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SM4354 800 mA/30 V Li-ion Linear Charger

SM4354 800 mA/30 V Li-ion Linear Charger

Single-chip solution integrating linear charger & synchronous boost. 1A rate, 93% efficiency, 10μA standby.

Regular price $0.74
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pcs
Quantity
Full Part NumberSM4354
Brand / ManufacturerHICHON
DatasheetDownload
Package TypeSOT23-5
MOQ / SPQ3000/Reel
Mounting StyleSMD/SMT
Input Voltage Range4.5 V~6.5 V (Max 30 V)
Charge CurrentUp to 1 A (Programmable)
Charge Voltage4.2V(±1%)
RDS(on)0.6 mΩ
Supply Voltage4.5 V~6.5 V
Operating Temperature-40℃ ~ +85℃
Semiconductor MaterialSilicon
Battery ChemistryLi-ion / Li-Polymer
Battery Cell Count1
Protection FeaturesBattery reverse connection protection, input over-voltage protection, UVLO, thermal regulation
PackagingTape / Reel
Working ModeLinear
The SM4354 is a single cell Li-ion battery linear charger using the complete CC/CV algorithm, which has the function of positive and negative electrode protection for battery at the same time. 

Features

  • Programmable Charge Current Up to 800 mA
  • No MOSFET, Sense Resistor or Blocking
  • Diode Required
  • Constant-Current/Constant-Voltage
  • Operation with Thermal Regulation to
  • Maximize Charge Rate without Overheating
  • Charge Single Cell Li-ion Battery Directly from USB Port
  • Accuracy up to ±1% of 4.2 V preset charging voltage
  • Charge Current Monitor Output for Battery Level Detection
  • Support battery 0V charging
  • Automatic Recharge
  • Charging OVP
  • 2.9 V Trickle Charge Threshold
  • Soft-start limiting surge current
  • C / 10 Charge Termination
  • SOT23-5 Package
  • 30V PIN withstand voltage

Applications

  • Mobile phone, PDA, MP3 players
  • Charging Docks and Cradles
  • Bluetooth applications
  • Other Portable Devices

Download SM4354 Datasheet

What is the Minimum Order Quantity (MOQ)?

Standard MOQ is 1 Reel. Sample orders are accepted in smaller quantities. Please contact us for custom arrangements.

Are your products guaranteed authentic?

All products are genuine, factory-sourced components. Certificate of Analysis (COA) and Datasheet are available upon request. Third-party inspection can be arranged if needed.

What is your sample policy?

Standard samples require a sample fee, which is deductible upon bulk order placement. Free evaluation samples are available for qualified companies. Shipping costs are covered by the buyer or charged to the buyer's courier account.

What payment methods are accepted?

We accept T/T (Wire Transfer) with 80% deposit and balance before shipment, PayPal or credit card for small orders, and net terms for established customers upon approval.

What is the lead time?

In-stock items ship within 3–7 business days. Custom or bulk orders take 4–12 weeks depending on capacity and materials. Exact lead time will be confirmed upon order placement.

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