LTC4055T - Brand New Linear Technology IC Chips
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DESCRIPTION
The LTC®4055 is a USB power manager and Li-Ion battery charger designed to work in portable battery-powered applications. The part manages and limits the total current used by the USB peripheral for operation and battery charging. Depending on the state of the current select pin (HPWR), total input current can be limited to either 100mA or 500mA. The voltage drop from the USB supply or battery to the USB peripheral is typically less than 100mV at 400mA and 20mV at 80mA. Other management features include: automatic switch over to battery when input is removed, inrush current limiting, reverse current blocking, undervoltage lockout and thermal shutdown.
FEATURES
■ Charges Single Cell Li-Ion Batteries Directly from
USB Port
■ Load Dependent Charging Guarantees USB Input
Current Compliance
■ Automatic Battery Switchover When Input Supply
is Removed
■ Constant-Current/Constant-Voltage Operation with
Thermal Feedback to Maximize Charging Rate
Without Risk of Overheating*
■ Selectable 100% or 20% Current Limit
(e.g., 500mA/100mA)
■ Low Loss Full PowerPathTM Control with Ideal Diode
Operation (Reverse Current Blocking)
■ Preset 4.2V Charge Voltage with 0.8% Accuracy
■ USB Compliant Suspend Mode
■ Programmable Charge Current and Termination Timer
■ Automatic Recharge
■ Soft-Start Limits Inrush Current
■ NTC Thermistor Input for Temperature Qualified
Charging
■ Tiny (4mm × 4mm × 0.8mm) QFN PackageAPPLICATIONS
■ Portable USB Devices: Cameras, MP3 Players, PDAs
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
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Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
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Popular parts of the same kind
- Datasheet: Download LTC4055T
- Chipdatas Part: CD87-LTC4055T
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/26 08:45 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
$40 limited time offer. -
FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.
