Product Folder Sample & Buy Support & Community Tools & Software Technical Documents bq24770, bq24773 SLUSCB0 – MAY 2015 bq2477x NVDC Battery Charge Controller With System Power Monitor and Processor Hot Indicator 1 Features 2 Applications • • • • 1 • • • • • • • Host-controlled NVDC-1 1S-4S Battery Charge Controller with 4.5-24 V Input Range – Support SMBus (bq24770) and I2C (bq24773) – System Instant-on Operation with no Battery or Deeply Discharged Battery – Supplement Mode with Synchronous BATFET Control when Adaptor is fully loaded Ultra Fast Input Current DPM at 100 μs Ultra Low Quiescent Current of 600 µA and High PFM Light Load Efficiency >80% at 20 mA Load to Meet Energy Star and ErP Lot6. High Accuracy Power / Current Monitor for CPU Throttling – Comprehensive PROCHOT Profile – Input and Battery Current Monitor (IADP/IBAT) – System Power Monitor (PMON) Programmable Input Current Limit, Charge Voltage, Charge Current and Minimum System Voltage Regulation – ±0.5% Charge Voltage (16 mV/step) – ±2% Input/charge Current (64 mA/step) – ±2% 40x Input / 16x Discharge / 20x Charge Current Monitor Support Battery LEARN Function High Integration – NMOS ACFET and RBFET Driver – PMOS battery FET Gate Driver – Internal Loop Compensation – Independent Comparator – Automatic Trickle Charge to Wake up Gas Gauge 600kHz to 1.2MHz Programmable Switching Frequency Ultrabook, Notebook, Detachable, and Tablet PC Handheld Terminal Industrial, Medical, Portable Equipment 3 Description The bq2477x is high-efficiency, synchronous, NVDC1 battery charge controllers, offering low component count for space-constraint, multi-chemistry battery charging applications. The power path management allows the system to be regulated at battery voltage but does not drop below system minimum voltage (programmable). With this feature, the system keeps operating even when the battery is completely discharged or removed. The power path management allows the battery to provide supplement current to the system to keep the input supply from being overloaded. The bq2477x provides drivers and power path management for N-channel ACFET and reverse blocking FET. The devices provides driver to control NVDC operation of external P-channel battery FET. It also drives high-side and low-side MOSFETs of the switching regulator. The bq2477x monitors adapter current (IADP), battery charge/discharge current (IBAT) and system power (PMON). The flexibly programmed PROCHOT output goes directly to CPU for throttle back when needed. Device Information(1) PART NUMBER bq24770 bq24773 PACKAGE BODY SIZE (NOM) WQFN (28-Pin) 4.00mm x 4.00mm2 (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 Simplified Schematic Light Load Efficiency (VIN = 19.5 V) R AC Adapter 4.5-24V Enhanced Safety: OCP, OVP, FET Short 100 N-FET Driver 95 90 SMBus Controls V and I with high accuracy SMBus Bq24770 P-FET Driver NVDC Charge Controller RSR 85 Efficiency (%) Adapter Detection SYS 80 75 70 65 HOST 60 IADP, IDCHG, PMON, PROCHOT VSYS = 9.0V VSYS = 13.5V 55 50 0 0.02 0.04 0.06 0.08 0.1 System Load Current (A) 0.12 0.14 D003 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. bq24770, bq24773 SLUSCB0 – MAY 2015 www.ti.com 5 Revision History 2 DATE REVISION NOTES May 2015 * Initial Release Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Product Folder Links: bq24770 bq24773 bq24770, bq24773 www.ti.com SLUSCB0 – MAY 2015 6 Device and Documentation Support 6.1 Related Links The table below lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to sample or buy. Table 1. Related Links PARTS PRODUCT FOLDER SAMPLE & BUY TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY bq24770 Click here Click here Click here Click here Click here bq24773 Click here Click here Click here Click here Click here 6.2 Trademarks All trademarks are the property of their respective owners. 6.3 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 6.4 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 7 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Product Folder Links: bq24770 bq24773 3 PACKAGE OPTION ADDENDUM www.ti.com 27-May-2015 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) BQ24770RUYR ACTIVE WQFN RUY 28 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 BQ 24770 BQ24770RUYT ACTIVE WQFN RUY 28 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 BQ 24770 BQ24773RUYR ACTIVE WQFN RUY 28 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 BQ 24773 BQ24773RUYT ACTIVE WQFN RUY 28 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 BQ 24773 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 27-May-2015 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. 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Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 22-May-2015 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing BQ24770RUYR WQFN RUY 28 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3000 330.0 12.4 4.25 4.25 1.15 8.0 12.0 Q2 BQ24770RUYT WQFN RUY 28 250 180.0 12.4 4.25 4.25 1.15 8.0 12.0 Q2 BQ24773RUYR WQFN RUY 28 3000 330.0 12.4 4.25 4.25 1.15 8.0 12.0 Q2 BQ24773RUYT WQFN RUY 28 250 180.0 12.4 4.25 4.25 1.15 8.0 12.0 Q2 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 22-May-2015 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) BQ24770RUYR WQFN RUY 28 3000 367.0 367.0 35.0 BQ24770RUYT WQFN RUY 28 250 210.0 185.0 35.0 BQ24773RUYR WQFN RUY 28 3000 367.0 367.0 35.0 BQ24773RUYT WQFN RUY 28 250 210.0 185.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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