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MAX7450 SOP
MAXIM
  • MAX7450
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MAX7450

8-Bit Parallel-Out Serial Shift Registers 14-CDIP -55 to 125

Manufacturer :
Maxim Integrated
Package/Case :
SOP
Product Categories :
Battery Chargers
Datasheet:
MAX7450 PDF
RoHs Status:
Lead free / RoHS Compliant
In-stock:
6855

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MAX7450 Product Details

The MAX7450 provides all functions necessary for charging lithium-ion (Li+) battery packs. It provides a regulated charging current of up to 4A without getting hot, and a regulated voltage with only ±0.75% total error at the battery terminals. It uses low-cost, 1% resistors to set the output voltage, and a low-cost N-channel MOSFET as the power switch. The MAX7450 regulates the voltage set point and charging current using two loops that work together to transition smoothly between voltage and current regulation. The per-cell battery voltage regulation limit is set between 4V and 4.4V using standard 1% resistors, and then the number of cells is set from 1 to 4 by pin-strapping. Total output voltage error is less than ±0.75%. For a similar device with an SMBus microcontroller interface and the ability to charge NiCd and NiMH cells, refer to the MAX1647 and MAX1648. For a low-cost Li+ charger using a linear-regulator control scheme, refer to the MAX846A.

Feature

  • Charges 1 to 4 Li+ Battery Cells
  • ±0.75% Voltage-Regulation Accuracy Using 1% Resistors
  • Provides up to 4A without Excessive Heating
  • 90% Efficient
  • Uses Low-Cost Set Resistors and N-Channel Switch
  • Up to 24V Input
  • Up to 18V Maximum Battery Voltage
  • 300kHz Pulse-Width Modulated (PWM) Operation
    • Low-Noise, Small Components
  • Stand-Alone Operation—No Microcontroller Needed

Applications

  • Cell Phones
  • Desktop Cradle Chargers
  • Handheld Instruments (PDAs, Palmtops)
  • Li+ Battery Packs
  • Notebook Computers

MAX7450 Block Diagram
(Picture: Diagram)

Technical Parameters

Cell Chemistry Li-Ion ,Li-Polymer Charge Regulation Switchmode
NiMH/ NiCd Cells - Features Stand Alone ,Thermistor Input
Lithium Ion Cells 1 ,2 ,3 ,4 Design Tools -
Protected Vin (max) (V) 24 EV Kit Yes
Charging Vin (max) (V) 24 Industry Qualified -
Charger (V) 18 Oper. Temp. (\u00b0C) -40 to +85
Charge Rate Set by Resistor Package/Pins SSOP/20
Max. Ichg (A) 4 Smallest Available Pckg. (max w/pins) (mm2) 57.9
Charge Termination Current Limit ,Max. Voltage RoHS Available Yes
Secondary Charge Term. - Budgetary Price (See Notes) $5.06 @1k

MAX7450 Documents

MAX7450 Related Products

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Estimated Delivery Time: Jan 25 - Jan 30 days (choose Expedited at checkout).

Shipping & Payment

Shipping

Shipping Type Ship Fee Lead Time
DHL

$20.00-$40.00 (0.50 KG)

2-5 days
Fedex

$20.00-$40.00 (0.50 KG)

3-7 days
UPS

$20.00-$45.00 (0.50 KG)

2-5 days
TNT

$25.00-$65.00 (0.50 KG)

2-5 days
EMS

$25.00-$45.00 (0.50 KG)

5-14 days
REGISTERED AIR MAIL

$2.00-$3.00 (0.10 KG)

7-30 days

Processing Time:Shipping fee depend on different zone and country.


Payment

Terms of payment Hand Fee Payment Site
Wire Transfer

charge US$30.00 banking fee.

Paypal

charge 4.0% service fee.

https://www.paypal.com/
Credit Card

charge 3.5% service fee.

Western Union

charge US$0.00 banking fee.

https://www.westernunion.com/
Money Gram

charge US$0.00 banking fee.

http://global.moneygram.com/

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.

Packing

  • Step1:Product

    Step1:Product

  • 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

  • Step6:bar-code shipping tag

    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.

Guarantees

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.

FAQ:

Q: How does Jotrin guarantee that MAX7450 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 MAX7450 devices; we pay more attention to the channels and quality of MAX7450 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of MAX7450 chips? Including MAXIM original factory information, Battery Chargers application, MAX7450 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 MAX7450 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 MAX7450, 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 MAX7450?
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 MAX7450 we delivered, we will accept the replacement or return of the MAX7450 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 MAX7450.
(3)The MAX7450 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 MAX7450 datasheet pdf, MAX745 pin diagram?
Need any After-Sales service, please feel free contact us: sales@jotrin.com

Maxim Integrated

Maxim
Maxim Integrated Products is a global range of linearity, mixed-signal integrated circuits (IC) design, R & D and manufacturing leader, has designed, developed, and manufactured analog, mixed-signal,...
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