Reference Design Realizing Output Current Sensing and Limit, Plug-in Detection in Power Bank

(ACTIVE) PMP9776

Description & Features

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Description

A power bank is a portable device that can supply USB power using stored energy in its built-in batteries. This reference design demonstrates a circuit based on the TPS61236 for the USB output port of the power-bank. The reference design features a 5V and 2.4A output capability, auto detection of a portable device plug-in, output current sensing and limiting, short circuit protection, temperature protection, and battery voltage indication.

Features
  • 5V and 2.4A output capability in 95.5% efficiency
  • Auto detection for a portable device plug-in
  • USB cable voltage drop compensation
  • Battery voltage indication with four LEDs
  • Short circuit protection, temperature limit and protection

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP9776.1
(Output Voltage 1)
Vin (Min) (V)3
Vin (Max) (V)4.4
Vout (Nom) (V)5
Iout (Max) (A)2.4
Output Power (W)12
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBoost- Synchronous

TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430G2332  MSP430G2x32, MSP430G2x02 Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TPS2514  USB Dedicated Charging Port Controller  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS61236P  8-A Valley Current Synchronous Boost Converters with Constant Current Output  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
TPS782  500nA, IQ 150mA, Ultra-Low Quiescent Current Low-Dropout Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
MSP430G2332 Download Download
Download Download
Download
Download Download
TPS2514 Download Download
TPS61236P Download
TPS782 Download

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Technical Documents

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

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 1319 07 Dec 2015 22
Design files (5)
Title Abstract Type Size (KB) Date Views
ZIP 231 07 Dec 2015 7
ZIP 551 07 Dec 2015 8
PDF 427 07 Dec 2015 5
PDF 64 07 Dec 2015 10
PDF 93 07 Dec 2015 29

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