Bi-directional Battery Power System +USB A 5V2A Output Reference Design
PMP40294
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Key Document

Description

The PMP40294 reference design is designed for a high capacity battery packs which requires more and more charging and discharging power. It can support a wide input voltgae (5~20V) from any adaptor and deliver the maximal charging current up to 3A to a 3S battery pack. By adopting the bi-directional buck-boost controller BQ25703A, the power stream can be flowed bidirectionally in the same power stage. In reverse mode, it can deliver 5/9/12/14.5/15/16/19/20V 3A from batteries to the port. The digital progemmability provides further extended functions as well.  

Features
  • Bi-directional power flow
  • Wide input voltage range from 5V to 20V
  • Eight output voltage options
  • Digital programmability
  • Small size with low component count

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP40294.1
(Output Voltage 1)
PMP40294.2
(Output Voltage 2)
PMP40294.3
(Output Voltage 3)
PMP40294.4
(Output Voltage 4)
PMP40294.5
(Output Voltage 5)
Vin (Min) (V)55555
Vin (Max) (V)2020202020
Vout (Nom) (V)59121520
Iout (Max) (A)33332.25
Output Power (W)1527364545
Isolated/Non-IsolatedNon-IsolatedNon-IsolatedNon-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDCDCDCDC
TopologyBuck Boost- 4 SwitchBuck Boost- 4 SwitchBuck Boost- 4 SwitchBuck Boost- 4 SwitchBuck Boost- 4 Switch

TI Devices (10)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
BQ25703A  NVDC I2C Battery Buck-Boost Charge Controller with System Power Monitor & Processor  Battery management  Sample & Buy View Design Kits & Evaluation Modules
CSD17308Q3  30V, N ch NexFET MOSFET™, single SON3x3, 11.8mOhm  MOSFETs  Sample & Buy Not Available
CSD17571Q2  30V, N ch NexFET MOSFET™, single SON2x2, 29mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
CSD25404Q3  -20V, P ch NexFET MOSFET™, single SON 3x3, 6.5mOhm  MOSFETs  Sample & Buy Not Available
CSD25483F4  -20V, P ch NexFET MOSFET™, single LGA 0.6x1.0, 245mOhm  MOSFETs  Sample & Buy Not Available
MSP430G2955  MSP430G2x55 Mixed Signal Microcontroller  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
TLV62130  3-17V 3A Step-Down Converter in 3x3 QFN Package  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPD2E1B06  2-Channel System-Level ESD Protection Device for USB Interfaces  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS2514A  USB Dedicated Charging Port Controller  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS709  150-mA 30-V ultra-low-IQ wide-input low-dropout (LDO) regulator with reverse current protection  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
BQ25703A Download Download
CSD17308Q3 VSON-CLIP (DQG)| 8 Download Download
CSD17571Q2 WSON (DQK)| 6 Download Download
CSD25404Q3 VSON-CLIP (DQG)| 8 Download Download
MSP430G2955 Download -
Download Download
TLV62130 Download
TPD2E1B06 Download
TPS2514A Download
TPS709 Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 2803 03 Nov 2017
Design files (6)
Title Type Size (KB) Date
ZIP 420 03 Nov 2017
ZIP 1802 03 Nov 2017
PDF 1625 03 Nov 2017
PDF 307 03 Nov 2017
PDF 68 03 Nov 2017
PDF 340 03 Nov 2017

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