Cascade Dual Charger Reference Design for 1S Li-Ion Battery Powered End Equipment

(ACTIVE) PMP15011

Description & Features

Technical Documents

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Key Document

Description

Smartphones and other handheld equipment with 3AHr+ 1S Li-Ion batteries require 3-A+ charger current for fast charging.  Parallel chargers allow for high charge currents, resulting in shorter charge times, while distributing the heat losses across the end equipment PCB, thereby preventing hotspots.  In cascade configuration, with PMID pin of master charger connected to VBUS of slave charger, input current limit management is handled through the master charger, thereby simplifying software development.  

Features
  • Master charger: provide system power, charging current, supplement mode, temperature profile and 2.4A USB on-the-go boost current in 4mm x 4mm QFN package
  • Slave charger: only provide extra fast charge current, up to 3A in 2.8mm x 2.5mm WCSP package
  • Innovative input source detection and current optimizer (ICO) with input dynamic power management (DPM)
  • Integrated 7-bit ADC for battery and adaptor monitoring

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP15011.1
(Output Voltage 1)
Vin (Min) (V)4.5
Vin (Max) (V)14
Vout (Nom) (V)4.2
Iout (Max) (A)5
Output Power (W)21
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
BQ25890  1S 5A Fast Charger MaxCharge™ Technology for High Input Voltage and Adjustable USB OTG Boost  Battery Management Products  Sample & Buy View Design Kits & Evaluation Modules
BQ25898C  I2C Controlled Single Cell 3A Charger for High Input Voltage with DSBGA Package  Battery Management Products  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Datasheet (1)
Title Abstract Type Size (KB) Date Views
PDF 1866 03 May 2016
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 4925 03 Nov 2016 470
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 624 21 Nov 2016 4
ZIP 1184 21 Nov 2016 46
PDF 1919 21 Nov 2016 37
PDF 489 21 Nov 2016 30
PDF 68 21 Nov 2016 36
PDF 640 21 Nov 2016 228
Related Tools & Software

Reference Designs (1)

Name Part Number Tool Type
Dual Battery Charger IC Reference Design (connected in Cascode Configuration)  TIDA-00590  TI Designs

Software (1)

Name Part Number Software Type
Battery Management Studio (bqStudio) Software  BQSTUDIO  Application Software & Frameworks 



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