Product Images are shown for illustrative purposes only and may differ from actual product.

CN3791 Li-ion Battery Charger With Photovoltaic Cell MPPT Function IC

  • Stock: 22

    Availability: InStock priceValidUntil: 2026-04-03

  • SKU: 3770 | DAF737

Availability: InStock priceValidUntil: 2026-04-03

  • Rs. 63.72 (inc GST)
    Rs.54.00 + GST

    Qty :

GST Invoice: Available for all purchases — eligible for input tax credit.

Delivery: 2–8 days across India. No MOQ required.

Bulk Orders: Need more quantity or not in stock? Email: dnatechindia [at] gmail.com

Import Service: We import a wide range of electronic components on request.

CN3791 Li-ion Battery Charger IC With Photovoltaic Cell MPPT Function

 CN3791- 4A Standalone Li-ion Battery Charger IC With Photovoltaic Cell MPPT Function - SSOP 10 Pin

The CN3791 is a PWM switch-mode lithium ion battery charger controller that can be powered by photovoltaic cell with maximum power point tracking function with few external components.

The CN3791 is specially designed for charging lithium ion batteries with constant current and constant voltage mode. In constant voltage mode, the regulation voltage can be fixed at 4.2V with ±1% accuracy. The constant charge current is programmable with a single current sense resistor.

Deeply discharged batteries are automatically trickle charged at 17.5% of the full-scale current until the cell voltage exceeds 66.5% of constant voltage. The charge cycle is terminated once the charge current drops to 16% of full-scale current, and a new charge cycle automatically restarts if the battery voltage falls below 95.5% of regulation voltage. CN3791 will automatically enter sleep mode when input voltage is lower than battery voltage.

Other features include under voltage lockout, battery over voltage protection, status indication. CN3791 is available in a space-saving 10-pin SSOP package.

DNA solutions, Nashik has various types of SMD IC. Check out our complete collection of SMD IC

If you are in Nashik you can buy this Electronic Component at our local shop at New CBS, Nashik or you can place order online and get it delivered at your doorstep anywhere in India.

Features of  CN3791 Li-ion Battery Charger IC

  • Soft Start
  • High PWM Switching Frequency:300KHz
  • Photovoltaic Cell Maximum Power Point Tracking
  • Wide Input Voltage: 4.5V to 28V
  • Constant Voltage: 4.2V±1%
  • Complete Charge Controller for single cell Lithium-ion Battery
  • Charge Current Up to 4A
  • Charging Current is programmed with a current sense resistor
  • Charging Status Indication
  • Battery Overvoltage Protection
  • Automatic Conditioning of Deeply Discharged Batteries
  • Automatic Recharge
  • Operating Ambient Temperature-40°C to +85°C
  • Available in 10 Pin SSOP Package
  • Pb-free, Rohs-Compliant, Halogen Free

Applications of CN3791 IC

  • Power Bank 
  • Hand-held Equipment
  • Portable Industrial and Medical Equipment
  • Battery-Backup Systems
  • Standalone Battery Chargers

    Package Includes

    1 x  CN3791 Li-ion Battery Charger With Photovoltaic Cell MPPT Function IC

    Extra Information
    Country of Origin China
    Imported By ElectroSource Private Limited

    Reviews (2)

    Write a review

    Note: HTML is not translated!
        Bad           Good
    CAPTCHA verification code

    Frequently Asked Questions

    Do you provide a GST bills?
    Yes we provide GST Bill by the name of DNA Solutions. You will receive a GST compliant invoice for your records. You can take GST benefit.
    What is your return / replacement policy?
    Returns/replacements depend on the item type and condition. If there’s an issue, contact us with photos/videos and we’ll guide you as per policy.
    Do you ship all over India?
    Yes — we dispatch orders across India.
    I forgot to add GST number at time of placing order, but I need GST Invoice in my firms name?
    You can contact us via Contact us page and send your order details and GST number we will send you updated Invoice soft copy.
    Do you accept bulk / OEM orders?
    Yes — we handle bulk orders and OEM supply requests across India. Share part number and quantity for a quote.
    Do you supply branded parts (Texas Instruments, ST, Vishay, etc.)?
    Yes — if a brand/manufacturer is listed on the product page. If not listed, share the exact manufacturer + part number and we’ll check sourcing options.

    NEW Products

    Product Page : New Products

    HT12E RF Encoder

    HT12E RF EncoderHT12E: RF Encoder The 212 decoders are a series of CMOS LSIs for remote control syst..

    Rs.62.84 (inc GST)
    Rs.53.25 + GST

    SKU: 27 | DAA482
    Stock: 9

    Magnetic Door Sensor 27mm

    Magnetic Door Sensor 27mmWant to sense is door is open or closed? This is the perfect low cost senso..

    Rs.66.20 (inc GST)
    Rs.56.10 + GST

    SKU: 1135 | DAA830
    Stock: 16

    Semikron SKKT57B16E Thyristor/Diode Module

    Semikron SKKT57B16E Thyristor/Diode ModuleSKKT57B16E Thyristor Diode Module for high reliability wit..

    Rs.1,282.66 (inc GST)
    Rs.1,087.00 + GST

    SKU: 3022 | DAE773
    Stock: 2

    Hongfa HF46F/24-HS1T 24 Volt Relay

    Hongfa HF46F/24-HS1T 24 Volt Electromagnetic RelayHongfa HF46F/24-HS1T Relay, 24VDC, SPDT, 5A contac..

    Rs.44.84 (inc GST)
    Rs.38.00 + GST

    SKU: 7961 | DAH695
    Stock: 50

    Have You Seen

    Product Page : Have You Seen

    XL2596 5.0Volt PWM Stepdown DC/DC Buck Converter TO-220-5 IC

    XL2596 5.0Volt PWM Stepdown DC/DC Buck ConverterXL2596 PWM Buck Converter 5V Output, 3A Load, 90% Ef..

    Rs.46.14 (inc GST)
    Rs.39.10 + GST

    SKU: 7254 | DAF752
    Stock: 150

    SS34 SMA Schottky Diode

    SS34 SMA Schottky Diode SS34 is a Surface Mount Schottky Barrier Rectifier. It is suitable for use ..

    Rs.7.08 (inc GST)
    Rs.6.00 + GST

    SKU: 1081 | DAB679
    Stock: 1958

    AMS1117 5v Power Supply Module

    AMS1117 5v Power Supply ModuleAMS1117 5v Power Supply ModuleThe AMS1117 5V Power Supply Module utili..

    Rs.30.92 (inc GST)
    Rs.26.20 + GST

    SKU: 4061 | DAE590
    Stock: 23

    WAYON WMJ26N60C2 N-Channel Power MOSFET

    WAYON WMJ26N60C2 N-Channel Power MOSFETWAYON WMJ26N60C2 N-Channel MOSFET, 600V, 20-26A, ideal for ef..

    Rs.171.66 (inc GST)
    Rs.145.48 + GST

    SKU: 10492 | DAJ516
    Stock: 25

    Related Products

    LM311 Comparator

    LM311 Comparator

    LM311 ComparatorThe LM311 is single high-speed voltage comparators. These devices are designed to op..

    Rs.20.06 (inc GST)
    Rs.17.00 + GST

    SKU: 558 | DAA079
    Stock: 14
    IRFP4768 Power MOSFET

    IRFP4768 Power MOSFET

    Infineon IRFP4768 N-Channel Power MOSFETIRFP4768 N-Channel MOSFET for 250V applications with high ef..

    Rs.536.90 (inc GST)
    Rs.455.00 + GST

    SKU: 1400 | DAA182
    Stock: 19
    FS8205 TSSOP-8 PIN  Battery protection IC

    FS8205 TSSOP-8 PIN Battery protection IC

    FS8205A TSSOP-8 PIN  Battery protection ICFS8205A is the dual N-Channel enhancement mode p..

    Rs.12.39 (inc GST)
    Rs.10.50 + GST

    SKU: 1887 | DAB609
    Stock: 100
    ZERO PCB 9X15 SINGLE SIDED GLASS EPOXY

    ZERO PCB 9X15 SINGLE SIDED GLASS EPOXY

    ZERO 9x15 Single Sided Glass Epoxy PCB 9x15 cm single sided glass epoxy PCB for prototyping with sta..

    Rs.131.92 (inc GST)
    Rs.111.80 + GST

    SKU: 2117 | DAB880
    Stock: 15
    NE555 PRECISION TIMER SMD IC

    NE555 PRECISION TIMER SMD IC

    NE555 Precision Timer SMD IC NE555 Timer IC for timing and pulse generation with wide voltage range ..

    Rs.7.17 (inc GST)
    Rs.6.08 + GST

    SKU: 8714 | DAB640
    Stock: 4
    16 Pin JST Male / Female With Pins 2.54 mm Without Wire

    16 Pin JST Male / Female With Pins 2.54 mm Without Wire

    16 Pin JST Male/Female Connector 2.54mm 16 Pin JST Male/Female Connector Set 2.54mm for board-to-boa..

    Rs.21.15 (inc GST)
    Rs.17.92 + GST

    SKU: 8863 | DAI199
    Stock: 0