Specifications
| Type | Description |
|---|---|
| Part Number | BQ24090 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | DGQ HVSSOP, 10-pin, 3.00 mm x 3.00 mm |
| Charge Voltage | 4.20 V; 1% accuracy |
| Charge Current Range | 50 mA to 1000 mA; ISET programmed |
| Input Current Limit | 100 mA or 500 mA; pin selectable |
| Input Overvoltage Protection | 6.6 V |
| Thermal Regulation | 125°C |
| Thermal Shutdown | 150°C |
| Safety Timer | 10 hours |
| Datasheet Status | request_only |
Product Overview
The BQ24090 is a Texas Instruments single-cell Li-ion/Li-Pol charger. It regulates the output to 4.20 V with 1% charge-voltage accuracy and 10% fast-charge current accuracy. Input current limit options are 100 mA or 500 mA via ISET2 pin.
The ISET resistor range supports 50 mA to 1000 mA fast-charge programming. The device includes 6.6 V input overvoltage protection, 125°C thermal regulation, 150°C thermal shutdown, and a 10-hour safety timer.
Key Features
- Single-cell Li-ion/Li-Pol charger
- 4.20 V regulation with 1% accuracy
- 50-1000 mA fast charge range
- 100/500 mA USB input limits
- 6.6 V overvoltage protection
- 125°C thermal regulation
- 150°C thermal shutdown
- 10-hour safety timer
- 10 kΩ NTC support
- Power-good output
Typical Applications
- Single-cell Li-ion/Polymer charging
- USB chargers
- Battery system power management
- NTC-monitored battery systems
Procurement Notes
When requesting a quote for BQ24090, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What battery chemistry is supported?
Single-cell Li-ion/Li-Pol, regulated to 4.20 V.
How is fast-charge current programmed?
Via a resistor from ISET pin to VSS, 50 mA to 1000 mA.
What USB input limits are supported?
100 mA or 500 mA, pin-selectable through ISET2.
What thermal protection is included?
125°C thermal regulation, 150°C thermal shutdown.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 19, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.