWFQFN | Constant - Programmable | 85 °C | -40 °C | Over Current, Over Temperature, Over Voltage, Short Circuit | 2 A | I2C | 1 | Lithium Ion/Polymer | 18 V | Current, Timer, Voltage | 3 | 18-WQFN-HR | 2.5 | Surface Mount |
Description
General part information
BQ25628E Series
The BQ25628E is a highly-integrated 2-A switch-mode battery charge management and system power path management device for single cell Li-ion and Li-polymer batteries. The solution is highly integrated with built-in current sensing, loop compensation, input reverse-blocking FET (RBFET, Q1), high-side switching FET (HSFET, Q2), low-side switching FET (LSFET, Q3), and battery FET (BATFET, Q4) between system and battery. The device uses narrow VDC power path management, regulating the system slightly above the battery voltage without dropping below a configurable minimum system voltage. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time, extends battery life during discharging phase, and the ultra-low 0.15µA ship mode current extends battery shelf life. The I2C serial interface with charging and system settings makes the BQ25628E a truly flexible solution.
The BQ25628E has an ILIM pin to set the default input current limit and TS_BIAS pin for controlled thermistor bias.
The power path management regulates the system slightly above battery voltage but does not drop below the programmable minimum system voltage. With this feature, the system maintains operation even when the battery is completely depleted or removed. When the input current limit or input voltage limit is reached, the power path management automatically reduces the charge current. As the system load continues to increase, the battery starts to discharge until the system power requirement is met. This supplement mode prevents overloading the input source.
Documents
Technical documentation and resources