PMP15011

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

PMP15011

Design files

Overview

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
Output voltage options PMP15011.1
Vin (Min) (V) 4.5
Vin (Max) (V) 14
Vout (Nom) (V) 4.2
Iout (Max) (A) 5
Output Power (W) 21
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Synchronous

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUC92.PDF (4995 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDROS4.PDF (640 K)

Detailed schematic diagram for design layout and components

TIDROS5.PDF (68 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDROS6.PDF (489 K)

Detailed overview of design layout for component placement

TIDROS8.ZIP (1184 K)

Files used for 3D models or 2D drawings of IC components

TIDCCX2.ZIP (624 K)

Design file that contains information on physical board layer of design PCB

TIDROS7.PDF (1919 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Battery charger ICs

BQ25890I2C 1cell 5A buck battery charger Maxcharge™ tech for high input with D+/D-

Data sheet document-pdfAcrobat PDF open-in-new HTML
Battery charger ICs

BQ25898CI2C 1cell 3A buck battery charger for Parallel Charging Applications

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Test report Cascade Dual Charger Reference Design for 1S Li-Ion Battery-Powered Equipment Nov. 03, 2016

Related design resources

Software development

APPLICATION SOFTWARE & FRAMEWORK
BQSTUDIO Battery Management Studio (bqStudio) Software

Reference designs

REFERENCE DESIGN
TIDA-00590 Dual Battery Charger IC Reference Design (connected in Cascode Configuration)

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