Mfr Part #:

CN3722

Mfr Name: CN

The Consonance CN3722 is a versatile PWM switch-mode battery charger controller designed for photovoltaic applications. It features Maximum Power Point Tracking (MPPT) for efficient solar energy harvesting.

✓ Total Stock: 7,246 pcs

$ Price Range: $0.99

CN3722 Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	4,099 pcs On Request	4099 pcs	On Request	1	On Request	On Request	21+	On Request	On Request
Xingangxin ✓ Non-Authorised Inventory information	3,147 pcs On Request	3147 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

CN3722 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	CN
Charge Current	Up to 5A
Halogen Free	Halogen Free
Input Voltage	7.5V to 28V
Number of Pins	16

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CN3722 Description

Short technical summary and product information.

The CN3722 from Consonance is a PWM switch-mode battery charger controller specifically designed for photovoltaic (solar) applications. It integrates a Maximum Power Point Tracking (MPPT) function, allowing it to efficiently harvest power from solar cells across a wide input voltage range of 7.5V to 28V.

This IC is suitable for charging 1 or multi-cell lithium-ion or LiFePO4 batteries. It operates in constant current and constant voltage modes, with the charging current programmable via a sense resistor and the constant voltage set by an external resistor divider. The device supports charge currents up to 5A and operates at a high PWM switching frequency of 300KHz.

Key features include automatic conditioning of deeply discharged batteries, battery temperature monitoring, undervoltage lockout, and battery overvoltage protection. The CN3722 is available in a compact 16-pin TSSOP package and operates within an ambient temperature range of -40°C to +85°C. It is also RoHS compliant and halogen-free.

Applications include chargers powered by photovoltaic cells, electric tools, battery-backup systems, and standalone battery chargers.

CN3722 Quick Information

Product Type: Battery Charger IC

Canonical Name: CN3722 Multi-Chemistry Battery Charger IC with Photovoltaic Cell MPPT Function

Subcategory: JFETs

CN3722 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

CN3722 Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

CN3722 Features

MPPT function for efficient solar charging.
Supports Li-ion and LiFePO4 batteries.
Charge current up to 5A.
Wide input voltage range: 7.5V to 28V.
Operates from -40°C to +85°C.

CN3722 Applications

Ideal for solar-powered battery chargers.
Suitable for electric tools.
Used in battery-backup systems.
Applicable for standalone chargers.

CN3722 FAQs

6 frequently asked questions generated from this part’s specifications.

What is the maximum charge current for the CN3722?

The charge current can be up to 5A.

What is the input voltage range for the CN3722?

The input voltage range is 7.5V to 28V.

What is the operating ambient temperature range for the CN3722?

The operating ambient temperature range is -40°C to +85°C.

What type of batteries can the CN3722 charge?

The CN3722 is designed for charging 1 or multi-cell lithium-ion batteries or LiFePO4 batteries.

Does the CN3722 have Maximum Power Point Tracking (MPPT)?

Yes, the CN3722 features a Photovoltaic Cell Maximum Power Point Tracking function.

What package type is the CN3722 available in?

The CN3722 is available in a 16-pin TSSOP package.