Richtek USA Inc. RT9490WSC
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.48 | $6.48 |
| 15+ | $6.27 | $94.05 |
| 25+ | $6.14 | $153.50 |
| 50+ | $5.80 | $290.00 |
| 100+ | $5.12 | $512.00 |
| N+ | $1.02 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Richtek USA Inc. |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Battery Chemistry | Lithium Ion/Polymer |
| Number of Cells | 1 ~ 4 |
| Current - Charging | Constant - Programmable |
| Programmable Features | Current, Timer, Voltage |
| Fault Protection | Over Current, Over Temperature, Over-Under Voltage, Short Circuit |
| Charge Current - Max | 5A |
| Battery Pack Voltage | 18.8V (Max) |
| Voltage - Supply (Max) | 24V |
| Interface | I2C |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 56-UFBGA, WLCSP |
| Supplier Device Package | 56-WLCSP (2.93x3.46) |
| ROHS |  |
The RT9490WSC is a high-current, multi-cell battery charger for Lithium Ion and Lithium Polymer batteries. It supports 1 to 4 cells with a maximum charge current of 5A and a battery pack voltage up to 18.8V. Featuring an I2C interface for flexible control and comprehensive fault protection including Over Current, Over Temperature, Over-Under Voltage, and Short Circuit, this charger is designed for demanding portable and industrial applications. It is available in a compact 56-UFBGA WLCSP package.
- High-Current Charging: Up to 5A supports fast charging of multi-cell packs.
- Multi-Cell Flexibility: Handles 1 to 4 cells for diverse battery configurations.
- Comprehensive Protection: Over Current, Over Temperature, Over-Under Voltage, and Short Circuit safeguards.
- Digital Control: I2C interface enables precise charging parameter adjustments.
- Wide Temperature Range: -40°C to 85°C for industrial reliability.
Multi-Cell Power Banks
Charge 2-4 cell Li-Ion/Polymer packs in high-capacity power banks with up to 5A current, enabling rapid recharging of large batteries.
Portable Power Tools
Support cordless drills and saws with multi-cell packs, using I2C for smart charging profiles and robust fault protection.
Drones and UAVs
Manage 4S LiPo batteries in drones, delivering high current and monitoring cell voltage to ensure safe flight operations.
Electric Bicycles
Charge e-bike battery packs efficiently with 18.8V max voltage, benefiting from Over-Under Voltage protection for longevity.
Industrial Handhelds
Power rugged tablets and scanners with multi-cell batteries, leveraging the -40°C to 85°C range for outdoor use.
- Q: What battery chemistries are supported?
- A: It supports Lithium Ion and Lithium Polymer batteries.
- Q: How many cells can it charge?
- A: It supports 1 to 4 cells.
- Q: What is the maximum charge current?
- A: The maximum charge current is 5A.
- Q: What is the maximum battery pack voltage?
- A: The battery pack voltage can reach 18.8V (Max).
- Q: What fault protections are included?
- A: It includes Over Current, Over Temperature, Over-Under Voltage, and Short Circuit protection.
- Q: What interface is used for control?
- A: It uses an I2C interface.
RT9490WSC.pdf
- Q: What battery chemistries are supported?
- A: It supports Lithium Ion and Lithium Polymer batteries.
- Q: How many cells can it charge?
- A: It supports 1 to 4 cells.
- Q: What is the maximum charge current?
- A: The maximum charge current is 5A.
- Q: What is the maximum battery pack voltage?
- A: The battery pack voltage can reach 18.8V (Max).
- Q: What fault protections are included?
- A: It includes Over Current, Over Temperature, Over-Under Voltage, and Short Circuit protection.
- Q: What interface is used for control?
- A: It uses an I2C interface.
