Home > Products > RICHTEK > RICHTEK RT9451GQW (0Q=EG,0Q=EL,0Q=EF...OQ=EG,OQ=EL,OQ=EF...) QFN-32,Switch-Mode Single Cell Li-ion Battery Charger with USB OTG
RICHTEK RT9451GQW (0Q=EG,0Q=EL,0Q=EF...OQ=EG,OQ=EL,OQ=EF...) QFN-32,Switch-Mode Single Cell Li-ion Battery Charger with USB OTG
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Product Details
| D/C | 10+ | Package | QFN | |
| Model Number | RT9451GQW | Type | Drive IC | |
| Brand Name | RICHTEK | Place of Origin | Taiwan, China |
Product Description
The RT9451 integrates a high efficiency USB friendly switch mode charger with On-The-Go (OTG) support for single cell Li-ion and Li-polymer batteries, D+D- detection, and a 50mA LDO regulator into a single chip.
The charger features a synchronous 375kHz PWM controller with integrated power MOSFETs, input current sensing and regulation, Minimum Input Voltage Regulation (MIVR), high accuracy charge current and voltage regulation, and charge termination. It charges the battery in three phases : low current pre-charge, constant current fast charge, and constant voltage trickle charge. The input current is automatically limited to the value set by the host. The charger can be configured to terminate charge based on user-selectable minimum current level and automatically restart the charge cycle if the battery voltage falls below the recharge threshold. A safety timer with reset control provides a safety backup for I2C interface. The charger automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status is reported to the host using the I2C interface and the STAT pin. The D+D- detection circuit allows automatic detection of a USB wall charger. If a wall charger is detected, the input current limit will automatically increase from 500mA to 975mA.
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All items are priced each.
All items are subject to availability and passing our QA inspection.
Packaging: Safety package(Carton)
Shipping:
1. We will ship the items within 2 working days after the payment confirmed.
2. We can ship to you by UPS/DHL/TNT/EMS/FedEx/HK post/china post. Please contact us directly and we will use your preferred ways. For the Countries & Regions where EMS cannot deliver, please choose other shipping ways.
Warranty:
1.Our side always double check all the products before delivery to make sure correct.
2.All components we sell has 30 days return policy from the day of shipment, but if the damage is man-made, we will be unable to change for you.
Contact Us
- Shenzhen Visen Electronic Co., Ltd.
- Contact nameVISEN SZ Chat Now
- Address, Shenzhen, Guangdong
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