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BQ24253 - 产品图解：
BQ24253 - 具有 Power-P 的 2A 单输入 I2C/独立开关模式锂离子电池充电器
BQ24253是TI公司的一款电池充电器IC产品，BQ24253是具有 Power-P 的 2A 单输入 I2C/独立开关模式锂离子电池充电器，本页介绍了BQ24253的产品说明、应用、特性等，并给出了与BQ24253相关的TI元器件型号供参考。
BQ24253 - 具有 Power-P 的 2A 单输入 I2C/独立开关模式锂离子电池充电器 - 电池充电器IC - 电池管理产品 - TI公司（Texas Instruments，德州仪器）
产品特性
- High-Efficiency Switched-Mode Charger With Separate Power Path
- Startup System From Deeply Discharged or Missing Battery
- USB Charging Compliant
- Selectable Input Current Limit of 100 mA, 500 mA, 900 mA, 1.5 A, and 2 A
- BC1.2 Compatible D+, D– Detection
- In Host Mode (After I2C Communication Starts and Before Watchdog Timer Times Out)
- Programmable Battery Charge Voltage, VBATREG
- Programmable Charge Current (ICHG)
- Programmable Input Current Limit (ILIM)
- Programmable Input Voltage-Based Dynamic Power Management Threshold, (VIN_DPM)
- Programmable Input Overvoltage Protection Threshold (VOVP)
- Programmable Safety Timer
- Resistor Programmable Defaults for:
- ICHG up to 2 A With Current Monitoring Output (ISET)
- ILIM up to 2 A With Current Monitoring Output (ILIM)
- VIN_DPM (VDPM)
- Watchdog Timer Disable Bit
- Integrated 4.9 V, 50 mA LDO
- Complete System-Level Protection
- Input UVLO, Input Overvoltage Protection (OVP), Battery OVP, Sleep Mode, VIN_DPM
- Input Current Limit
- Charge Current Limit
- Thermal Regulation
- Thermal Shutdown
- Voltage-Based, JEITA Compatible NTC Monitoring Input
- Safety Timer
- 22 V Absolute Maximum Input Voltage Rating
- 10.5 V Maximum Operating Input Voltage
- Low RDS(on) Integrated Power FETs for a Charging Rate of up to 2 A
- Open-Drain Status Outputs
- Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz for Small Inductor Support
- AnyBoot Robust Battery Detection Algorithm
- Charge Time Optimizer for Improved Charge Times at Any Given Charge Current
- 2.40-mm x 2.00-mm 30-Ball DSBGA and 4-mm x 4-mm 24-Pin QFN Packages
产品应用
- Mobile Phones and Smart Phones
- MP3 Players
- Portable Media Players
- Handheld Devices
产品说明
The bq24250, bq24251, and bq24253 are highly integrated single-cell Li-Ion battery chargers and system power-path management devices targeted for space-limited, portable applications with high-capacity batteries. The single-cell charger has a single input that operates from either a USB port or an AC wall adapter for a versatile solution.
产品器件信息
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| bq24250 bq24251 bq24253 | VQFN (24) | 4.00 mm x 4.00 mm |
| DSBGA (30) | 2.40 mm x 2.00 mm |
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