Products > Integrated Circuits (ICs) > MAX8934EETI
  • MAX8934EETI

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Dual-Input Linear Chargers, Smart Power Selector with Advanced Battery Temperature MonitoringSafely Charges a Li+ Cell Following JEITA-Recommended Safe Charging Methods

  • Package/Case :
  • QFN
  • Product Categories :
  • Battery Chargers
  • RoHs Status:
  • Lead free/RoHS Compliant
  • In-stock:
  • 229


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MAX8934EETI Product Details

The MAX8934_ dual-input Li+/Li-Poly linear battery chargers with Smart Power Selector safely charge a single Li+/Li-Poly cell in accordance with JEITA recommendations. The MAX8934_ monitors the battery temperature (TBATT) while charging, and automatically adjusts the fast-charge current and charge termination voltage as the battery temperature varies. The MAX8934_ also monitors the battery temperature while the battery is discharging, and provides a warning flag (active-low OT) to the system in the event that the battery is over temperature. Two safety profiles are supported (see Figure 6 in the full data sheet for details). An ultra-low IQ, always-on LDO provides an additional 3.3V supply for system power. The MAX8934_ operates with either separate inputs for USB and AC adapter power*, or from a single input that accepts both. All power switches for charging and switching the load between battery and external power are included on-chip. No external MOSFETs are required. The MAX8934_ features a Smart Power Selector to make the best use of limited USB or adapter power. Input current limit and battery charge current limit are independently set. Input power not used by the system charges the battery. Charge current limit and DC current limit can be set up to 1.5A and 2A, respectively, while USB input current can be set to 100mA or 500mA for the MAX8934A/MAX8934B/MAX8934C/MAX8934EETI and up to 1.5A (max) for the MAX8934D. Automatic input selection switches the system load from battery to external power. The MAX8934A provides a SYS output voltage of 5.3V, while the MAX8934B–MAX8934EETI provide a SYS output voltage of 4.35V. Other features include overvoltage protection (OVP), open-drain charge status and fault outputs, power-OK monitors, charge timers, and a battery thermistor monitor. Additionally, on-chip thermal limiting reduces the battery charge-rate to prevent charger overheating. The MAX8934_ is available in a 28-pin, 4mm x 4mm, TQFN package.


  • Li+ Charger with Smart Power Selector, No External MOSFETs Needed
  • Monitors Battery Temperature and Adjusts Charge Current and Termination Voltage Automatically per JEITA Recommendations
  • Active-Low OT Flags System of a Hot Battery During Discharge
  • Ultra-Low IQ, Always-On 3.3V LDO
  • Common or Separate USB and Adapter Inputs
  • Automatic Adapter/USB/Battery Switchover
  • Load Peaks in Excess of Adapter Rating are Supported by Battery
  • Input OVP to 16V (DC) and 9V (USB)
  • 40mΩ SYS-to-BATT Switch
  • Thermal Regulation Prevents Overheating
  • 4.35V or 5.3V SYS Regulation Voltage
  • 1.5A (max) USB Input Current Limit (MAX8934D)


  • Digital Still Cameras and Digital Video Cameras
  • Handheld Game Systems
  • PDAs, Palmtop, and Wireless Handhelds
  • Portable Media, MP3 Players, and PNDs

MAX8934EETI Block Diagram
(Picture: Diagram)

Technical Parameters

  • Cell Chemistry
  • Li-Ion ,Li-Polymer
  • NiMH/ NiCd Cells
  • -
  • Lithium Ion Cells
  • 1
  • Protected Vin (max) (V)
  • 14
  • Charging Vin (max) (V)
  • 6.6
  • Charger (V)
  • 4.2
  • Charge Rate Set by
  • Logic Input ,Resistor
  • Max. Ichg (A)
  • 1.5
  • Charge Termination
  • Min. Charge Current ,Timer
  • Secondary Charge Term.
  • -
  • Charge Regulation
  • Linear
  • Features
  • 4.35V SYS Output Voltage ,Dual USB/Adapter Input ,Input Current Limit ,Internal Switch ,JEITA Compliant ,Smart Power Selector ,Stand Alone ,Thermal Die Regulation ,Thermistor Input ,Timer ,USB Input
  • Design Tools
  • -
  • EV Kit
  • Yes
  • Industry Qualified
  • -
  • Oper. Temp. (\u00b0C)
  • -40 to +85
  • Package/Pins
  • TQFN/28
  • Smallest Available Pckg. (max w/pins) (mm2)
  • 16.8
  • RoHS Available
  • Yes
  • Budgetary Price (See Notes)
  • $2.18 @1k

MAX8934EETI Documents

MAX8934EETI Related Products

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    Sehr rascher Versand! Danke!!

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Estimated Delivery Time: Jan 27 - Feb 01 days (choose Expedited at checkout).

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We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

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    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that MAX8934EETI is the original manufacturer or agent of MAXIM?
We have a professional business development department to strictly test and verify the qualifications of MAXIM original manufacturers and agents. All MAXIM suppliers must pass the qualification review before they can publish their MAX8934EETI devices; we pay more attention to the channels and quality of MAX8934EETI products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of MAX8934EETI chips? Including MAXIM original factory information, Battery Chargers application, MAX8934EETI pictures?
You can use Jotrin's intelligent search engine, or filter by Battery Chargers category, or find it through Maxim Integrated Information page.
Q: Are the MAXIM's MAX8934EETI price and stock displayed on the platform accurate?
The MAXIM's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for MAX8934EETI, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of MAX8934EETI?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MAX8934EETI we delivered, we will accept the replacement or return of the MAX8934EETI only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of MAX8934EETI.
(3)The MAX8934EETI is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as MAX8934EETI datasheet pdf, MAX8934E pin diagram?
Need any After-Sales service, please feel free contact us:

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