BQ24100RHLT Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments BQ24100RHLT is a 4.5A Li-Ion battery charge controller with pulse-width modulation control, operating from 4.35 V to 16 V input. Features integrated power management in a compact QFN-20 package (3.50 x 4.50 mm). Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- BQ24100RHLT Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4.5 A maximum output current enables fast charging of single-cell Li-Ion batteries up to 4.2 V regulation voltage
- Pulse-width modulation voltage-mode control at up to 1100 kHz switching frequency for efficient power conversion
- Compact QFN-20 package (3.50 x 4.50 mm) with RoHS-compliant materials enables high-density PCB designs
Applications
The BQ24100RHLT is designed for portable electronics requiring reliable single-cell Li-Ion battery charging, including laptops, tablets, and handheld instruments. Its 4.35 V to 16 V wide input range accommodates USB adapters and DC power supplies. The high 4.5 A charge current and compact footprint make it suitable for space-constrained power management designs in industrial and consumer devices.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | INTEGRATED POWER MANAGEMENT UNIT |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 4.35V |
| JESD-30 Code | R-PQCC-N20 |
| Number of Functions | 1 |
| Output Current-Max | 4.5A |
| Output Voltage-Nom | 4.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1100kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum charge current the BQ24100RHLT can deliver to a Li-Ion battery?
The BQ24100RHLT supports a maximum output charge current of 4.5 A, allowing rapid charging of single-cell Li-Ion batteries regulated to 4.2 V. This high current capability reduces total charge time significantly compared to lower-current controllers in similar packages.
Which input voltage range does BQ24100RHLT support, and how does that affect adapter selection?
BQ24100RHLT accepts input voltages from 4.35 V minimum to 16 V maximum, making it compatible with standard 5 V USB adapters as well as 12 V or 15 V DC wall adapters. Designers should ensure the adapter stays within this 4.35 V–16 V window to prevent under-voltage lockout or damage.
How does the QFN-20 package affect thermal performance and board layout for BQ24100RHLT?
The QFN-20 package measures 3.50 x 4.50 mm with an exposed thermal pad that improves heat dissipation at 4.5 A charge currents. Its small footprint allows tight PCB routing, and the 1100 kHz switching frequency reduces the size of external inductors and capacitors needed in the power stage.
In which battery-powered product categories is BQ24100RHLT most commonly designed in?
BQ24100RHLT is widely used in laptops, industrial handheld instruments, and medical portable devices requiring single-cell Li-Ion charging at up to 4.5 A. Its voltage-mode PWM control and 16 V maximum input make it a strong fit for multi-adapter environments where both 5 V USB and 12 V DC sources may be present.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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