SYSOFF 模式下具有 1uA 静态电流、I2C 控制型单节 2A 降压型电池充电器
| Number of series cells | 1 |
| Charge current (Max) (A) | 2 |
| Operating Vin (Max) (V) | 10.5 |
| Cell chemistry | Li-Ion/Li-Polymer |
| Battery charge voltage (Min) (V) | 3.5 |
| Battery charge voltage (Max) (V) | 4.44 |
| Absolute Vin (safety rating) (Max) ((V)) | 20 |
| Control interface | I2C, Standalone (RC-Settable) |
| Features | BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, Integrated LDO, Power Path |
| Operating Vin (Min) (V) | 4.35 |
| Rating | Catalog |
- High-efficiency Switch-mode Charger with Separate Power Path
- Start up 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
- Selectable Input Current Limit of 100 mA, 500 mA, 900 mA,\
- 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)
- ICHG up to 2 A with Current Monitoring Output
- Watchdog Timer Disable Bit
- Integrated 4.9 V, 50 mA LDO
- Complete System Level Protection
- Input UVLO, Input Over-voltage Protection (OVP),
Battery OVP, Sleep Mode, VIN_DPM - Input Current Limit
- Charge Current Limit
- Thermal Regulation
- Thermal Shutdown
- Voltage Based NTC Monitoring Input
- Safety Timer
- Input UVLO, Input Over-voltage Protection (OVP),
- 20 V Maximum Input Voltage Rating
- 10.5 V Maximum Operating Input Voltage
- Low RDS(on) Integrated Power FETs for up to 2 A
Charging Rate - Open Drain Status Outputs
- Synchronous Fixed-frequency PWM Controller Operating at
3MHz for Small Inductor Support - Robust Battery Detection Algorithm
- Charge Time Optimizer for improved charge times at any given
charge current - 2.4 × 2.0 mm 30-ball WCSP Packages
The bq24250C is a highly integrated single-cell Li-Ion battery charger and system power-path management device 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 AC wall adapter for a versatile solution.
