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NCP1835MN20R2 - 1A Single-Cell Li-Ion Charger | onsemi

Name: NCP1835MN20R2 - 1A Single-Cell Li-Ion Charger | onsemi
Brand: onsemi
SKU: NCP1835MN20R2

MPN: NCP1835MN20R2 ✓ Hoạt động

4.2 V Vdss 1.0 A Id 10-terminal DFN, 3 x 3 mm, exposed pad Package

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NCP1835MN20R2 Tóm tắt

onsemi NCP1835MN20R2 is an integrated linear lithium-ion battery charger with a maximum charge current of 1.0 A and a 4.2 V charge voltage, packaged in a 10-terminal 3 x 3 mm DFN with an exposed pad. It uses a constant-current, constant-voltage charging profile for one-cell Li-ion batteries and supports low-input-voltage operation.

A linear lithium-ion charger is a power-management IC that converts source power into controlled battery charging energy. It belongs to the battery-management IC hierarchy, which supports portable electronics, mobile accessories, wearable devices, and compact battery-powered equipment. Unlike switching chargers, the NCP1835MN20R2 uses a simpler linear power path, making it useful where component count, control simplicity, and low board area matter.

The charger provides adjustable charge current, regulation capability without a connected battery, and onboard thermal foldback. Its low-input-voltage capability is useful for USB-powered systems and compact adapters. The exposed-pad DFN package helps dissipate heat when charging, although thermal performance depends on PCB copper area and the selected charge current.

According to the available manufacturer and distributor information, the NCP1835MN20R2 is identified as a 1 A maximum single-cell battery charger with a 4.2 V battery voltage and 10-DFN exposed-pad package. The ordering code includes the R2 tape-and-reel configuration, while the core electrical function remains a 1-cell Li-ion charger.

Typical applications include USB-powered phones, portable audio equipment, wearables, small sensor nodes, and compact industrial or consumer products with a single Li-ion cell. When selecting it, verify the source voltage, battery chemistry, charge-current requirement, thermal conditions, and pinout against the latest onsemi datasheet before production release.

For layout, place input and output capacitors close to the relevant pins and provide adequate exposed-pad copper for heat dissipation. Treat the listed distributor price as indicative and confirm current stock, lifecycle status, and authorized-channel availability before committing to a design.

Bộ thay thế dễ dàng lắp đặt cho NCP1835MN20R2 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.

NCP1835MN20R2

✅ Drop-In

onsemi

📦 10-DFN (3x3)

Integrated single-cell Li-ion battery charger · 1.0 A · 4.2 V · Constant-current, constant-voltage (CCCV) · 1 cell · Adjustable · Supported

Liên hệ để biết giá

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NCP1835MN25R2

✅ Drop-In ⚠️ Thông số chưa được xác minh

📦 10-DFN (3x3)

Same onsemi family and package family; charge-voltage or variant details require verification

📋 Tham chiếu thay thế (không có trong danh mục)

NCP1835MN20T2

✅ Drop-In ⚠️ Thông số chưa được xác minh

📦 10-DFN (3x3)

Same onsemi family and package family; temperature or ordering-code details require verification

📋 Tham chiếu thay thế (không có trong danh mục)

NCP1835MN20R2G

✅ Drop-In ⚠️ Thông số chưa được xác minh

📦 10-DFN (3x3)

Same onsemi family and package family; green or environmental code details require verification

📋 Tham chiếu thay thế (không có trong danh mục)

NCP1835MN20R2

✅ Drop-In

onsemi

📦 10-DFN (3x3)

Integrated single-cell Li-ion battery charger · 1.0 A · 4.2 V · Constant-current, constant-voltage (CCCV) · 1 cell · Adjustable · Supported

Liên hệ để biết giá

Xem tài liệu →

NCP1835MN20R2 Thông số kỹ thuật

Product Type	Integrated single-cell Li-ion battery charger
Maximum Charge Current	1.0 A
Battery Charge Voltage	4.2 V
Charging Profile	Constant-current, constant-voltage (CCCV)
Battery Cell Count	1 cell
Charge Current Adjustability	Adjustable
Regulation Without Battery	Supported
Thermal Protection	Onboard thermal foldback
Hộp	10-terminal DFN, 3 x 3 mm, exposed pad
Kiểu lắp đặt	Surface mount
Marking Code	1835+4200
Manufacturer	onsemi
Battery Chemistry	Lithium-ion

Hướng dẫn cấu hình chân NCP1835MN20R2 10-terminal dfn, 3 x 3 mm, exposed pad

Cấu hình chân cho NCP1835MN20R2 (10-terminal dfn, 3 x 3 mm, exposed pad gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.

Bảng cấu hình chân 10-terminal dfn, 3 x 3 mm, exposed pad cho NCP1835MN20R2

Không có dữ liệu chân cụ thể sẵn có cho NCP1835MN20R2.

Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.

Ứng dụng tiêu biểu

NCP1835MN20R2 phù hợp cho 6 Áp dụngs: USB-Powered Mobile Accessories, Portable Audio Devices, Wearables and Smart Sensor Nodes, Battery-Powered Industrial Handhelds, Battery-Powered Measurement Instruments, Compact Consumer Electronics.

📱

USB-Powered Mobile Accessories

The NCP1835MN20R2 fits compact USB-powered accessories that use a single 4.2 V Li-ion cell and need up to 1.0 A charging. Its integrated linear charger can simplify the power path while adjustable charge current lets the designer match the battery’s safe charging rate. The key design tradeoff is efficiency: linear dissipation rises as the difference between USB input voltage and battery voltage increases. Confirm the source current, input range, thermal conditions, and protection requirements before production.

Được đề xuất

🎧

Portable Audio Devices

For headphones, portable speakers, and small audio accessories, the NCP1835MN20R2 provides a compact single-cell Li-ion charging solution with a maximum current of 1.0 A. The 10-DFN exposed-pad package helps preserve board area, while regulation without a battery supports manufacturing and service checks. Designers should account for the charger’s thermal dissipation and ensure the battery protection, audio load transient behavior, and enclosure temperature are compatible.

Được đề xuất

MKL03Z32VFK4R · NXP Semiconductors LPC11C14FBD48/301 · NXP Semiconductors

🧩

Wearables and Smart Sensor Nodes

The NCP1835MN20R2 is suitable for compact wearables and wireless sensor nodes that use one rechargeable Li-ion cell. Its 3 x 3 mm exposed-pad DFN package leaves more board area for sensors, radios, and battery protection than a larger charger package. The adjustable current and CCCV operation support controlled charging, but designers must verify the source voltage, battery temperature, peak load, and low-power shutdown behavior against the final system architecture.

Được đề xuất

MSP430FR2355TPTR · Texas Instruments MKL03Z32VFK4R · NXP Semiconductors

🏭

Battery-Powered Industrial Handhelds

The NCP1835MN20R2 can support single-cell charging in compact industrial handhelds and field-service devices. Its 1.0 A capability is useful for moderate-size batteries, while the exposed pad permits board-level heat spreading. The linear architecture may simplify EMI-sensitive designs, but enclosure temperature and charging time become important when the input source is limited. Validate battery qualification, charging at low temperature, fault response, and field reliability before deployment.

Được đề xuất

MSP430F6736AIPZ · Texas Instruments LTC4162EUFD-L42 · Analog Devices

🔧

Battery-Powered Measurement Instruments

For portable measurement and instrumentation products, the NCP1835MN20R2 offers a small integrated charger for one Li-ion cell. Its compact DFN footprint is valuable when the battery, protection circuit, display, and analog circuitry share limited board space. Designers should select the charge current based on battery specifications and thermal limits rather than simply using the 1.0 A maximum. The charger’s behavior without a battery and thermal foldback should also be validated in the production test fixture.

Được đề xuất

MAX14850ASE+ · Analog Devices MCP607T-I/ST · Microchip Technology

📺

Compact Consumer Electronics

The NCP1835MN20R2 is applicable to compact consumer products requiring integrated single-cell Li-ion charging, including small appliances, personal devices, and connected accessories. Its 10-DFN package supports dense layouts, while CCCV charging provides a familiar profile for standard 4.2 V cells. Before selecting it, confirm that the input source can supply the required current, that the battery includes appropriate protection, and that the system’s thermal environment keeps the charger within its intended operating limits.

Được đề xuất

LPC845M301JHI33 · NXP Semiconductors LTC4162EUFD-L42 · Analog Devices

Tóm tắt các sản phẩm được đề xuất

What is the maximum charging current of the NCP1835MN20R2?

The NCP1835MN20R2 supports charging currents up to 1.0 A for a single-cell Li-ion battery. According to the manufacturer description, it uses an integrated linear charger with a constant-current, constant-voltage profile. The actual operating current is set by the application and should be checked against the battery’s safe charge rate, thermal limits, and the latest onsemi datasheet.

What battery voltage does the NCP1835MN20R2 regulate?

The NCP1835MN20R2 is identified as a 4.2 V single-cell Li-ion charger. The available distributor and manufacturer descriptions identify the device as an integrated Li-ion charger for one cell, while the CC-CV profile reaches the selected charge-voltage level. Confirm the exact charge-voltage configuration and application limits against the current onsemi datasheet before layout release.

Where can I download the NCP1835MN20R2 datasheet?

You can download the NCP1835MN20R2 datasheet from the cited onsemi-related datasheet page at Alldatasheet: https://www.alldatasheet.net/datasheet-pdf/pdf/106471/ONSEMI/NCP1835MN20R2.html. The search results identify it as an integrated Li-ion charger document. For design release, use the latest manufacturer document and verify revision, pinout, electrical limits, and recommended application circuit.

Where can I buy the NCP1835MN20R2 online?

The NCP1835MN20R2 is listed by DigiKey Marketplace, Mouser, and other electronic distributors. DigiKey identifies it as an onsemi 1 A battery charger in a 10-DFN package, while Mouser lists it under battery-management ICs. Purchase availability and authorized-channel status can change, so confirm stock, lifecycle status, and manufacturer traceability before placing a production order.

What is the current price of the NCP1835MN20R2?

The available Heisener listing shows a unit price of approximately $0.5367, with an indicated quantity of 2,048 pieces and a lead time to be confirmed. This is an indicative distributor reference, not a guaranteed quote. Pricing and inventory should be rechecked as of the current date, and authorized distributor confirmation is recommended for production sourcing.

What is the lead time for the NCP1835MN20R2?

The verified Heisener result states that the lead time is to be confirmed and shows an estimated delivery window of March 17 to March 22. Because inventory and lead times change frequently, treat this as a reference snapshot rather than a guaranteed schedule. For a build plan, request a dated quotation from onsemi or an authorized distributor and confirm whether the tape-and-reel R2 configuration is available.

Is the NCP1835MN20R2 in stock?

The supplied distributor information shows an indicated quantity of 2,048 pieces from Heisener, while DigiKey Marketplace states that the part can be purchased and shipped today. Stock figures are time-sensitive and may include non-authorized or reference inventory. Confirm live stock, lot traceability, and delivery terms directly with the seller before committing to manufacturing.

Is the NCP1835MN20R2 a drop-in replacement for another charger?

The NCP1835MN20R2 is not guaranteed to be a drop-in replacement without comparing pinout, package, battery voltage, charge current, input range, and thermal limits. The available evidence confirms a 10-DFN exposed-pad package and 1 A single-cell charger function, but it does not provide a verified universal replacement list. Use the NCP1835MN20R2 datasheet and the candidate part’s datasheet for a proper compatibility review.

What is the best drop-in replacement for the NCP1835MN20R2?

There is no verified universal drop-in replacement identified in the supplied cross-reference results. The search results point to generic cross-reference tools but do not confirm a specific pin-compatible substitute for this exact onsemi charger. A valid replacement must match the 10-DFN footprint, exposed-pad thermal design, 4.2 V Li-ion charge function, current capability, and application enable behavior.

Can an NCP1835MN20R2 replace another 1A single-cell charger?

The NCP1835MN20R2 may replace another 1 A single-cell Li-ion charger only after a detailed electrical and mechanical comparison. Its confirmed characteristics include 1.0 A maximum charging current, 4.2 V charge voltage, adjustable charge current, and a 10-DFN exposed-pad package. Input voltage, pinout, safety behavior, and thermal performance remain important items to verify from the candidate datasheet.

What are the key specifications of the NCP1835MN20R2?

The key verified specifications are a 1.0 A maximum charge current, 4.2 V single-cell Li-ion charge voltage, adjustable charge current, CCCV operation, regulation without a battery, onboard thermal foldback, and a 10-terminal 3 x 3 mm DFN exposed-pad package. According to the available onsemi descriptions, low input-voltage capability supports portable and USB-oriented charging designs.

Does the NCP1835MN20R2 support adjustable charge current?

Yes. The NCP1835MN20R2 supports adjustable charge current, which allows the application to match charging speed to the battery and thermal environment. The maximum supported charging current is listed as 1.0 A. Set the current using the manufacturer’s recommended external components and confirm the resulting thermal dissipation at the actual input voltage and battery voltage.

What is the NCP1835MN20R2 package and pinout?

The NCP1835MN20R2 is supplied in a 10-terminal DFN package measuring 3 x 3 mm with an exposed pad. The verified search results identify the package and exposed-pad format, but they do not provide the complete pin names or numbering. Obtain the current manufacturer datasheet before wiring the PCB, especially for VBAT, IN, CE, and exposed-pad connections.

Is the NCP1835MN20R2 suitable for USB-powered devices?

The NCP1835MN20R2 is potentially suitable for USB-powered and other low-input-voltage portable applications because the available description emphasizes low input-voltage capability and integrated single-cell Li-ion charging. Suitability depends on the USB source current, input-voltage range, battery chemistry, thermal conditions, and required charge rate. Validate the complete power path and protection requirements before production use.

What is the difference between the NCP1835MN20R2 and a switching charger?

The NCP1835MN20R2 is an integrated linear charger, while a switching charger uses a switching regulator to transfer power more efficiently. Linear charging can simplify the power path and reduce switching-related EMI, but its efficiency depends on the difference between input and battery voltage. A switching charger may be preferable when efficiency, source current, or thermal dissipation is the dominant requirement.

How should the NCP1835MN20R2 be thermally designed?

The NCP1835MN20R2 uses a 10-DFN exposed-pad package, so PCB copper should be used to spread heat from the pad into the board. At the 1.0 A maximum charge current, dissipated power depends on the input-to-battery voltage difference and charger efficiency. Use the manufacturer’s thermal-foldback and layout guidance, provide adequate copper, and derate the design at the highest expected ambient temperature.

Does the NCP1835MN20R2 require a battery connected for regulation?

The available NCP1835MN20R2 description specifically states that it can maintain regulation without a battery. This feature is useful during production testing, cable-connection checks, and systems where the battery may be absent temporarily. The exact behavior should still be verified against the latest datasheet, including startup, standby, fault, and reverse-current conditions.

What type of battery can the NCP1835MN20R2 charge?

The NCP1835MN20R2 is intended for one-cell lithium-ion batteries and is identified as a 4.2 V Li-ion charger. Do not assume compatibility with every lithium-based chemistry, such as LiFePO4 or multi-cell packs, because their charge profiles and safety requirements differ. Confirm the battery manufacturer’s specified charge voltage, current, temperature limits, and protection circuitry before using the charger.

What should I verify before buying the NCP1835MN20R2 for production?

Verify the live manufacturer lifecycle status, authorized-channel inventory, tape-and-reel R2 packaging, price, and dated lead time. Then confirm the current datasheet revision, pinout, electrical limits, recommended external components, thermal-foldback behavior, and regulatory or material declarations. The supplied distributor data is a useful sourcing snapshot as of 2026-10-09 but should not replace a current procurement review.

Dữ liệu tham khảo kỹ thuật cho NCP1835MN20R2 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.

Hướng dẫn chọn lựa

Choose the NCP1835MN20R2 when the design uses one 4.2 V Li-ion cell and needs a compact integrated linear charger with up to 1.0 A current, adjustable programming, regulation without a battery, and thermal foldback. It is particularly attractive in small USB-powered products where a simple charger path and exposed-pad DFN footprint are valuable. Choose a switching charger instead when conversion efficiency, very high input-to-battery voltage ratios, or lower heat generation is more important than circuit simplicity. Do not select a generic substitute solely by the 1 A rating: compare the exact package, exposed pad, pinout, input range, charge termination, enable polarity, battery protection, and thermal limits. For production, verify the current onsemi datasheet and authorized-channel availability before releasing the PCB or placing a large order.

So sánh với các sản phẩm thay thế

Tham số	Sản phẩm này	NCP1835MN20R2	NCP1835MN25R2	NCP1835MN20T2	NCP1835MN20R2G
Package	10-DFN (3x3), exposed pad	10-DFN (3x3), exposed pad	10-DFN (3x3), exposed pad	10-DFN (3x3), exposed pad	10-DFN (3x3), exposed pad
Brand	onsemi	onsemi	onsemi	onsemi	onsemi

Bảo phân biệt quan trọng

Single-cell 4.2 V charging in a compact exposed-pad package (vsLTC4162EUFD-L42)
Regulation without a connected battery (vsMAX33040EAKA+)
Onboard thermal foldback (vsLTC4162EUFD-L42)

Ghi chú thiết kế

Estimated: power dissipation in a linear charger is approximately P = (VIN - VBAT) x ICHARGE before accounting for charger efficiency. At 5 V input, 4.2 V battery, and 1.0 A charge current, the ideal first-order loss is about 0.8 W; actual loss and temperature rise depend on the topology and package thermal resistance. Use the exposed-pad copper area specified by onsemi and verify temperature at the highest expected input voltage and ambient condition.

Place the input capacitor and battery-side components close to their associated pins, and connect the exposed pad to a properly sized thermal copper plane with minimal impedance. Keep high-current charge paths short and wide, maintain clean return-current routing, and follow the manufacturer’s recommended land pattern. Because the complete pin names and numbers are not present in the supplied verified data, verify them in the current datasheet before fabrication.

Do not select the 1.0 A maximum as the default charge current without checking the cell’s specified maximum charge rate, thermal limits, and protection circuitry. A lower programmed current may be appropriate for small wearables or constrained USB sources. Also account for the input-source current limit, cable losses, startup surge, and the possibility that the system load remains connected while charging.

Avoid treating the NCP1835MN20R2 as a universal Li-ion replacement. The verified data supports a single-cell 4.2 V CCCV charger with 1.0 A maximum current, adjustable current, regulation without a battery, and thermal foldback. Before substituting another charger, compare exact pinout, input voltage, charge termination, battery-temperature behavior, enable polarity, exposed-pad connection, and fault handling.

Thông tin tuân thủ

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Applicable

Không chì

Unknown

Không halogen

Unknown

Khoáng vật xung đột

Unknown

Compliance status was not explicitly provided in the verified web results. Obtain current onsemi material and environmental declarations before making a compliance claim.

Dữ liệu được xác minh vào: 2026-10-09 — dữ liệu được xác minh và quản lý bởi đội ngũ kỹ thuật phần cứng của XAIPART

Nguồn: Distributor, Manufacturer Datasheet, Manufacturer Datasheet, Distributor, Distributor, Distributor, Distributor, Manufacturer Datasheet, Distributor, Distributor

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Các bộ phận và thuật ngữ liên quan

onsemi NCP1835MN20R2 NCP1835MN25R2 NCP1835MN20T2 NCP1835MN20R2G integrated linear charger lithium-ion battery charger battery-management IC power-management IC single-cell Li-ion CCCV charging 1.0 A charge current 4.2 V charge voltage 10-DFN package exposed pad thermal foldback USB-powered devices wearable electronics battery protection onsemi datasheet Tape and Reel RoHS REACH