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德州仪器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，本站介绍了BQ24253的封装应用图解、特点和优点、功能等，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 - 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
bq24250 bq24251 bq24253	DSBGA (30)	2.40 mm x 2.00 mm

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