BQ21080YBGR
Active800-MA LI-ION AND LIFEPO4 I²C PROGRAMMABLE LINEAR CHARGER WITH REGULATED POWER PATH IN WCSP PACKAGE
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BQ21080YBGR
Active800-MA LI-ION AND LIFEPO4 I²C PROGRAMMABLE LINEAR CHARGER WITH REGULATED POWER PATH IN WCSP PACKAGE
Technical Specifications
Parameters and characteristics for this part
| Specification | BQ21080YBGR |
|---|---|
| Battery Chemistry | Multi-Chemistry |
| Battery Pack Voltage [Max] | 4.6 V |
| Battery Pack Voltage [Min] | 2.2 V |
| Charge Current - Max [Max] | 800 mA |
| Current - Charging | Constant - Programmable |
| Fault Protection | Over Temperature, Short Circuit, Over Current, Over-Under Voltage |
| Interface | I2C |
| Mounting Type | Surface Mount |
| Number of Cells | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | DSBGA, 8-XFBGA |
| Programmable Features | Current, Timer, Voltage |
| Supplier Device Package | 8-DSBGA |
| Supplier Device Package [x] | 1.6 |
| Supplier Device Package [y] | 1.1 |
| Voltage - Supply (Max) [Max] | 5.5 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 | $ 2.99 | |
| 10 | $ 1.94 | |||
| 25 | $ 1.67 | |||
| 100 | $ 1.36 | |||
| 250 | $ 1.21 | |||
| 500 | $ 1.12 | |||
| 1000 | $ 1.04 | |||
| Digi-Reel® | 1 | $ 2.99 | ||
| 10 | $ 1.94 | |||
| 25 | $ 1.67 | |||
| 100 | $ 1.36 | |||
| 250 | $ 1.21 | |||
| 500 | $ 1.12 | |||
| 1000 | $ 1.04 | |||
| Tape & Reel (TR) | 3000 | $ 0.94 | ||
| 6000 | $ 0.91 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.55 | |
| 100 | $ 1.28 | |||
| 250 | $ 0.92 | |||
| 1000 | $ 0.69 | |||
BQ21080 Series
800-mA Li-ion and LiFePO4 I²C programmable linear charger with regulated power path in WCSP package
| Part | Battery Chemistry | Voltage - Supply (Max) [Max] | Number of Cells | Mounting Type | Programmable Features | Charge Current - Max [Max] | Current - Charging | Supplier Device Package | Supplier Device Package [y] | Supplier Device Package [x] | Operating Temperature [Max] | Operating Temperature [Min] | Interface | Fault Protection | Package / Case | Battery Pack Voltage [Max] | Battery Pack Voltage [Min] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ21080YBGR | Multi-Chemistry | 5.5 V | 1 | Surface Mount | Current, Timer, Voltage | 800 mA | Constant - Programmable | 8-DSBGA | 1.1 | 1.6 | 85 °C | -40 °C | I2C | Over Current, Over Temperature, Over-Under Voltage, Short Circuit | 8-XFBGA, DSBGA | 4.6 V | 2.2 V |
Description
General part information
BQ21080 Series
The BQ21080 is a linear battery charger IC focusing on small solution size and low quiescent current for extending battery life. The device is available in an 8-ball chipscale package which does not need HDI PCB process for fabrication thereby reducing the PCB cost. The device can support up to 800-mA charging and system loads of up to 2.5 A.
The battery is charged using a standard Li-ion or LiFePO4 charge profile with three phases: precharge, constant current and constant voltage. Thermal regulation provides the maximum charge current while managing the device temperature. The charger is also optimized for battery to battery charging with 3-V minimum input voltage operation and can withstand 25-V absolute maximum line transients. The device integrates a single push-button input and reset circuitry to reduce the total solution footprint.
The BQ21080 is a linear battery charger IC focusing on small solution size and low quiescent current for extending battery life. The device is available in an 8-ball chipscale package which does not need HDI PCB process for fabrication thereby reducing the PCB cost. The device can support up to 800-mA charging and system loads of up to 2.5 A.
Documents
Technical documentation and resources