1-cell, 2-A, I2C controlled buck battery charger with 1uA in SYSOFF mode
Product details
Parameters
Package | Pins | Size
Features
- 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
Description
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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | bq24250C 2A Single Input I2C, Standalone Switch-Mode Li-Ion Battery Charger with Power-Path Management datasheet | Apr. 16, 2014 |
Technical articles | When to use rechargeable batteries in small battery applications | Oct. 01, 2019 | |
Technical articles | Should I use a linear charger or a switching charger? | Oct. 30, 2015 | |
Technical articles | Summertime and the livin' is easy | Jun. 20, 2014 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
This EVM enables test and evaluation of the Texas Instruments' bq24250/51/57 devices. The bq2425x series are highly integrated single cell Li-Ion battery chargers targeted for space-limited, portable applications with high capacity batteries. The single cell charger has a single input that operates (...)
Features
- High-efficiency switch-mode charger
- Synchronous fixed-frequency PWM controller operating at 3MHz for small inductor support
- USB charging compliant
- Integrated 50mA LDO
- Integrated power FETs for up to 2.0A charging rate
- Complete system level protection
- BC1.2 D+/D- detection with dead battery provision (DBP (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
DSBGA (YFF) | 30 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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