Inicio > Circuitos integrados IC > BQ27621YZFR-G1A

BQ27621YZFR-G1A

Single-cell Li-Ion fuel gauge, DVC algorithm, no sense resistor, I2C, DSBGA-9

12965

Inventario efectivo
Ir a la consulta

Image for reference only

Pieza del fabricante：

BQ27621YZFR-G1A

Paquete：

DSBGA-9 (YZF) - 1.62 x 1.58 x 0.625 mm, 0.5mm pitch

Marca：
Categorías de productos：
Compromiso de calidad
Envíos y pagos
Servicio y embalaje
Manual del producto
Otras recomendaciones que pueden interesarle.

C1206C226Z9VAC-TU

MA0805XR-106K-6R3ER

LQW18AN62NG00D

CC0603JRNPO9BN681

CC0603KRX7R7BB471

CC0603KRX7R9BB471

C3225X7T2W224K200AA

CC0603KRX7R8BB224

Descripción

Productos

The BQ27621YZFR-G1A is a system-side single-cell Li-Ion battery fuel gauge manufactured by Texas Instruments, utilizing the Dynamic Voltage Correlation (DVC) algorithm to report remaining capacity, state-of-charge (SOC), voltage, and temperature without requiring an external sense resistor. Packaged in a tiny 9-pin DSBGA (YZF) measuring only 1.62 x 1.58 mm, it communicates via a 400 kHz I2C interface and supports 4.2V, 4.3V, and 4.35V battery chemistries.

Especificaciones

Battery Chemistry Li-Ion / Li-Polymer (Single Cell)
Capacity Range 100 mAh to 32000 mAh
Comunicación I2C (400 kHz)
Tensión de alimentación 1.62V to 4.5V (powered from battery)
Operating Current 27 uA (typical)
Sense Resistor Not Required (DVC algorithm)
Temperatura de funcionamiento -40°C to +85°C
Paquete DSBGA-9 (1.62 x 1.58 mm, 0.5mm pitch)

Características

  • Dynamic Voltage Correlation algorithm eliminates need for sense resistor
  • Reports SOC, remaining capacity (mAh), battery voltage (mV), and temperature
  • Smoothing filter for stable SOC display output
  • Integrated LDO allows direct battery connection for power supply
  • Configurable SOC interrupt or battery-low digital output warning

Aplicaciones

  • Smartphones, feature phones, and tablet battery monitoring
  • Digital still cameras and camcorders
  • Handheld terminals and portable data collectors
  • MP3 and multimedia player battery gauges
  • Embedded or removable single-cell Li-Ion battery packs

The BQ27621YZFR-G1A from Texas Instruments is a system-side fuel gauge for single-cell Li-Ion batteries that uses the proprietary Dynamic Voltage Correlation (DVC) algorithm to estimate state-of-charge without an external current-sense resistor. The device connects directly to PACK+ and PACK- terminals and operates from the battery voltage through an integrated LDO. It reports remaining capacity (mAh), SOC (%), battery voltage (mV), and temperature via a 400 kHz I2C interface. A smoothing filter provides stable SOC readings, and the device automatically adjusts for self-discharge, temperature, and rate changes. The ultra-small DSBGA-9 package is ideal for space-constrained portable applications.

The BQ27621YZFR-G1A employs the Dynamic Voltage Correlation algorithm which correlates the battery open-circuit voltage (OCV) profile with measured terminal voltage during relaxation periods to determine the state-of-charge. Unlike coulomb-counting methods, DVC does not require continuous current measurement or a sense resistor. The device periodically samples battery voltage and temperature through its integrated ADC, and the firmware processes these measurements through the DVC model to compute SOC and remaining capacity. The integrated LDO powers the internal circuitry directly from the battery. The I2C interface allows the host MCU to read all battery parameters and configure device settings stored in internal flash.

Pin Nombre Tipo Función
A1 VDD Potencia Supply from battery via internal LDO
A2 SDA E/S I2C serial data (open-drain)
A3 SCL Entrada I2C serial clock
B1 P+ Analógico Battery PACK+ voltage sense input
B2 BAT Potencia Battery direct connection for internal LDO
B3 GPO Salida General purpose output: SOC interrupt or low-battery warning
C1 P- Analógico Battery PACK- connection (ground reference)
C2 TS Analógico Temperature sense input (internal or external NTC)
C3 REGIN Potencia LDO input bypass capacitor connection
  • Smartphone battery fuel gauging with SOC display and low-battery interrupt
  • Portable medical device battery monitoring with temperature compensation
  • Wearable device battery status reporting via I2C to host MCU
  • Digital camera removable battery pack state-of-charge indication
  • Industrial handheld terminal battery management without sense resistor
Fabricante Número de pieza Paquete Notas
TI BQ27520-G4 DSBGA-12 System-side Impedance Track gauge with LDO
TI BQ27441-G1A DSBGA-9 Similar DVC fuel gauge, different chemistry support
ADI MAX17055 WLP-15 ModelGauge m5 EZ, single-cell Li+
ST STC3115 QFN-12 Optimizer adaptive gauge, 2.5-4.5V
onsemi LC709203F WLCSP-8 1-cell Li+ gauge, I2C
Recomendar piezas

C1206C226Z9VAC-TU

22µF 6.3V Y5V MLCC, 1206 package, -20%/+80% tolerance, general-purpose decoupling

Marca:

Paquete:

1206 (3216 Metric, 3.20 × 1.60 × 1.70 mm)
En stock:
4287pcs

Ciclo de carga: 3~7 días
El pedido mínimo es de 1

Ir a la consulta

MA0805XR-106K-6R3ER

10µF 6.3V X7R MLCC, 0805 package, ±10% tolerance, lead-free RoHS compliant

Marca:

Paquete:

0805 (2012 Metric, 2.10 × 1.25 × 1.60 mm)
En stock:
6482pcs

Ciclo de carga: 3~7 días
El pedido mínimo es de 1

Ir a la consulta

LQW18AN62NG00D

62nH ±2% wirewound RF inductor, 0603, Q=38, SRF=2.3GHz, 280mA

Marca:

Paquete:

0603 (1608 Metric) – 1.6 × 0.8 × 0.8mm
En stock:
5170pcs

Ciclo de carga: 3~7 días
El pedido mínimo es de 1

Ir a la consulta

CC0603JRNPO9BN681

680pF 50V C0G/NP0 MLCC, 0603, ±5%, zero TC RF capacitor

Marca:

Paquete:

0603 (1608 Metric) – 1.6 × 0.8 × 0.8mm
En stock:
8979pcs

Ciclo de carga: 3~7 días
El pedido mínimo es de 1

Ir a la consulta

CC0603KRX7R7BB471

470pF 16V X7R MLCC, 0603, ±10%, low-voltage digital circuit decoupling

Marca:

Paquete:

0603 (1608 Metric) – 1.6 × 0.8 × 0.85mm
En stock:
5124pcs

Ciclo de carga: 3~7 días
El pedido mínimo es de 1

Ir a la consulta

CC0603KRX7R9BB471

470pF 50V X7R MLCC, 0603, ±10%, EMI suppression and signal filtering

Marca:

Paquete:

0603 (1608 Metric) – 1.6 × 0.8 × 0.8mm
En stock:
3158pcs

Ciclo de carga: 3~7 días
El pedido mínimo es de 1

Ir a la consulta
Garantía de calidad

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • Electrónica del automóvil: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
  • Productos sanitarios: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

Póngase en contacto con nosotros

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Envíos y pagos

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
  1. Accepted Payment Methods
  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
  • PayPal: Ideal for small orders, sample orders and quick payments.

  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

  2. Bank Charges

     

    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

  3. Payment Requirements
  • Sample and small orders: Shipment will be arranged upon full payment.
  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

2. Shipping & Delivery

We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
  1. Logistics Partners
  • International Express: DHL, FedEx, UPS, TNT
  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
  • In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
  1. Shipping Fee Rules
  • Shipping cost is calculated based on package weight, volume, destination and delivery method.
  • Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
  1. Shipment Tracking
     

    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

3. General Order Rules & Notes

  1. MOQ & Sample Service

     

    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

  2. Packaging Standard

     

    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

  1. Import Duties & Taxes

     

    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
  • In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

Servicio y embalaje

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

  • Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

Online Inquiry Form

Support Excel, PDF, CSV format files for full BOM list quotation

Submit your component procurement and custom packaging needs via the form below. We will provide a detailed quotation and professional solution within 1–8 working hours.

Empresa
perspectivas
Industrias
Todos los productos
Circuitos integrados
Dispositivos C&I
Discreto
Chips de memoria
MPU y MCU