Richtek USA Inc. RT9470DWSC
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.01 | $4.01 |
| 15+ | $3.88 | $58.20 |
| 25+ | $3.80 | $95.00 |
| 50+ | $3.59 | $179.50 |
| 100+ | $3.17 | $317.00 |
| N+ | $0.63 | 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 |
| Current - Charging | Constant - Programmable |
| Programmable Features | Current, Timer |
| Fault Protection | Over Current, Over Temperature, Over-Under Voltage |
| Charge Current - Max | 3A |
| Battery Pack Voltage | 4.7V |
| Voltage - Supply (Max) | 13.5V |
| Interface | I2C |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 30-UFBGA, WLCSP |
| Supplier Device Package | 30-WLCSP (2.1x2.5) |
| ROHS |  |
The Richtek RT9470DWSC is a high-current, switch-mode battery charger for single-cell Lithium Ion/Polymer batteries. It supports a charge current up to 3A and a battery voltage of 4.7V. Controlled via an I2C interface, it offers programmable charging parameters. The device includes robust protection against over-current, over-temperature, and over-under voltage conditions. Its compact 30-UFBGA WLCSP package is ideal for space-constrained, high-performance portable electronics.
- Fast Charging: Supports up to 3A charge current, dramatically reducing charge time for high-capacity batteries.
- Digital Control: I2C interface enables precise programming and real-time monitoring of the charging process.
- Comprehensive Protection: Safeguards the battery with over-current, over-temperature, and over-under voltage protection.
- Space-Saving Package: The WLCSP package is ideal for ultra-thin and compact device designs.
High-Capacity Smartphones and Tablets
The 3A charge current significantly reduces charging time for large-capacity single-cell Li-Ion batteries found in modern smartphones and tablets, while I2C control allows for dynamic current adjustment.
Portable Power Banks
Ideal for power bank designs requiring fast, efficient charging of the internal cell. The WLCSP package saves critical board space, and the comprehensive protection suite ensures safe operation.
Drones and RC Hobby Devices
Provides the high current needed to quickly recharge Li-Polymer packs in drones and remote-controlled vehicles. The over-temperature and over-voltage protections are critical for high-discharge battery packs.
Industrial Handheld Terminals
Suitable for rugged PDAs and barcode scanners used in warehouses. The -40°C to 85°C operating range ensures reliable charging in unheated or unconditioned environments.
Compact Medical Wearables
The tiny 30-UFBGA WLCSP package and I2C interface make it suitable for smart insulin pumps and health monitors where size and precise charge control are paramount.
- Q: What battery chemistry does the RT9470DWSC support?
- A: It is designed for Lithium Ion/Polymer batteries.
- Q: How many cells can it charge?
- A: It supports a single cell (1 cell).
- Q: What is the maximum charge current?
- A: The maximum charge current is 3A.
- Q: What is the battery pack voltage?
- A: The battery voltage is 4.7V.
- Q: What fault protection features are included?
- A: It includes Over Current, Over Temperature, and Over-Under Voltage protection.
- Q: What interface does it use for control?
- A: It uses an I2C interface for configuration and monitoring.
RT9470DWSC.pdf
- Q: What battery chemistry does the RT9470DWSC support?
- A: It is designed for Lithium Ion/Polymer batteries.
- Q: How many cells can it charge?
- A: It supports a single cell (1 cell).
- Q: What is the maximum charge current?
- A: The maximum charge current is 3A.
- Q: What is the battery pack voltage?
- A: The battery voltage is 4.7V.
- Q: What fault protection features are included?
- A: It includes Over Current, Over Temperature, and Over-Under Voltage protection.
- Q: What interface does it use for control?
- A: It uses an I2C interface for configuration and monitoring.
